A lighthouse is a tower, building, or other type of physical structure designed to emit light from a system of lamps and lenses and to serve as a beacon for navigational aid for maritime pilots at sea or on inland waterways.
86-445: LECO Corporation , founded in 1936 by Carl Schultz and George Krasl, operates its analytical instrumentation research and development, and manufacturing from its headquarters located in St. Joseph, Michigan . LECO develops and manufactures elemental measurement and molecular Time-of-flight mass spectrometry instrumentation, following ISO 9000 standards. The LECO trademark is an acronym of
172-402: A rescue service , if necessary. Improvements in maritime navigation and safety, such Global Positioning System (GPS), led to the phasing out of non-automated lighthouses across the world. Although several closed due to safety concerns, Canada still maintains 49 staffed lighthouses, split roughly evenly across east and west coasts. The remaining modern lighthouses are usually illuminated by
258-640: A Diesel generator for backup. Many Fresnel lens installations have been replaced by rotating aerobeacons , which require less maintenance. In modern automated lighthouses, the system of rotating lenses is often replaced by a high intensity light that emits brief omnidirectional flashes, concentrating the light in time rather than direction. These lights are similar to obstruction lights used to warn aircraft of tall structures. Later innovations were "Vega Lights", and experiments with light-emitting diode (LED) panels. LED lights, which use less energy and are easier to maintain, had come into widespread use by 2020. In
344-497: A city commission with five members, who are elected at large. City elections are held in November of even-numbered years; at each election, three commission seats become open. The two candidates receiving the greatest number of votes receive four-year terms, while the candidate receiving the third-greatest number of votes receives a two-year term. At the first meeting following each election, the commission selects from its own number
430-436: A filament source. Experimental installations of laser lights, either at high power to provide a "line of light" in the sky or, utilising low power, aimed towards mariners have identified problems of increased complexity in installation and maintenance, and high power requirements. The first practical installation, in 1971 at Point Danger lighthouse , Queensland , was replaced by a conventional light after four years, because
516-457: A form of concrete that will set under water used by the Romans, and developed a technique of securing the granite blocks together using dovetail joints and marble dowels . The dovetailing feature served to improve the structural stability , although Smeaton also had to taper the thickness of the tower towards the top, for which he curved the tower inwards on a gentle gradient. This profile had
602-414: A horizontal plane, and horizontally the light is focused into one or a few directions at a time, with the light beam swept around. As a result, in addition to seeing the side of the light beam, the light is directly visible from greater distances, and with an identifying light characteristic . This concentration of light is accomplished with a rotating lens assembly. In early lighthouses, the light source
688-510: A male householder with no wife present, and 50.6% were non-families. 43.5% of all households were made up of individuals, and 13.9% had someone living alone who was 65 years of age or older. The average household size was 1.97 and the average family size was 2.74. The median age in the city was 41.6 years. 16.4% of residents were under the age of 18; 9.2% were between the ages of 18 and 24; 28.6% were from 25 to 44; 27.2% were from 45 to 64; and 18.6% were 65 years of age or older. The gender makeup of
774-403: A manufacturer and distributor of metallographic equipment since the 1970s, and makes ceramic products for the foundry industry. LECO Corporation has sales subsidiaries worldwide. As of June 8, 1977, Robert J. Warren (1933-2022), husband of Elizabeth D. Schultz and son-in-law of Carl Schultz, and family have become the sole owners of the company, acquiring outstanding stocks which had become
860-614: A mayor and mayor pro tem for the following two years. The city commission is a part-time body, typically meeting twice each month to act as a legislative body and set general policies. Day-to-day operations are delegated to a contracted city manager . Major city facilities include the City Hall and Police Station at 700 Broad Street; the Department of Public Works at 1160 Broad Street; the Fire Department at 915 Broad Street;
