The smell of freshly cut grass is actually a plant distress call.
31
Sound travels fifteen times faster through steel than through air.
134
A cesium atom in an atomic clock beats over nine billion times a second.
43
Pure water (H2O) does not conduct electricity on its own.
46
Your brain is 80% water.
525
Galalith is a type of plastic that can be made from milk. It is odourless, insoluble in water, biodegradable, anti-allergenic, antistatic, and virtually non-flammable.
1
If the chemical sodium is dropped into water it will immediately and violently explode.
67
Scientists are learning from the 1700-year-old Lycurgus Cup, which changes colour thanks to nano particles.
0