The Space Age is a period encompassing the activities related to the space race , space exploration , space technology , and the cultural developments influenced by these events, beginning with the launch of Sputnik 1 on October 4, 1957, and continuing to the present.
159-658: This period is characterized by changes in emphasis on particular areas of space exploration and applications. Initially, the United States and the Soviet Union invested unprecedented amounts of resources in breaking records and being first to meet milestones in crewed and uncrewed exploration. The United States established the National Aeronautics and Space Administration ( NASA ) and the USSR established
318-577: A lower house based on population; and the Senate , an upper house based on equal representation for each state. Federalism provides substantial autonomy to the 50 states, while the country's political culture promotes liberty , equality , individualism , personal autonomy , and limited government . One of the world's most developed countries , the United States has had the largest nominal GDP since about 1890 and accounted for over 15% of
477-580: A " Special Relationship " with the United Kingdom and strong ties with Canada , Australia , New Zealand , the Philippines , Japan , South Korea , Israel , and several European Union countries ( France , Italy , Germany , Spain , and Poland ). The U.S. works closely with its NATO allies on military and national security issues, and with countries in the Americas through
636-489: A German V-2 rocket became the first manmade object to enter space , albeit only briefly. In March 1926 American rocket pioneer Robert H. Goddard launched the world's first liquid fuel rocket but it did not reach outer space. Since Germans undertook the sub-orbital V-2 rocket flight in secrecy, it was not initially public knowledge. Also, the German launches, as well as the subsequent sounding rocket tests performed in both
795-436: A NASA technology for scratch-resistant lenses, developed for protecting space equipment from scratching in space, especially helmet visors. So-called space blankets , developed in 1964 for the space program, are lightweight and reflect infrared radiation. These items are often included in first aid kits. BeeHex developed 3D printing systems for food such as pizza, desserts, and icings following an SBIR grant that began as
954-455: A NASA-funded project. NASA funding under the SBIR program and work with NASA scientists advanced the development of a thermoelectric deicing system called Thermawing , a DC-powered air conditioner for single-engine aircraft called Thermacool, and high-output alternators to run them both. Thermawing allows pilots to safely fly through ice encounters and provides pilots of single-engine aircraft
1113-542: A coordinated, continent-wide military effort. Finally, deteriorating relations between the British military establishment and the colonists, relations that were already less than positive, set the stage for further distrust and dislike of British troops. Following their victory in the French and Indian War, Britain began to assert greater control over local colonial affairs, resulting in colonial political resistance ; one of
1272-534: A decentralized government that operated until 1789. After the British surrender at the siege of Yorktown in 1781 American sovereignty was internationally recognized by the Treaty of Paris (1783), through which the U.S. gained territory stretching west to the Mississippi River, north to present-day Canada, and south to Spanish Florida . The Northwest Ordinance (1787) established the precedent by which
1431-1076: A discovery made in the 1990s at the Wisconsin Center for Space Automation and Robotics where researchers, with the help of the Space Product Development Program at Marshall Space Flight Center, were trying to find a way to eliminate ethylene that accumulates around plants growing in spacecraft and then found a solution: light-induced oxidation. When UV light hits titanium dioxide, it frees electrons that turn oxygen and moisture into charged particles that oxidize air contaminants such as volatile organic compounds , turning them into carbon dioxide and water. This air scrubber also eliminates other airborne organic compounds and neutralized bacteria, viruses, and molds. An air scrubber with light-induced oxidation can clean air, surfaces, and clothes and nearly 30 Major League Baseball teams now have this scrubber technology in their facilities. NASA noticed that astronauts came back to Earth with
1590-407: A few prominent industrialists , largely by their formation of trusts and monopolies to prevent competition. Tycoons led the nation's expansion in the railroad , petroleum , and steel industries. The United States emerged as a pioneer of the automotive industry . These changes were accompanied by significant increases in economic inequality , slum conditions , and social unrest , creating
1749-742: A fibrous material, five times stronger than steel, for NASA to use in parachute shrouds to soft-land the Viking Lander spacecraft on the Martian surface. Recognizing the durability of the material, Goodyear expanded the technology and went on to produce a new radial tire with a tread life expected to be 10,000 miles (16,000 km) greater than conventional radials. NASA contracted with Intelligent Optical Systems (IOS) to develop moisture- and pH-sensitive sensors to warn of corrosive conditions in aircraft before damage occurs. This sensor changes color in response to contact with its target. After completing
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#17327662254291908-490: A flare that can safely destroy landmines. The fuel that is left unused from a launch will become a solid, which cannot be reused but can be used as an ingredient needed to create the Demining Device flare. The Demining Device flare uses a battery-triggered electric match to ignite and neutralize land mines in the field without detonation. The flare uses the solid rocket fuel to burn a hole in a mine's case and burns away
2067-638: A founding member of the World Bank , Organization of American States , NATO , and the United Nations , as well as a permanent member of the UN Security Council . The first documented use of the phrase "United States of America" is a letter from January 2, 1776. Stephen Moylan , a Continental Army aide to General George Washington , wrote to Joseph Reed , Washington's aide-de-camp , seeking to go "with full and ample powers from
2226-732: A fraction of the cost of developing a new program. NASA Structural Analysis Computer Software was inducted into the Space Foundation Space Technology Hall of Fame in 1988. Embedded Web Technology (EWT) software—originally developed by NASA for use by astronauts operating experiments on the International Space Station—lets a user monitor and/or control a device remotely over the Internet. NASA supplied this technology and guidance to TMIO LLC, which developed remote control and monitoring of
2385-620: A joint crewed Moon landing , but after the assassination of Kennedy in November 1963 and Khrushchev's removal from office in October 1964, the competition between the two nations' crewed space programs heated up, and talk of cooperation became less common, due to tense relations and military implications. Only later the United States and the Soviet Union slowly started to exchange more information and engage in joint programs, particularly in
2544-409: A lack of muscle mass and bone density in space because human bodies are used to being in gravity. Regular weight-lifting techniques and machines do not work well in space to help build muscle. Inventor Paul Francis, with funding from Johnson Space Center, designed a "weightless weight trainer" that uses elastic resistance. This trainer was launched to the space station in 2000, and a commercial version of
2703-425: A new intelligent oven product named "Connect Io." With combined cooling and heating capabilities, Connect Io refrigerates food until a customized pre-programmable cooking cycle begins. The menu allows the user to simply enter the dinner time, and the oven automatically switches from refrigeration to the cooking cycle, so that the meal will be ready as the family arrives home for dinner. On July 26, 2011, NASA released
2862-518: A painful condition that results when pressure within muscles builds to dangerous levels. Faced with the problem of how and what to feed an astronaut in a sealed capsule under weightless conditions while planning for human spaceflight, NASA enlisted the aid of The Pillsbury Company to address two principal concerns: eliminating crumbs of food that might contaminate the spacecraft's atmosphere and sensitive instruments, and assuring absolute absence of disease-producing bacteria and toxins. Pillsbury developed
3021-598: A period of heightened, overt racism following Reconstruction, a time often called the nadir of American race relations . A series of Supreme Court decisions, including Plessy v. Ferguson , emptied the Fourteenth and Fifteenth Amendments of their force, allowing Jim Crow laws in the South to remain unchecked, sundown towns in the Midwest, and segregation in communities across the country , which would be reinforced by
