Your body is creating and killing about 2.4 million red blood cells per second.
17
Scientists at the Zhejiang University in China have developed an ultra-light material known as carbon aerogel.
3
The University of Oxford (teaching since 1096) predates the Aztec empire (1428 - 1521).
14
Your thumb is about the same size as your nose.
124
Cows can sleep standing up, but they can only dream lying down.
745
The oldest stone tools found are dated from 2.7 - 2.9 million years ago. The species that made these tools is unknown.
13
In 2011, archaeologists discovered the skeletal remains of a Roman couple who have been holding hands for 1,500 years.
81