Brainstuff
BrainStuff
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HD
How Stealth Technology Work
Shaping an airplane a certain way -- or using materials ...
Shaping an airplane a certain way -- or using materials that absorb radar waves -- causes a stealth aircraft to have the signature of a small bird, rather than an airplane.
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HD
How Starting A Car in Cold Weather Works
Cars are hard to start during cold weather for three ...
Cars are hard to start during cold weather for three reasons: gasoline evaporates less in cold temperatures, oil gets thicker in the cold, and the chemical reactions in cold batteries are slower than normal.
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HD
How Boogers and Mucuous Membranes Work
Mucous contains mostly water and mucin -- a branched polysaccharide. ...
Mucous contains mostly water and mucin -- a branched polysaccharide. When polysaccharides such as mucin or cornstarch are mixed with water, the result is a sticky substance.
