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139-488: Owing to the tilt of Earth's rotation relative to the Sun and the ecliptic plane , summer is from December to February (inclusive) and winter is from June to August (inclusive). September 22 or 23 is the vernal equinox and March 20 or 21 is the autumnal equinox. The South Pole is in the centre of the southern hemispherical region. Southern Hemisphere climates tend to be slightly milder than those at similar latitudes in

278-589: A Human Development Index (HDI) of 0.946, the tenth-highest in the world as of the 2024 report. New Zealand is also well developed, with a nominal GDP per capita of US$ 48,072 and an HDI of 0.939, putting it at number 16 in the world in 2024. The least developed nations in the Southern Hemisphere cluster in Africa and Oceania, with Mozambique and Burundi at the lowest ends of the HDI, at 0.461 (number 183 in

417-531: A special autonomous status ( otonomi khusus ) from the central government. Aceh, a conservative Islamic territory , has the right to create some aspects of an independent legal system implementing sharia . Yogyakarta is the only pre-colonial monarchy legally recognised within Indonesia, with the positions of governor and vice governor being prioritised for the reigning Sultan of Yogyakarta and Duke of Pakualaman , respectively. The six Papuan provinces are

556-462: A dividing line ( Wallace Line ) between the distribution of Indonesia's Asian and Australasian species. It runs roughly north–south along the edge of the Sunda Shelf, between Kalimantan and Sulawesi, and along the deep Lombok Strait , between Lombok and Bali. Flora and fauna on the west of the line are generally Asian, while east from Lombok is increasingly Australian until the tipping point at

695-602: A freely moving body follows an apparent path that deviates from the one it would follow in a fixed frame of reference. Because of the Coriolis effect , falling bodies veer slightly eastward from the vertical plumb line below their point of release, and projectiles veer right in the Northern Hemisphere (and left in the Southern ) from the direction in which they are shot. The Coriolis effect is mainly observable at

834-449: A greater angle than usual, taking about 10 seconds longer to do so. Conversely, it is about 10 seconds shorter near aphelion . It is about 20 seconds longer near a solstice when the projection of the Sun's apparent motion along the ecliptic onto the celestial equator causes the Sun to move through a greater angle than usual. Conversely, near an equinox the projection onto the equator

973-564: A height of 158.5 m departed by 27.4 mm from the vertical compared with a calculated value of 28.1 mm. The most celebrated test of Earth's rotation is the Foucault pendulum first built by physicist Léon Foucault in 1851, which consisted of a lead-filled brass sphere suspended 67 m from the top of the Panthéon in Paris. Because of Earth's rotation under the swinging pendulum,

1112-720: A legislature ( DPRD Kabupaten/Kota ). The third level are the districts ( kecamatan , distrik in Papua , or kapanewon and kemantren in Yogyakarta ), and the fourth are the villages (either desa , kelurahan , kampung , nagari in West Sumatra , or gampong in Aceh ). The village is the lowest level of government administration. It is divided into several community groups ( rukun warga , RW), which are further divided into neighbourhood groups ( rukun tetangga , RT). In Java,

1251-487: A longer term target to further increase the coverage of its marine protected areas to 10% of its territorial waters, or 31 million hectares. Indonesia is a republic with a presidential system. Following the fall of the New Order in 1998, political and governmental structures have undergone sweeping reforms, with four constitutional amendments revamping the executive, legislative and judicial branches. Chief among them

1390-859: A meteorological scale, where it is responsible for the opposite directions of cyclone rotation in the Northern and Southern hemispheres (anticlockwise and clockwise , respectively). Hooke, following a suggestion from Newton in 1679, tried unsuccessfully to verify the predicted eastward deviation of a body dropped from a height of 8.2 meters , but definitive results were obtained later, in the late 18th and early 19th centuries, by Giovanni Battista Guglielmini in Bologna , Johann Friedrich Benzenberg in Hamburg and Ferdinand Reich in Freiberg , using taller towers and carefully released weights. A ball dropped from

1529-551: A point on Earth can be approximated by multiplying the speed at the equator by the cosine of the latitude. For example, the Kennedy Space Center is located at latitude 28.59° N, which yields a speed of: cos(28.59°) × 1,674.4 km/h = 1,470.2 km/h. Latitude is a placement consideration for spaceports . The peak of the Cayambe volcano is the point of Earth 's surface farthest from its axis; thus, it rotates

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1668-545: A press bureau in the Netherlands, Indonesisch Pers-bureau . Fossilised remains of Homo erectus , popularly known as the " Java Man ", suggest the Indonesian archipelago was inhabited two million to 500,000 years ago. Homo sapiens reached the region around 43,000 BCE. Austronesian peoples , who form the majority of the modern population, migrated to Southeast Asia from what is now Taiwan. They arrived in

1807-478: A range of sea and coastal ecosystems, including beaches , dunes, estuaries, mangroves, coral reefs, seagrass beds, coastal mudflats, tidal flats, algal beds, and small island ecosystems. Indonesia is one of the Coral Triangle countries with the world's most enormous diversity of coral reef fish , with more than 1,650 species in eastern Indonesia only. British naturalist Alfred Russel Wallace described

1946-409: A shorter day, meaning Earth was turning faster throughout the past. Around every 25–30 years Earth's rotation slows temporarily by a few milliseconds per day, usually lasting around five years. 2017 was the fourth consecutive year that Earth's rotation has slowed. The cause of this variability has not yet been determined. Earth's original rotation was a vestige of the original angular momentum of

2085-520: A wealth of Asian fauna. Large species such as the Sumatran tiger , rhinoceros, orangutan, Asian elephant , and leopard were once abundant as far east as Bali, but numbers and distribution have dwindled drastically. Having been long separated from the continental landmasses, Sulawesi, Nusa Tenggara, and Maluku have developed their unique flora and fauna. Papua was part of the Australian landmass and

2224-469: Is 86 164.090 530 832 88  seconds of mean solar time (UT1) (23 56 4.090 530 832 88 , 0.997 269 566 329 08  mean solar days ). Thus, the sidereal day is shorter than the stellar day by about 8.4 ms . Both the stellar day and the sidereal day are shorter than the mean solar day by about 3 minutes 56 seconds . This is a result of the Earth turning 1 additional rotation, relative to

2363-569: Is US$ 15,835, while nominal per capita GDP is US$ 5,108. Services are the economy's largest sector and account for 43.4% of GDP (2018), followed by industry (39.7%) and agriculture (12.8%). Since 2009, it has employed more people than other sectors, accounting for 47.7% of the total labour force, followed by agriculture (30.2%) and industry (21.9%). Over time, the structure of the economy has changed considerably. Historically, it has been weighted heavily towards agriculture, reflecting both its stage of economic development and government policies in

