In the 60s, a scientist gave LSD to dolphins in an attempt to teach them English.
17
Hot water can freeze faster than cold water.
181
Kissing actually has the biological purpose of passing on biological information and chemical signals to assess mating possibilities and status.
9
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
Scientists are learning from the 1700-year-old Lycurgus Cup, which changes colour thanks to nano particles.
0
Iron weighs more after it rusts.
16
The bark of an older redwood tree is fireproof.
65