Cows can sleep standing up, but they can only dream lying down.
745
Scientists at the Zhejiang University in China have developed an ultra-light material known as carbon aerogel.
3
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
The 409 escalators in the London subway cover a distance every week which is approximately equivalent to several trips around the globe!
94
Your thumb is about the same size as your nose.
124