The smell of freshly cut grass is actually a plant distress call.
31
The most expensive material on the planet is antimatter - worth $62.5 trillion per gram.
18
Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
118
Oak trees produce 2,200 acorns in a season, but each acorn only has a 1 in 10,000 chance of becoming an oak tree.
304
The idea of left brain (logical) and right brain (creative) has no basis in neuroscience and is in fact a myth.
16
Diamonds can be shattered with a hammer.
-104
There are more atoms in one teaspoon of water than there are teaspoons of water in the Atlantic Ocean.
13
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