Forget ocean levels rising due to global warming what if

1. Aug 29, 2010

DaveC426913

...Earth stopped rotating?

Most of North America would be swamped under poleward rushing oceans.

A whimsical but cool look at an Earth stopped in its tracks...

From http://bigthink.com/ideas/21768".

Last edited by a moderator: Apr 25, 2017
2. Aug 29, 2010

Pengwuino

Thank god for angular momentum.

3. Aug 30, 2010

Studiot

4. Aug 30, 2010

Nik_2213

D'uh, what about the tide ??

5. Aug 30, 2010

DaveC426913

6. Aug 31, 2010

Jim1138

Do we stop too, or do I need to get carbon fiber underwear for the 1600 KPH skid?

7. Aug 31, 2010

DaveC426913

Heh. Well we can pretend that Earth come to a gentle stop. The oceans still rush poleward.

8. Sep 6, 2010

chazzone

As usual for programs like this, it was long on doom and gloom, and short on science.

The whole atmospheric model is ridiculous.

While some atmosphere might initially be drawn from the equatorial regions, the resulting heating would draw it back into the familiar convection loop.

Likewise, the idea of a dry desert mid-band completely ignores what happens when moisture laden winds from the poles crosses the land and drops its load.

While the Coriolis Effect gives us west to east winds in the Northern hemisphere, it is not the primary driver of our climate or H2O distribution, convection is, and this convection would not only continue, but intensify bringing monsoon like conditions to some areas.

I suppose when we have an ignorant populace, it is easy to produce rubbish like this, much like the ridiculous idea that a slight increase in a trace atmospheric gas like CO2 would actually have a significant impact on our climate.

9. Sep 6, 2010

DaveC426913

What program?

What rubbish?

10. Sep 6, 2010

chazzone

Sorry, I was referring the the "Aftermath" program, "When the Earth Stops Spinning".
That's where I originally saw this map, and it all came flooding back, like a bad dream.
Watch it here:

Last edited by a moderator: Sep 25, 2014
11. Sep 6, 2010

DaveC426913

Haha no I don't need to; I'd probably want to take a shower afterwards.

No, this map is not meant to promote any science; it is just from a "Strange Maps" site. I had no idea the map itself might have any kind of sordid history...

Last edited by a moderator: Sep 25, 2014
12. Sep 8, 2010

mheslep

Well slow stop or not, the rotational kinetic energy has go somewhere:

$$\frac{1}{2} I \omega^2$$ = 2.14×10^20 GJ

Or enough to flash to steam ~5x10^23 kg of cold water. The ocean mass is 1.39x10^ 21 kg. Time to redraw that map all brown, or red because the crust is going to melt too.

13. Sep 8, 2010

Andre

hmmm, any planet around that has no spin but a lot of heat?

14. Sep 8, 2010

Staff: Mentor

No spin and a lot of heat... to some extent Venus fits. It rotates, but very slowly, and surface temperatures are high enough to melt lead.

15. Sep 8, 2010

Andre

Now, isn't that interesting? :tongue:

16. Sep 8, 2010

chazzone

Actually, Venus rotates in reverse, and is the only planet in the solar system that does so. This is an indication of some cataclysmic event, like a large bolide strike, which would explain the conditions observed.

17. Sep 8, 2010

Andre

But still the 'rotational kinetic energy' has to go somewhere or?

For alternate ideas how you can stop a planet spinning, see Correia et al 2002 and part II (but they did not do the math on conversion of spinning energy).

18. Sep 8, 2010

Staff: Mentor

I have learned long ago to not even pretend I understand women.

19. Sep 9, 2010

Robot B9

What if they used a tractor beam?

20. Sep 21, 2010

Max™

I think Baxter had a story once where humans discovered massive superconducting cables wrapped around Venus which had been used to exchange the spin of the planet to a moon it used to have which would have been flung out of the solar system, at the cost of ruining the planet.