946-427: A more powerful hyperradiant Fresnel lens manufactured by the firm of Chance Brothers . While lighthouse buildings differ depending on the location and purpose, they tend to have common components. A light station comprises the lighthouse tower and all outbuildings, such as the keeper's living quarters, fuel house, boathouse, and fog-signaling building. The Lighthouse itself consists of a tower structure supporting
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#17327760349351032-530: A motor, to Silver Beach in St. Joseph. Herring's machine lifted ever so slightly off the ground and actually flew for seven seconds. Eleven days later, the inventor made another flight of ten seconds. While Herring had a powered heavier-than-air craft, he did not have a way to control it. It was left to the Wright brothers to perfect controlled flight five years later, and give themselves and Kitty Hawk, North Carolina ,
1118-602: A navigator with a line of position called a range in North America and a transit in Britain. Ranges can be used to precisely align a vessel within a narrow channel such as a river. With landmarks of a range illuminated with a set of fixed lighthouses, nighttime navigation is possible. Such paired lighthouses are called range lights in North America and leading lights in the United Kingdom. The closer light
1204-521: A number of screw-pile lighthouses. Englishman James Douglass was knighted for his work on the fourth Eddystone Lighthouse. United States Army Corps of Engineers Lieutenant George Meade built numerous lighthouses along the Atlantic and Gulf coasts before gaining wider fame as the winning general at the Battle of Gettysburg . Colonel Orlando M. Poe , engineer to General William Tecumseh Sherman in
1290-402: A particular color (usually formed by colored panes in the lantern) to distinguish safe water areas from dangerous shoals. Modern lighthouses often have unique reflectors or racon transponders so the radar signature of the light is also unique. Before modern strobe lights , lenses were used to concentrate the light from a continuous source. Vertical light rays of the lamp are redirected into
1376-547: A place in history that might have ended up belonging to Herring and St. Joseph. Two major shipping companies operated between St. Joseph and Chicago during the last half of the 19th century, the Goodrich Transportation company and the local firm of Graham and Morton. They dominated the traffic at St. Joseph for more than 100 years, although other smaller companies did operate during this time. Starting in 1874, Henry Graham and J. Stanley Morton began operating
1462-677: A rail line from New Buffalo to St. Joseph. This railroad connected St. Joseph to Grand Rapids , Muskegon , Detroit and Chicago. (Prior to this, the only connection St. Joseph had to these other cities was by water.) The line was reorganized as the Chicago and West Michigan Railway and then was incorporated into the Pere Marquette Railroad . Nowadays it is recognized as the CSX Grand Rapids Subdivision which runs from Chicago, IL to Grand Rapids,MI along
1548-411: A reservoir mounted above the burner. The lamp was first produced by Matthew Boulton , in partnership with Argand, in 1784, and became the standard for lighthouses for over a century. South Foreland Lighthouse was the first tower to successfully use an electric light in 1875. The lighthouse's carbon arc lamps were powered by a steam-driven magneto . John Richardson Wigham was the first to develop
1634-415: A single stationary flashing light powered by solar-charged batteries and mounted on a steel skeleton tower. Where the power requirement is too great for solar power alone, cycle charging of the battery by a Diesel generator is provided. The generator only comes into use when the battery needs charging, saving fuel and increasing periods between maintenance. John Smeaton is noteworthy for having designed
1720-552: A steam line out of St. Joseph. Their collaboration would become the Graham and Morton Transportation Company. Through vigorous competition, they won the war to become the major carrier out of St. Joseph. Goodrich stopped service to the Twin Cities in 1880. The company grew fast and over the fifty plus years of its existence became the second largest line on Lake Michigan behind only Goodrich. In 1924, as graded roads began to line
1806-477: A system for gas illumination of lighthouses. His improved gas 'crocus' burner at the Baily Lighthouse near Dublin was 13 times more powerful than the most brilliant light then known. The vaporized oil burner was invented in 1901 by Arthur Kitson , and improved by David Hood at Trinity House . The fuel was vaporized at high pressure and burned to heat the mantle, giving an output of over six times
