Pure water (H2O) does not conduct electricity on its own.
46
One barrel of petroleum holds 42 gallons.
20
Stephen Hawking once tried to find potential time travellers by throwing a party and only sending out invitations after the party.
17
Iron weighs more after it rusts.
68
In Arizona, a solar wind energy tower has been proposed that would generate as much energy as the Hoover Dam.
5
One third of the electricity produced on earth is used to power electric light bulbs!
75
Scientists at the Zhejiang University in China have developed an ultra-light material known as carbon aerogel.
3