The most expensive material on the planet is antimatter - worth $62.5 trillion per gram.
18
The use of emoticons affects our corresponding brain areas and can actually trigger emotions.
21
Because heat expands the metal, the Eiffel Tower always leans away from the sun.
79
4.5 pounds of sunlight strike the Earth each day.
27
The left ear is more responsive to words of love and emotion whispered into it than the right.
40
0.3% of solar energy from the Sahara is enough to power the whole of Europe.
310
Termites are being researched as a possible renewable energy source as they can produce up to 2 litres of hydrogen from ingesting a single sheet of paper, making them one of the planet’s most efficient bioreactors.
24
Stephen Hawking once tried to find potential time travellers by throwing a party and only sending out invitations after the party.
17