Search results
Results from the WOW.Com Content Network
It involves the passengers sitting in front of the wheel and being balanced by a heavy counterweight inside the wheel. Rather than the typical ring drive, this vehicle is powered through a sprocket attached to the spokes. [15] [16] A company in the Netherlands began taking custom orders for a monocycle variant called the Wheelsurf in 2007. [17 ...
The world's first multi-stage unicycle race, Ride the Lobster, took place in Nova Scotia in June 2008. Some 35 teams from 14 countries competed over a total distance of 800 km. [ 42 ] Each team consisted of a maximum of 3 riders and 1 support person.
Jost Bürgi and Antonius Eisenhoit: Armillary sphere with astronomical clock, made in 1585 in Kassel, now at Nordiska Museet in Stockholm. An armillary sphere (variations are known as spherical astrolabe, armilla, or armil) is a model of objects in the sky (on the celestial sphere), consisting of a spherical framework of rings, centered on Earth or the Sun, that represent lines of celestial ...
The discovery of the Composition of Saturn's Rings James Clerk Maxwell (1859): determined the rings of Saturn were composed of numerous small particles, all independently orbiting the planet. At the time it was generally thought the rings were solid. The Maxwell Ringlet and Maxwell Gap were named in his honor. [86]
Mountain unicycling Mountain unicyclist in England (Roseberry Topping) Mountain unicycle with disc brakes (Qu-ax/Kris Holm) Mountain unicycling. Mountain unicycling is an adventure sport that consists of traversing rough terrain on a unicycle. Mountain unicycling (muni) is undertaken on similar terrain to mountain biking.
A universal equinoctial ring dial (sometimes called a ring dial for brevity, although the term is ambiguous), is a portable version of an armillary sundial, [49] or was inspired by the mariner's astrolabe. [50] It was likely invented by William Oughtred around 1600 and became common throughout Europe. [51]
The sun and planet gear is a method of converting reciprocating motion to rotary motion and was used in the first rotative beam engines. It was invented by the Scottish engineer William Murdoch , an employee of Boulton and Watt , but was patented by James Watt in October 1781.
The dictionary definition of velocipede at Wiktionary; Media related to History of the bicycle at Wikimedia Commons; 19th century picture of a Velocipede supposedly outrunning a horse Archived 2011-07-28 at the Wayback Machine; Musée McCord Museum Gallery "A Race on the Ice – Bicycles v. Skates" The Boneshaker. Retrieved 28 June 2010.