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Lego Serenity
(6 votes, average: 4.67 out of 5) (Log in to vote!)
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How To Brush Your Teeth Like A Spartan
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Atkinson Cycle
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The original Atkinson-cycle piston engine allows the intake, compression, power, and exhaust strokes of the four-stroke cycle to occur in a single turn of the crankshaft and was designed to bypass patents covering the existing Otto cycle engines.[1] Due to the unique crankshaft design of the Atkinson, the expansion ratio may differ from the compression ratio. By adjusting the linkage to allow a power stroke that is longer than the compression stroke, the engine can achieve greater efficiency than with the Otto cycle engine. While Atkinson’s original engine design is no more than a historical curiosity, the Atkinson cycle, where the power stroke is longer than the compression stroke, is increasing in popularity due to the increase in fuel economy it provides.
Figure:
The ideal Atkinson cycle consists of following operations:
1) Isentropic or reversible adiabatic compression (that is, compression with no transfer of heat).
2) Addition of heat at constant volume.
3) Isentropic expansion.
4) Rejection of heat at constant pressure.
en.wikipedia.org/wiki/Atkinson_cycle
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TikiWiki
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Tiki refers to large wood and stone carvings of humanoid forms in Central Eastern Polynesian cultures of the Pacific Ocean. The term is also used as it relates to MÄori mythology where Tiki is the first man.
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WABIAN-2
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peek a boob
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Care Bears in San Francisco
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“A whole rainbow of bears: Leather bear, handcuff bondage bear (with “Daddy” tattoo), piggy bear, pink gay power fist bear (with black bandanna – maybe he’s bash back bear?), pink triangle bear, Lady Bunny drag queen bear (looks like ze has tribal tattoos also.) Great details, anonymous artist! On Folsom Street near 8th in San Francisco.”
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Moon race landers
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LK (Lunniy Korabl—”lunar craft”): www.astronautix.com/craft/lk.htm
Apollo LM: www.astronautix.com/craft/apollolm.htm
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