Scientists at the Zhejiang University in China have developed an ultra-light material known as carbon aerogel.
3
Forensic scientists can determine a person's sex, age, and race by examining a single strand of hair.
101
A single speck of dust is half way in size between a subatomic particle and the Earth.
15
The Earth's atmosphere weighs about 5.5 quadrillion tons.
108
Brass doorknobs automatically disinfect themselves in about 8 hours.
18
A 'jiffy' is an actual unit of time for 1/100th of a second!
66
Stephen Hawking once tried to find potential time travellers by throwing a party and only sending out invitations after the party.
17
Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
118