How small would something need to be for the gravitational field of a human to significantly affect it? At what point would something be attracted to someone or able to establish an orbit? (Continued)
• The time it would take a hydrogen atom to orbit a human should have been 10 times longer than the 2.5 hours I claimed in my earlier answer, that is 25 hours. I clearly cannot read the display on my calculator.
Mike Follows, Sutton Coldfield, West Midlands, UK
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