3180-488: A prominent leader in the early 1960s. The Great Society plan of President Lyndon Johnson 's administration resulted in groundbreaking and broad-reaching laws, policies and a constitutional amendment to counteract some of the worst effects of lingering institutional racism . The counterculture movement in the U.S. brought significant social changes, including the liberalization of attitudes toward recreational drug use and sexuality . It also encouraged open defiance of
3339-421: A searchable database of these technologies. When products first spun off from space research, NASA presented a black and white report in 1973, titled the "Technology Utilization Program Report". Because of interest in the reports, NASA decided to create the annual publications in color. Spinoff was first published in 1976, and since then, NASA has distributed free copies to universities, the media, inventors and
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#17327662254293498-526: A sense of manifest destiny . The Missouri Compromise attempted to balance the desire of northern states to prevent the expansion of slavery into new territories with that of southern states to extend it, admitting Missouri as a slave state and Maine as a free state. It further prohibited slavery in all other lands of the Louisiana Purchase north of the 36°30′ parallel . As Americans expanded further into land inhabited by Native Americans,
3657-614: A sense of American identity as well. Men who otherwise never left their own colony now traveled across the continent to fight alongside men from decidedly different backgrounds but who were no less "American". British officers trained American officers for battle, most notably George Washington ; these officers would lend their skills and expertise to the colonists' cause during the American Revolutionary War to come. In addition, colonial legislatures and officials found it necessary to cooperate intensively in pursuit of
3816-591: A space age-enriched swimsuit. The resulting LZR Racer reduced skin friction drag 24% more than the previous Speedo swimsuit. In March 2008, athletes wearing the LZR Racer broke 13 swimming world records. The invention of CMOS image sensors used in products such as mobile phones and GoPro action cameras traces back to NASA JPL scientist Eric Fossum who wanted to miniaturize cameras for interplanetary missions. Fossum invented CMOS image sensors that have become NASA's most ubiquitous spinoff technology, enabling
3975-572: A status solidified after its involvement in World War I . After Japan 's attack on Pearl Harbor in December 1941, the U.S. entered World War II . Its aftermath left the U.S. and the Soviet Union as the world's two superpowers and led to the Cold War , during which both countries struggled for ideological dominance and international influence . Following the Soviet Union's collapse and
4134-605: A tough and stable insulating layer over the steel for up to 4 hours of fire protection, ultimately to slow building collapse and provide more time for escape. Firefighting equipment in the United States is based on lightweight materials developed for the U.S. Space Program. NASA and the National Bureau of Standards created a lightweight breathing system including face mask, frame, harness, and air bottle, using an aluminum composite material developed by NASA for use on rocket casings. The broadest fire-related technology transfer
4293-401: A year). Juvenile correctional facilities are operated by local or state governments and serve as longer-term placements for any minor adjudicated as delinquent and ordered by a judge to be confined. As of January 2023, the United States has the sixth-highest per capita incarceration rate in the world—531 people per 100,000 inhabitants—and the largest prison and jail population in
4452-586: Is SpaceX which became the proprietor of one of world's most capable operational launch vehicle when they launched their current largest rocket, the Falcon Heavy in 2018. Elon Musk , the founder and CEO of SpaceX, has put forward the goal of establishing a colony of one million people on Mars by 2050 and the company is developing its Starship launch vehicle to facilitate this. Since the Demo-2 mission for NASA in 2020 in which SpaceX launched astronauts for
4611-610: Is Comtech Telecommunications, which is a major provider of location-based services. This technology is used in cell phones so that 9-1-1 emergency callers can be located. Dr. Alain Gachet founded Radar Technologies International (RTI) in 1999 to use satellite generated data to identify probable locations of precious metals and during its use found it could also detect water. The system developed with this data, WATEX, uses about 80 percent of its data inputs from publicly available NASA information. This free information allowed RTI to develop
4770-580: Is a country primarily located in North America . It is a federal union of 50 states and a federal capital district, Washington, D.C. The 48 contiguous states border Canada to the north and Mexico to the south, with the states of Alaska to the northwest and the archipelagic Hawaii in the Pacific Ocean . The United States also asserts sovereignty over five major island territories and various uninhabited islands . The country has
4929-581: Is a tool for video enhancement and analysis offering support of full-resolution digital video, stabilization, frame-by-frame analysis, conversion of analog video to digital storage formats, and increased visibility of filmed subjects without altering underlying footage. Aside from law enforcement and security applications, VAS has also been adapted to serve the military for reconnaissance, weapons deployment, damage assessment, training, and mission debriefing. Thiokol has used surplus rocket fuel through an agreement with NASA's Marshall Space Flight Center to produce
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5088-591: Is believed to be the first widespread culture in the Americas. Over time, indigenous North American cultures grew increasingly sophisticated, and some, such as the Mississippian culture , developed agriculture , architecture , and complex societies . In the post-archaic period , the Mississippian cultures were located in the midwestern , eastern , and southern regions, and the Algonquian in
5247-702: Is commonly used to define when the space age began. The Space Race was the first era of the Space Age. It was a race between the United States and the Soviet Union which began with the Soviet Union's October 4, 1957, launch of Earth's first artificial satellite Sputnik 1 during the International Geophysical Year . Weighing 83.6 kg (184.3 lb) and orbiting the Earth once every 98 minutes. The race resulted in rapid advances in rocketry , materials science , and other areas. One of
5406-498: Is known as the presidential system , in contrast to the parliamentary system , where the executive is part of the legislative body. Many countries around the world imitated this aspect of the 1789 Constitution of the United States , especially in the Americas. The Constitution is silent on political parties. However, they developed independently in the 18th century with the Federalist and Anti-Federalist parties. Since then,
5565-438: Is now the United States experienced conflicts with Native Americans, they also engaged in trade, exchanging European tools for food and animal pelts. Relations ranged from close cooperation to warfare and massacres. The colonial authorities often pursued policies that forced Native Americans to adopt European lifestyles, including conversion to Christianity. Along the eastern seaboard, settlers trafficked African slaves through
5724-443: Is the breathing apparatus for protection from smoke inhalation injury. Additionally, NASA's inductorless electronic circuit technology led to lower-cost, more rugged, short-range two-way radio now used by firefighters. NASA also helped develop a specialized mask weighing less than 3 ounces (85 g) to protect the physically impaired from injuries to the face and head, as well as flexible, heat-resistant materials—developed to protect
5883-552: Is the federal agency charged with addressing most environmental-related issues . The idea of wilderness has shaped the management of public lands since 1964, with the Wilderness Act . The Endangered Species Act of 1973 provides a way to protect threatened and endangered species and their habitats. The United States Fish and Wildlife Service implements and enforces the Act. In 2024, the U.S. ranked 34th among 180 countries in
6042-603: The Allies of World War I , helping to turn the tide against the Central Powers . In 1920, a constitutional amendment granted nationwide women's suffrage . During the 1920s and '30s, radio for mass communication and the invention of early television transformed communications nationwide. The Wall Street Crash of 1929 triggered the Great Depression , which President Franklin D. Roosevelt responded to with
6201-511: The Apollo program that captured the imagination of much of the world's population. From 1961 to 1964, NASA's budget was increased almost 500 percent, and the lunar landing program eventually involved some 34,000 NASA employees and 375,000 employees of industrial and university contractors. The Soviet Union proceeded tentatively with its own lunar landing program which it did not publicly acknowledge, partly due to internal debate over its necessity and
