Third, both the numerator and denominator in this expression are positive, since We and Wm are negative (both the Moon and Earth rotate slower, that is We and Wm are less than zero, as energy is lost due to tidal friction). This means that Dr is positive. So the rate of change in the Earth-Moon distance is increasing with time, so it was slower in the past. This refutes your claim that the Moon must have been receeding faster in the past.--[[User:Macronking|Macronking]] 12:58, 17 March 2007 (EDT) | Third, both the numerator and denominator in this expression are positive, since We and Wm are negative (both the Moon and Earth rotate slower, that is We and Wm are less than zero, as energy is lost due to tidal friction). This means that Dr is positive. So the rate of change in the Earth-Moon distance is increasing with time, so it was slower in the past. This refutes your claim that the Moon must have been receeding faster in the past.--[[User:Macronking|Macronking]] 12:58, 17 March 2007 (EDT) |