Because heat expands the metal, the Eiffel Tower always leans away from the sun.
79
At room temperature, the average air molecule travels at the speed of a rifle bullet.
55
Brass doorknobs automatically disinfect themselves in about 8 hours.
18
The force of a suction cup is calculated using F=AP.
15
One gallon of used motor oil can ruin approximately one million gallons of fresh water!
71
In Arizona, a solar wind energy tower has been proposed that would generate as much energy as the Hoover Dam.
5
The storage capacity of human brain exceeds 4 Terrabytes.
140
One ragweed plant can release as many as one billion grains of pollen!
51