Hydrogen is an explosive gas. Oxygen supports combustion. Yet when these are combined it is water which is used to put out fires. See more

You use over 70 muscles to say one word. See more

The thumbnail grows the slowest; the middle nail grows the fastest. See more

The highest publicly reported amount of money paid for a domain name is $7.5 million! Paid for business.com. See more

All the chemicals in the human body have a combined value of approximately £4.00. See more

The light from your computer screen streams at you at almost 186,000 miles a second. See more

The microwave was invented after a researcher walked by a radar tube and a chocolate bar melted in his pocket. See more

We know more about the surface of the moon than we do about the bottom of the ocean. See more

It takes a plastic container 50,000 years to start decomposing. See more

The heart beats about 100,000 times each day. See more

Plants that are not cared for will cry for help, a thirsty plant will make a high-pitched sound that is too high for us to hear. See more

The right lung is slightly larger than the left. See more

Banging your head against a wall uses 150 calories an hour. See more

Your skin weighs about 3.2 kg. See more

Rain falls at 11 km/h. See more

Zero point energy is a source of energy which is released when atoms stop moving, at -273 Celcius. See more