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Author Question: An auxiliary fuel tank for a helicopter is shaped like the surface generated by revolving the curve ... (Read 65 times) |
The average office desk has 400 times more bacteria on it than a toilet.
As the western states of America were settled, pioneers often had to drink rancid water from ponds and other sources. This often resulted in chronic diarrhea, causing many cases of dehydration and death that could have been avoided if clean water had been available.
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.
If you could remove all of your skin, it would weigh up to 5 pounds.
Most childhood vaccines are 90–99% effective in preventing disease. Side effects are rarely serious.