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#17327760349351892-460: A total area of 4.80 square miles (12.43 km ), of which 3.22 square miles (8.34 km ) is land and 1.58 square miles (4.09 km ) is water. As of the census of 2010, there were 8,365 people, 3,933 households, and 1,941 families residing in the city. The population density was 2,597.8 inhabitants per square mile (1,003.0/km ). There were 4,795 housing units at an average density of 1,489.1 per square mile (574.9/km ). The racial makeup of
1978-481: Is a city and the county seat of Berrien County, Michigan . It was incorporated as a village in 1834 and as a city in 1891. As of the 2020 census , the city population was 7,856. It lies on the shore of Lake Michigan , at the mouth of the St. Joseph River , about 90 miles (140 km) east-northeast of Chicago. It is home of the American Society of Agricultural and Biological Engineers . The mouth of
2064-419: Is one example. Race Rocks Light in western Canada is painted in horizontal black and white bands to stand out against the horizon. For effectiveness, the lamp must be high enough to be seen before the danger is reached by a mariner. The minimum height is calculated by trigonometry (see Distance to the horizon ) as D = 1.22 H {\displaystyle D=1.22{\sqrt {H}}} , where H
2150-510: Is the height above water in feet, and D is the distance from the lighthouse to the horizon in nautical miles, the lighthouse range . Where dangerous shoals are located far off a flat sandy beach, the prototypical tall masonry coastal lighthouse is constructed to assist the navigator making a landfall after an ocean crossing. Often these are cylindrical to reduce the effect of wind on a tall structure, such as Cape May Light . Smaller versions of this design are often used as harbor lights to mark
2236-622: The Florida Reef along the Florida Keys, beginning with the Carysfort Reef Light in 1852. In waters too deep for a conventional structure, a lightship might be used instead of a lighthouse, such as the former lightship Columbia . Most of these have now been replaced by fixed light platforms (such as Ambrose Light ) similar to those used for offshore oil exploration . Aligning two fixed points on land provides
2322-466: The 20th century. These often have a narrow cylindrical core surrounded by an open lattice work bracing, such as Finns Point Range Light . Sometimes a lighthouse needs to be constructed in the water itself. Wave-washed lighthouses are masonry structures constructed to withstand water impact, such as Eddystone Lighthouse in Britain and the St. George Reef Light of California. In shallower bays, Screw-pile lighthouse ironwork structures are screwed into
2408-591: The Blessing of the River, the Lighted Boat Parade, and a Classic Boat Parade. The festival's name was a nod to similarities between St. Joseph and Venice, Italy . In 1987, USS Oliver Hazard Perry came to port, and its commander let festival-goers take a free tour. This initiated a tradition whereby US Navy ships regularly came to the festival. Music also contributed to the festival's success, and
2494-744: The Bluff is held in Lake Bluff Park every year on the weekend after the July 4 weekend. The Concours d'Elegance of Southwest Michigan is held annually on the second Saturday in August. The inaugural show was held in 2005. An invitational fine car show, 75 vintage car owners are asked to show vehicles in St. Joseph's downtown Lake Bluff Park. From 1979 to 2011, St. Joseph was the site of the Venetian Festival, which comprised three traditions:
2580-532: The Lake Michigan shoreline, G & M was forced to merge into Goodrich. Like most other ports along Lake Michigan, St. Joseph saw a huge drop in traffic during the early years of the twentieth century and this was exacerbated by the Great Depression. The route between Chicago and St. Joseph did survive until the 1950s. On January 29, 1870, the Chicago and Michigan Lake Shore Railroad extended
2666-756: The Maud Preston Palenske Public Library at 500 Market Street; the John and Dede Howard Ice Arena at 2414 Willa Drive; the Water Treatment Plant at 1701 Lions Park Drive; and Riverview Cemetery at 2525 Niles Road. The city Water Treatment Plant provides drinking water to the communities of the Lake Michigan Shoreline Water and Sewage Treatment Authority, which serves Lincoln Charter Township , Royalton Township , St. Joseph Charter Township , and
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2752-643: The St. Joseph River at present day St. Joseph was an important point of Amerindian travel and commerce, as it lay along a key water route between the Great Lakes and the Mississippi River . Both the Miami and Potawatomi used this route and would use the area as a camp. The St. Joseph River also allowed for connection with the Sauk Trail , which was the major land trail through Michigan. In 1669,
