One barrel of petroleum holds 42 gallons.
20
Scientists are learning from the 1700-year-old Lycurgus Cup, which changes colour thanks to nano particles.
0
German chemists made a replica of a trophy the size of one molecule.
68
Out of all the senses, smell is most closely linked to memory.
146
If the chemical sodium is dropped into water it will immediately and violently explode.
67
Indoor pollution is 10 times more toxic than outdoor pollution.
62
Stephen Hawking once tried to find potential time travellers by throwing a party and only sending out invitations after the party.
17
A 'jiffy' is an actual unit of time for 1/100th of a second!
66