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.
Normal development of posture and spinal curves. (A) Toddler: Protruding abdomen; lumbar lordosis. (
Keep Calm and Do Science
International Performance in Reading, Math, and Science, Eight Grade
Sigmund Freud (1856–1939). Austrian doctor who founded the psychoanalytic school of psychology. ...
Under what conditions can the transition to middle school be associated with declines in grades and ...
High school students shopping at the mall