Scientists have revived a flowering plant from a fruit stored away in permafrost by Arctic ground squirrel 32,000 years ago.
16
Brass doorknobs automatically disinfect themselves in about 8 hours.
18
Optical illusions occur when what the eyes see conflicts with what the brain expects.
75
A cesium atom in an atomic clock beats over nine billion times a second.
43
One ragweed plant can release as many as one billion grains of pollen!
51
The storage capacity of human brain exceeds 4 Terrabytes.
140
A single speck of dust is half way in size between a subatomic particle and the Earth.
15