Naked Science Forum
Non Life Sciences => Physics, Astronomy & Cosmology => Topic started by: jeffreyH on 21/02/2014 13:06:09

I have calculated the gravitational feedback of 99 earths side by side and each touching at the surface much like a string of beads arrangement. The graph shows the increase in gravitation through the chain of earth masses from one end to the other.

Surely in the middle of the chain the the gravitational force from each half would cancel each other out,
like at L1 ... https://en.wikipedia.org/wiki/Lagrangian_point#L1

Surely in the middle of the chain the the gravitational force from each half would cancel each other out,
like at L1 ... https://en.wikipedia.org/wiki/Lagrangian_point#L1
Yes that would be a valid observation if I were modelling the field in both directions. This is a simplified unidirectional representation. I could plot a two way feedback but that would not be my original intention. This may sound like a strange way of viewing this but I have my reasons for doing so at this point in time. Look at it as if each earth is added one at a time and we measure g as we go along the line.

Taking into account the gravitational cancellation we now have the following. Each point is a measurement of g at the point where one earth touches the next at the surface. The yellow plot shows g at each point after cancellation. If combined with the model for escape velocity from the centre of a planet it is assumed that the yellow plot would then resemble a wave equation with the amplitude varying away from the combined centre of gravity. This assumption of course may be wrong.