Amazing displays of ignoranceSandettie Light Vessel Automatic tells us: "My dad's friend told us there's no such thing as gravity - it's just the weight of air holding us down". Tell us of times you've been floored by abject stupidity. "Whenever I read the Daily Express" is not a valid answer.
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Scaryduck LIKES EGG, Thu 18 Mar 2010, 16:48)
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Electrostatic forces trump gravitational ones.Hold out a tennis ball in your hand and let go.
It falls due to the gravitational forces between it and the earth.
The floor stops the ball falling. This is due to the electrostatic repulsion between the electrons in the molecules of the ball and the floor.
The other electrons in the wire will exert forces many magnitudes higher than anything gravity can come up with.
(, Fri 19 Mar 2010, 18:18, 1 reply)
Oh, absolutely.But, still, there must be some impact, mustn't there, even if it's vanishingly small?
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Enzyme is powered by sunlight, Fri 19 Mar 2010, 19:34,
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