2502-516: Is a country in Southeast Asia and Oceania , between the Indian and Pacific oceans. It consists of over 17,000 islands , including Sumatra , Java , Sulawesi , and parts of Borneo and New Guinea . Indonesia is the world's largest archipelagic state and the 14th-largest country by area , at 1,904,569 square kilometres (735,358 square miles). With over 280 million people, Indonesia is

2641-649: Is a founding member of the Association of Southeast Asian Nations ( ASEAN ) and the East Asia Summit . In common with most of the Muslim world , Indonesia does not have diplomatic relations with Israel and has actively supported Palestine . However, observers have pointed out that Indonesia has ties with Israel, albeit discreetly. Indonesia has been a member of the United Nations since 1950 and

2780-404: Is believed to have caused a global volcanic winter and cooling of the climate and subsequently led to a genetic bottleneck in human evolution, though this is still in debate. The 1815 eruption of Mount Tambora and the 1883 eruption of Krakatoa were among the largest in recorded history. The former caused 92,000 deaths and created an umbrella of volcanic ash that spread and blanketed parts of

2919-536: Is elected for a five-year term, as are the party-aligned members of the DPR and the non-partisan DPD. Beginning with the 2015 local elections , elections for governors and mayors have occurred on the same date. In 2014, the Constitutional Court ruled that legislative and presidential elections would be held simultaneously, starting in 2019. Indonesia has several levels of subdivisions. The first level are

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3058-403: Is generally below average in both regional and global context. Indonesia has one of the world's fastest deforestation rates. In 2020, forests covered approximately 49.1% of the country's land area, down from 87% in 1950. Since the 1970s, log production, various plantations and agriculture have been responsible for much of the deforestation in Indonesia . Most recently, it has been driven by

3197-754: Is highly unstable, making it a site of numerous volcanoes and frequent earthquakes. It lies on the Pacific Ring of Fire , where the Indo-Australian Plate and the Pacific Plate are pushed under the Eurasian Plate , where they melt at about 100 kilometres (62 miles) deep. A string of volcanoes runs through Sumatra, Java , Bali and Nusa Tenggara , and then to the Banda Islands of Maluku to northeastern Sulawesi . Of

3336-495: Is home to a unique fauna and flora closely related to that of Australia, including over 600 bird species. Indonesia is second only to Australia in terms of total endemic species, with 36% of its 1,531 species of bird and 39% of its 515 species of mammal being endemic. Indonesia harbours 83% of Southeast Asia's old-growth forest , and the highest amount of forest carbon in the region. Tropical seas surround Indonesia's 80,000 kilometres (50,000 miles) of coastline. The country has

3475-639: Is known as the equation of time . Earth's rotation period relative to the International Celestial Reference Frame , called its stellar day by the International Earth Rotation and Reference Systems Service (IERS), is 86 164.098 903 691 seconds of mean solar time (UT1) (23 56 4.098 903 691 , 0.997 269 663 237 16  mean solar days ). Earth's rotation period relative to the precessing mean vernal equinox , named sidereal day ,

3614-699: Is located in the Southern Hemisphere, and it is deemed by the International Hydrographic Organization as being wholly within the South Pacific Ocean, rather than the North Pacific. More than 850 million people live in the Southern Hemisphere, representing around 10–12% of the total global human population. Of those 850 million people, more than 203 million live in Brazil , the largest country by land area in

3753-482: Is mostly concentrated on/around the islands of Bali , Mauritius , and Fiji . The oldest continuously inhabited city in the Southern Hemisphere is Bogor , in western Java , which was founded in 669 . Ancient texts from the Hindu kingdoms prevalent in the area definitively record 669 CE as the year when Bogor was founded. However, some evidence shows that Zanzibar , an ancient port with around 200,000 inhabitants off

3892-646: Is now also planted in Southern Africa and Latin America for pulp production, and increasingly, biofuel uses. One of the most notable animals to be found almost exclusively in the Southern Hemisphere is the penguin . A species is found around Isabela Island on the Galápagos archipelago in the Pacific Ocean , which straddles the equator. However, most of Isabela and the rest of the archipelago

4031-528: Is primarily due to free core nutation and the Chandler wobble . Over millions of years, Earth's rotation has been slowed significantly by tidal acceleration through gravitational interactions with the Moon. Thus angular momentum is slowly transferred to the Moon at a rate proportional to r − 6 {\displaystyle r^{-6}} , where r {\displaystyle r}

4170-492: Is rotating once around its axis requires that Earth rotate slightly more than once relative to the fixed stars before the mean Sun can pass overhead again, even though it rotates only once (360°) relative to the mean Sun. Multiplying the value in rad/s by Earth's equatorial radius of 6,378,137 m ( WGS84 ellipsoid) (factors of 2π radians needed by both cancel) yields an equatorial speed of 465.10 metres per second (1,674.4 km/h). Some sources state that Earth's equatorial speed

4309-430: Is shorter by about 20 seconds . Currently, the perihelion and solstice effects combine to lengthen the true solar day near 22 December by 30 mean solar seconds, but the solstice effect is partially cancelled by the aphelion effect near 19 June when it is only 13 seconds longer. The effects of the equinoxes shorten it near 26 March and 16 September by 18 seconds and 21 seconds , respectively. The average of

Southern Hemisphere - Misplaced Pages Continue

4448-501: Is slightly less, or 1,669.8 km/h . This is obtained by dividing Earth's equatorial circumference by 24 hours . However, the use of the solar day is incorrect; it must be the sidereal day , so the corresponding time unit must be a sidereal hour. This is confirmed by multiplying by the number of sidereal days in one mean solar day, 1.002 737 909 350 795 , which yields the equatorial speed in mean solar hours given above of 1,674.4 km/h. The tangential speed of Earth's rotation at

4587-504: Is slowing slightly with time; thus, a day was shorter in the past. This is due to the tidal effects the Moon has on Earth's rotation. Atomic clocks show that the modern day is longer by about 1.7 milliseconds than a century ago, slowly increasing the rate at which UTC is adjusted by leap seconds . Analysis of historical astronomical records shows a slowing trend; the length of a day increased by about 2.3 milliseconds per century since

4726-563: Is some policy recognition of OECMs but no national mechanism for reporting them. There are 55 national parks in Indonesia, of which 9 are predominantly marine . Of these 6 are World Heritage Sites , such as the Tropical Rainforest Heritage of Sumatra that includes three parks. Seven national parks are part of the World Network of Biosphere Reserves and 5 are wetlands of international importance under

4865-555: Is the delegation of power and authority to various regional entities while remaining a unitary state . The President of Indonesia is the head of state and head of government , commander-in-chief of the Indonesian National Armed Forces ( Tentara Nasional Indonesia , TNI), and the director of domestic governance, policy-making, and foreign affairs. The president may serve a maximum of two consecutive five-year terms. The highest representative body at

