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Did you know?

The heart is located in the center of the chest, with part of it tipped slightly so that it taps against the left side of the chest.

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The horizontal fraction bar was introduced by the Arabs.

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Addicts to opiates often avoid treatment because they are afraid of withdrawal. Though unpleasant, with proper management, withdrawal is rarely fatal and passes relatively quickly.

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Urine turns bright yellow if larger than normal amounts of certain substances are consumed; one of these substances is asparagus.

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All patients with hyperparathyroidism will develop osteoporosis. The parathyroid glands maintain blood calcium within the normal range. All patients with this disease will continue to lose calcium from their bones every day, and there is no way to prevent the development of osteoporosis as a result.

Neuronal action potential. Neuronal action potential.
Detonation is a secondary ignition of the air–fuel mixture. It is also called spark knock or ... Detonation is a secondary ignition of the air–fuel mixture. It is also called spark knock or ...
The pumping action of an impeller or rotary vane pump. The pumping action of an impeller or rotary vane pump.
The Emergency Action Guide entry for styrene. Useful information includes emergency response ... The Emergency Action Guide entry for styrene. Useful information includes emergency response ...
Action of penicillinase Action of penicillinase
Comparison of the action spectrum and the absorption spectrum Comparison of the action spectrum and the absorption spectrum
Video: Photosynthesis overview Animation

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