Questions out curiosity ( since we all into earth mechanics now :)

How much energy is stored in rotation of the earth itself ?
i.e. mass of earth versus the velocity of rotation will give
us what ?

What is the mass of world water ? let's estimate by mass of
world ocean and seas only, all the rivers and lakes etc are
excluded.

How much energy would be stored in world ocean waves ?
( water surface of earth is known ) For example if waves are
1 meter high with distance between waves lets say 30 meters.

Besides the earth rotation what else can be accounted for
creating a water waves ? i.e. moon and other planets gravity,
wind generated by thermal difference, something else, unknown ?



Gerhard Fiedler wrote:
> 
> Olin Lathrop wrote:
> 
> > Gerhard Fiedler wrote:
> >> Yes, I agreed already to the source of this energy being the kinetic
> >> energy of the rotation. The question is really whether the energy would
> >> be conserved as kinetic energy if the float wasn't there, or if it
> >> would get lost (as kinetic energy) anyway -- maybe at the coast line.
> >> It seems to me that there's quite a bit of kinetic energy that gets
> >> lost (as kinetic energy) at the coast lines...
> >
> > Some of it of course does get dissipated, but I think a large chunk doesn't.
> > However I can't think of how to substantiate this one way or another.
> 
> Hm... Imagine the earth without continents. The tidal wave would move
> around the globe, once in 24 h (not quite, but that's not the issue here).
> Now you have a continent right there in its way.
> 
> This doesn't look like a good situation for ideal reflection -- which I
> think would be necessary for not loosing substantial energy there.
> Basically, what does not get reflected gets transformed in heat, I think.
> 
> Gerhard
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