Let me start off by saying one of the nice things about where we physically are right now is that we remove the effects of gravity, so we're able to do experiments that involve the effect of gravity basically on Earth as we look at what happens with the absence of it.

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Then, of course, there's the small issue of gravity, and the effect it will have on growing vegetation, but we're thinking, at least there'd be fewer bruised apples.

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The overall strength of the moon's gravity, as well as its differential (tidal) effect, is greatest when the moon is closest to the Earth, as on January 4, 1912.

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