5004-406: Is the orbital radius of the Moon. This process has gradually increased the length of the day to its current value, and resulted in the Moon being tidally locked with Earth. This gradual rotational deceleration is empirically documented by estimates of day lengths obtained from observations of tidal rhythmites and stromatolites ; a compilation of these measurements found that the length of

5143-461: Is thought to be due to various factors, including the complex motion of its molten core, oceans, and atmosphere, the effect of celestial bodies such as the Moon, and possibly climate change, which is causing the ice at Earth's poles to melt. The masses of ice account for the Earth's shape being that of an oblate spheroid , bulging around the equator. When these masses are reduced, the poles rebound from

5282-406: Is thus affected by changes in the eccentricity and inclination of Earth's orbit. Both vary over thousands of years, so the annual variation of the true solar day also varies. Generally, it is longer than the mean solar day during two periods of the year and shorter during another two. The true solar day tends to be longer near perihelion when the Sun apparently moves along the ecliptic through

5421-485: The 2004 Indian Ocean earthquake , have caused the length of a day to shorten by 3 microseconds by reducing Earth's moment of inertia . Post-glacial rebound , ongoing since the last ice age , is also changing the distribution of Earth's mass, thus affecting the moment of inertia of Earth and, by the conservation of angular momentum , Earth's rotation period. The length of the day can also be influenced by man-made structures. For example, NASA scientists calculated that

5560-426: The 2006 Yogyakarta earthquake . Indonesia's size, tropical climate, and archipelagic geography support one of the world's highest levels of biodiversity , and it is among the 17 megadiverse countries identified by Conservation International . Its flora and fauna are a mixture of Asian and Australasian species. The Sunda Shelf islands (Sumatra, Java, Borneo, and Bali) were once linked to mainland Asia and have

5699-434: The 8th century BCE . Scientists reported that in 2020 Earth had started spinning faster, after consistently spinning slower than 86,400 seconds per day in the decades before. On June 29, 2022, Earth's spin was completed in 1.59 milliseconds under 24 hours, setting a new record. Because of that trend, engineers worldwide are discussing a 'negative leap second' and other possible timekeeping measures. This increase in speed

Southern Hemisphere - Misplaced Pages Continue

5838-769: The Age of Discovery , the Southern Hemisphere was largely cut off from the cultural constructs of the Western and Eastern worlds . Some view both the West and the East as being Northern Hemisphere-centric concepts. The most widespread religions in the modern Southern Hemisphere are Christianity , prevalent in South America, Africa, Oceania, and East Timor , followed by Islam in East Africa and Indonesia , and Hinduism , which

5977-639: The Army (TNI–AD), Navy (TNI–AL, which includes Marine Corps ), and Air Force (TNI–AU). The army has about 400,000 active-duty personnel. Defence spending in the national budget was 0.7% of gross domestic product (GDP) in 2018, with controversial involvement of military-owned commercial interests and foundations. The Armed Forces were formed during the Indonesian National Revolution when it undertook guerrilla warfare along with informal militia. Since then, territorial lines have formed

6116-495: The Bali myna , Sumatran orangutan , and Javan rhinoceros . Some academics describe the deforestation and other environmental destruction in the country as an ecocide . As of 2023, the government of Indonesia has gazetted 21.3% of the country's land as protected areas , with the intention of developing a new protected area strategy in line with global post-2020 framework . The country also has 411 marine reserves , or 9% of

6255-611: The Constitutional Court ( Mahkamah Konstitusi ) which listens to constitutional and political matters, and the Religious Court ( Pengadilan Agama ), which deals with codified Islamic Personal Law ( sharia ) cases. Additionally, the Judicial Commission ( Komisi Yudisial ) monitors the performance of judges. Since 1999, Indonesia has had a multi-party system. In all legislative elections since

6394-471: The Consumer Price Index have contributed to strong economic growth in recent years. From 2007 to 2019, annual growth accelerated to between 4% and 6% due to improvements in the banking sector and domestic consumption, helping Indonesia weather the 2008–2009 Great Recession , and regain in 2011 the investment grade rating it had lost in 1997. As of 2019 , 9.41% of the population lived below

6533-449: The Indian astronomer Aryabhata suggested that the spherical Earth rotates about its axis daily and that the apparent movement of the stars is a relative motion caused by the rotation of the Earth. He provided the following analogy: "Just as a man in a boat going in one direction sees the stationary things on the bank as moving in the opposite direction, in the same way to a man at Lanka the fixed stars appear to be going westward." In

6672-617: The Japanese invasion and occupation ended Dutch rule and encouraged the independence movement. Two days after the surrender of Japan in August 1945, influential nationalist leaders Sukarno and Mohammad Hatta issued the Proclamation of Indonesian Independence . Sukarno, Hatta, and Sutan Sjahrir were appointed president, vice-president, and prime minister, respectively. The Netherlands attempted to re-establish their rule. In

6811-733: The Maluku Islands . Dutch and British traders followed. In 1602, the Dutch established the Dutch East India Company ( Verenigde Oostindische Compagnie ; VOC) and became the dominant European power for almost 200 years. The VOC was dissolved in 1799 following bankruptcy, and the Netherlands established the Dutch East Indies as a nationalised colony. For most of the colonial period , Dutch control over

6950-481: The Norte Chico civilization and Casma–Sechin culture from the northern coast of Peru. These civilizations built cities, pyramids, and plazas in the coastal river valleys of northern Peru with some ruins dating back to 3600 BCE . Easter Island , located about 3,500 kilometres from Chile and French Polynesia , is considered to be the most remote place on Earth to have been permanently inhabited by humans before

7089-515: The Northern Hemisphere , except in the Antarctic which is colder than the Arctic . This is because the Southern Hemisphere has significantly more ocean and much less land; water heats up and cools down more slowly than land. The differences are also attributed to oceanic heat transfer and differing extents of greenhouse trapping. In the Southern Hemisphere, the Sun passes from east to west through

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7228-512: The Organisation of Islamic Cooperation . The name Indonesia derives from the Greek words Indos ( Ἰνδός ) and nesos ( νῆσος ), meaning "Indian islands". The name dates back to the 19th century, far predating the formation of independent Indonesia. In 1850, George Windsor Earl , an English ethnologist , proposed the terms Indunesians —and, his preference, Malayunesians —for

7367-556: The Prosperous Justice Party (PKS). The first general election was held in 1955 to elect members of the DPR and the Constitutional Assembly ( Konstituante ). The most recent elections in 2019 resulted in nine political parties in the DPR, with a parliamentary threshold of 4% of the national vote. At the national level, Indonesians did not elect a president until 2004. Since then, the president

