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RevK :verified_r:

@johncarlosbaez @CascadeTommy now I understand, so the gold cube is inside in a vacuum so that it does not get pushed around? And the outside is steered to keep it in the middle. Just hope it does not touch the sides!

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John Carlos Baez

@revk @CascadeTommy - the satellite is steered around so the 2 gold cubes floating inside it do not touch the walls of the vacuum chamber. The cubes are in free fall. The satellite is *almost* in free fall - it's just very gently pushed by solar wind - so it only needs tiny thrusters to make very gentle course corrections that keep the cubes where they belong. This technology has been tested by LISA Pathfinder, and it worked.

spacenews.com/lisa-pathfinders

@revk @CascadeTommy - the satellite is steered around so the 2 gold cubes floating inside it do not touch the walls of the vacuum chamber. The cubes are in free fall. The satellite is *almost* in free fall - it's just very gently pushed by solar wind - so it only needs tiny thrusters to make very gentle course corrections that keep the cubes where they belong. This technology has been tested by LISA Pathfinder, and it worked.

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