Did you know?
Barbituric acid, the base material of barbiturates, was first synthesized in 1863 by Adolph von Bayer. His company later went on to synthesize aspirin for the first time, and Bayer aspirin is still a popular brand today.
Did you know?
Tobacco depletes the body of vitamins A, C, and E, which can result in any of the following: dry hair, dry skin, dry eyes, poor growth, night blindness, abscesses, insomnia, fatigue, reproductive system problems, sinusitis, pneumonia, frequent respiratory problems, skin disorders, weight loss, rickets, osteomalacia, nervousness, muscle spasms, leg cramps, extremity numbness, bone malformations, decayed teeth, difficulty in walking, irritability, restlessness, profuse sweating, increased uric acid (gout), joint damage, damaged red blood cells, destruction of nerves, infertility, miscarriage, and many types of cancer.
Bay (left) and chestnut (sometimes called "sorrel") are two of the most common coat colors
Reindeer antlers grow again each year under a layer of fur called velvet. This reindeer is losing th
Arthroscopic surgery. In this illustration, the knee joint is undergoing surgery with a specialized
Luna Park at Coney Island was a vast living theater in which strollers were both spectators and acto
Herbert Spencer (1820–1903), sometimes called the second founder of sociology, coined the term ...
A resonance tube, called a Helmholtz resonator, is used on the intake duct between the air filter ...