2838-466: The Swiss scientist Aimé Argand revolutionized lighthouse illumination with its steady smokeless flame. Early models used ground glass which was sometimes tinted around the wick. Later models used a mantle of thorium dioxide suspended over the flame, creating a bright, steady light. The Argand lamp used whale oil , colza , olive oil or other vegetable oil as fuel, supplied by a gravity feed from
2924-405: The United Kingdom and Ireland about a third of lighthouses had been converted from filament light sources to use LEDs, and conversion continued with about three per year. The light sources are designed to replicate the colour and character of the traditional light as closely as possible. The change is often not noticed by people in the region, but sometimes a proposed change leads to calls to preserve
3010-495: The added advantage of allowing some of the energy of the waves to dissipate on impact with the walls. His lighthouse was the prototype for the modern lighthouse and influenced all subsequent engineers. One such influence was Robert Stevenson , himself a seminal figure in the development of lighthouse design and construction. His greatest achievement was the construction of the Bell Rock Lighthouse in 1810, one of
3096-405: The average family size was 2.77. In the city, the population was spread out, with 19.0% under the age of 18, 9.5% from 18 to 24, 30.6% from 25 to 44, 22.7% from 45 to 64, and 18.2% who were 65 years of age or older. The median age was 39 years. For every 100 females, there were 96.0 males. For every 100 females age 18 and over, there were 92.9 males. The median income for a household in the city
3182-491: The beam was too narrow to be seen easily. In any of these designs an observer, rather than seeing a continuous weak light, sees a brighter light during short time intervals. These instants of bright light are arranged to create a light characteristic or pattern specific to a lighthouse. For example, the Scheveningen Lighthouse flashes are alternately 2.5 and 7.5 seconds. Some lights have sectors of
3268-406: The choice of light sources, mountings, reflector design, the use of Fresnel lenses , and in rotation and shuttering systems providing lighthouses with individual signatures allowing them to be identified by seafarers. He also invented the movable jib and the balance-crane as a necessary part for lighthouse construction. Alexander Mitchell designed the first screw-pile lighthouse – his lighthouse
3354-577: The city was 48.8% male and 51.2% female. As of the census of 2000, there were 8,789 people, 4,117 households, and 2,058 families residing in the city. The population density was 2,561.3 inhabitants per square mile (988.9/km ). There were 4,594 housing units at an average density of 1,338.8 per square mile (516.9/km ). The racial makeup of the city was 90.31% White , 5.11% African American , 0.41% Native American , 2.39% Asian , 0.02% Pacific Islander , 0.46% from other races , and 1.31% from two or more races. Hispanic or Latino of any race were 1.29% of
3440-419: The city was 88.1% White , 5.3% African American , 0.3% Native American , 3.4% Asian , 0.9% from other races , and 1.9% from two or more races. Hispanic or Latino of any race were 2.8% of the population. There were 3,933 households, of which 20.6% had children under the age of 18 living with them, 37.5% were married couples living together, 8.9% had a female householder with no husband present, 2.9% had
3526-533: The collapse of the Soviet government in 1990s, most of the official records on the locations, and condition, of these lighthouses were reportedly lost. Over time, the condition of RTGs in Russia degraded; many of them fell victim to vandalism and scrap metal thieves, who may not have been aware of the dangerous radioactive contents. Energy-efficient LED lights can be powered by solar panels , with batteries instead of
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3612-488: The construction of lenses of large aperture and short focal length , without the mass and volume of material that would be required by a lens of conventional design. A Fresnel lens can be made much thinner than a comparable conventional lens, in some cases taking the form of a flat sheet. A Fresnel lens can also capture more oblique light from a light source, thus allowing the light from a lighthouse equipped with one to be visible over greater distances. The first Fresnel lens
3698-625: The development of the lighthouse. In antiquity, the lighthouse functioned more as an entrance marker to ports than as a warning signal for reefs and promontories , unlike many modern lighthouses. The most famous lighthouse structure from antiquity was the Pharos of Alexandria , Egypt , which collapsed following a series of earthquakes between 956 and 1323. The intact Tower of Hercules at A Coruña , Spain gives insight into ancient lighthouse construction; other evidence about lighthouses exists in depictions on coins and mosaics, of which many represent
