bumi BUKAN BULAT | Cik Siti

Sunday, 10 June 2012

bumi BUKAN BULAT







bulat kecil bulat kecil bulatan besar.....

korang tau tak, bumi BUKAN BULAT???
abes apa?? empat segi?? tiga segi???
nehi nehi nehi.....
bentuk bumi lebih kurang macam bentuk buah pear......

Earth is not exactly round; it is slightly pear-shaped. The North Pole radius is 1.73 inch (44mm) longer than the South Pole radius.
Plates carrying the continents migrate over the earth’s surface a few inches per year, about the same speed that a fingernail grows. Which also is about the speed at which the moon is moving away from earth; the moon is moving away at 1-and-a-half inches (3,8cm) per year. The reason probably being that earth is rotating ever slower – 1.4 milliseconds per century slower, some sources calculate 3 milliseconds per century – meaning less gravitational pull on the moon.
Earth is also moving away from the sun at 5.9 inches (15cm) per year.


See: Did you know that earth is not completely round? 
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