Iron weighs more after it rusts.
16
All Humans Are 99.9% Genetically Identical and 98.4% of human genes are the same as the genes of a chimpanzee.
51
Nylon is made from coal and petroleum.
42
Forensic scientists can determine a person's sex, age, and race by examining a single strand of hair.
101
Every day, plants convert sunlight into energy equivalent to six times the entire power consumption of human civilization.
9
The force of a suction cup is calculated using F=AP.
15
One cubic foot of gold weighs more than 1,200 pounds!
78
Stephen Hawking once tried to find potential time travellers by throwing a party and only sending out invitations after the party.
17