The horizontal fraction bar was introduced by the Arabs.
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Not getting enough sleep can greatly weaken the immune system. Lack of sleep makes you more likely to catch a cold, or more difficult to fight off an infection.
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In 1844, Charles Goodyear obtained the first patent for a rubber condom.
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Eat fiber! A diet high in fiber can help lower cholesterol levels by as much as 10%.
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People often find it difficult to accept the idea that bacteria can be beneficial and improve health. Lactic acid bacteria are good, and when eaten, these bacteria improve health and increase longevity. These bacteria included in foods such as yogurt.
Schematic of typical animal cell depicting the various organelles and structures.
A typical joint.
A typical injector-pump-type automotive diesel fuel injection system.
A cutaway of a typical water pump showing the long bearing assembly and the seal. The weep hole is ...
A typical oil pressure sending unit on a Ford V-8.
Wiring diagram of a typical Ford electronic ignition.