7506-529: The Ramsar convention . Around 9% of the Indonesia surface are national parks. As of 2012 Indonesia had over 100 marine protected areas covering an area of 15.7 million ha, of which 32 where managed by the Ministry of Forestry while the rest where managed by local governments. In 2009 the president Susilo Bambang Yudhoyono declared a target of reaching 20 million hectares by 2020. In 2010 Indonesia also set out

7645-417: The Sun's central place . However, Aristotle in the fourth century BCE criticized the ideas of Philolaus as being based on theory rather than observation. He established the idea of a sphere of fixed stars that rotated about Earth. This was accepted by most of those who came after, in particular Claudius Ptolemy (2nd century CE), who thought Earth would be devastated by gales if it rotated. In 499 CE,

7784-715: The UNHRC have raised the issue of human rights abuses committed by Indonesian troops in Papua such as extrajudicial killings and forced disappearances. Past engagements of the army include the conflict against the Netherlands over the Dutch New Guinea , the opposition to the British -sponsored creation of Malaysia (" Konfrontasi "), the mass killings of the Indonesian Communist Party (PKI), and

7923-489: The Weber Line . In his 1869 book, The Malay Archipelago , Wallace described numerous species unique to the area. The region of islands between his line and New Guinea is now termed Wallacea . Indonesia's large and growing population and rapid industrialisation present serious environmental issues . They are often given a lower priority due to high poverty levels and weak, under-resourced governance. Problems include

8062-672: The anticlockwise direction. During solar eclipses viewed from a point to the south of the Tropic of Capricorn, the Moon moves from left to right on the disc of the Sun (see, for example, photos with timings of the solar eclipse of November 13, 2012 ), while viewed from a point to the north of the Tropic of Cancer (i.e., in the Northern Hemisphere), the Moon moves from right to left during solar eclipses. The Coriolis effect causes cyclones and tropical storms to spin clockwise in

8201-429: The eastern part of Malaysia , as well as maritime borders with Singapore , Peninsular Malaysia , Vietnam , Thailand , the Philippines , Australia , Palau , and India . Despite its large population and densely populated regions, Indonesia has vast areas of wilderness that support one of the world's highest levels of biodiversity . The Indonesian archipelago has been a valuable region for trade since at least

8340-569: The invasion of East Timor , the latter having been Indonesia's most massive military operation. Indonesia has a mixed economy in which the private sector and government play vital roles. As the only G20 member state in Southeast Asia, the country has the largest economy in the region and is classified as a newly industrialised country . Per a 2023 estimate, it is the world's 16th largest economy by nominal GDP and 7th in terms of GDP at PPP , estimated to be US$ 1.417 trillion and US$ 4.393 trillion, respectively. Per capita GDP in PPP

8479-436: The palm oil industry, which has been criticised for its environmental impact and displacement of local communities. The situation has made Indonesia the world's largest forest-based emitter of greenhouse gases. It also threatens the survival of indigenous and endemic species. The International Union for Conservation of Nature (IUCN) identified 140 species of mammals as threatened and 15 as critically endangered, including

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8618-459: The pendulum measurements taken by Richer in 1673 as corroboration of the change in gravity , but initial measurements of meridian lengths by Picard and Cassini at the end of the 17th century suggested the opposite. However, measurements by Maupertuis and the French Geodesic Mission in the 1730s established the oblateness of Earth , thus confirming the positions of both Newton and Copernicus . In Earth's rotating frame of reference,

8757-436: The provinces , which have a legislature ( Dewan Perwakilan Rakyat Daerah , DPRD) and an elected governor . A total of 38 provinces have been established from the original eight in 1945, the most recent change being the split of Southwest Papua from the province of West Papua in 2022. The second level are the regencies ( kabupaten ) and cities ( kota ), led by regents ( bupati ) and mayors ( walikota ), respectively, and

8896-410: The tropical rainforest climate found on every large island of Indonesia. Cooler climate types exist in mountainous regions that are 1,300 to 1,500 metres (4,300 to 4,900 feet) above sea level. The oceanic climate (Köppen Cfb ) prevails in highland areas adjacent to rainforest climates, with uniform precipitation year-round. In highland areas near the tropical monsoon and tropical savanna climates ,

9035-402: The 10th century, some Muslim astronomers accepted that the Earth rotates around its axis. According to al-Biruni , al-Sijzi (d. c. 1020) invented an the astrolabe called al-zūraqī based on the idea believed by some of his contemporaries "that the motion we see is due to the Earth's movement and not to that of the sky." The prevalence of this view is further confirmed by a reference from

9174-442: The 13th century which states: "According to the geometers [or engineers] ( muhandisīn ), the Earth is in constant circular motion, and what appears to be the motion of the heavens is actually due to the motion of the Earth and not the stars." Treatises were written to discuss its possibility, either as refutations or expressing doubts about Ptolemy's arguments against it. At the Maragha and Samarkand observatories , Earth's rotation

9313-413: The 1950s and 1960s to promote agricultural self-sufficiency. A gradual process of industrialisation and urbanisation began in the late 1960s and accelerated in the 1980s as falling oil prices saw the government focus on diversifying away from oil exports and towards manufactured exports. This development continued throughout the 1980s and into the next decade despite the 1990 oil price shock , during which

9452-411: The 400 volcanoes, around 130 are active. Between 1972 and 1991, there were 29 volcanic eruptions, mostly on Java. Volcanic ash has made agricultural conditions unpredictable in some areas. However, it has also resulted in fertile soils, a factor in historically sustaining the high population densities of Java and Bali. A massive supervolcano erupted at present-day Lake Toba around 70,000 BCE. It

9591-458: The 8th century BCE, as well as from the medieval Islamic world and elsewhere. These observations can be used to determine changes in Earth's rotation over the last 27 centuries, since the length of the day is a critical parameter in the calculation of the place and time of eclipses. A change in day length of milliseconds per century shows up as a change of hours and thousands of kilometers in eclipse observations. The ancient data are consistent with

9730-419: The Age of Discovery. It was settled by a Polynesian group known as the Rapa Nui . Areas of the Southern Hemisphere that had no contact with humans before the Age of Discovery include Christmas Island and Mauritius (in the Indian Ocean ), the Galápagos Islands , Juan Fernández Islands and Lord Howe Island (in the South Pacific), the Falkland Islands and Tristan da Cunha (in the South Atlantic ) and

9869-409: The Cold War. Numerous attempts by the United States and the Soviet Union , and China to some degree, culminated in the 1965 coup attempt and subsequent upheaval that led to a reorientation of foreign policy. Quiet alignment with the Western world while maintaining a non-aligned stance has characterised Indonesia's foreign policy since then. Today, it maintains close relations with its neighbours and

