During the twentieth century, a variant of the metric system was used in Russia and France in which the base unit of mass was the tonne. Instead of kilograms, this system used millitonnes (mt).
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The longest a person has survived after a heart transplant is 24 years.
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According to the CDC, approximately 31.7% of the U.S. population has high low-density lipoprotein (LDL) or "bad cholesterol" levels.
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In 1864, the first barbiturate (barbituric acid) was synthesized.
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The first-known contraceptive was crocodile dung, used in Egypt in 2000 BC. Condoms were also reportedly used, made of animal bladders or intestines.
Electrocardiography. (a) Electrodes are placed on the patient’s chest to record the electrical event
Vinyl record
Monkeys and apes such as this chimpanzee can be recognized in the fossil record by the anatomy of th
Record from a Polygraph
Electron microscope video of a needle on a vinyl record
The most common drug used to facilitate date rape is alcohol, not GHB.