3784-473: The emitted light into a concentrated beam, thereby greatly increasing the light's visibility. The ability to focus the light led to the first revolving lighthouse beams, where the light would appear to the mariners as a series of intermittent flashes. It also became possible to transmit complex signals using the light flashes. French physicist and engineer Augustin-Jean Fresnel developed the multi-part Fresnel lens for use in lighthouses. His design allowed for
3870-475: The entrance into a harbor, such as New London Harbor Light . Where a tall cliff exists, a smaller structure may be placed on top such as at Horton Point Light . Sometimes, such a location can be too high, for example along the west coast of the United States, where frequent low clouds can obscure the light. In these cases, lighthouses are placed below the clifftop to ensure that they can still be seen at
3956-662: The festival generated around $ 1.7 million in revenue to the local economy. Competitions also took place along Silver Beach and the Saint Joseph River during the festival, including volleyball tournaments, a river run & walk, and sand sculpturing. The Lighted Boat Parade and the Classic Boat Display both took place along the St. Joseph River and were a part of the Venetian Festival since 1987. Fireworks and rides were also attractions, bringing people from bigger cities such as Chicago . A blessing of
4042-560: The former Pere Marquette Railroad. Passenger Rail Service is provided by Amtrak's "Pere Marquette" service running from Chicago, IL to Grand Rapids,MI with stops in St Joeseph, Bangor, Holland, And Grand Rapids. Service is offered with one daily round trip. In 1892, Truscott Boat Manufacturing Co moved to St. Joseph from Grand Rapids. In the early 20th Century, the company was the largest employer in St. Joseph with 700 employees and built 600 wooden boats per year. The company built boats for
4128-585: The government in World War I, struggled during the Depression, was sold in 1940, revived during World War II to build ships for the Navy and went bankrupt in 1948. In 1911, Louis, Emory, and Frederick Upton began a business that produced household washing machines . The business soon became a boom and has continued to grow to this day. In 1929, Upton Machine Company merged with Nineteen Hundred Corp., taking
4214-455: The lantern room where the light operates. The lantern room is the glassed-in housing at the top of a lighthouse tower containing the lamp and lens. Its glass storm panes are supported by metal muntins (glazing bars) running vertically or diagonally. At the top of the lantern room is a stormproof ventilator designed to remove the smoke of the lamps and the heat that builds in the glass enclosure. A lightning rod and grounding system connected to
4300-574: The latter name. The company began marketing a line of appliances known as the "Whirlpool" brand in 1948. Within the next decade, Nineteen Hundred changed its name to Whirlpool. Today, Whirlpool Corporation is the largest manufacturer of major home appliances and maintains a large presence in Benton Harbor and nearby St. Joseph. Whirlpool has its world headquarters in Benton Harbor. In 1891 the Silver Beach Amusement Park
4386-535: The light is concentrated, if needed, by the "lens" or "optic". Power sources for lighthouses in the 20th–21st centuries vary. Originally lit by open fires and later candles, the Argand hollow wick lamp and parabolic reflector were introduced in the late 18th century. Whale oil was also used with wicks as the source of light. Kerosene became popular in the 1870s and electricity and acetylene gas derived on-site from calcium carbide began replacing kerosene around
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#17327760349354472-509: The lighthouse at Ostia . Coins from Alexandria, Ostia, and Laodicea in Syria also exist. The modern era of lighthouses began at the turn of the 18th century, as the number of lighthouses being constructed increased significantly due to much higher levels of transatlantic commerce. Advances in structural engineering and new and efficient lighting equipment allowed for the creation of larger and more powerful lighthouses, including ones exposed to
4558-469: The lighthouse keepers. Efficiently concentrating the light from a large omnidirectional light source requires a very large diameter lens. This would require a very thick and heavy lens if a conventional lens were used. The Fresnel lens (pronounced / f r eɪ ˈ n ɛ l / ) focused 85% of a lamp's light versus the 20% focused with the parabolic reflectors of the time. Its design enabled construction of lenses of large size and short focal length without
4644-470: The luminosity of traditional oil lights. The use of gas as illuminant became widely available with the invention of the Dalén light by Swedish engineer Gustaf Dalén . He used Agamassan (Aga), a substrate , to absorb the gas, allowing the gas to be stored, and hence used, safely. Dalén also invented the ' sun valve ', which automatically regulated the light and turned it off during the daytime. The technology
