Some toothpastes and deodorants contain the same chemicals found in antifreeze.
38
Airports that are at higher altitudes require a longer airstrip due to lower air density.
39
Balsa wood is classified as a hard wood!
41
The brain case [of Neanderthals] on the average was more than 13 percent larger than that of the average of modern man
61
Most liquid laundry detergents are alive with living organisms that help to break down stains!
88
The force of a suction cup is calculated using F=AP.
15
Aluminum used to be more valuable than gold!
84
In Arizona, a solar wind energy tower has been proposed that would generate as much energy as the Hoover Dam.
5