area of wetted surface
41printmaking — /print may king/, n. the art or technique of making prints, esp. as practiced in engraving, etching, drypoint, woodcut or serigraphy. [1925 30; PRINT + MAKING] * * * Art form consisting of the production of images, usually on paper but… …
42Nanoarchitectures for lithium-ion batteries — Efforts in lithium ion batteries research have been to improve two distinct characteristics: capacity and rate. The capacity of the battery to store energy can be improved through the ability to insert/extract more lithium ions from the electrode …
43Solar thermal energy — Solar thermal system for water heating in Santorini, Greece …
44Auto race workers — are essential to more enjoyable, more efficient, and safer auto racing. Without their dedication and skills, racing would not be possible. This is an important point: a person does not need to be a driver to become involved in racing. Ask around; …
45Valve — This article is about the flow control device. For the game developer, see Valve Corporation. For the electronic component, see Vacuum tube. For other uses, see Valve (disambiguation). These water valves are operated by handles. A valve is a… …
46iceberg — /uys berrg/, n. 1. a large floating mass of ice, detached from a glacier and carried out to sea. 2. Informal. an emotionally cold person. 3. Australian Informal. a person who swims or surfs regularly in winter. 4. tip of the iceberg, the first… …
47Sailing hydrofoil — A sailing hydrofoil or hydrosail is a sailboat with wing like foils mounted under the hull. As the craft increases its speed the hydrofoils lift the hull up and out of the water, greatly reducing wetted area, resulting in decreased drag and… …
48Geophysical MASINT — is a branch of Measurement and Signature Intelligence (MASINT) that involves phenomena transmitted through the earth (ground, water, atmosphere) and manmade structures including emitted or reflected sounds, pressure waves, vibrations, and… …
49Rocket engine — RS 68 being tested at NASA s Stennis Space Center. The nearly transparent exhaust is due to this engine s exhaust being mostly superheated steam (water vapor from its propellants, hydrogen and oxygen) …
50MythBusters (2009 season) — Country of origin Australia United States No. of episodes 23 (includes 3 specials) Broadcast Original channel …
