Sound travels about 4 times faster in water than in air.
408
Because heat expands the metal, the Eiffel Tower always leans away from the sun.
79
The Manchineel Tree is so poisonous, rainwater dripping off it’s leaves will burn your skin.
17
Termites are being researched as a possible renewable energy source as they can produce up to 2 litres of hydrogen from ingesting a single sheet of paper, making them one of the planet’s most efficient bioreactors.
24
The left ear is more responsive to words of love and emotion whispered into it than the right.
40
The brain case [of Neanderthals] on the average was more than 13 percent larger than that of the average of modern man
61
Your brain is 80% water.
525
Stannous fluoride, which is the cavity fighter found in toothpaste is made from recycled tin.
65