10008-510: The East ( de Oost ); and Insulinde . After 1900, Indonesia became more common in academic circles outside the Netherlands, and native nationalist groups adopted it for political expression. Adolf Bastian of the University of Berlin popularized the name through his book Indonesien oder die Inseln des Malayischen Archipels, 1884–1894 . The first native scholar to use the name was Ki Hajar Dewantara when in 1913, he established

10147-544: The GDP rose at an average rate of 7.1%. As a result, the official poverty rate fell from 60% to 15%. Trade barriers reduction from the mid-1980s made the economy more globally integrated. The growth ended with the 1997 Asian financial crisis that severely impacted the economy, including a 13.1% real GDP contraction in 1998 and a 78% inflation. The economy reached its low point in mid-1999 with only 0.8% real GDP growth. Relatively steady inflation and an increase in GDP deflator and

10286-626: The Geographic North Pole or Terrestrial North Pole, is the point in the Northern Hemisphere where Earth's axis of rotation meets its surface. This point is distinct from Earth's North Magnetic Pole . The South Pole is the other point where Earth's axis of rotation intersects its surface, in Antarctica . Earth rotates once in about 24 hours with respect to the Sun , but once every 23 hours, 56 minutes and 4 seconds with respect to other distant stars ( see below ). Earth's rotation

10425-581: The Philippines, Palau, and Australia. At 4,884 metres (16,024 ft), Puncak Jaya is Indonesia's highest peak, and Lake Toba in Sumatra is the largest lake, with an area of 1,145 km (442 sq mi). Indonesia's largest rivers are in Kalimantan and New Guinea and include Kapuas , Barito , Mamberamo , Sepik and Mahakam . They serve as communication and transport links between

10564-472: The Southern Hemisphere include Bali , Buenos Aires , Cape Town , Easter Island , Lima , Rio de Janeiro , Sydney and Tahiti . According to a 2017 report, the most popular Southern Hemisphere " bucket list " destinations among Australians were Antarctica , New Zealand , the Galápagos Islands , South Africa and Peru . Quito, Ecuador is the closest major city to the equatorial line on

10703-792: The Southern Hemisphere include São Paulo , where the B3 (stock exchange) is headquartered, along with Sydney, home to the Australian Securities Exchange , Jakarta, the seat of the Indonesia Stock Exchange , Johannesburg , home to the Johannesburg Stock Exchange , and Buenos Aires, headquarters of the Buenos Aires Stock Exchange , the oldest stock market in the Southern Hemisphere. Common tourist destinations in

10842-483: The Southern Hemisphere with brighter and more numerous stars. Forests in the Southern Hemisphere have special features which set them apart from those in the Northern Hemisphere. Both Chile and Australia share, for example, unique beech species or Nothofagus , and New Zealand has members of the closely related genera Lophozonia and Fuscospora . The eucalyptus is native to Australia but

10981-1073: The Southern Hemisphere). Portuguese is the most spoken language in the Southern Hemisphere, with over 230 million speakers in six countries – mostly in Brazil, but also in Angola , Mozambique , East Timor , and small parts of Equatorial Guinea and São Tomé and Príncipe that lie south of the Equator . Among the largest metropolitan areas in the Southern Hemisphere are Jakarta (34 million people), São Paulo (22 million), Kinshasa-Brazzaville (19 million), Buenos Aires (16 million), Rio de Janeiro (12 million), Johannesburg , Lima (11 million each), Surabaya (10 million), Bandung (9 million), Luanda (8 million), Dar es Salaam , Santiago (7 million each), Belo Horizonte , Semarang (6 million each), Sydney , Melbourne and Cape Town (5 million each). Important financial and commercial centres in

11120-400: The Southern Hemisphere, as opposed to anticlockwise in the Northern Hemisphere. The southern temperate zone , a subsection of the Southern Hemisphere, is nearly all oceanic. The Sagittarius constellation that includes the galactic centre is a southern constellation as well as both Magellanic Clouds . This, combined with clearer skies, makes for excellent viewing of the night sky from

11259-516: The Southern Hemisphere, while more than 150 million live in Java , the most populous island in the world. The most populous country in the Southern Hemisphere is Indonesia , with 275 million people (roughly 30 million of whom live north of the Equator on the northern portions of the islands of Sumatra , Borneo , and Sulawesi , as well as most of North Maluku , while the rest of the population lives in

11398-552: The Spice Islands of Maluku during the Age of Discovery . Following three and a half centuries of Dutch colonialism , Indonesia secured its independence after World War II . Indonesia's history has since been turbulent, with challenges posed by natural disasters, corruption, separatism, a democratisation process, and periods of rapid economic growth. Indonesia consists of thousands of distinct native ethnic groups and hundreds of linguistic groups, with Javanese being

11537-491: The UN) scattered over both sides of the equator, around 6,000 of which are inhabited. The largest are Sumatra , Java , Borneo (shared with Brunei and Malaysia), Sulawesi , and New Guinea (shared with Papua New Guinea). Indonesia shares land borders with Malaysia on Borneo and Sebatik , Papua New Guinea on the island of New Guinea, East Timor on the island of Timor , and maritime borders with Singapore, Malaysia, Vietnam,

11676-399: The archipelago and made much of the Northern Hemisphere without summer in 1816 . The latter produced the loudest sound in recorded history and caused 36,000 deaths due to the eruption itself and the resulting tsunamis, with significant additional effects around the world years after the event. Recent catastrophic disasters due to seismic activity include the 2004 Indian Ocean earthquake and

11815-560: The archipelago around 2,000 BCE and confined the native Melanesians to the far eastern regions as they spread east. Ideal agricultural conditions and the mastering of wet-field rice cultivation as early as the eighth century BCE allowed villages, towns, and small kingdoms to flourish by the first century CE. The archipelago's strategic sea-lane position fostered inter-island and international trade, including with Indian kingdoms and Chinese dynasties, from several centuries BCE. Trade has since fundamentally shaped Indonesian history. From

11954-571: The archipelago was tenuous. Dutch forces were engaged continuously in quelling rebellions on and off Java. The influence of local leaders such as Prince Diponegoro in central Java, Imam Bonjol in central Sumatra, Pattimura in Maluku , and the Aceh War weakened the Dutch and tied up the colonial military forces. Only in the early 20th century did Dutch dominance extend to what was to become Indonesia's current boundaries. During World War II,

12093-508: The atmospheric tide, resulting in no net torque and a constant rotational period. This stabilizing effect could have been broken by a sudden change in global temperature. Recent computational simulations support this hypothesis and suggest the Marinoan or Sturtian glaciations broke this stable configuration about 600 Myr ago; the simulated results agree quite closely with existing paleorotational data. Some recent large-scale events, such as

