Discovered in 1930, Pluto was long considered our solar system’s ninth planet. But after the discovery of similar intriguing worlds deeper in the distant Kuiper Belt, icy Pluto was reclassified as a dwarf planet. This new class of worlds may offer some of the best evidence about the origins of our solar system. Although ...
Blog
Bolts are for the assembly of two unthreaded components, with the aid of a nut. Screws in contrast are used with components, at least one of which contains its own internal thread, which even may be formed by the installation of the screw itself. Many threaded fasteners can be described as either screws or bolts ...
Since the bicycle was invented, scientists have postulated various reasons as to why a bicycle is self stable above a certain speed. The consensus has been that a bicycle’s stability is related to two factors: First, the rotating wheels of the bicycle provide stability through gyroscopic effects. Secondly, that the ‘trail’ plays an important ...
On April 26, 1986, the world’s worst nuclear accident to date occurs at the Chernobyl nuclear plant near Kiev in Ukraine.
The Chernobyl station was situated at the settlement of Pripyat, about 65 miles north of Kiev in the Ukraine. Built in the late 1970s on the banks of the Pripyat River, Chernobyl had ...
On January 5, 1933, construction begins on the Golden Gate Bridge, as workers began excavating 3.25 million cubic feet of dirt for the structure’s huge anchorages. Four years later, on opening day (May 27, 1937) 200,000 bridge walkers marveled at the 4,200-foot-long suspension bridge, which spans the Golden Gate Strait at ...
The hovercraft was invented by Christopher Cockerell in 1956. The theory behind one of the most successful inventions of the 20th century, the Hovercraft, was originally tested in 1955 using an empty KiteKat cat food tin inside a coffee tin, an industrial air blower and a pair of kitchen scales. Sir Christopher Cockerell developed the ...
Osmosis (and Not Ozzmosis dear metalhead) is the spontaneous net movement of solvent molecules through a semi-permeable membrane into a region of higher solute concentration, in the direction that tends to equalize the solute concentrations on the two sides. It may also be used to describe a physical process in which any solvent moves across ...
In fluid mechanics, the Reynolds number (Re) is a dimensionless quantity that is used to help predict similar flow patterns in different fluid flow situations. The concept was introduced by George Gabriel Stokes in 1851, but the Reynolds number is named after Osborne Reynolds (and not Ryan Reynolds), who popularized its use in 1883. Well ...
A sonic boom is the sound associated with the shock waves created by an object traveling through the air faster than the speed of sound. Also, it’s Guile’s signature special attack in Street Fighter (hold away – Towards + Punch).
The most known sonic boom, is the one that Supersonic Aircrafts produce. When the aircraft ...
Wind is the movement of air from an area of high pressure to an area of low pressure. In fact, wind exists because the sun unevenly heats the surface of the Earth. As hot air rises, cooler air moves in to fill the void. As long as the sun shines, the wind will blow. And ...