Minggu, 12 Desember 2010

DID U KNOW

Every day, a coral grows a new band of limestone on its skeleton. Its rate of growth is affected by the seasons, the moon and the tides. 

The first motorcycle was designed and built by the firm of Michaux-Perreaux in France in 1869. It ran on steam. The first petrol-driven motorcycle was designed in 1885 by Gottlieb Daimler. Its top speed was 19 kmph (12 mph). Compare this with the 512 kmph (318.6 mph) of the fastest modern bike.

The pink colouring of flamingos depends on the food they eat. In the wild, they filter shrimps and algae from water. In captivity, they are often fed on carrot juice to prevent their feathers fading ot dull grey.

A nova (meaning "new star") is a star that suddenly flares up to be many times brighter than it is. A really brilliant nova may have been a star which could hardly be seen even with a large telescope. As a nova it becomes visible to the naked eye, but gradually fades again.

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