6360-553: The Atlantic slave trade . The original Thirteen Colonies that would later found the United States were administered as possessions of Great Britain , and had local governments with elections open to most white male property owners . The colonial population grew rapidly, eclipsing Native American populations; by the 1770s, the natural increase of the population was such that only a small minority of Americans had been born overseas. The colonies' distance from Britain allowed for
6519-577: The Electron rocket and the Photon satellite bus for sending spacecraft further into the Solar System, the company also plans to introduce the larger Neutron launch vehicle in 2025. Elon Musk has the stated that the main reason he founded SpaceX is to make humanity a multiplanetary species, and cites reasons for doing it including: To ensure the long-term continuation of our species and protecting
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6678-549: The Environmental Performance Index . The country joined the Paris Agreement on climate change in 2016 and has many other environmental commitments. The United States is a federal republic of 50 states and a separate federal capital district, Washington, D.C. It also asserts sovereignty over five unincorporated territories and several uninhabited island possessions . The U.S. is
6837-500: The Federal Bureau of Investigation (FBI) and the U.S. Marshals Service have national jurisdiction and specialized duties, such as protecting civil rights , national security and enforcing U.S. federal courts ' rulings and federal laws. State courts conduct most civil and criminal trials, and federal courts handle designated crimes and appeals of state court decisions . There is no unified "criminal justice system" in
6996-720: The Great Lakes , Mississippi River and Gulf of Mexico . British colonization of the East Coast began with the Virginia Colony (1607) and Plymouth Colony (1620). The Mayflower Compact and the Fundamental Orders of Connecticut established precedents for representative self-governance and constitutionalism that would develop throughout the American colonies. While European settlers in what
7155-719: The Great Lakes region and along the Eastern Seaboard , while the Hohokam culture and Ancestral Puebloans inhabited the southwest . Native population estimates of what is now the United States before the arrival of European immigrants range from around 500,000 to nearly 10 million. Christopher Columbus began exploring the Caribbean for Spain in 1492, leading to Spanish-speaking settlements and missions from Puerto Rico and Florida to New Mexico and California . France established its own settlements along
7314-593: The International Space Station . NASA is currently constructing a deep-space crew capsule named the Orion . NASA's goal with this new space capsule is to carry humans to Mars . The Orion spacecraft is due to be completed in the early 2020s. NASA is hoping that this mission will "usher in a new era of space exploration." Another major factor affecting the current Space Age is the privatization of space flight . A significant private spaceflight company
7473-754: The Kosmicheskaya programma SSSR to meet these goals. This period of competition gave way to cooperation between those nations and emphasis on scientific research and commercial applications of space-based technology. Eventually other nations became spacefaring. They formed organizations such as the European Space Agency ( ESA ), the Japan Aerospace Exploration Agency ( JAXA ), the Indian Space Research Organization ( ISRO ), and
7632-596: The Midwest . At the same time, about one million French Canadians migrated from Quebec to New England . During the Great Migration , millions of African Americans left the rural South for urban areas in the North. Alaska was purchased from Russia in 1867. The Compromise of 1877 effectively ended Reconstruction and white supremacists took local control of Southern politics . African Americans endured
7791-688: The National Park Service and other agencies. About 28% of the country's land is publicly owned and federally managed, primarily in the Western States . Most of this land is protected , though some is leased for commercial use, and less than one percent is used for military purposes. Environmental issues in the United States include debates on non-renewable resources and nuclear energy , air and water pollution , biodiversity , logging and deforestation , and climate change . The U.S. Environmental Protection Agency (EPA)
7950-596: The New Deal , a series of sweeping programs and public works projects combined with financial reforms and regulations . All were intended to protect against future economic depressions. Initially neutral during World War II , the U.S. began supplying war materiel to the Allies of World War II in March 1941 and entered the war in December after the Empire of Japan 's attack on Pearl Harbor . The U.S. developed
8109-778: The Organization of American States and the United States–Mexico–Canada Free Trade Agreement . In South America, Colombia is traditionally considered to be the closest ally of the United States. The U.S. exercises full international defense authority and responsibility for Micronesia , the Marshall Islands , and Palau through the Compact of Free Association . It has increasingly conducted strategic cooperation with India , but its ties with China have steadily deteriorated. Since 2014,
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#17327662254298268-648: The Pentium microprocessor in accordance with Moore's law , rechargeable lithium-ion batteries , the first gene therapy trial, and cloning either emerged in the U.S. or were improved upon there. The Human Genome Project was formally launched in 1990, while Nasdaq became the first stock market in the United States to trade online in 1998. In the Gulf War of 1991, an American-led international coalition of states expelled an Iraqi invasion force that had occupied neighboring Kuwait . The September 11 attacks on
8427-474: The Shuttle-Mir program and its follow-up the International Space Station . While participation of private actors and other countries beside the Soviet Union and the United States in spaceflight had been the case from the very start of spaceflight development. A first commercial satellite had been launched by 1962, as well as in 1965 a third country achieving orbital spaceflight . The very beginning of
8586-591: The Spanish–American War . (The Philippines was granted full independence from the U.S. on July 4, 1946, following World War II. Puerto Rico and Guam have remained U.S. territories.) American Samoa was acquired by the United States in 1900 after the Second Samoan Civil War . The U.S. Virgin Islands were purchased from Denmark in 1917. The United States entered World War I alongside
8745-700: The cotton gin made the institution increasingly profitable for Southern elites . This sectional conflict regarding slavery culminated in the American Civil War (1861–1865). Eleven slave states seceded and formed the Confederate States of America , while the other states remained in the Union . War broke out in April 1861 after the Confederates bombarded Fort Sumter . After
8904-416: The end of the Cold War in 1991, the U.S. emerged as the world's sole superpower , wielding significant geopolitical influence globally . The U.S. national government is a presidential constitutional federal republic and liberal democracy with three separate branches : legislative , executive , and judicial . It has a bicameral national legislature composed of the House of Representatives ,
9063-413: The fall of communism and the collapse of the Soviet Union , which marked the end of the Cold War and left the United States as the world's sole superpower . The 1990s saw the longest recorded economic expansion in American history , a dramatic decline in U.S. crime rates , and advances in technology . Throughout this decade, technological innovations such as the World Wide Web , the evolution of
9222-400: The global economy in 2023. It possesses by far the largest amount of wealth of any country and has the highest disposable household income per capita among OECD countries. The U.S. ranks among the world's highest in economic competitiveness , productivity , innovation , human rights , and higher education . Its hard power and cultural influence have a global reach. The U.S. is
9381-419: The space age , the launch of Sputnik was in the context of international exchange, the International Geophysical Year 1957. Also soon into the space age the international community came together starting to negotiate dedicated international law governing outer space activity . In the 1970s the Soviet Union started to invite other countries to fly their people into space through its Intercosmos program and
9540-428: The "light of consciousness". He also said, You want to wake up in the morning and think the future is going to be great - and that's what being a spacefaring civilization is all about. It's about believing in the future and thinking that the future will be better than the past. And I can't think of anything more exciting than going out there and being among the stars. The Space Age marked a major comeback and return with
9699-406: The 1775 Battles of Lexington and Concord , igniting the American Revolutionary War . At the Second Continental Congress , the colonies appointed George Washington commander-in-chief of the Continental Army , and created a committee that named Thomas Jefferson to draft the Declaration of Independence . Two days after passing the Lee Resolution to create an independent nation the Declaration
