When glass breaks, the cracks move at speeds of up to 3,000 miles per hour.
423
In an average hour, there are over 61,000 Americans airborne over the United States.
24
The symbol on the 'pound' key (#) is called an octothorpe.
82
At 90 degrees below zero, your breath will freeze in mid-air and fall to the ground.
24
The 409 escalators in the London subway cover a distance every week which is approximately equivalent to several trips around the globe!
94
If you have 1 billion dollars and spend $1,000 every day, it would take you 2,740 years to go broke.
31
The harder you concentrate on falling asleep, the less likely you are to fall asleep.
34
The best time for a person to buy shoes is in the afternoon. This is because the foot tends to swell a bit around this time.
49