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Running is a gait with an aerial phase in which all feet are above the ground (though there are exceptions). [1] This is in contrast to walking, where one foot is always in contact with the ground, the legs are kept mostly straight, and the center of gravity vaults over the stance leg or legs in an inverted pendulum fashion. [2]
Adam Smith begins to deliver public lectures in Edinburgh.; Henry Fielding organises the forerunner of the Bow Street Runners, with eight men at first. [3]John Fothergill's pamphlet Account of the Sore Throat attended with Ulcers contains the first description of diphtheria.
1748 was a leap year starting on Monday of the Gregorian calendar and a leap year starting on Friday of the Julian calendar, the 1748th year of the Common Era (CE) and Anno Domini (AD) designations, the 748th year of the 2nd millennium, the 48th year of the 18th century, and the 9th year of the 1740s decade. As of the start of 1748, the ...
For a jump from standing, one foot is positioned forward and one foot back. The weights are swung up and down until the jumper jumps in conjunction with an upswing. The long jump could also be performed without weights, and with a running start. [8] Vertical jumps as high as possible.
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.
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 ...
The year 1748 in science and technology involved some significant events. Archaeology. Rediscovery of the ruins of Pompeii. [1] Chemistry.
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. [545] [546] [547] 2005: YouTube, the first popular video-streaming site, was founded