The hair of an adult man or woman can stretch 25 percent of its length without breaking.
116
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
Airports that are at higher altitudes require a longer airstrip due to lower air density.
39
The most expensive material on the planet is antimatter - worth $62.5 trillion per gram.
18
The brain case [of Neanderthals] on the average was more than 13 percent larger than that of the average of modern man
61
Stephen Hawking once tried to find potential time travellers by throwing a party and only sending out invitations after the party.
17
Some toothpastes and deodorants contain the same chemicals found in antifreeze.
38