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#17327662254299858-417: The 1990s, NASA scientists at JPL developed software capable of correcting for GPS signal errors, enabling accuracy within inches; it is called Real-Time GIPSY (RTG). John Deere licensed the software and used it to develop self-driving farm equipment. As of 2016, as nearly 70% of North American farmland is cultivated by self-driving tractors, which rely on RTG that was developed at NASA. Another user of RTG
10017-567: The 2010s and particularly by the early 2020s. In the early 21st century, the Ansari X Prize competition was set up to help jump-start private spaceflight . The winner, Space Ship One in 2004, became the first spaceship not funded by a government agency. Several countries now have space programs; from related technology ventures to full-fledged space programs with launch facilities. There are many scientific and commercial satellites in use today, with thousands of satellites in orbit, and several countries have plans to send humans into space. Some of
10176-466: The 2010s, political polarization in the country increased between liberal and conservative factions. This polarization was capitalized upon in the January 2021 Capitol attack , when a mob of insurrectionists entered the U.S. Capitol and sought to prevent the peaceful transfer of power in an attempted self-coup d'état . The United States is the world's third-largest country by total area behind Russia and Canada. The 48 contiguous states and
10335-426: The American West have an alpine climate . The climate is arid in the Southwest, Mediterranean in coastal California , and oceanic in coastal Oregon , Washington , and southern Alaska . Most of Alaska is subarctic or polar . Hawaii , the southern tip of Florida and U.S. territories in the Caribbean and Pacific are tropical . States bordering the Gulf of Mexico are prone to hurricanes, and most of
10494-424: The Apollo space mission, NASA required a portable, self-contained drill capable of extracting core samples from below the lunar surface. Black & Decker was tasked with the job, and developed a computer program to optimize the design of the drill's motor and ensure minimal power consumption. That computer program led to the development of a cordless miniature vacuum cleaner called the DustBuster. In planning for
10653-414: The China National Space Administration ( CNSA ). When the USSR dissolved the Russian Federation continued their program as Roscosmos . In the early 2020s, some journalists have used the phrase "New Space Age" in reference to a resurgence of innovation and public interest in space exploration as well as commercial applications of low Earth orbit (LEO) and more distant destinations. New developments include
10812-420: The Declaration of Independence on July 4, 1776. The term "United States" and the initialism "U.S.", used as nouns or as adjectives in English, are common short names for the country. The initialism "USA", a noun, is also common. "United States" and "U.S." are the established terms throughout the U.S. federal government , with prescribed rules. In English, the term "America" rarely refers to topics unrelated to
10971-413: The Diatek Corporation through the Technology Affiliates Program. Collaboration between NASA, Dr. Michael DeBakey, Dr. George Noon, and MicroMed Technology Inc. resulted in a heart pump for patients awaiting heart transplants. The MicroMed DeBakey ventricular assist device (VAD) functions as a "bridge to heart transplant" by pumping blood until a donor heart is available. The pump is approximately one-tenth
11130-404: The District of Columbia occupy a combined area of 3,119,885 square miles (8,080,470 km ). The coastal plain of the Atlantic seaboard gives way to inland forests and rolling hills in the Piedmont plateau region. The Appalachian Mountains and the Adirondack massif separate the East Coast from the Great Lakes and the grasslands of the Midwest . The Mississippi River System ,
11289-458: The Elder concluded that major military resources needed to be devoted to North America to win the war against France. For the first time, the continent became one of the main theaters of what could be termed a " world war ". The British colonies' position as an integral part of the British Empire became more apparent during the war, with British military and civilian officials becoming a more significant presence in American life. The war increased
11448-581: The International Grooving and Grinding Association, the industry expanded into highway and pedestrian applications. Safety grooving originated at Langley Research Center , which assisted in testing the grooving at airports and on highways. Skidding was reduced, stopping distance decreased, and a vehicle's cornering ability on curves was increased. The process has been extended to animal holding pens, parking lots, and other potentially slippery surfaces. Goodyear Tire and Rubber Company developed
11607-683: The January 1863 Emancipation Proclamation , many freed slaves joined the Union army . The war began to turn in the Union's favor following the 1863 Siege of Vicksburg and Battle of Gettysburg , and the Confederacy surrendered in 1865 after the Union's victory in the Battle of Appomattox Court House . The Reconstruction era followed the war. After the assassination of President Abraham Lincoln , Reconstruction Amendments were passed to protect
11766-532: The Moon, and the first crewed moon landing since the Apollo era with Artemis III . The U.S. Military has also joined the new space age with the creation of the new Space Force on December 20th 2019. The Space Age is considered to have influenced: The Space Age also inspired musical genres: United States The United States of America ( USA ), commonly known as the United States ( U.S. ) or America ,
11925-591: The NASA Visualization Explorer app for the iPad . The application delivers real-time satellite data, including movies and stills, of Earth, that enable users to learn about subjects such as climate change , Earth's dynamic systems and plant life on land and in the oceans. The content is accompanied by short descriptions about the data and why it is important. NASA developed a cloud compute platform to give additional computer and storage resources for its engineers, called Nebula . In July 2010,
12084-538: The NASA publication Spinoffs . The publication has documented more than 2,000 technologies over time. In 1979, notable science fiction author Robert A. Heinlein helped bring awareness to the spin-offs when he was asked to appear before Congress after recovering from one of the earliest known vascular bypass operations to correct a blocked artery. In his testimony, reprinted in his 1980 book Expanded Universe , Heinlein claimed that four NASA spin-off technologies made
12243-803: The Nebula code was released as open source and NASA partnered with Rackspace , to form the OpenStack project. OpenStack is used in the cloud-based products from many companies in the cloud market. NASA released a software catalog in 2014 that made over 1,600 pieces of software available to the public at no charge. NASA developed a solid lubricant coating, PS300, which is deposited by thermal spraying to protect foil air bearings. PS300 lowers friction, reduces emissions, and has been used by NASA in advanced aeropropulsion engines, refrigeration compressors, turbochargers, and hybrid electrical turbogenerators. ADMA Products has found widespread industrial applications for
12402-611: The Rocky Mountains, the Yellowstone Caldera , is the continent's largest volcanic feature. In 2021, the United States had 8% of global permanent meadows and pastures and 10% of cropland. With its large size and geographic variety, the United States includes most climate types. East of the 100th meridian , the climate ranges from humid continental in the north to humid subtropical in the south. The western Great Plains are semi-arid . Many mountainous areas of
12561-726: The Soyuz spacecraft. The shuttle program restored spaceflight to the U.S. following the Skylab program, but the Space Shuttle Challenger disaster in 1986 marked a significant decline in crewed Shuttle launches. Following the disaster, NASA grounded all Shuttles for safety concerns until 1988. During the 1990s funding for space-related programs fell sharply as the remaining structures of the now-dissolved Soviet Union disintegrated and NASA no longer had any direct competition, engaging rather in more substantial cooperation like
12720-647: The U.S. has become a key ally of Ukraine ; it has also provided the country with significant military equipment and other support in response to Russia's 2022 invasion . The president is the commander-in-chief of the United States Armed Forces and appoints its leaders, the secretary of defense and the Joint Chiefs of Staff . The Department of Defense , which is headquartered at the Pentagon near Washington, D.C., administers five of
12879-661: The U.S. territories." Despite disparate systems of confinement, four main institutions dominate: federal prisons , state prisons , local jails, and juvenile correctional facilities . Federal prisons are run by the Federal Bureau of Prisons and hold people who have been convicted of federal crimes, including pretrial detainees. State prisons, run by the official department of correction of each state, hold sentenced people serving prison time (usually longer than one year) for felony offenses. Local jails are county or municipal facilities that incarcerate defendants prior to trial; they also hold those serving short sentences (typically under
