The Earth's atmosphere weighs about 5.5 quadrillion tons.
108
If you blowtorch Pepto-Bismol, you would get a hunk of metal.
114
Sound travels about 4 times faster in water than in air.
408
Neanderthal man had a brain capacity 100cc larger than modern man's.
50
The gas that gives rotten eggs their distinctive foul smell may slow ageing and block damaging chemical reactions inside cells, according to scientists in China.
5
Oak trees produce 2,200 acorns in a season, but each acorn only has a 1 in 10,000 chance of becoming an oak tree.
304
Your brain is 80% water.
525