The smell of freshly cut grass is actually a plant distress call.
31
Scientists at the Zhejiang University in China have developed an ultra-light material known as carbon aerogel.
3
It takes a photon 170,000 years to travel from the core of the Sun to the surface, but only 8 minutes to travel the rest of the way to Earth.
6
In Arizona, a solar wind energy tower has been proposed that would generate as much energy as the Hoover Dam.
5
Research indicates that plants grow healthier when they are stroked.
173
Stephen Hawking once tried to find potential time travellers by throwing a party and only sending out invitations after the party.
17
Cold water weighs more than hot water.
93