Iron weighs more after it rusts.
16
Diamonds can be shattered with a hammer.
-104
Scientists are attempting to create a synthetic brain by reverse-engineering the mammalian brain down to the molecular level. A cellular human brain is predicted possible by 2023. It hopes to shed light on consciousness.
10
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
Pure water (H2O) does not conduct electricity on its own.
46
A ball of glass will bounce higher than a ball made of rubber.
73