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Alexandre Gustave Eiffel (born Bönickhausen, 15 December 1832 – 27 December 1923) was a French civil engineer and architect. A graduate of the École Centrale des Arts et Manufactures, he made his name with various bridges for the French railway network, most famously the Garabit viaduct.<br/><br/> He is best known for the world-famous Eiffel Tower, built for the 1889 Universal Exposition in Paris, France. After his retirement from engineering, Eiffel concentrated his energies on research into meteorology and aerodynamics, making important contributions in both fields.<br/><br/> Eiffel's best-known works in Asia are the General Post Office in Saigon (1886-1891) and the Truong Tien Bridge in Hue (1897-1899). The iconic Long Bien Bridge across the Red River at Hanoi is frequently misattributed to Eiffel, but was in fact designed and built by the French company Dayde and Pille.
Alexandre Gustave Eiffel (born Bönickhausen, 15 December 1832 – 27 December 1923) was a French civil engineer and architect. A graduate of the École Centrale des Arts et Manufactures, he made his name with various bridges for the French railway network, most famously the Garabit viaduct.<br/><br/> He is best known for the world-famous Eiffel Tower, built for the 1889 Universal Exposition in Paris, France. After his retirement from engineering, Eiffel concentrated his energies on research into meteorology and aerodynamics, making important contributions in both fields.<br/><br/> Eiffel's best-known works in Asia are the General Post Office in Saigon (1886-1891) and the Truong Tien Bridge in Hue (1897-1899). The iconic Long Bien Bridge across the Red River at Hanoi is frequently misattributed to Eiffel, but was in fact designed and built by the French company Dayde and Pille.
Leonhard Euler (15 April 1707 – 18 September 1783) was a Swiss mathematician, physicist, astronomer, logician and engineer who made important and influential discoveries in many branches of mathematics like infinitesimal calculus and graph theory, while also making pioneering contributions to several branches such as topology and analytic number theory. He also introduced much of the modern mathematical terminology and notation, particularly for mathematical analysis, such as the notion of a mathematical function. He is also known for his work in mechanics, fluid dynamics, optics, astronomy, and music theory.<br/><br/> Euler was one of the most eminent mathematicians of the 18th century, and is held to be one of the greatest in history. He is also widely considered to be the most prolific mathematician of all time. His collected works fill 60 to 80 quarto volumes, more than anybody in the field. He spent most of his adult life in St. Petersburg, Russia, and in Berlin, then the capital of Prussia.
Leonhard Euler (15 April 1707 – 18 September 1783) was a Swiss mathematician, physicist, astronomer, logician and engineer who made important and influential discoveries in many branches of mathematics like infinitesimal calculus and graph theory, while also making pioneering contributions to several branches such as topology and analytic number theory. He also introduced much of the modern mathematical terminology and notation, particularly for mathematical analysis, such as the notion of a mathematical function. He is also known for his work in mechanics, fluid dynamics, optics, astronomy, and music theory.<br/><br/> Euler was one of the most eminent mathematicians of the 18th century, and is held to be one of the greatest in history. He is also widely considered to be the most prolific mathematician of all time. His collected works fill 60 to 80 quarto volumes, more than anybody in the field. He spent most of his adult life in St. Petersburg, Russia, and in Berlin, then the capital of Prussia.
The Goteik viaduct (also known as Gohteik and Gokteik viaduct) is a railway trestle in Nawnghkio, western Shan State, Myanmar (also known as Burma). The bridge is between the two towns of Pyin U Lwin, the summer capital of the former British colonial administrators of Burma, and Lashio, the principal town of northern Shan State. It is the highest bridge in Myanmar and when it was completed, the largest railway trestle in the world. The bridge is located approximately 100 km northeast of Mandalay.<br/><br/> The bridge was constructed in 1899 and completed in 1900 by Pennsylvania and Maryland Bridge Construction. The components were made by the Pennsylvania Steel Company, and the parts were shipped from the United States. The rail line was constructed as a way for the British Empire to expand their influence in the region. The construction project was overseen by Sir Arthur Rendel, engineer for the Burma Railroad Company.<br/><br/> The viaduct stretches 689 meters (2,260 feet) from end to end with 15 towers which span 40 feet (12 meters) along with a double tower 24 meters (80 feet) long. The 15 towers support 10 deck truss spans of 37 meters (120 feet) along with six plate girder spans 18 meters (60 feet) long and an approach span of 12 meters (40 feet). Many sources have put the height of the bridge at 250 meters (820 feet). This is supposedly a measurement to the river level as it flows underground through a tunnel at the point it passes underneath the trestle. The true height of the bridge as measured from the rail deck to the ground on the downstream side of the tallest tower is 102 meters (335 feet). The cost of the bridge construction was £111,200 (Pounds sterling).
The River Mekong is the world's 12th-longest river. From its Himalayan source on the Tibetan plateau, it flows some 4,350 km (2,703 miles) through China's Yunnan province, Burma, Laos, Thailand, Cambodia and Vietnam, finally draining in the South China Sea. The recent construction of hydroelectric dams on the river and its tributaries has reduced the water flow dramatically during the dry season in Southeast Asia.
A traditional bridge across the Wenxian River in the badlands of Gansu, c. 1900.
Long Bien Bridge was built in 1903 by the architects of Dayde & Pille, a French company. It is a historic cantilever bridge that spans the Red River, some 2.5 km in length. From 1899 to 1902, more than 3,000 Vietnamese took part in the construction. Before Vietnam's independence in 1954, it was called the Doumer Bridge after Paul Doumer, the Governor-General of French Indochina and then French president. Defence of the bridge played a major role in the Vietnam War against the United States, as the bridge provided the only secure connection to the port of Haiphong. It was heavily bombarded and was rendered unusable for a year when, in May 1972, it fell victim to one of the first coordinated attacks using laser-guided 'smart bombs'. The defense of Long Bien Bridge continues to play a large role in Hanoi’s self-image and is often extolled in poetry and song.
The Perfume River crosses the city of Hue in the central Vietnamese province of Thua Thien Hue. In the autumn, flowers from orchards upriver fall into the water, giving it an aromatic smell—hence the name 'Perfume River'. The Perfume River has two sources, both of which begin in the Day Truong Son mountain range and meet at Bang Lang fork. The 30-km river passes the landmarks of the Hon Chen Temple and the Ngoc Tran Temple.
A remarkable design for a 'Chinoiserie' bridge across the Avon Gorge at Bristol by Sir Isambard Kingdom Brunel, 1829. The Clifton Suspension Bridge was eventually completed in 1864 after Brunel's design, but without the pagoda.
A remarkable design for a 'Chinoiserie' bridge across the Avon Gorge at Bristol by Sir Isambard Kingdom Brunel, 1829. The Clifton Suspension Bridge was eventually completed in 1864 after Brunel's design, but without the pagoda.
Alexandre Gustave Eiffel (born Bönickhausen, 15 December 1832 – 27 December 1923) was a French civil engineer and architect. A graduate of the École Centrale des Arts et Manufactures, he made his name with various bridges for the French railway network, most famously the Garabit viaduct.<br/><br/> He is best known for the world-famous Eiffel Tower, built for the 1889 Universal Exposition in Paris, France. After his retirement from engineering, Eiffel concentrated his energies on research into meteorology and aerodynamics, making important contributions in both fields.<br/><br/> Eiffel's best-known works in Asia are the General Post Office in Saigon (1886-1891) and the Truong Tien Bridge in Hue (1897-1899). The iconic Long Bien Bridge across the Red River at Hanoi is frequently misattributed to Eiffel, but was in fact designed and built by the French company Dayde and Pille.