12232-414: The basis of a system assuming a stationary Earth. In 1600, William Gilbert strongly supported Earth's rotation in his treatise on Earth's magnetism and thereby influenced many of his contemporaries. Those like Gilbert who did not openly support or reject the motion of Earth about the Sun are called "semi-Copernicans". A century after Copernicus, Riccioli disputed the model of a rotating Earth due to

12371-476: The basis of all TNI branches' structure, aimed at maintaining domestic stability and deterring foreign threats. The military has possessed a strong political influence since its founding, which peaked during the New Order . Political reforms in 1998 included the removal of the TNI's formal representation from the legislature. Nevertheless, its political influence remains, albeit at a reduced level. Since independence,

12510-578: The beginning of the Indonesian National Revolution , the Dutch recognised Indonesian independence in the face of international pressure in December 1949, following the Dutch–Indonesian Round Table Conference . Despite political, social, and sectarian divisions, Indonesians found unity in their fight for independence. As president, Sukarno moved Indonesia from democracy towards authoritarianism and maintained power by balancing

12649-574: The celestial reference frame, as it orbits the Sun (so 366.24 rotations/y). The mean solar day in SI seconds is available from the IERS for the periods 1623–2005 and 1962–2005 . Recently (1999–2010) the average annual length of the mean solar day in excess of 86,400 SI seconds has varied between 0.25 ms and 1 ms , which must be added to both the stellar and sidereal days given in mean solar time above to obtain their lengths in SI seconds (see Fluctuations in

12788-542: The cloud of dust , rocks and gas that coalesced to form the Solar System . This primordial cloud was composed of hydrogen and helium produced in the Big Bang , as well as heavier elements ejected by supernovas . As this interstellar dust is heterogeneous, any asymmetry during gravitational accretion resulted in the angular momentum of the eventual planet. However, if the giant-impact hypothesis for

12927-524: The coast of Tanzania , may be older than Bogor. A Greco-Roman text written between 1 and 100 CE , the Periplus of the Erythraean Sea , mentioned the island of Menuthias ( Ancient Greek : Μενουθιάς) as a trading port on the east African coast, which is probably the small Tanzanian island of Unguja on which Zanzibar is located. The oldest monumental civilizations in the Southern Hemisphere are

13066-497: The continent of Antarctica . Entirely — Partly — Entirely — Partly — Entirely — Mostly — Partly — Entirely — Earth%27s rotation Earth's rotation or Earth's spin is the rotation of planet Earth around its own axis , as well as changes in the orientation of the rotation axis in space. Earth rotates eastward , in prograde motion . As viewed from the northern polar star Polaris , Earth turns counterclockwise . The North Pole , also known as

13205-499: The country hardest hit by the 1997 Asian financial crisis . It brought out popular discontent with the New Order's corruption and suppression of political opposition and ultimately ended Suharto's presidency. In 1999, East Timor seceded from Indonesia, following its 1975 invasion by Indonesia and a 25-year occupation marked by international condemnation of human rights abuses . Since 1998, democratic processes have been strengthened by enhancing regional autonomy and instituting

13344-456: The country has struggled to maintain unity against local insurgencies and separatist movements. Some, notably in Aceh and Papua , have led to an armed conflict and subsequent allegations of human rights abuses and brutality from all sides. The former was resolved peacefully in 2005, while the latter has continued amid a significant, albeit imperfect, implementation of regional autonomy laws. Reports from Amnesty , Human Rights Watch , and

13483-497: The country's first direct presidential election in 2004 . Political, economic and social instability, corruption, and instances of terrorism remained problems in the 2000s; however, the economy has performed strongly since 2007. Although relations among the diverse population are mostly harmonious, acute sectarian discontent and violence remain problematic in some areas. A political settlement to an armed separatist conflict in Aceh

13622-415: The country's total maritime area, and has set a target to increase this to 30% by 2045. However, a 2023 study suggested this target is not on track and that existing marine reserves are poorly managed. Around 390 marine areas are managed in some way by government bodies, communities, and other sectors, with potential for these to be considered other effective area-based conservation measures (OECMs). There

13761-452: The day has increased steadily from about 21 hours at 600 Myr ago to the current 24-hour value. By counting the microscopic lamina that form at higher tides, tidal frequencies (and thus day lengths) can be estimated, much like counting tree rings, though these estimates can be increasingly unreliable at older ages. The current rate of tidal deceleration is anomalously high, implying Earth's rotational velocity must have decreased more slowly in

13900-432: The destruction of peatlands, large-scale illegal deforestation (causing extensive haze across parts of Southeast Asia ), over-exploitation of marine resources, air pollution, garbage management, and reliable water and wastewater services . These issues contribute to Indonesia's low ranking (number 116 out of 180 countries) in the 2020 Environmental Performance Index . The report also indicates that Indonesia's performance

14039-489: The dominant religion in Java and Sumatra by the end of the 16th century. For the most part, Islam overlaid and mixed with existing cultural and religious influences, which shaped the predominant form of Islam in Indonesia, particularly in Java. The first Europeans arrived in the archipelago in 1512, when Portuguese traders, led by Francisco Serrão , sought to monopolise the sources of nutmeg , cloves , and cubeb pepper in

14178-651: The executive branch. Reforms since 1998 have markedly increased its role in national governance, while the DPD is a new chamber for matters of regional management. Most civil disputes appear before the State Court ( Pengadilan Negeri ); appeals are heard before the High Court ( Pengadilan Tinggi ). The Supreme Court of Indonesia ( Mahkamah Agung ) is the highest level of the judicial branch and hears final cessation appeals and conducts case reviews. Other courts include

14317-728: The fall of the New Order , no political party has won an overall majority of seats. The Indonesian Democratic Party of Struggle (PDI-P) secured the most votes in the 2024 general election , becoming their third consecutive wins since 2014. Other notable parties include the Party of the Functional Groups ( Golkar ), the Great Indonesia Movement Party ( Gerindra ), the Democratic Party , and

14456-408: The fastest as Earth spins. Earth's rotation axis moves with respect to the fixed stars ( inertial space ); the components of this motion are precession and nutation . It also moves with respect to Earth's crust; this is called polar motion . Precession is a rotation of Earth's rotation axis, caused primarily by external torques from the gravity of the Sun, Moon and other bodies. The polar motion

14595-399: The first was Philolaus (470–385 BCE), though his system was complicated, including a counter-earth rotating daily about a central fire. A more conventional picture was supported by Hicetas , Heraclides and Ecphantus in the fourth century BCE who assumed that Earth rotated but did not suggest that Earth revolved about the Sun. In the third century BCE, Aristarchus of Samos suggested

