Every day, plants convert sunlight into energy equivalent to six times the entire power consumption of human civilization.
9
Iron weighs more after it rusts.
68
Cold water weighs more than hot water.
93
The bark of an older redwood tree is fireproof.
65
A cubic yard of air weighs about 2 pounds at sea level.
31
Indoor pollution is 10 times more toxic than outdoor pollution.
62
The storage capacity of human brain exceeds 4 Terrabytes.
140
The left ear is more responsive to words of love and emotion whispered into it than the right.
40