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A house actually exploded in San Diego, California because a family used too many bug bombs and an accidental spark ignited the chemicals in the air, as the MythBusters were able to prove in their test, although it took dozens of bug bombs to produce only a small explosion.
The visible water surface in a toilet is the top of the trap's water seal. Each fixture drain, with exceptions, must be vented so that negative air pressure in the drain cannot siphon the trap dry, to prevent positive air pressure in the sewer from forcing gases past the water seal, and to prevent explosive sewer gas buildup.
A Med-E-Jet vaccination gun from 1980. A jet injector, also known as a jet gun injector, air gun, or pneumatic injector, is a medical instrument that uses a high-pressure jet of liquid medication to penetrate the skin and deliver medication under the skin without a needle. Jet injectors can be single-dose or multi-dose.
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Due to the nature of the bladder, the stream produced is fairly constant, and has almost the same range and power throughout the entire shot, most streams dropping only one foot in range towards the end of a continuous shot, unlike most air pressure based water guns which exhibit a constant loss of pressure while the trigger is pulled.
This air gun was to fill the gap between the "BB" gun and the .22 caliber. A successful prototype was produced mid-1944 and in 1945, in partnership with I.R. "Bob" Kraus, Sheridan Products Inc. was born in Racine, Wisconsin . [ 1 ]
The Crosman Pumpmaster 760, or Crosman 760 Pumpmaster, is an American-made multi-pump pneumatic air gun that is manufactured for target shooting, plinking, and small pest control. The Crosman 760 Pumpmaster is a BB gun with more than 16 million copies sold. It has a caliber of .177 and can shoot up to 645 fps for BBs and 615 for Pellets.
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