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
Cellophane is not made of plastic. It is made from a plant fiber, cellulose, which has been shredded and aged.
44
Optical illusions occur when what the eyes see conflicts with what the brain expects.
75
Nearly 50% of the world's scientists are assigned to military projects.
71
Sound at the right vibration can bore holes through a solid object.
134
The smell of freshly cut grass is actually a plant distress call.
31
