Stephen Hawking once tried to find potential time travellers by throwing a party and only sending out invitations after the party.
17
Forensic scientists can determine a person's sex, age, and race by examining a single strand of hair.
101
MIT has developed a camera that captures the speed of light at a trillion frames per second.
20
Iron weighs more after it rusts.
16
It takes a photon 170,000 years to travel from the core of the Sun to the surface, but only 8 minutes to travel the rest of the way to Earth.
6
In the 60s, a scientist gave LSD to dolphins in an attempt to teach them English.
17
Most dust particles in your house come from dead skin.
48
One ragweed plant can release as many as one billion grains of pollen!
51