The noise that is thunder is created when the air around
lightning gets rapidly heated and expands at a rate faster than the speed of sound.
Rather than putting on weight from eating celery you actually
lose it, you burn more calories from the chewing
than you put on from the food itself.
Sound travels 4 times faster in water than it does through
air.
Cranberries can be tested for ripeness by bouncing them; if
they are ripe they should have a bouncing quality.
Travelling at 80 kilometres per hour, a car uses half its
fuel to overcome wind resistance.
The largest living structure on Earth is the Great Barrier Reef . Found in Australia , it is over 2000 kilometres long.
The QWERTY keyboard layout used on most computers was
invented way back in the 1860's.
Some types of bamboo can grow nearly a meter a day!
Diamonds are the hardest known
substance.
Light from the sun can reach
a depth of 80 meters in the ocean.
When you crack a whip, it makes a loud noise because the tip
is actually moving faster then the speed of sound!
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