electronic cross point
121Atomic orbital — The shapes of the first five atomic orbitals: 1s, 2s, 2px, 2py, and 2pz. The colors show the wave function phase. These are graphs of ψ(x,y,z) functions which depend on the coordinates of one electron. To see the elongated shape of ψ(x,y,z)2… …
122Disc brake — Close up of a disc brake on a car On automobiles, disc brakes are often located with …
123Bombing of Dresden in World War II — Dresden after the bombing raid The Bombing of Dresden was a military bombing by the British Royal Air Force (RAF) and the United States Army Air Force (USAAF) and as part of the Allied forces between 13 February and 15 Febr …
124Electric motor — For other kinds of motors, see motor (disambiguation). For a railroad electric engine, see electric locomotive. Various electric motors. A 9 volt PP3 transistor battery is in the center foreground for size comparison. An electric motor converts… …
125Flow measurement — is the quantification of bulk fluid movement. Flow can be measured in a variety of ways. Positive displacement flow meters acumulate a fixed volume of fluid and then count the number of times the volume is filled to measure flow. Other flow… …
126E-democracy — Part of the Politics series Politics List of political topics Politics by country …
127List of devices used by Doctor Doom — This article lists devices used by the Doctor Doom, a fictional supervillain of the Marvel Comics universe and enemy of the Fantastic Four. Over the course of his appearances, Doom has used over 100 devices, many of which he also invented.… …
128List of Chinese inventions — A bronze Chinese crossbow mechanism with a buttplate (the wooden components have …
