A cubic yard of air weighs about 2 pounds at sea level.
31
Brass doorknobs automatically disinfect themselves in about 8 hours.
18
For a high school science fair project, 17-year-old Michio Kaku built a particle accelerator in his parent's garage that was able to generate a magnetic field 20,000 times greater than the Earth's and produce collisions powerful enough to create antimatter.
34
Some toothpastes and deodorants contain the same chemicals found in antifreeze.
38
A cesium atom in an atomic clock beats over nine billion times a second.
43
The storage capacity of human brain exceeds 4 Terrabytes.
140
The average temperature at 40,000 feet above sea level is -60 F.
56