Facts 10/11/05: Science Works, Melbourne
*Our body has 600 muscles and 230 joints. Our hand has 27 bones while our face has 14.
*There is 100 m of nerves in a human brain, sending message at 400 km/h!
*Do you know that we have over 100,000 km of veins, arteries and capillaries in our body?
*We shed 20 kg of skin in a lifetime. An adult is covered by 2 square meter of skin.
*Do you know that lung is the only organ that could float?
*Esophagus muscles move downwards. Therefore food would go to stomach even though we stand upside down.
*Do you know that our mouth produces 1.7 kg of saliva a day? And that we eat 500 kg of food a year!
*It needs 40 kilojoules to make a toast… that is the energy we need to climb a 40-storey building!
*Pedaling creates electricity. One person pedaling hard creates 80-120 watts, which could light up one light globe.
*During cycling at 20 kph, half of our power goes into overcoming wind resistance.
*We get more colds in winter because we are indoors and in close proximity more often. In this way germs can transfer more easily.
*Australia has one of the highest skin cancer incidents in the world with 2 cases in every 3 person in a lifetime.
*Record weight of a human birth is almost 13 kg. Average birth is 3-4 kg.
*Toothbrush handle was first made of cow bone and its brush from cow hair! Deluxe version used hog hair until nylon took over in 1938.
*A cockroach could survive up to 10 days without its head! This is because most of its nervous system is held in its body.
*Ostriches have eyes 2 inches across… and each is heavier than its brain!
*American president Theodore “Teddy” Roosevelt went on a hunting trip but refused to shoot a baby bear. A toy maker honoured the event in 1902 by making a toy “teddy” bear for his shop window.
*The inner core of the world is approximately 7200 degree Celsius.
*Jupiter is so BIG it can fit eight other planets in it!