🚀 go-pugleaf

I have heard an interview with one scientist from a Research Institute
in Boulder.  She claimed to have discovered the origin of the Moon. 
According to her, a huge asteroid of the size of Mars has collided
with our Earth several billion years ago.  An explosion followed, huge
cloud of matter was thrown very far away from Earth.  This cloud then
condensed into the Moon, and this is how the Moon was created.

She also claimed that right after the collision, the Earth spin was so
fast, that one revolution took 5 hours instead of 24.  The moon was
originally much closer to Earth, and the distance is increasing by 3
cm. per year.  The reporter, regretfully, did not know what question
to ask.  Here are some questions, which I would like to ask.  First,
how can she measure the distance between the Earth and the Moon with
the accuracy of 3 cm?  Neither Earth, nor Moon are perfect spheres. 
The distance between the Earth mountain to the Moon mountain is
different from the distance between the Earth ocean to the same place
on the Moon.  The Moon's orbit is not a perfect circle either, so I
would ask her whether she was talking about the distance at a certain
point in the orbit or whether she claimed the distance to be
increasing all over the trajectory.  If it is all over, I would
inquire, what forces produce such a change, and where does the
necessary energy come from.

There are no planets between the Earth and the Moon.  The planets from
the outside can not possibly increase the distance between the Earth
and the Moon, unless they attract the Moon and repulse the Earth, and
such bodies just do not exist.  The woman explained the slowing of the
Earth rotation by the fact that distance between the Moon and the
Earth was increasing.  My little brain can not find any law of
Mechanics, which would relate these two phenomena.  Common sense tells
us that the greater the distance between any 2 bodies, the less is
their mutual influence.  I would have understood the argument that the
tides, influenced by the Moon, can somewhat slow down its rotation,
but again, with increase of the distance between them, this influence
will decrease, not increase.

There is one more little detail, which the woman did not address.  The
Moon rotates in such a way, that we always see only one side of it.  I
just wonder, how "accurate" must be the blow to the Earth, which would
not only create the Moon, but also make it rotate with such a
remarkably accurate speed.

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