Some toothpastes and deodorants contain the same chemicals found in antifreeze.
38
Because heat expands the metal, the Eiffel Tower always leans away from the sun.
79
Sound travels about 4 times faster in water than in air.
408
The weight of a carat (200 milligrams), standard unit of measurement for gemstones, is based on the weight of the carob seed.
51
Scientists in Germany have developed a candy that doesn't cause cavities.
11
The brain case [of Neanderthals] on the average was more than 13 percent larger than that of the average of modern man
61
No matter how cold it gets, gasoline will not freeze.
107
In Arizona, a solar wind energy tower has been proposed that would generate as much energy as the Hoover Dam.
5