Did you know?
The modern decimal position system was the invention of the Hindus (around 800 AD), involving the placing of numerals to indicate their value (units, tens, hundreds, and so on).
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.
Lampreys (sometimes also called lamprey eels) are a family of jawless fish
Man undergoing a stress test on a treadmill while physician monitors his condition
Diphtheria. The bacteria that cause this disease, called Corynebacterium diphtheriae, proliferate in
Photograph of the flea that transmits Yersinia pestis to cause bubonic plague, called the oriental r
Children with disabilities used to be sent to special schools. In a process called mainstreaming or ...
Material safety data sheets (MSDS), now called safety data sheets (SDS), should be readily available ...