If the chemical sodium is dropped into water it will immediately and violently explode.
67
Every day, plants convert sunlight into energy equivalent to six times the entire power consumption of human civilization.
9
Stephen Hawking once tried to find potential time travellers by throwing a party and only sending out invitations after the party.
17
Only 12,000 years ago there was a species closely related to modern humans called Homo floresiensis that had been living on an Indonesian Island. They used fire and rather advanced tools, yet were only about 3 feet tall and weighed around 25kg.
15
MIT has developed a camera that captures the speed of light at a trillion frames per second.
20
One gallon of used motor oil can ruin approximately one million gallons of fresh water!
71
Hot water can freeze faster than cold water.
181