Research indicates that plants grow healthier when they are stroked.
173
If the chemical sodium is dropped into water it will immediately and violently explode.
67
In zero gravity, a candle's flame is round and blue.
16
Nearly 50% of the world's scientists are assigned to military projects.
71
Oak trees produce 2,200 acorns in a season, but each acorn only has a 1 in 10,000 chance of becoming an oak tree.
304
Scientists are learning from the 1700-year-old Lycurgus Cup, which changes colour thanks to nano particles.
0
The average home creates more pollution than does the average car.
33