14734-438: The frequency of drought and food shortages (with an impact on precipitation and the patterns of wet and dry seasons, and thus Indonesia's agriculture system ) as well as numerous diseases and wildfires. Rising sea levels would also threaten most of Indonesia's population, who live in low-lying coastal areas. Impoverished communities would likely be affected the most by climate change. Tectonically , most of Indonesia's area

14873-576: The inhabitants of the "Indian Archipelago or Malay Archipelago ". In the same publication, one of his students, James Richardson Logan , used Indonesia as a synonym for Indian Archipelago . Dutch academics writing in East Indies publications were reluctant to use Indonesia . They preferred Malay Archipelago ( Dutch : Maleische Archipel ); the Netherlands East Indies ( Nederlandsch Oost Indië ), popularly Indië ;

15012-498: The interiors of Kalimantan and Papua, and less in areas closer to Australia, such as Nusa Tenggara, which tends to be relatively dry. The almost uniformly warm waters that constitute 81% of Indonesia's area ensure that land temperatures remain relatively constant. Humidity is quite high, at between 70 and 90%. Winds are moderate and generally predictable, with monsoons usually blowing in from the south and east in May through October and from

15151-419: The island's river settlements. Indonesia lies along the equator, and its climate tends to be relatively even year-round. Indonesia has two seasons—a dry season and a wet season —with no extremes of summer or winter. For most parts of Indonesia, the dry season falls between May and October, while the wet season falls between November and April. Indonesia's climate is almost entirely tropical , dominated by

15290-457: The lack of then-observable eastward deflections in falling bodies; such deflections would later be called the Coriolis effect . However, the contributions of Kepler, Galileo , and Newton gathered support for the theory of the rotation of the Earth. Earth's rotation implies that the Equator bulges and the geographical poles are flattened. In his Principia , Newton predicted this flattening would amount to one part in 230, and pointed to

15429-464: The largest. A shared identity has developed with the motto " Bhinneka Tunggal Ika " ("Unity in Diversity" literally , "many, yet one"), defined by a national language , cultural diversity, religious pluralism within a Muslim-majority population, and a history of colonialism and rebellion against it. A developing country , Indonesia is classified a newly industrialized country , with its economy

15568-403: The length of day ). The angular speed of Earth's rotation in inertial space is (7.292 115 0 ± 0.000 000 1) × 10 ^   radians per SI second . Multiplying by (180°/π radians) × (86,400 seconds/day) yields 360.985 6  °/day , indicating that Earth rotates more than 360 degrees relative to the fixed stars in one solar day. Earth's movement along its nearly circular orbit while it

15707-474: The loss of weight, and Earth becomes more spherical, which has the effect of bringing mass closer to its centre of gravity. Conservation of angular momentum dictates that a mass distributed more closely around its centre of gravity spins faster. Among the ancient Greeks , several of the Pythagorean school believed in the rotation of Earth rather than the apparent diurnal rotation of the heavens. Perhaps

15846-488: The movement of the Earth is violent, then the stars' movement must be much more so. He acknowledged the contribution of the Pythagoreans and pointed to examples of relative motion. For Copernicus, this was the first step in establishing the simpler pattern of planets circling a central Sun. Tycho Brahe , who produced accurate observations on which Kepler based his laws of planetary motion , used Copernicus's work as

15985-642: The national level is the People's Consultative Assembly ( Majelis Permusyawaratan Rakyat , MPR). Its main functions are supporting and amending the constitution, inaugurating and impeaching the president, and formalising broad outlines of state policy. The MPR comprises two houses; the People's Representative Council ( Dewan Perwakilan Rakyat , DPR), with 575 members, and the Regional Representative Council ( Dewan Perwakilan Daerah , DPD), with 136. The DPR passes legislation and monitors

16124-559: The north and west in November through April. Typhoons and large-scale storms pose little hazard to mariners; significant dangers come from swift currents in channels, such as the Lombok and Sape straits. Several studies consider Indonesia to be at severe risk from the projected effects of climate change . These include unreduced emissions resulting in an average temperature rise of around 1 °C (2 °F) by mid-century, raising

16263-406: The north, although north of the Tropic of Capricorn the mean Sun can be directly overhead or due south at midday. The Sun follows a right-to-left trajectory through the northern sky unlike the left-to-right motion of the Sun when seen from the Northern Hemisphere as it passes through the southern sky. Sun-cast shadows turn anticlockwise throughout the day and sundials have the hours increasing in

16402-425: The only ones where the indigenous people have privileges in their local government. Indonesia maintains 132 diplomatic missions abroad, including 95 embassies. The country adheres to what it calls a "free and active" foreign policy, seeking a role in regional affairs in proportion to its size and location but avoiding involvement in conflicts among other countries. Indonesia was a significant battleground during

16541-487: The opposing forces of the military , political Islam, and the increasingly powerful Communist Party of Indonesia (PKI). Tensions between the military and the PKI culminated in an attempted coup in 1965. The army, led by Major General Suharto , countered by instigating a violent anti-communist purge that killed between 500,000 and one million people and incarcerated roughly a million more in concentration camps . The PKI

16680-532: The origin of the Moon is correct, this primordial rotation rate would have been reset by the Theia impact 4.5 billion years ago. Regardless of the speed and tilt of Earth's rotation before the impact, it would have experienced a day some five hours long after the impact. Tidal effects would then have slowed this rate to its modern value. Indonesia Indonesia , officially the Republic of Indonesia ,

16819-495: The past. Empirical data tentatively shows a sharp increase in rotational deceleration about 600 Myr ago. Some models suggest that Earth maintained a constant day length of 21 hours throughout much of the Precambrian . This day length corresponds to the semidiurnal resonant period of the thermally driven atmospheric tide ; at this day length, the decelerative lunar torque could have been canceled by an accelerative torque from

16958-411: The pendulum's plane of oscillation appears to rotate at a rate depending on latitude. At the latitude of Paris, the predicted and observed shift was about 11 degrees clockwise per hour. Foucault pendulums now swing in museums worldwide . Earth's rotation period relative to the Sun ( solar noon to solar noon) is its true solar day or apparent solar day . It depends on Earth's orbital motion and

17097-479: The planet, and Ushuaia, Argentina claims the title of world's southernmost city. Cape Town, Christchurch , Hobart , Punta Arenas and Ushuaia are officially acknowledged as the five international Antarctic gateway cities that serve as primary entry points for travel to the Antarctic region. Among the most developed nations in the Southern Hemisphere is Australia, with a nominal GDP per capita of US$ 63,487 and

