1. If humans were capable of hearing bass frequencies lower than 20 Hz, we would be able to hear our own muscles moving.

2. Humans share 50% of our DNA with a banana.

3. Twenty five per cent of all of your bones are in your feet.

4. The average person walks the equivalent of three times around the world in a lifetime.

5. The average lavatory seat is much cleaner than the aver­age toothbrush. That’s because your teeth are home to around 10,000 million bacteria per square cm.

6. Mosquitoes have killed more humans than all the wars in history combined.

7. Cats have more than one hundred vocal sounds, while dogs have only about 10.

8. If you drilled a tunnel straight through the Earth and jumped in, it would take you 42 minutes 12 seconds to get to the other side.

9. Light travels 18 million times faster than rain.

10. If the Sun was scaled down to the size of a white blood cell, the Milky Way galaxy would be the size of the United States.

11. There are more living organisms in a teaspoonful of soil than there are people alive on Earth.

12. Japan has a network of roads that play music as you drive over them.

13. The world’s smallest test tube has a diameter 10,000 times narrower than a human hair.

14. A single bolt of lightning contains enough energy to cook 100,000 pieces of toast.
Technology
15. The first computer mouse was made of wood.

16. In 2011, a 75-year-old Georgian woman stole some fibre optic cables and cut off the internet to two entire countries.

17. The words written on Twitter every day would fill a book of 10 million pages.

18. The technology behind smartphones relies on up to 250,000 separate patents.

19. A typical microwave oven uses more electricity keeping its digital clock on standby than it does heating food.
Engineering
20. The Eiffel Tower’s height varies by up to six inches with the temperature.

21. Work at the 2012 Olympic Park took 700 million hours by 30,000-plus building workers and engineers.

22. The first ever text message said “Merry Christmas”.

23. Machines as long as two football pitches moving at 76 m a day took 3 years to drill the Channel Tunnel.

24. Sherman Poppen glued two skis together to make a “snurfer”, the first snowboard, in 1965.

25. Engineers have made bionic hands controllable by an iPhone app.

26. A nightingale’s song can be louder than a chainsaw.

27. Aircraft engines suck in 1.25 tons of air per second on take-off – that’s about the volume of a squash court.

28. The hollow bit in the middle of a brick is called a “frog”.
Maths
29. The average pencil writes 45,000 words or a 35 - mile long line.

30. Going to work is statistically three times more dangerous than war.

31. It is most likely to be raining at 7 AM and least likely at 3 AM.

32. Google was named after “googol” (one with 100 zeros) was mistyped.

33. The “Arabic” numbering system was actually invented in India.

34. You are 1% shorter in the evening than in the morning.

35. 2520 is the smallest number that can be exactly divided by all the numbers 1 to 10.

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