Forensic scientists can determine a person's sex, age, and race by examining a single strand of hair.
101
Because heat expands the metal, the Eiffel Tower always leans away from the sun.
79
Scientists have revived a flowering plant from a fruit stored away in permafrost by Arctic ground squirrel 32,000 years ago.
16
Stephen Hawking once tried to find potential time travellers by throwing a party and only sending out invitations after the party.
17
Scientists aren't sure what color dinosaurs were.
312
There is a surgical implant being developed that will give you an orgasm at the touch of a button.
20
In zero gravity, a candle's flame is round and blue.
16
The average home creates more pollution than does the average car.
33