>
>> >>>What's the physical explanation of this rectification effect -
>
>> >>Loose gold meltballs are repelled from the anode insulator by negative
>> >>potential. Positive anode potential attracts gold to the insulator.
>
>How does an insulator take on a negative potential?
>
The anode is highly negative. Loose gold is repelled from the area -
which includes the anode insulator.
>> >I'm not arguing; but I need help understanding. I can understand why a
>> >field-emission rectifier works; it's because electrons come in just one
>> >polarity. (At least, in normal matter, not antimatter :-) But I don't
>> >understand why little gold balls would exhibit polarity.
>
>> Gold atoms are surrounded by a swarm of negatively charged electrons.
>
>In the Bohr model of an atom, a central nucleus containing neutrons and
>postively-charged protons is surrounded by orbiting negatively-charged
>electrons. In its normal state, the number of protons and electrons are
>equal, so that atom's net charge is 0.
>
>Under certain circumstances, electrons may be stolen or ripped away from an
>atom, leaving it with a net positive charge. Under other circumstances, an
>atom may steal electrons from some other atom and thereby gain a net
>negative charge. Such charged atoms are referred to as ions.
>
Well put. // Like bits of paper, fine gold particles can be attracted
to or repelled from high potentials.
>> Like charges repel. Unlike charges attract.
>
>Thus, negatively ionized gold atoms would be attracted by a positive
>potential.
>
cheers, Dave
- Rich..., 805.386.3734, www.vcnet.com/measures.
end
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