In Arizona, a solar wind energy tower has been proposed that would generate as much energy as the Hoover Dam.
5
The only letter not appearing on the Periodic Table is the letter "J".
180
Optical illusions occur when what the eyes see conflicts with what the brain expects.
75
Iron weighs more after it rusts.
68
When you walk down a steep hill, the pressure on your knees is equal to three times your body weight.
199
There is a surgical implant being developed that will give you an orgasm at the touch of a button.
20