vacuum buoy
1Newcomen steam engine — Animation of a schematic Newcomen steam engine. – Steam is shown pink and water is blue. – Valves move from open (green) to closed (red) The atmospheric engine invented by Thomas Newcomen in 1712, today referred to as a Newcomen steam engine (or… …
2List of problems solved by MacGyver — This is a list of problems that have been solved by the fictional character MacGyver from the television series of the same name. (This list is not yet comprehensive.) MacGyver employs his resourcefulness and his knowledge of chemistry,… …
3lighthouse — /luyt hows /, n., pl. lighthouses / how ziz/. 1. a tower or other structure displaying or flashing a very bright light for the guidance of ships in avoiding dangerous areas, in following certain routes, etc. 2. either of two cylindrical metal… …
4cosmos — /koz meuhs, mohs/, n., pl. cosmos, cosmoses for 2, 4. 1. the world or universe regarded as an orderly, harmonious system. 2. a complete, orderly, harmonious system. 3. order; harmony. 4. any composite plant of the genus Cosmos, of tropical… …
5Snipe hunt — Common snipe A snipe hunt, a form of wild goose chase that is also known as a fool s errand, is a type of practical joke that involves experienced people making fun of credulous newcomers by giving them an impossible or imaginary task. The origin …
6Mooring (watercraft) — A dockworker places a mooring line on a bollard. A vessel is said to be moored when it is fastened to a fixed object such as a bollard, pier, quay or the seabed, or to a floating object such as an anchor buoy. Mooring is often accomplished using… …
7Rocket — This article is about vehicles powered by rocket engines. For other uses, see Rocket (disambiguation). A Soyuz U, at Baikonur Site 1/5 A rocket is a missile, spacecraft, aircraft or other vehicle which obtains thrust from a rocket engi …
8Russian submarine Kursk explosion — On August 12, 2000, the Russian Oscar II class submarine, Kursk sank in the Barents Sea. The generally accepted theory is that a leak of hydrogen peroxide in the forward torpedo room led to the detonation of a torpedo warhead, which in turn… …
9Decompression sickness — Caisson disease [decompression sickness] Classification and external resources Two United States Navy sailors prepare for training inside a decompression chamber …
10Buoyancy — The forces at work in buoyancy In physics, buoyancy (  / …