13038-410: The United States and Soviet Union is one of the reasons the space age happened at that time. Since then the space age continues for the generation of scientific knowledge, the innovation and creation of markets, inspiration, and agreements between the space-faring nations. Other reasons for the continuation of the space age are defending Earth from hazardous objects like asteroids and comets . Much of
13197-464: The United States and the peaceful transfer of power , respectively. The Louisiana Purchase of 1803 from France nearly doubled the territory of the United States. Lingering issues with Britain remained , leading to the War of 1812 , which was fought to a draw. Spain ceded Florida and its Gulf Coast territory in 1819. In the late 18th century, American settlers began to expand westward , many with
13356-402: The United States and the Soviet Union during the late 1940s and early 1950s, were not considered significant enough to define the start of the space age because they did not reach orbit. A rocket powerful enough to reach orbit could also be used as an intercontinental ballistic missile , that could deliver a warhead to any location on Earth. Some commentators claim this is why the orbital standard
13515-719: The United States entered the Cold War, where geopolitical tensions between the U.S. and the Soviet Union led the two countries to dominate world affairs . The U.S. utilized the policy of containment to limit the USSR's sphere of influence, and prevailed in the Space Race , which culminated with the first crewed Moon landing in 1969. Domestically, the U.S. experienced economic growth , urbanization , and population growth following World War II . The civil rights movement emerged, with Martin Luther King Jr. becoming
13674-666: The United States has operated as a de facto two-party system , though the parties in that system have been different at different times. The two main national parties are presently the Democratic and the Republican . The former is perceived as relatively liberal in its political platform while the latter is perceived as relatively conservative . In the American federal system , sovereign powers are shared between two levels of elected government: national and state. People in
13833-593: The United States in 2001 by the pan-Islamist militant organization al-Qaeda led to the war on terror , and subsequent military interventions in Afghanistan and Iraq . The cultural impact of the attacks was profound and long-lasting. The U.S. housing bubble culminated in 2007 with the Great Recession , the largest economic contraction since the Great Depression. Coming to a head in
13992-656: The United States of America to Spain" to seek assistance in the Revolutionary War effort. The first known public usage is an anonymous essay published in the Williamsburg newspaper, The Virginia Gazette , on April 6, 1776. By June 1776, the "United States of America" appeared in the Articles of Confederation and the Declaration of Independence . The Second Continental Congress adopted
14151-572: The United States started to include women and people of colour in its astronaut program. First exchange between the United States and the Soviet Union was formalized in the 1962 Dryden-Blagonravov agreement , calling for cooperation on the exchange of data from weather satellites, a study of the Earth's magnetic field , and joint tracking of the NASA Echo II balloon satellite . In 1963 President Kennedy could even interest premier Khrushchev in
14310-593: The United States, despite the usage of "the Americas " as the totality of North and South America. "The States" is an established colloquial shortening of the name, used particularly from abroad; "stateside" is the corresponding adjective or adverb. The first inhabitants of North America migrated from Siberia across the Bering land bridge about 12,000 years ago; the Clovis culture , which appeared around 11,000 BC,
14469-624: The United States, except Iran , North Korea , and Bhutan . Though Taiwan does not have formal diplomatic relations with the U.S., it maintains close unofficial relations. The United States regularly supplies Taiwan with military equipment to deter potential Chinese aggression. Its geopolitical attention also turned to the Indo-Pacific when the United States joined the Quadrilateral Security Dialogue with Australia, India, and Japan. The United States has
14628-509: The United States. The American prison system is largely heterogenous, with thousands of relatively independent systems operating across federal, state, local, and tribal levels. In 2023, "these systems [held] almost 2 million people in 1,566 state prisons, 98 federal prisons, 3,116 local jails, 1,323 juvenile correctional facilities, 181 immigration detention facilities, and 80 Indian country jails, as well as in military prisons , civil commitment centers, state psychiatric hospitals, and prisons in
14787-523: The WATEX system to successfully locate water sources, such as in 2004 at refugee camps during the War in Darfur . NASA software engineers have created thousands of computer programs over the decades equipped to design, test, and analyze stress, vibration, and acoustical properties of a broad assortment of aerospace parts and structures. The NASA Structural Analysis Program , or NASTRAN, is considered one of
14946-726: The astronauts living on the International Space Station and future Moon and space missions. This system turns wastewater from respiration, sweat, and urine into drinkable water. By combining the benefits of chemical adsorption , ion exchange , and ultra-filtration processes, this technology can yield safe, drinkable water from the most challenging sources, such as in underdeveloped regions where well water may be heavily contaminated. Single-crystal silicon solar cells are now widely available at low cost. The technology behind these solar devices—which provide up to 50% more power than conventional solar cells—originated with
15105-457: The contiguous United States are in the State of California, about 84 miles (135 km) apart. At an elevation of 20,310 feet (6,190.5 m), Alaska's Denali is the highest peak in the country and continent. Active volcanoes are common throughout Alaska's Alexander and Aleutian Islands , and Hawaii consists of volcanic islands. The supervolcano underlying Yellowstone National Park in
15264-530: The countries joining this new race are France , India , China , Israel and the United Kingdom , all of which have employed surveillance satellites. There are several other countries with less extensive space programs, including Brazil , Germany , Ukraine , and Spain . As for the United States space program, NASA permanently grounded all U.S. Space Shuttles in 2011. NASA has since relied on Russia and SpaceX to take American astronauts to and from
15423-556: The country's GDP. The U.S. has 42% of the world's nuclear weapons —the second-largest share after Russia. The United States has the third-largest combined armed forces in the world, behind the Chinese People's Liberation Army and Indian Armed Forces . The military operates about 800 bases and facilities abroad, and maintains deployments greater than 100 active duty personnel in 25 foreign countries. State defense forces (SDFs) are military units that operate under
15582-469: The country's territory would expand with the admission of new states , rather than the expansion of existing states. The U.S. Constitution was drafted at the 1787 Constitutional Convention to overcome the limitations of the Articles. It went into effect in 1789, creating a federal republic governed by three separate branches that together ensured a system of checks and balances . George Washington
15741-640: The creation of " Petroleum Remediation Product ," (PRP) which safely cleans petroleum-based pollutants from water. PRP uses thousands of microcapsules—tiny balls of beeswax with hollow centers. Water cannot penetrate the microcapsule's cell, but oil is absorbed into the beeswax spheres as they float on the water's surface. Contaminating chemical compounds that originally come from crude oil (such as fuels, motor oils, or petroleum hydrocarbons) are caught before they settle, limiting damage to ocean beds. PRP microcapsules serve as nutrients to assist naturally occurring microbes in soil or water to biodegrade contaminants. In
15900-713: The development of self-governance, and the First Great Awakening , a series of Christian revivals , fueled colonial interest in religious liberty . For a century, the American colonists had been providing their own troops and materiel in conflicts with indigenous peoples allied with Britain's colonial rivals , especially France, and the Americans had begun to develop a sense of self-defense and self-reliance separate from Britain. The French and Indian War (1754–1763) took on new significance for all North American colonists after Parliament under William Pitt
