ok, I get some parts of it, except where all that dust comes from.
3 more q's
these are all incorrect right?
1. the centers of gravity of Earth and Moon are fixed (do not move) with respect to the corresponding planetary/lunar surfaces
2. the speed of light is constant (it doesn't change with time)
3. Light beam between Earth and Moon travels through media that do not change with time
and in correlation with those 3 q's, are these true?:
1. Neither Earth, nor the Moon are rigid bodies. Their interiors are partly liquid and semi-solid. Hence, observations of our scientists can be explained by slight changes in mass distribution inside Earth/Moon interiors. Incidently, some notorius and unexplained errors in satellite positions can be expained this way too.
2. Recently, our scientists noticed that the speed of light seems to decline slightly. When light becomes slower, it takes more time for it to reach the Moon and come back. Whoever assumes that the speed of light is constant is bound to conclude that the distance between Earth and the Moon increases.
3. The moon seems to develop its atmosphere. If you look at a new moon, you will be able to see its entire outline. In the past, this was not possible. Observing the entire lunar outline is only possible if the moon has an atmosphere. As you know, light travels through atmosphere slower than through vaccum. Hence, thickening of the lunar atmosphere would contribute to a conclusion that the Moon drifts away from Earth. Increase in pollution/composition of Earth's atmosphere (CO2) has a similar effect.
thanks