The smell of freshly cut grass is actually a plant distress call.
31
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
Nearly 50% of the world's scientists are assigned to military projects.
71
A coal power station puts 100 times more radiation into the air than a nuclear power plant producing the same amount of energy.
7
In zero gravity, a candle's flame is round and blue.
16
German scientists claim to have evidence that suggests that our universe may exist inside of a computer simulated Matrix.
18