1. The only fresh foods that astronauts are allowed to take into space are pecan nuts.
2. There are ten human body parts that are only three letters long;
3. The daily heat output of the average man would boil 30 litres of freezing water.
4. By 70 years old an average person will have shed 105 pounds of skin.
5. It takes 17 muscles to smile and 43 to frown so keep smiling it saves energy.
6. Canned food was invented for the British Navy in 1813, but the first can opener wasn’t invented until 1870.
7. Large doses of coffee can be lethal. Ten grams, or 100 cups over 4 hours, is enough to kill the average human.
8. Most lipstick contains fish scales.
9. The average person walks the equivalent of twice around the world in a lifetime.
10. Our eyes are always the same size from birth, but our noses and ears never stop growing.
11. All the planets in the solar system spin anticlockwise except Venus, which spins the other way.
12. To make one kilo of honey, bees have to visit four million flowers, traveling a distance equal to four times around the Earth.
13. Approximately two thirds of a person’s bodyweight is water.
14. If all your DNA strands were stretched out they would reach the moon 6000 times.
15. Telephone inventor Alexandra Graham Bell never phoned his wife or mother because they were both deaf.
16. If a cockroach were human sized it could run a mile in 20 seconds.
17. Skydivers accelerate to terminal velocity of 120 mph.
18. The first electronic digital computer weighed 30 tons.
19. Concorde holds two world speed records for commercial flights.
20. Ocean waves can travel as fast as a jet aeroplane.
via elanso