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
Mars had an oxygen-rich atmosphere around 4 billion years ago
13
You forget 90% of your dreams.
256
Your thumb is about the same size as your nose.
124