The force of a suction cup is calculated using F=AP.
15
German chemists made a replica of a trophy the size of one molecule.
68
Because heat expands the metal, the Eiffel Tower always leans away from the sun.
79
One gallon of used motor oil can ruin approximately one million gallons of fresh water!
71
Scientists are learning from the 1700-year-old Lycurgus Cup, which changes colour thanks to nano particles.
0
In zero gravity, a candle's flame is round and blue.
16