4730-421: The metal cupola roof provides a safe conduit for any lightning strikes. Immediately beneath the lantern room is usually a Watch Room or Service Room where fuel and other supplies were kept and where the keeper prepared the lanterns for the night and often stood watch. The clockworks (for rotating the lenses) were also located there. On a lighthouse tower, an open platform called the gallery is often located outside
4816-496: The most impressive feats of engineering of the age. This structure was based upon Smeaton's design, but with several improved features, such as the incorporation of rotating lights, alternating between red and white. Stevenson worked for the Northern Lighthouse Board for nearly fifty years during which time he designed and oversaw the construction and later improvement of numerous lighthouses. He innovated in
4902-411: The mouth of the river was seen by European explorers. French explorer René-Robert Cavelier, Sieur de La Salle , built Fort Miami on the bluff overlooking Lake Michigan. In 1678, he waited for the ship Le Griffon , which never returned. Once the ship was deemed lost, La Salle and his men made the first land crossing of the lower peninsula by Europeans. The next permanent white settler in St. Joseph
4988-402: The number of operational lighthouses has declined due to the expense of maintenance and the advent of much cheaper, more sophisticated, and more effective electronic navigational systems. Before the development of clearly defined ports , mariners were guided by fires built on hilltops. Since elevating the fire would improve visibility, placing the fire on a platform became a practice that led to
5074-551: The original name, L aboratory E quipment Co rporation. One of LECO's early products was a combustion analyzer invented by Krasl in 1957 that used crucibles invented by his employee Eugene Bennet. LECO carries out research in many fields of analytical chemistry including protein measurement in foods, sulfur in coal emissions, glow discharge emission in metals, multi-dimensional gas chromatograph mass spectrometry, environmental monitoring , air quality , Metabolomics , and diverse medical and pharmaceutical applications. LECO has been
5160-407: The population. There were 4,117 households, out of which 22.0% had children under the age of 18 living with them, 37.6% were married couples living together, 9.4% had a female householder with no husband present, and 50.0% were non-families. 44.1% of all households were made up of individuals, and 14.3% had someone living alone who was 65 years of age or older. The average household size was 1.99 and
5246-520: The property of the George J. Krasl Trust following George Krasl's death on August 5, 1976. Bob Warren was hired by LECO in 1968 and became its president in 1975. LECO became a worldwide supplier of instruments and metallographic equipment under Warren's management, and one of southwestern Michigan's larger employers. He was succeeded as CEO by his sons upon his retirement in 2016. St. Joseph, Michigan St. Joseph , colloquially known as St. Joe ,
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#17327760349355332-489: The rise in shipping in Benton Harbor and the rise in tourism in St. Joseph, permanent and larger operations began operating out of the ports. The Coast Guard still maintains a station on this site. In 1876 the United States Lifesaving Service built a Lifesaving Station at St Joseph, appointing Joseph Napier as the first stationkeeper. After a bitterly fought political contest, St. Joseph
5418-840: The river was done July 30, and continues as a tradition to this day. Previous year tonnage includes: St. Joseph is served by The Herald-Palladium newspaper, whose offices are in nearby St. Joseph Township , is part of the South Bend/Elkhart television market , and is served by sister radio stations WCSY-FM , WCXT , WIRX , WQYQ , WSJM-FM , and WYTZ as well as some in the South Bend market . 42°05′53″N 86°29′03″W / 42.09806°N 86.48417°W / 42.09806; -86.48417 Lighthouse Lighthouses mark dangerous coastlines, hazardous shoals , reefs , rocks, and safe entries to harbors; they also assist in aerial navigation . Once widely used,
5504-465: The sea. The function of lighthouses was gradually changed from indicating ports to the providing of a visible warning against shipping hazards, such as rocks or reefs. The Eddystone Rocks were a major shipwreck hazard for mariners sailing through the English Channel . The first lighthouse built there was an octagonal wooden structure, anchored by 12 iron stanchions secured in the rock, and