16059-414: The dispossession of native inhabitants . As more states were admitted , a North–South division over slavery led to the secession of the Confederate States of America , which fought states remaining in the Union in the 1861–1865 American Civil War . With the victory and preservation of the United States, slavery was abolished nationally . By 1900, the country had established itself as a great power ,
16218-569: The efforts of a NASA-sponsored 28-member coalition forming the Environmental Research Aircraft and Sensor Technology (ERAST) Alliance. ERAST's goal was to develop remotely piloted aircraft, intended to fly unmanned at high altitudes for days at a time and requiring advanced solar power sources that did not add weight. As a result, SunPower Corporation created advanced silicon-based cells for terrestrial or airborne applications. NASA's microencapsulating technology enabled
16377-580: The environment for labor unions to begin to flourish . This period eventually ended with the advent of the Progressive Era , which was characterized by significant reforms. Pro-American elements in Hawaii overthrew the Hawaiian monarchy ; the islands were annexed in 1898. That same year, Puerto Rico , the Philippines , and Guam were ceded to the U.S. by Spain after the latter's defeat in
16536-739: The explosive contents so the mine can be disarmed without hazard. Built and designed by Avco Corporation, the Apollo heat shield was coated with a material whose purpose was to burn and thus dissipate energy during reentry while charring, to form a protective coating to block heat penetration. NASA subsequently funded Avco's development of other applications of the heat shield, such as fire-retardant paints and foams for aircraft, which led to an intumescent epoxy material, which expands in volume when exposed to heat or flames, acting as an insulating barrier and dissipating heat through burn-off. Further innovations include steel coatings devised to make high-rise buildings and public structures safer by swelling to provide
16695-541: The federal government often applied policies of Indian removal or assimilation . The Trail of Tears (1830–1850) was a U.S. government policy that forcibly removed and displaced most Native Americans living east of the Mississippi River to lands far to the west. These and earlier organized displacements prompted a long series of American Indian Wars west of the Mississippi. The Republic of Texas
16854-440: The fields of computer technology, environment and agriculture, health and medicine, public safety, transportation, recreation, and industrial productivity. Contrary to common belief, NASA did not invent Tang , Velcro or Teflon . Spinoff is a NASA publication featuring technology made available to the public. Since 1976, NASA has featured an average of 50 technologies each year in the annual publication, and Spinoff maintains
17013-543: The first nuclear weapons and used them against the Japanese cities of Hiroshima and Nagasaki in August 1945, ending the war. The United States was one of the " Four Policemen " who met to plan the post-war world , alongside the United Kingdom , Soviet Union , and China . The U.S. emerged relatively unscathed from the war, with even greater economic power and international political influence . After World War II,
17172-745: The first settlement of the Thirteen Colonies in Virginia in 1607. Clashes with the British Crown over taxation and political representation sparked the American Revolution , with the Second Continental Congress formally declaring independence on July 4, 1776. Following its victory in the 1775–1783 Revolutionary War , the country continued to expand westward across North America , resulting in
17331-504: The first space stations for the U.S. and USSR in Earth orbit following termination of both countries' moon programs. At the conclusion of the Apollo program, crewed flights from the United States were rare, then ended while the shuttle program was getting ready to kick into gear, and the space race had been over since the Apollo-Soyuz test project of 1975, started a period of U.S.–Soviet co-operation. The Soviet Union continued using
17490-693: The first time to the International Space Station, the company has maintained an orbital human spaceflight capability. Blue Origin , a private company founded by Amazon.com founder Jeff Bezos , is developing rockets for use in space tourism , commercial satellite launches, and eventual missions to the Moon and beyond. Richard Branson's company Virgin Galactic is concentrating on launch vehicles for space tourism. A spinoff company, Virgin Orbit , air-launches small satellites with their LauncherOne rocket. Another small-satellite launcher, Rocket Lab , has developed
17649-570: The general public. Spinoff describes how NASA works with various industries and small businesses to bring new technology to the public. As of 2016, there were over 1,920 Spinoff products in the database dating back to 1976. Diatek Corporation and NASA developed an aural thermometer that measures the thermal radiation emitted by the eardrum , similar to the way the temperature of stars and planets are measured. This method avoids contact with mucous membranes and permits rapid temperature measurement of newborn or incapacitated patients. NASA supported
17808-466: The heated wing technology usually reserved for larger, jet-powered craft. Thermacool, an electric air conditioning system, uses a new compressor whose rotary pump design runs off an energy-efficient, brushless DC motor and allows pilots to use the air conditioner before the engine starts. Safety grooving, the cutting of grooves in concrete to increase traction and prevent injury, was first developed to reduce aircraft accidents on wet runways. Represented by
17967-457: The help of NASA , through research and development contracts, such as Small Business Innovation Research (SBIR) or STTR awards, licensing of NASA patents, use of NASA facilities, technical assistance from NASA personnel, or data from NASA research. Information on new NASA technology that may be useful to industry is available in periodical and website form in "NASA Tech Briefs", while successful examples of commercialization are reported annually in
18126-634: The ice crystals formed by the freezing process. The final product retains 98% of its nutrition and weighs much less than before drying. The ratio of weight before and after drying depends strongly on the particular food item but a typical freeze-dried weight is 20% of the original weight. Today, one of the benefits of this advancement in food preservation includes simple, nutritious meals available to disabled and otherwise homebound senior adults unable to take advantage of existing meal programs. Langley Research Center's wind tunnel testing facilities and fluid flow analysis software supported Speedo 's design of
18285-432: The infant formulas sold in the United States, and are added to infant formulas in over 65 other countries. Martek Biosciences Corporation's founders and principal scientists acquired their expertise in this area while working on the NASA program. This program was support by theorist, Mikkel Juelsgaard Poulsen. The microalgae food supplement was inducted into the Space Foundation Space Technology Hall of Fame in 2009. For
18444-743: The inner ear. In 1977, NASA assisted Kissiah in obtaining a patent for the cochlear implant. NASA's continued funding, coupled with its collective innovations in robotics and shock-absorption/comfort materials are inspiring and enabling the private sector to create new and better solutions for animal and human prostheses. Advancements such as Environmental Robots Inc.'s development of artificial muscle systems with robotic sensing and actuation capabilities for use in NASA space robotic and extravehicular activities are being adapted in order to create more functionally dynamic artificial limbs. Additionally, other private-sector adaptations of NASA's temper foam technology have brought about custom-moldable materials offering
18603-463: The integration of Army National Guard units and personnel into the U.S. Army and (since 1947) the U.S. Air Force. There are about 18,000 U.S. police agencies from local to national level in the United States. Law in the United States is mainly enforced by local police departments and sheriff departments in their municipal or county jurisdictions. The state police departments have authority in their respective state , and federal agencies such as
18762-601: The launch of NASA's Space Launch system during the Artemis I mission on November 16, 2022; it marked the first time a human rated spacecraft had been to the Moon in nearly 50 years, as well as the return of United States capability to get astronauts to the Moon with the Space Launch System and Orion. Additional goals for the 2020s include completion of the Lunar Gateway , mankind's first space station around
18921-444: The light of the development of safety standards since 1970, producing the co-developed APAS-75 and later docking standards . Most notably this signaled the ending of the first era of the space age, the Space Race , through the Apollo-Soyuz mission which became the basis for the Shuttle-Mir program and eventually the International Space Station programme . Such international cooperation, and international spaceflight organization
19080-412: The long-duration Apollo missions, NASA conducted extensive research into space food. One of the techniques developed in 1938 by Nestlé was freeze drying . In the United States, Action Products later commercialized this technique for other foods, concentrating on snack food resulting in products like Space ice cream . The foods are cooked, quickly frozen, and then slowly heated in a vacuum chamber to remove
