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Authored by: Anonymous on Monday, April 01 2013 @ 02:37 PM EDT |
Some people think Isaac Asimov wrote only money spinning SF.
At a weekend market I picked up (the book...
The Collapsing Universe
Hutchinson 1977
It has some useful background material for your (rhetorical?) questions,
only slightly dated by modern cosmology.
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Authored by: JamesK on Monday, April 01 2013 @ 05:16 PM EDT |
{
I've seen the videos of someone holding an illuminated florescent tube under a
power distribution line and wondered how that could be.
I was told that electrical power was the flow of electrons (might have been by
my clever uncle, Mr Faraday). If you feed an antenna with electrons, electrical
power leaves the transmitter and can then travel millions of miles into space to
generate a flow of electrons in a receiving antenna. I'm told that light and
electricity can act as both waves and particles. Where do the 'received'
electrons come from? Are they pulled from antenna atoms by the received field?
Is the received field transmuted into new electrons?
}
I think you're confusing things. Electricity is carried in a conductor by
electrons. Radio waves & light are carried by photons. If you connect an
AC source, including the power system, to an antenna, such as over head power
lines, the electrical energy is converted to electromagnetic energy that is
carried by photons. When you hold up a fluorescent bulb, it acts as an antenna,
receiving some of the transmitted power and that enery excites the lamp,
producing visible light.
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The following program contains immature subject matter.
Viewer discretion is advised.[ Reply to This | Parent | # ]
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