Speed of glass cracks
When glass breaks, the cracks move at speeds of up to 3,000 miles per hour.
More Miscellaneous Facts
When withdrawing money from an ATM, the 'whirring' sound before your money pops out is actually a recording. The actual mechanism is so far back that you can't hear it.
It is impossible to hum if your nose is plugged.
Donkeys kill more people annually than plane crashes.