Billions of neutrinos pass unnoticed through your body every second.
6
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
Neanderthal man had a brain capacity 100cc larger than modern man's.
50
Out of all the senses, smell is most closely linked to memory.
146
At room temperature, the average air molecule travels at the speed of a rifle bullet.
55
4.5 pounds of sunlight strike the Earth each day.
27
The hair of an adult man or woman can stretch 25 percent of its length without breaking.
116
