return stroke drive
1Reactionless drive — A reactionless drive (also known by many other names, such as an inertial propulsion engine, reactionless thruster, reactionless engine, bootstrap drive or inertia drive) is a fictional or theorized method of propulsion where thrust is generated… …
2Lightning — This article is about the atmospheric electrical phenomenon. For other uses, see Lightning (disambiguation). See also: Lightning strike Lightning striking Atlanta, United States Lightning is an atmospheric electrostatic discharge (spar …
3Stirling engine — Alpha type Stirling engine. There are two cylinders. The expansion cylinder (red) is maintained at a high temperature while the compression cylinder (blue) is cooled. The passage between the two cylinders contains the regenerator …
4De Rivaz engine — Model of de Rivaz 1807 prototype internal combustion engine driven automobile. Reconstruction by the Conservatoire National des Arts et Métiers. The de Rivaz engine was a pioneering reciprocating engine designed and developed from 1804 by the… …
5Timeline of steam power — See Steam engine, Steam power during the Industrial Revolution. Steam power developed slowly over a period of several hundred years, progressing through expensive and fairly limited devices in the early 1600s, to useful pumps for mining in 1700,… …
6thunder — thunderer, n. thunderless, adj. /thun deuhr/, n. 1. a loud, explosive, resounding noise produced by the explosive expansion of air heated by a lightning discharge. 2. any loud, resounding noise: the thunder of applause. 3. a threatening or… …
7Storm — Windstorm redirects here. For the type of storm in Europe, see European windstorm. For the Gloria Jones album, see Windstorm (album). For other uses, see Storm (disambiguation). A shelf cloud associated with a heavy or severe thunderstorm over… …
8Pinch (plasma physics) — For other uses, see Pinch (disambiguation). Lightning bolts illustrating electromagnetically pinched plasma filaments …
9Table tennis — Ping Pong redirects here. For other uses, see Ping Pong (disambiguation). Table tennis Table tennis at the highest level Highest governing body ITTF Nickname(s) Ping pong …
10performing arts — arts or skills that require public performance, as acting, singing, or dancing. [1945 50] * * * ▪ 2009 Introduction Music Classical. The last vestiges of the Cold War seemed to thaw for a moment on Feb. 26, 2008, when the unfamiliar strains …
