2006-12-06 19:46:32 · 19 answers · asked by jason 1 in Science & Mathematics ➔ Earth Sciences & Geology
Close enough.
Yes, the equatorial diameter is slightly larger than the polar diameter. But if you blew the best cue ball in billiards to the size of the Earth, it's would be far less spherical than the Earth and have far larger surface irregularities (Mountains on a cue ball the size of Earth would be about 10x's higher than Everest).
So yes, for all intents and purposes, it's round.
2006-12-06 20:06:32 · answer #1 · answered by ZenPenguin 7 · 2⤊ 0⤋
Yes. This has been known since antiquity, when the earth's shadow fell on the moon during a lunar eclipse. Around 250 BC, Eratosthenes, curator of the great library at Alexandria, measured the earth's size using a method that is still valid today. The earth is slightly flattened -- the diameter pole to pole is a bit less than the equatorial diameter. The presently accepted values are:
Polar radius -- 6356752.314 meters.
Equatorial radius -- 6378137.000 meters.
2006-12-07 03:54:29 · answer #2 · answered by Anonymous · 2⤊ 0⤋
Depends what you mean by 'world'. Earth is round-ish.
2006-12-07 03:54:56 · answer #3 · answered by Nikkers 6 · 0⤊ 1⤋
Not round but oval shaped as an egg.
2006-12-07 03:59:51 · answer #4 · answered by Ismail Eliat 6 · 0⤊ 2⤋
It used to be flat. Then someone sailed around it and found out it IS round.
Same reason why you find globes in the classroom .
2006-12-07 04:08:13 · answer #5 · answered by Understated statement 2 · 0⤊ 0⤋
yes there is no doubt .according to earth's dimensions it is approximaitely round.
2006-12-07 06:52:58 · answer #6 · answered by amit g 1 · 0⤊ 0⤋
do u mean the earth?
then,no,the earth isn't an actual sphere
it bulges out slightly at the equators
2006-12-07 05:17:59 · answer #7 · answered by silverwater92 2 · 0⤊ 0⤋
yes it is. the real shape would be like if you were to get a rubber ball and squeeze it.. the north and south poles are almost flat.
2006-12-07 03:51:35 · answer #8 · answered by V 1 · 0⤊ 1⤋
It's like a football
2006-12-07 03:55:08 · answer #9 · answered by Gangsteer 3 · 0⤊ 2⤋
not really round, spherical i would say
2006-12-07 09:29:51 · answer #10 · answered by firefly 5 · 0⤊ 0⤋