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Human stomach acid is strong enough to dissolve small pieces of metal such as razor blades or staples.
The heart is located in the center of the chest, with part of it tipped slightly so that it taps against the left side of the chest.
Coca-Cola originally used coca leaves and caffeine from the African kola nut. It was advertised as a therapeutic agent and "pickerupper." Eventually, its formulation was changed, and the coca leaves were removed because of the effects of regulation on cocaine-related products.
The term bacteria was devised in the 19th century by German biologist Ferdinand Cohn. He based it on the Greek word "bakterion" meaning a small rod or staff. Cohn is considered to be the father of modern bacteriology.
More than 34,000 trademarked medication names and more than 10,000 generic medication names are in use in the United States.