Re: Two questions

Dear Volker Hetzer:

"Volker Hetzer" <volker.hetzer@xxxxxx> wrote in message
news:d5j0ca$rrs$1@xxxxxxxxxxxxxxxxxxxx
> N:dlzc D:aol T:com (dlzc) wrote:
>
>>
>> The only thing I can add is that the Moon
>> has left a pretty continuous record in
>> "tidal rhythmites" over the last 2 billion years. Not that
>> the lunar recession is
>> entirely (or at all) due to universal
>> expansion. In lunar recession, angular
>> momentum transfer from the spinning
>> Earth to the Earth-Moon system is the major player.

> How does it get transferred?

Pour a little coffee (or tea, or beer) in a cup. Swirl it
around, without using a spoon. How did you transfer angular
momentum to the fluid? You moved the container (hopefully).
Like a miner panning for gold.

The water on the Earth is like a "moving container", in that its
(the water's) contribution to spacetime (sorry Bjoern) is always
a little ahead of the Earth. The water sloshes momentum onto the
Moon, and brakes the Earth with tidal friction. In periods
"known" for high glaciation, the recorded lunar recession rate
was low.

To repair any damage I probably did:
Google Advanced
all the words: Earth Moon
exact phrase: angular momentum
either word: tide tidal
from domains: .edu
only 610 hits, like:
URL:http://csep10.phys.utk.edu/astr161/lect/moon/tidal.html
URL:http://burro.cwru.edu/Academics/Astr221/SolarSys/earthmoon.html
URL:http://www.sunspot.noao.edu/sunspot/pr/answerbook/expl-6.html

> Lots of Greetings!

To you as well.

David A. Smith


.

Relevant Pages

  • Re: OT - Dinosaur Extinction Explained
    ... It is now known that the moon is moving away from the earth by ... Conservation of angular momentum comes into the picture because tidal effects dissipate energy. ... Its angular momentum is greater at greater distance from the earth, so the former momentum of rotation, becoming momentum of revolution, implies greater distance. ...
    (rec.birds)
  • Re: OT South African Mystery Spheres
    ... momentum and so on have been present in the literature since ... (rapidly-spinning Earth fissions), "sister" (Moon forms in Earth orbit as ... thoroughly destroyed by the Apollo samples: lunar rocks are too similar ...
    (sci.space.history)
  • Re: What time of the year is the moon closest to the Earth??
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    (sci.astro)
  • Re: Noethers Theorems (1918) in English translation
    ... The loss of momentum is from the ... >> Earth to the Moon. ... There is a net energy ... >> The Earth should have a net decrease in energy, ...
    (sci.physics.relativity)
  • Re: Electrogravitics is Reality!
    ... we do live on a planet called Earth and it is ... orbited by a moon, and we can build things called rockets to access it ... That's fantasy too. ... SRBs increase cost, increase danger, and are a bad idea. ...
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