If the chemical sodium is dropped into water it will immediately and violently explode.
67
Airports that are at higher altitudes require a longer airstrip due to lower air density.
39
Every day, plants convert sunlight into energy equivalent to six times the entire power consumption of human civilization.
9
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
The left ear is more responsive to words of love and emotion whispered into it than the right.
40
For a high school science fair project, 17-year-old Michio Kaku built a particle accelerator in his parent's garage that was able to generate a magnetic field 20,000 times greater than the Earth's and produce collisions powerful enough to create antimatter.
34
A 'jiffy' is an actual unit of time for 1/100th of a second!
66
The brain case [of Neanderthals] on the average was more than 13 percent larger than that of the average of modern man
61