On Monday, February 24, 2014 3:35:33 AM UTC, ghi...@gmail.com wrote:
>
>
> On Sunday, February 23, 2014 11:39:50 PM UTC, Liz R wrote:
>>
>> They would pull further away, I believe. Tidal drag slows the rotation of
>> the bodies (for example by pulling the ocean out into an ovoid in this
>> case)
On Sunday, February 23, 2014 11:39:50 PM UTC, Liz R wrote:
>
> They would pull further away, I believe. Tidal drag slows the rotation of
> the bodies (for example by pulling the ocean out into an ovoid in this
> case) and conservation of angular momentum requires that their orbits widen
> as a
On 2/23/2014 4:19 PM, Gabriel Bodeen wrote:
An Earth-Earth system with rounder planets wouldn't have to be tidally locked,
I think.
Rounder planets wouldn't matter. Planets are not rigid bodies, so changing gravitational
forces (as by a nearby body) changes the shape of the planet. It doesn
IIUC, the Moon is tidally locked to the Earth because it was initially a
bit molten and due to Earth's gravity was an elongated ball shape, not
quite a sphere. Then it cooled down and solidified that way. The tug of
gravity keeps the Moon's bulge pointed toward us, braking the rotation of
the
They would pull further away, I believe. Tidal drag slows the rotation of
the bodies (for example by pulling the ocean out into an ovoid in this
case) and conservation of angular momentum requires that their orbits widen
as a result.
On 24 February 2014 09:14, wrote:
> I was just trying to imag
I was just trying to imagine the effect two equal oceans, one on each
objechave? The ocean puts a heavy brake on the rotation of Earth and has
already tidally locked the moon. But what tidal drag went both .ways? Would
the planets start moving toward eachother, or pull further away?
--
You re
6 matches
Mail list logo
