One cubic foot of gold weighs more than 1,200 pounds!
78
In zero gravity, a candle's flame is round and blue.
16
Every day, plants convert sunlight into energy equivalent to six times the entire power consumption of human civilization.
9
Scientists have revived a flowering plant from a fruit stored away in permafrost by Arctic ground squirrel 32,000 years ago.
16
A coal power station puts 100 times more radiation into the air than a nuclear power plant producing the same amount of energy.
7
According to studies, men change their minds two to three times more often than women.
72
Nearly 50% of the world's scientists are assigned to military projects.
71
No matter how cold it gets, gasoline will not freeze.
107