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Electret Pool
Well, what else were you going to use that 500 trillion volt battery for? | |
Embedded in the centre of each pool ball is a small metal sphere which has been statically charged during manufacture to about 500 trillion volts or so. The ball is made of insulating material, so the charge remains trapped, forming an electret.
A similarly charged metal pellet is placed in the tip
of the cue, and charged metal rods are likewise embedded in the cushions.
In this game, physical contact between balls, cue and cushions is very rare, happening only on the very hardest shots. Most interaction takes place via the electrostatic repulsion caused by the trapped electric charges.
52mm diameter
https://en.wikipedi...m_SK_L/55_naval_gun
Most satisfactory [8th of 7, Sep 11 2016]
[link]
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Do you have reason to believe that an electret with a
voltage high enough to repel in this application would be
long-lasting? It seems like at the very least the effective
charge would be reduced by opposite charges sticking to
the surface. |
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[+] just in case it would work. |
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Yes, sounds like an awful lot of pocket lint. |
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//charge remains trapped//
//500 trillion volts//
Not for long! |
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Diamond has a breakdown voltage of 2 GV/m, 2 x 10^9. |
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For comparison, vacuum breaks down at about 10^12 V/m |
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Pool balls are a standard 2" diameter. Assuming the diameter of the electret in negligible with respect to the diameter of the ball, the thickness of the dielectric can be taken as 25mm. |
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500 trillion is 5 x 10^14. |
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The time allowed is one hour. Use ink, write on both sides of the paper. Show your working. |
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This could work, if done under a suitable electron
microscope, using single ions as the balls. |
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But how would you chalk the cue ? |
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What you get up to in the privacy of your own
bedroom is none of my business. |
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It's what you get up to in the privacy of other people's bedrooms that worries us. And an awful lot of husbands ... and wives ....and parents ... but worst of all, the owners of exotic livestock .... |
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It's more effective to actually insert the ball into the cat. A special tool is available for the purpose. <link> |
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