# Thread: The perpetual motion of the earth as it turns on its axis creates the change of

1. ## The perpetual motion of the earth as it turns on its axis creates the change of

The perpetual motion of the earth as it turns on its axis creates the change of seasons.

The above sentence is grammatically correct. But its concept seems scientifically incorrect. Do you agree?

2. ## Re: The perpetual motion of the earth as it turns on its axis creates the change of

It's incomplete. I think it would be true to say that the seasons (and hence the change of seasons) would not occur if the earth did not turn perpetually on its axis.

3. ## Re: The perpetual motion of the earth as it turns on its axis creates the change of

It is not the daily rotation of the earth that causes a change of seasons. That causes the change of sunlight in a day. What causes the change of seasons is a tilt in the earth's axis. The axis tilt changes the orientation of the earth with respect to the sun as the earth orbits the sun.

http://earthsky.org/earth/can-you-ex...s-four-seasons

4. ## Re: The perpetual motion of the earth as it turns on its axis creates the change of

Yes, I didn't think enough before I answered that. The earth would still have seasons even if it didn't spin on its axis, assuming other factors remained the same.

5. ## Re: The perpetual motion of the earth as it turns on its axis creates the change of

No worries. It happens to all of us.

6. ## Re: The perpetual motion of the earth as it turns on its axis creates the change of

I was going to say that there is no such thing as perpetual motion. The earth will stop spinning one of these days.

7. ## Re: The perpetual motion of the earth as it turns on its axis creates the change of

If it didn't turn, we'd have 180-day "days" and it would get insanely hot during the day and insanely cold at night. I don't think we'd think of seasons the same way. "Winter is coming" would have a whole new meaning.

8. ## Re: The perpetual motion of the earth as it turns on its axis creates the change of

What does one of these days mean?

9. ## Re: The perpetual motion of the earth as it turns on its axis creates the change of

Originally Posted by sitifan
What does one of these days mean?
http://idioms.thefreedictionary.com/one+of+these+days

Someday, or eventually.

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