The focusing muscles of the eyes move around 100,000 times a day. To give your leg muscles the same workout, you would need to walk 80km (50 miles) every day.
21
There are so many kinds of apples that if you ate a new one everyday, it would take over 20 years to try them all.
34
Your body is creating and killing about 2.4 million red blood cells per second.
17
It's possible to die from a broken heart; it's called Stress Cardiomyopathy.
165
There is a persistent storm in Venezuela that produces lightning 140 to 160 nights a year, 10 hours per day and up to 280 times per hour and has been going since at least the 16th century.
25
The oldest glowing lightbulb was first switched on in 1901 and lives in fire stations in Livermore, CA. It is known as the Centennial Light.
118