When glass breaks, the cracks move faster than 3,000 miles per hour. To photograph the event, a camera must shoot at a millionth of a second!
114
In Georgia, there is an airtight room called the Crypt of Civilization that was sealed in 1940. It contains numerous artefacts documenting what life was like at the time of sealing, and is scheduled to be opened in the year 8113 to show people of the future exactly what life was like.
13
Harvard earns enough money from interest on its endowment that it could offer free tuition to every student and still profit.
13
If you took a standard slinky and stretched it out it would measure 87 feet.
52
The symbol on the 'pound' key (#) is called an octothorpe.
82
No piece of square dry paper can be folded more than 7 times in half!
26
There is a fake village with fake shops and restaurants that is actually a care home for elderly dementia sufferers in the Netherlands.
7