The horizontal fraction bar was introduced by the Arabs.
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The word drug comes from the Dutch word droog (meaning "dry"). For centuries, most drugs came from dried plants, hence the name.
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The longest a person has survived after a heart transplant is 24 years.
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The first successful kidney transplant was performed in 1954 and occurred in Boston. A kidney from an identical twin was transplanted into his dying brother's body and was not rejected because it did not appear foreign to his body.
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Drying your hands with a paper towel will reduce the bacterial count on your hands by 45–60%.
Lake structure.
Merops orientalis -at Ameenpur lake hyderabad India.
Sleeping study
African dancing mask from Ulivira, Lake Tanganyika.
The two species of cichlids in Lake Apoyo exhibit distinctive morphologies