The banana plant cannot reproduce itself. It can be propagated only by the hand of man.
155
The most expensive material on the planet is antimatter - worth $62.5 trillion per gram.
18
No matter how cold it gets, gasoline will not freeze.
107
A ball of glass will bounce higher than a ball made of rubber.
73
Out of all the senses, smell is most closely linked to memory.
146
Sound travels about 4 times faster in water than in air.
408
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