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#2 (permalink) Fri Apr 30, 2010 19:52 pm Rotation vs revolution |
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Don't you have a dictionary? Type "define: ______" replacing the line with the word you want to find out about into Google. _________________ Cheers m' dears! |
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Beeesneees Language Coach

Joined: 08 Apr 2010 Posts: 20428 Location: UK, born and bred
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#3 (permalink) Sat May 01, 2010 6:25 am Rotation vs revolution |
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| They're still confusing to me because they both indicate movement of circles. |
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Blue_Snow I'm here quite often ;-)

Joined: 22 Apr 2010 Posts: 302 Location: Hanoi, Vietnam
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#4 (permalink) Sat May 01, 2010 6:27 am Rotation vs revolution |
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| Moreover, in my language they're the same. One is Earth moves around its orbit and one is around the Sun. |
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Blue_Snow I'm here quite often ;-)

Joined: 22 Apr 2010 Posts: 302 Location: Hanoi, Vietnam
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#5 (permalink) Sat May 01, 2010 13:43 pm Rotation vs revolution |
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| Their meaning is the same, but revolution is used much less often to describe that kind of movement. Revolution is mainly used to describe an uprising or something that stands up to any kind of established order. |
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BenDover23 You can meet me at english-test.net

Joined: 05 Apr 2010 Posts: 70
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#6 (permalink) Sat May 01, 2010 14:11 pm Rotation vs revolution |
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| Blue_Snow wrote: |
| They're still confusing to me because they both indicate movement of circles. |
Where did you find those words?
TOEIC short conversations: Negotiating the price for a used car |
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Torsten Learning Coach

Joined: 25 Sep 2003 Posts: 15008 Location: EU
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#7 (permalink) Sat May 01, 2010 15:18 pm Rotation vs revolution |
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| Sorry. They're the definitions after being changed by me. I meant they both imply moving around. |
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Blue_Snow I'm here quite often ;-)

Joined: 22 Apr 2010 Posts: 302 Location: Hanoi, Vietnam
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#8 (permalink) Sat May 01, 2010 15:48 pm Rotation vs revolution |
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The best way of learning the meaning of words is to take a look at them in different contexts. Here are some examples that show how the word 'rotation' can be used. Please note that in none of these sentences the 'rotation' could be replaced by 'revolution':
If the incipient spin has progressed for more than about half a turn because the pilot has kept the stick back, applying the full opposite rudder must be a good thing because it helps to stop the rotation and to even up the stalling of the wings.
In this way the rudder is a very powerful influence on the spin recovery because it helps the pitching movement and also slows the rotation.
In the south-east of Scotland a system based on the annual rotation of sheep, hay and cattle or simply alternating cattle and sheep each year to provide ‘clean ‘grass has demonstrated impressive increases in production.
ARS 417 It could be ruinously expensive to buy in livestock until you can produce enough fodder; the establishment of a crop rotation and hay or silage-making plans should therefore keep ahead of livestock build-up.
TOEIC short conversations: Two old friends meet on the bus |
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Torsten Learning Coach

Joined: 25 Sep 2003 Posts: 15008 Location: EU
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#9 (permalink) Sat May 01, 2010 16:27 pm Rotation vs revolution |
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| Sorry but I think I was not careful when asking the question. This question is just about the usages of the two words in the astronomy aspect. |
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Blue_Snow I'm here quite often ;-)

Joined: 22 Apr 2010 Posts: 302 Location: Hanoi, Vietnam
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| what does "LOL" mean? | Can we refer to natural selection using the word 'she'? |