How much solar energy goes into evaporation?
One-third of the solar energy reaching the Earth is used in evaporating water; about 95,000 cubic miles each year. This is equivalent to 30 lakes the size of Lake Superior.
How shy was Henry?
Henry Cavendish, one of the great scientists of the 1700s, was painfully shy and could barely speak to one person – never to two. He was so timid in the presence of women that he communicated with his female servants by notes only. If one crossed his path in his house, she was fired on the spot. He built a separate entrance to the house so that he could come and go without meeting anyone. In the end, he insisted on dying alone.
What is a popular component to clean clothes?
In many countries, urine was used as a detergent for washing. One of urine's major components, ammonia, is used in cleaning products.
How common are foot problems?
About 75 percent of Americans will have foot problems of one sort or another at some time in their lives.
Who came up with milk chocolate?
The early eating bars of chocolate were made of bittersweet chocolate. Milk chocolate was introduced in 1875 when Henry Nestle, a maker of evaporated milk and Daniel Peter, a chocolate maker, got together and invented milk chocolate, which today is preferred by 80% of the world's population.
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