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
Sound at the right vibration can bore holes through a solid object.
134
Forensic scientists can determine a person's sex, age, and race by examining a single strand of hair.
101
In zero gravity, a candle's flame is round and blue.
16
A single cup of gasoline, when ignited, has the same explosive power as five sticks of dynamite.
57
Billions of neutrinos pass unnoticed through your body every second.
6
A ball of glass will bounce higher than a ball made of rubber.
73
4.5 pounds of sunlight strike the Earth each day.
27