17236-544: The poverty line, and the official open unemployment rate was 5.28%. During the first year of the global COVID-19 pandemic , the economy suffered its first recession since the 1997 crisis but recovered in the following year. Indonesia has abundant natural resources. Its primary industries are fishing, petroleum, timber, paper products, cotton cloth, tourism, petroleum mining, natural gas, bauxite, coal, and tin. Its main agricultural products are rice, coconuts, soybeans, bananas, coffee, tea, palm, rubber, and sugar cane. Indonesia

17375-455: The seventh century CE, the Srivijaya naval kingdom flourished due to trade and the influences of Hinduism and Buddhism . Between the eighth and tenth centuries CE, the agricultural Buddhist Sailendra and Hindu Mataram dynasties thrived and declined in inland Java, leaving grand religious monuments such as Sailendra's Borobudur and Mataram's Prambanan . The Hindu Majapahit kingdom

17514-423: The seventh century, when Sumatra's Srivijaya and later Java's Majapahit kingdoms engaged in commerce with entities from mainland China and the Indian subcontinent . Over the centuries, local rulers assimilated foreign influences, leading to the flourishing of Hindu and Buddhist kingdoms. Sunni traders and Sufi scholars later brought Islam , and European powers fought one another to monopolise trade in

17653-438: The subtropical highland climate (Köppen Cwb ) is more pronounced during dry season. Some regions, such as Kalimantan and Sumatra , experience only slight differences in rainfall and temperature between the seasons, whereas others, such as Nusa Tenggara, experience far more pronounced differences with droughts in the dry season and floods in the wet season. Rainfall varies across regions, with more in western Sumatra, Java, and

17792-585: The true solar day during the course of an entire year is the mean solar day , which contains 86,400 mean solar seconds. Currently, each of these seconds is slightly longer than an SI second because Earth's mean solar day is now slightly longer than it was during the 19th century due to tidal friction . The average length of the mean solar day since the introduction of the leap second in 1972 has been about 0 to 2 ms longer than 86,400 SI seconds. Random fluctuations due to core-mantle coupling have an amplitude of about 5 ms. The mean solar second between 1750 and 1892

17931-633: The village ( desa ) is divided into smaller units called dusun or dukuh (hamlets), which are the same as RW. Following the implementation of regional autonomy measures in 2001, regencies and cities have become chief administrative units responsible for providing most government services. The village administration level is the most influential on a citizen's daily life and handles village or neighbourhood matters through an elected village head ( lurah or kepala desa ). Nine provinces—Aceh, Jakarta, Yogyakarta, Papua , Central Papua , Highland Papua , South Papua , Southwest Papua , and West Papua —are granted

18070-1122: The water stored in the Three Gorges Dam has increased the length of Earth's day by 0.06 microseconds due to the shift in mass. The primary monitoring of Earth's rotation is performed by very-long-baseline interferometry coordinated with the Global Positioning System , satellite laser ranging , and other satellite geodesy techniques. This provides an absolute reference for the determination of universal time , precession and nutation . The absolute value of Earth rotation including UT1 and nutation can be determined using space geodetic observations, such as very-long-baseline interferometry and lunar laser ranging , whereas their derivatives, denoted as length-of-day excess and nutation rates can be derived from satellite observations, such as GPS , GLONASS , Galileo and satellite laser ranging to geodetic satellites. There are recorded observations of solar and lunar eclipses by Babylonian and Chinese astronomers beginning in

18209-521: The world's 16th-largest by nominal GDP and the 7th-largest by PPP . It is the world's third-largest democracy, a regional power , and is considered a middle power in global affairs. The country is a member of several multilateral organisations, including the United Nations, World Trade Organization , G20 , and a founding member of the Non-Aligned Movement , Association of Southeast Asian Nations , East Asia Summit , D-8 , APEC , and

18348-495: The world's fourth-most-populous country and the most populous Muslim-majority country . Java, the world's most populous island , is home to more than half of the country's population. Indonesia is a presidential republic with an elected legislature . It has 38 provinces , of which nine have special autonomous status . The country's largest city, Jakarta , is the world's second-most-populous urban area . Indonesia shares land borders with Papua New Guinea , East Timor , and

18487-527: The world) and 0.420 (number 187 in the world), respectively. The nominal GDPs per capita of these two countries do not go above US$ 650, a tiny fraction of the incomes enjoyed by Australians and New Zealanders. The Southern Hemisphere has long been secondary in the global distribution of demographic, economic and political power, as it has less land than the Northern Hemisphere. In recent times, however, countries such as Australia have made greater efforts to economically engage with those from their hemisphere. Before

18626-681: Was a founding member of the Non-Aligned Movement (NAM) and the Organisation of Islamic Cooperation (OIC). Indonesia is a signatory to the ASEAN Free Trade Area agreement, the Cairns Group , the World Trade Organization (WTO), and a former member of OPEC . Indonesia has been a humanitarian and development aid recipient since 1967, and recently, the country established its first overseas aid programme in late 2019. Indonesia's Armed Forces (TNI) include

18765-579: Was achieved in 2005. Indonesia is the southernmost country in Asia. The country lies between latitudes 11°S and 6°N and longitudes 95°E and 141°E . A transcontinental country spanning Southeast Asia and Oceania, it is the world's largest archipelagic state , extending 5,120 kilometres (3,181 mi) from east to west and 1,760 kilometres (1,094 mi) from north to south. The country's Coordinating Ministry for Maritime and Investments Affairs says Indonesia has 17,504 islands (with 16,056 registered at

18904-454: Was blamed for the coup and effectively destroyed. Suharto capitalised on Sukarno's weakened position, and following a drawn-out power play with Sukarno , Suharto was appointed president in March 1968. His US-backed "New Order" administration encouraged foreign direct investment , which was a crucial factor in the subsequent three decades of substantial economic growth. Indonesia was

19043-415: Was chosen in 1895 by Simon Newcomb as the independent unit of time in his Tables of the Sun . These tables were used to calculate the world's ephemerides between 1900 and 1983, so this second became known as the ephemeris second . In 1967 the SI second was made equal to the ephemeris second. The apparent solar time is a measure of Earth's rotation and the difference between it and the mean solar time

19182-478: Was discussed by Tusi (born 1201) and Qushji (born 1403); the arguments and evidence they used resemble those used by Copernicus. In medieval Europe, Thomas Aquinas accepted Aristotle's view and so, reluctantly, did John Buridan and Nicole Oresme in the fourteenth century. Not until Nicolaus Copernicus in 1543 adopted a heliocentric world system did the contemporary understanding of Earth's rotation begin to be established. Copernicus pointed out that if

19321-401: Was founded in eastern Java in the late 13th century, and under Gajah Mada , its influence stretched over much of present-day Indonesia. This period is often referred to as the "Golden Age" in Indonesian history. The earliest evidence of Islamized populations in the archipelago dates to the 13th century in northern Sumatra . Other parts of the archipelago gradually adopted Islam, and it was

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