A cesium atom in an atomic clock beats over nine billion times a second.
43
The left ear is more responsive to words of love and emotion whispered into it than the right.
40
Sound travels about 4 times faster in water than in air.
408
The bark of an older redwood tree is fireproof.
65
Stephen Hawking once tried to find potential time travellers by throwing a party and only sending out invitations after the party.
17
The use of emoticons affects our corresponding brain areas and can actually trigger emotions.
21
Balsa wood is classified as a hard wood!
41
During photosynthesis, plants emit light humans can’t see, but NASA can see that light from space - and they've even made maps of it!
21