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John Augustus Roebling (born Johann August Röbling; June 12, 1806 – July 22, 1869) was a German-born American civil engineer. [1] He designed and built wire rope suspension bridges, in particular the Brooklyn Bridge, which has been designated as a National Historic Landmark and a National Historic Civil Engineering Landmark.
Rope may be constructed of any long, stringy, fibrous material (e.g., rattan, a natural material), but generally is constructed of certain natural or synthetic fibres. [1] [2] [3] Synthetic fibre ropes are significantly stronger than their natural fibre counterparts, they have a higher tensile strength, they are more resistant to rotting than ropes created from natural fibres, and they can be ...
Although the banana as an exotic fruit was introduced to the American public in the 1880s, it was later in 1904, that the banana split was invented in the town of Latrobe, Pennsylvania, by 23-year-old pharmacy apprentice David Strickler, who was inspired to create a new sundae after seeing a soda jerk during a visit to Atlantic City.
Grain elevators are buildings or complexes of buildings for storage and shipment of grain. They were invented in 1842 in Buffalo, New York, by Joseph Dart, who first developed a steam-powered mechanism, called a marine leg, for scooping grain out of the hulls of ships directly into storage silos. [87] 1843 Ice cream maker (hand-cranked)
Modern wire rope was invented by the German mining engineer Wilhelm Albert in the years between 1831 and 1834 for use in mining in the Harz Mountains in Clausthal, Lower Saxony, Germany. [3] [4] [5] It was quickly accepted because it proved superior strength from ropes made of hemp or of metal chains, such as had been used before. [6]
In many areas of medicine, like cardiology and diabetes management, competition has been transformative, says Diane Alexander, a health economist at the University of Pennsylvania.
2004: First podcast, invented by Adam Curry and Dave Winer, is a program made available in digital format for download over the Internet and it usually features one or more recurring hosts engaged in a discussion about a particular topic or current event. [543] [544] [545] 2005: YouTube, the first popular video-streaming site, was founded
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