5590-451: The seabed and a low wooden structure is placed above the open framework, such as Thomas Point Shoal Lighthouse . As screw piles can be disrupted by ice, steel caisson lighthouses such as Orient Point Light are used in cold climates. Orient Long Beach Bar Light (Bug Light) is a blend of a screw pile light that was converted to a caisson light because of the threat of ice damage. Skeletal iron towers with screw-pile foundations were built on
5676-554: The siege of Atlanta, designed and built some of the most exotic lighthouses in the most difficult locations on the U.S. Great Lakes . French merchant navy officer Marius Michel Pasha built almost a hundred lighthouses along the coasts of the Ottoman Empire in a period of twenty years after the Crimean War (1853–1856). In a lighthouse, the source of light is called the "lamp" (whether electric or fuelled by oil) and
5762-528: The surface during periods of fog or low clouds, as at Point Reyes Lighthouse . Another example is in San Diego , California : the Old Point Loma lighthouse was too high up and often obscured by fog, so it was replaced in 1891 with a lower lighthouse, New Point Loma lighthouse . As technology advanced, prefabricated skeletal iron or steel structures tended to be used for lighthouses constructed in
5848-599: The third and most famous Eddystone Lighthouse , but some builders are well known for their work in building multiple lighthouses. The Stevenson family ( Robert , Alan , David , Thomas , David Alan , and Charles ) made lighthouse building a three-generation profession in Scotland. Richard Henry Brunton designed and built 26 Japanese lighthouses in Meiji Era Japan, which became known as Brunton's "children". Blind Irishman Alexander Mitchell invented and built
5934-486: The traditional light, including in some cases a rotating beam. A typical LED system designed to fit into the traditional 19th century Fresnel lens enclosure was developed by Trinity House and two other lighthouse authorities and costs about € 20,000, depending on configuration, according to a supplier; it has large fins to dissipate heat. Lifetime of the LED light source is 50,000 to 100,000 hours, compared to about 1,000 hours for
6020-480: The turn of the 20th century. Carbide was promoted by the Dalén light , which automatically lit the lamp at nightfall and extinguished it at dawn. In the second half of the 20th century, many remote lighthouses in Russia (then Soviet Union ) were powered by radioisotope thermoelectric generators (RTGs). These had the advantage of providing power day or night and did not need refuelling or maintenance. However, after
6106-529: The village, then known as Newburyport, named after a coastal city in Massachusetts . Britain was influential in attracting other settlers to the area. Lots sold rapidly and the village flourished. The St. Joseph river mouth was straightened through a channel and piers were added later. The first lighthouse in St. Joseph contends with Chicago's original lighthouse as the first to be built on Lake Michigan. Newburyport changed its name to St. Joseph when it
6192-552: The villages of Shoreham and Stevensville . Wastewater treatment is provided through the Joint Wastewater Treatment Plant, which is jointly owned by the cities of St. Joseph and Benton Harbor, and which also serves the LMSWSTA communities, Benton Charter Township and portions of Sodus Township . St. Joseph is cohost of the annual Blossomtime Festival with Benton Harbor. The Krasl Art Fair on
6278-535: The watch room (called the Main Gallery) or Lantern Room (Lantern Gallery). This was mainly used for cleaning the outside of the windows of the Lantern Room. Lighthouses near to each other that are similar in shape are often painted in a unique pattern so they can easily be recognized during daylight, a marking known as a daymark . The black and white barber pole spiral pattern of Cape Hatteras Lighthouse
6364-643: The weight and volume of material in conventional lens designs. Fresnel lighthouse lenses are ranked by order , a measure of refracting power, with a first order lens being the largest, most powerful and expensive; and a sixth order lens being the smallest. The order is based on the focal length of the lens. A first order lens has the longest focal length, with the sixth being the shortest. Coastal lighthouses generally use first, second, or third order lenses, while harbor lights and beacons use fourth, fifth, or sixth order lenses. Some lighthouses, such as those at Cape Race , Newfoundland, and Makapuu Point , Hawaii, used
6450-399: Was $ 37,032, and the median income for a family was $ 51,328. Males had a median income of $ 36,250 versus $ 26,395 for females. The per capita income for the city was $ 24,949. About 4.3% of families and 6.6% of the population were below the poverty line, including 6.1% of those under age 18 and 6.3% of those age 65 or over. City government is organized as a council-manager government . There is
