The strangers in your dreams are actually people that you've seen in real life.
50
Scientists at the Zhejiang University in China have developed an ultra-light material known as carbon aerogel.
3
An unprotected human can survive up to 1.5 minutes in space with no permanent bodily damage.
82
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
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
Your body is creating and killing about 2.4 million red blood cells per second.
17
You forget 90% of your dreams.
256