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Perpetual motion , perpetual motion the motion of a hypothetical machine which, once activated, would run forever unless subject to an external force or to wear; althou… Sewing Machine , Background
Before 1900, women spent many of their daylight hours sewing clothes for themselves and their families by hand. Women also formed the majo… Gear , gear / gi(ə)r/ • n. 1. (often gears) one of a set of toothed wheels that work together to alter the relation between the speed of a driving mechanism… pallet , pal·let1 / ˈpalit/ • n. a straw mattress. ∎ a crude or makeshift bed. pal·let2 • n. 1. a portable platform on which goods can be moved, stacked, and… Coffman, Edward M. , cog •agog, befog, blog, bog, clog, cog, dog, flog, fog, frog, grog, hog, Hogg, hotdog, jog, log, nog, prog, slog, smog, snog, sprog, tautog, tog, tro… Motion Sickness , Definition
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