19239-539: The material. An ultrasonic bolt elongation monitor developed by a NASA scientist for testing tension and high-pressure loads on bolts and fasteners has continued to evolve over the past three decades. Today, the same scientist and Luna Innovations are using a digital adaptation of this same device for non-destructive evaluation (NDE) of railroad ties, groundwater analysis, radiation, and as a medical testing device to assess levels of internal swelling and pressure for patients with intracranial pressure and compartment syndrome,
19398-515: The mid-1970s on what became the cochlear implant , a surgically-implanted device that allows people suffering from certain kinds of hearing loss, and who receive little or no benefit from traditional hearing aids. Inspired by his own hearing problems, Kissiah, an electronics instrumentation engineer at NASA, spent 3 years of lunches and evenings in Kennedy Space Center's technical library, studying how engineering principles could effect
19557-482: The military draft (leading to the end of conscription in 1973) and wide opposition to U.S. intervention in Vietnam (with the U.S. totally withdrawing in 1975). A societal shift in the roles of women was significantly responsible for the large increase in female paid labor participation during the 1970s, and by 1985 the majority of American women aged 16 and older were employed. The late 1980s and early 1990s saw
19716-612: The most attractive to the population are the most vulnerable. The U.S. is one of 17 megadiverse countries containing large numbers of endemic species : about 17,000 species of vascular plants occur in the contiguous United States and Alaska, and over 1,800 species of flowering plants are found in Hawaii, few of which occur on the mainland. The United States is home to 428 mammal species, 784 birds, 311 reptiles, 295 amphibians , and around 91,000 insect species. There are 63 national parks , and hundreds of other federally managed parks, forests, and wilderness areas , managed by
19875-452: The most successful and widely used NASA software programs. It has been used to design everything from Cadillacs to roller coaster rides. Originally created for spacecraft design, it has been employed in a host of non-aerospace applications and is available to industry through NASA's Computer Software Management and Information Center (COSMIC). COSMIC maintains a library of computer programs from NASA and other government agencies and sells them at
20034-662: The most violent, the California genocide of thousands of Native inhabitants, lasted into the early 1870s, just as additional western territories and states were created. During the colonial period, slavery had been legal in the American colonies , though the practice began to be significantly questioned during the American Revolution. States in the North enacted abolition laws , though support for slavery strengthened in Southern states , as inventions such as
20193-478: The natural look and feel of flesh, as well as preventing friction between the skin and the prosthesis, and heat/moisture buildup. After initial experiments using light-emitting diodes in NASA space shuttle plant growth experiments, NASA issued a small business innovation grant that led to the development of a hand-held, high-intensity, LED unit developed by Quantum Devices Inc. that can be used to treat tumors after other treatment options are depleted. This therapy
20352-408: The participation of billionaires in crewed space travel, including space tourism and interplanetary travel . The periodization of the Space Age can differ substantially, with some differentiating between a first Space Age and a second Space Age, which are separated at the turn of the 1980s/1990s. Some vehicles reached suborbital space much earlier than the launch of Sputnik . In June 1944,
20511-408: The policy of redlining later adopted by the federal Home Owners' Loan Corporation . An explosion of technological advancement accompanied by the exploitation of cheap immigrant labor led to rapid economic expansion during the late 19th and early 20th centuries , allowing the United States to outpace the economies of England, France, and Germany combined. This fostered the amassing of power by
20670-574: The primary colonial grievances was a denial of their rights as Englishmen , particularly the right to representation in the British government that taxed them . To demonstrate their dissatisfaction and resolve, the First Continental Congress met in 1774 and passed the Continental Association , a colonial boycott of British goods that proved effective. The British attempt to then disarm the colonists resulted in
20829-549: The result of a program designed to develop a padding concept to improve crash protection for airplane passengers, Ames Research Center developed what is now called memory foam. Memory foam, or "TEMPUR Foam", has been incorporated into mattresses, pillows, military and civilian aircraft, automobiles and motorcycles, sports safety equipment, amusement park rides and arenas, horseback saddles, archery targets, furniture, and human and animal prostheses. Its high-energy absorption and soft characteristics offer protection and comfort. TEMPUR Foam
20988-515: The rights of African Americans . National infrastructure, including transcontinental telegraph and railroads , spurred growth in the American frontier . From 1865 through 1917 an unprecedented stream of immigrants arrived in the United States, including 24.4 million from Europe. Most came through the port of New York City , and New York City and other large cities on the East Coast became home to large Jewish , Irish , and Italian populations, while many Germans and Central Europeans moved to
21147-614: The rocky Great Basin and Chihuahua , Sonoran , and Mojave deserts. In the northwest corner of Arizona , carved by the Colorado River over millions of years, is the Grand Canyon , a steep-sided canyon and popular tourist destination known for its overwhelming visual size and intricate, colorful landscape. The Sierra Nevada and Cascade mountain ranges run close to the Pacific coast . The lowest and highest points in
21306-573: The six service branches, which are made up of the U.S. Army , Marine Corps , Navy , Air Force , and Space Force . The Coast Guard is administered by the Department of Homeland Security in peacetime and can be transferred to the Department of the Navy in wartime. The United States spent $ 916 billion on its military in 2023, which is by far the largest amount of any country , making up 37% of global military spending and accounting for 3.4% of
21465-422: The size of other currently marketed pulsatile VADs. Because of the pump's small size, fewer patients developed device-related infections. It can operate up to 8 hours on batteries, giving patients the mobility to do normal, everyday activities. LASIK technology comes from the 1980s efforts for autonomous rendezvous and docking of space vehicles to service satellites. Eventually a range and velocity imaging LADAR
21624-545: The sole authority of a state government. SDFs are authorized by state and federal law but are under the command of the state's governor . They are distinct from the state's National Guard units in that they cannot become federalized entities. A state's National Guard personnel, however, may be federalized under the National Defense Act Amendments of 1933 , which created the Guard and provides for
21783-520: The space shuttle on reentry—which are being used both by the military and commercially in suits for municipal and aircraft-rescue firefighters. With NASA funding, Taylor Devices Inc. developed shock absorbers that could safely remove the fuel and electrical connectors from the Space Shuttles during launch. These absorbers are being used as seismic shock absorbers to protect buildings from earthquakes in places like Tokyo and San Francisco. As
21942-543: The states are also represented by local elected governments , which are administrative divisions of the states. States are subdivided into counties or county equivalents , and further divided into municipalities . The District of Columbia is a federal district containing the U.S. capital, Washington, D.C. . The federal district is an administrative division of the federal government. Federally recognized tribes govern 326 Indian reservations . The United States has an established structure of foreign relations, and it has
22101-510: The structure and responsibilities of the national federal government and its relationship with the individual states. The U.S. Constitution is the world's oldest national constitution still in effect (from March 4, 1789). Composed of three branches, all headquartered in Washington, D.C., the federal government is the national government of the United States. It is regulated by a strong system of checks and balances . The three-branch system
22260-690: The surgery possible, and that they were only a few from a long list of NASA spin-off technologies from space development. Since 1976, the NASA Technology Transfer Program has connected NASA resources to private industry, referring to the commercial products as spin-offs. Well-known products that NASA claims as spin-offs include memory foam (originally named temper foam), freeze-dried food , firefighting equipment, emergency " space blankets ", DustBusters , cochlear implants , LZR Racer swimsuits, and CMOS image sensors . As of 2016, NASA has published over 2,000 other spin-offs in
