The smell of freshly cut grass is actually a plant distress call.
31
No matter how cold it gets, gasoline will not freeze.
107
The storage capacity of human brain exceeds 4 Terrabytes.
140
Cold water weighs more than hot water.
93
Because heat expands the metal, the Eiffel Tower always leans away from the sun.
79
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