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Wooden dandy horse (around 1820), a patent-infringing copy of the first two-wheeler Original Laufmaschine of 1817 made to measure.. The dandy horse, an English nickname for what was first called a Laufmaschine ("running machine" in German), then a vélocipède or draisienne (in French and then English), and then a pedestrian curricle or hobby-horse, [1] or swiftwalker, [2] is a human-powered ...
He also invented two four-wheeled human powered vehicles (1813/1814), the second of which he presented in Vienna to the congress carving up Europe after Napoleon's defeat. [6] In 1842, he developed a foot-driven human powered railway vehicle whose name " draisine " is used even today for railway handcars.
Drais invented his Laufmaschine (German for "running machine") in 1817, that was called Draisine (English) or draisienne (French) by the press. Karl von Drais patented this design in 1818, which was the first commercially successful two-wheeled, steerable, human-propelled machine, commonly called a velocipede , and nicknamed hobby-horse or ...
A wooden balance bike. A balance bike (or run bike) is a bicycle without pedals that learners propel by pushing their feet against the ground. [1] By allowing children to focus on developing their sense of balance and coordination before introducing pedalling, balance bikes enable independent riding more quickly than training wheels.
The construction of the boneshaker was similar to the dandy horse: wooden wheels with iron tires and a framework of wrought iron. As the name implies it was extremely uncomfortable, but the discomfort was somewhat ameliorated by a long flat spring that supported the saddle and absorbed some of the shocks from rough road surfaces.
A comprehensive search for Lee Family papers, which are widely scattered, is ongoing. Since October 2014, the Lee Family Digital Archive has been hosted by Stratford Hall , which was built by Thomas Lee and where Robert E. Lee was born. Dr. Colin Woodward, a historian of the Civil War era and the U.S. South, is the Editor of the Lee Family ...
The Robert E. Lee won the race. [191] The steamboat inspired the 1912 song Waiting for the Robert E. Lee by Lewis F. Muir and L. Wolfe Gilbert. [192] In more modern times, the USS Robert E. Lee, a George Washington-class submarine built in 1958, was named for Lee, [193] as was the M3 Lee tank, produced in 1941 and 1942.
Claude Shannon (1916–2016), founder of information theory and modern cryptography, invented Minivac 601, and co-invented the first wearable computer (with Edward O. Thorp) Ugo Cerletti (1877–1963), together with Lucio Bini (1908–1964), Italy – Electroconvulsive therapy; Leona Chalmers (c. 1937), U.S. – modern menstrual cup