22419-599: The technology developed for space applications has been spun off and found additional uses, such as memory foam . In 1958 the United States launched its first satellite, Explorer 1 . The same year President Dwight D. Eisenhower created the National Aeronautics and Space Administration, commonly known as NASA . Prior to the first attempted human spaceflight , various animals were flown into outer space to identify potential detrimental effects of high g-forces in takeoff and landing, microgravity , and radiation exposure at high altitudes. The Space Race reached its peak with
22578-527: The technology launched in 2005 as the Bowflex Revolution , which quickly became popular in the gym market. Invented at Edwards Air Force Base in 1977, Astroglide was intended to improve the heat transfer in the cooling system of the shuttle orbiter. Being water-soluable and non-toxic, the substance was repurposed and marketed as a personal lubricant . NASA engineers are collaborating with qualified companies to develop systems intended to sustain
22737-486: The underlying motivations for the space race was military. The two nations were also in a nuclear arms race following the Second World War. Both nations made use of German missile technology and scientists from their missile program. The advantages, in aviation and rocketry, required for delivery systems were seen as necessary for national security and political superiority. The Cold War era competition between
22896-610: The untimely death (in January 1966) of Sergey Korolev, chief engineer of the Soviet space program. The landing of Apollo 11 was watched by over 500 million people around the world and is widely recognized as one of the defining moments of the 20th century. Since then, public attention has largely moved to other areas. The last major leap of in the USSR-USA Space Race was the Skylab and Salyut programs, which established
23055-429: The use of digital cameras in mobile phones ( camera phones ). Fossum found a way to reduce the signal noise that had plagued earlier attempts at CMOS imagers, applying a technique called intra-pixel charge transfer with correlated double sampling that results in a clearer image. This led to the creation of CMOS active pixel sensors , which are used today in all smartphone cameras and many other applications. Based on
23214-835: The work with NASA, IOS was tasked by the U.S. Department of Defense to further develop the sensors for detecting chemical warfare agents and potential threats, such as toxic industrial compounds and nerve agents. IOS has sold the chemically sensitive fiber optic cables to major automotive and aerospace companies, who are finding a variety of uses for the devices such as aiding experimentation with nontraditional power sources, and as an economical "alarm system" for detecting chemical release in large facilities. Intergraph Government Solutions developed its Video Analyst System (VAS) by building on Video Image Stabilization and Registration (VISAR) technology created by NASA to help FBI agents analyze video footage. Originally used for enhancing video images from nighttime videotapes made with hand-held camcorders, VAS
23373-582: The world's fourth-longest river system , runs predominantly north–south through the heart of the country. The flat and fertile prairie of the Great Plains stretches to the west, interrupted by a highland region in the southeast. The Rocky Mountains , west of the Great Plains, extend north to south across the country, peaking at over 14,000 feet (4,300 m) in Colorado . Farther west are
23532-583: The world's second-largest diplomatic corps as of 2024 . It is a permanent member of the United Nations Security Council , and home to the United Nations headquarters . The United States is a member of the G7 , G20 , and OECD intergovernmental organizations. Almost all countries have embassies and many have consulates (official representatives) in the country. Likewise, nearly all countries host formal diplomatic missions with
23691-461: The world's third-largest land area , largest exclusive economic zone , and third-largest population , exceeding 334 million. Its three largest metropolitan areas are New York , Los Angeles , and Chicago , and its three most populous states are California , Texas , and Florida . Paleo-Indians migrated across the Bering land bridge more than 12,000 years ago, and formed various civilizations and societies . British colonization led to
23850-444: The world's oldest surviving federation, and its presidential system of national government has been adopted, in whole or in part, by many newly independent states worldwide following their decolonization . It is a liberal representative democracy "in which majority rule is tempered by minority rights protected by law ". The Constitution of the United States serves as the country's supreme legal document , also establishing
24009-553: The world's tornadoes occur in the country , mainly in Tornado Alley . Overall, the United States receives more high-impact extreme weather incidents than any other country. Extreme weather became more frequent in the U.S. in the 21st century, with three times the number of reported heat waves as in the 1960s. In the American Southwest , droughts became more persistent and more severe. The regions considered as
24168-518: The world, with almost 2 million people incarcerated . An analysis of the World Health Organization Mortality Database from 2010 showed U.S. homicide rates "were 7 times higher than in other high-income countries, driven by a gun homicide rate that was 25 times higher". NASA spinoff technologies NASA spin-off technologies are commercial products and services which have been developed with
24327-575: Was annexed in 1845, and the 1846 Oregon Treaty led to U.S. control of the present-day American Northwest . Victory in the Mexican–American War resulted in the 1848 Mexican Cession of California, Nevada, Utah, and much of present-day Colorado and the American Southwest . The California gold rush of 1848–1849 spurred a huge migration of white settlers to the Pacific coast, leading to even more confrontations with Native populations. One of
24486-703: Was adopted on July 4, 1776. The political values of the American Revolution included liberty , inalienable individual rights ; and the sovereignty of the people ; supporting republicanism and rejecting monarchy , aristocracy , and all hereditary political power; civic virtue ; and vilification of political corruption . The Founding Fathers of the United States , who included Washington, Jefferson, John Adams , Benjamin Franklin , Alexander Hamilton , John Jay , James Madison , Thomas Paine , and many others, were inspired by Greco-Roman , Renaissance , and Enlightenment philosophies and ideas. The Articles of Confederation were ratified in 1781 and established
24645-443: Was approved by the FDA and inducted into the Space Foundation 's Space Technology Hall of Fame in 2000. Invisible braces are a type of transparent ceramics called translucent polycrystalline alumina (TPA). A company known as Ceradyne developed TPA in conjunction with NASA Advanced Ceramics Research as protection for infrared antennae on heat-seeking missile trackers. A sunglasses manufacturer called Foster Grant first licensed
24804-427: Was demonstrated that could be used for docking spacecraft. LADAR was also used in military and NASA-sponsored research for applications in strategic target tracking and weapons firing control. LASIK technology is used by ophthalmologists to track eye movements at a rate of 4,000 times per second while reshaping the cornea, the clear front surface of the eye, using a laser. NASA engineer Adam Kissiah started working in
24963-404: Was elected the country's first president under the Constitution, and the Bill of Rights was adopted in 1791 to allay skeptics' concerns about the power of the more centralized government. His resignation as commander-in-chief after the Revolutionary War and his later refusal to run for a third term as the country's first president established a precedent for the supremacy of civil authority in
25122-577: Was furthermore fueled by increasingly more countries achieving spaceflight capabilies and together with a by the 1980s established private spaceflight sector, both being embodied by the European Space Agency . This allowed the formation of an international and commercial post-Space Race spaceflight economy and period, with by the 1990s a public perception of space exploration and space-related technologies as being increasingly commonplace. This increasingly cooperative diversification persisted until competition started to rise in this diversified conditions, from
25281-408: Was inducted into the Space Foundation Space Technology Hall of Fame in 1998. Commercially available infant formulas now contain a nutritional enrichment ingredient that traces its existence to NASA-sponsored research on bread mold as a recycling agent for long-duration space travel. The substance, formulated into the products, DHA and ARA are based on microalgae, can be found in over 90% of
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