Did you know?
The first-known contraceptive was crocodile dung, used in Egypt in 2000 BC. Condoms were also reportedly used, made of animal bladders or intestines.
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.
The Pleiades, an open cluster of stars in the constellation of Taurus. These stars share a common mo
Booker T. Washington in his office at Tuskegee Institute, 1900. Washington chose a policy of accommo
Sumatran Tiger Fewer than 400, Indonesia and Texas Ocelot Fewer than 250, southern United States, ...
Jet streams and Earth’s heat budget
Sample budget spreadsheet form for first year of business.
How many carboxylic acids and esters share the molecular formula C2H4O2?