6536-471: Was William Burnett, who around 1780 started a trading post at the mouth of the St. Joseph River. The post traded food, furs and goods with places including Detroit, Mackinac and Chicago. In 1829, Calvin Britain , who had come from Jefferson County, New York , and had taught at the Carey Mission at Niles for two years, came to the site of St. Joseph. Shortly thereafter, he laid out the plat of
6622-437: Was a kerosene lamp or, earlier, an animal or vegetable oil Argand lamp, and the lenses rotated by a weight driven clockwork assembly wound by lighthouse keepers, sometimes as often as every two hours. The lens assembly sometimes floated in liquid mercury to reduce friction. In more modern lighthouses, electric lights and motor drives were used, generally powered by diesel electric generators. These also supplied electricity for
6708-459: Was built by Henry Winstanley from 1696 to 1698. His lighthouse was the first tower in the world to have been fully exposed to the open sea. The civil engineer John Smeaton rebuilt the lighthouse from 1756 to 1759; his tower marked a major step forward in the design of lighthouses and remained in use until 1877. He modeled the shape of his lighthouse on that of an oak tree , using granite blocks. He rediscovered and used " hydraulic lime ",
6794-683: Was built on piles that were screwed into the sandy or muddy seabed. Construction of his design began in 1838 at the mouth of the Thames and was known as the Maplin Sands lighthouse, and first lit in 1841. Although its construction began later, the Wyre Light in Fleetwood, Lancashire, was the first to be lit (in 1840). Until 1782 the source of illumination had generally been wood pyres or burning coal. The Argand lamp , invented in 1782 by
6880-783: Was called the Chase Through the Clouds, which was replaced by the Velvet roller coaster (renamed the Comet). Among the most popular attractions were the carousel and the Shadowland Ballroom, built in 1927. During the 1960s and 1970s, the buildings decayed and the crowds decreased. Finally, crime in the park led police to shut it down in 1970. According to the United States Census Bureau , the city has
6966-412: Was incorporated on March 7, 1834. The city was incorporated June 5, 1891. The first water route across Lake Michigan between St. Joseph and Chicago began as a mail route in 1825, but service was sporadic until 1842 when Samuel and Eber Ward began a permanent service. That lasted eleven years. Before the rise of large ship companies on Lake Michigan, service was done primarily by owner-operated boats. With
7052-421: Was named the seat of Berrien County in 1894, when Berrien Springs relinquished that status. The three largest towns in the county, Benton Harbor , St. Joseph, and Niles , each wanted to be the county seat, but none had a majority vote. Once St. Joseph and Benton Harbor voters combined their votes, St. Joseph had enough to win. On October 11, 1898, Augustus Moore Herring took one of his gliders , fitted with
7138-702: Was offered at three locations: the Bluff , Shadowland Pavilion , and the Main Stage. Many local musicians played at the Bluff and the Pavilion, while the Main Stage hosted such well-known bands as the Beach Boys , Cheap Trick , Gin Blossoms , Little Big Town , and Jason Michael Carroll . In a study done by Michigan State University in 1998, approximately 63,000 people attended the 1997 Venetian Festival and
7224-401: Was opened on land between the lake and mouth of the river in St. Joseph. Logan Drake and Louis Wallace bought the land from the Pere Marquette Railroad and added cottages to lure tourists to the lake front. As the park aged and grew in popularity, the pair added many attractions, including concessions, games, pool, a boardwalk and different rides. The first roller coaster was built in 1904 and
7310-506: Was the predominant light source in lighthouses from the 1900s to the 1960s, when electric lighting had become dominant. With the development of the steady illumination of the Argand lamp, the application of optical lenses to increase and focus the light intensity became a practical possibility. William Hutchinson developed the first practical optical system in 1777, known as a catoptric system. This rudimentary system effectively collimated
7396-598: Was used in 1823 in the Cordouan lighthouse at the mouth of the Gironde estuary ; its light could be seen from more than 20 miles (32 km) out. Fresnel's invention increased the luminosity of the lighthouse lamp by a factor of four and his system is still in common use. The introduction of electrification and automatic lamp changers began to make lighthouse keepers obsolete. For many years, lighthouses still had keepers, partly because lighthouse keepers could serve as
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