Joshua Bell wrote:
>
>Meaning a passing car probably has more gravitational influence on you
>than (say) Saturn... (brief pause while I type some constants into
>Excel)... force of Saturn (roughly, since it varies with orbital
>distance) on a 90kg Josh: 1.66e-6 N. Force of a 1000kg car 1m away from
>a 90kg Josh: 6.01e-6 N.
>
Saturn's force is even less than that, because it doesn't
matter how much Saturn is attracting you [otherwise
the Galaxy would have a big pull on you!], but the
difference from Saturn's attraction over you and
Saturn's attraction over the whole Earth.
It's the tidal effect that can be measured. And it's
[pull] times [Earth's radius] divided by
[Earth-Saturn distance] plus [some trigonometric
function that is lower than 2]
Alberto Monteiro
