Did you know?
Vaccines cause herd immunity. If the majority of people in a community have been vaccinated against a disease, an unvaccinated person is less likely to get the disease since others are less likely to become sick from it and spread the disease.
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.
In this 1900 cartoon, oil baron John D. Rockefeller holds the White House in the palm of his hand wh
A farmer with a pitchfork, wearing a hat identifying him as a Granger, warns of an oncoming “Consoli
Alexander the Great, head from a Pergamene copy.
Patterns of North American Religion
John Muir (right) with President Roosevelt at Yosemite National Park
How much energy is needed to heat 77.0g H2O(s) from -10.0 C to 0.0 C?