When glass breaks, the cracks move at speeds of up to 3,000 miles per hour.
423
"Big Ben" in London isn't a tower, the bell inside the tower is called "Big Ben", the tower itself is called "The Elizabeth Tower".
18
You can hear the blood flowing through your ears if you find a quiet place and cover them tightly.
17
The majority of suicides occur on a Monday.
393
The human eye blinks an average of 4,200,000 times a year.
233
The number of text messages sent and received in a given day is greater than the world's population.
198
Only 8% of the world’s currency is physical money. The rest exists only on computers.
20
Your fingernails grow faster in summer.
744