Poynting vector
"Ian" napisał w wiadomości
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"Szczepan Bialek" wrote in message
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: :
: So we have the three teams of posters:
: 1. Faraday, Stokes, Lorenz, Marconi, Tesla and Dirac,
: 2. Heaviside and Poynting,
: 3. You, Tom, Rob and Jimp.
:
: From whom should I learn?
: : S*
Hello Szczepan. Teams 1 and 2 do not exist, do they? Faraday and the
others
aren't sitting at computers and making posts, are they?
You're making posts with text that you seem not to understand. This
confuses
you even more and amuses us.
Do you agree with Heaviside and Poynting. Father of the famous vector wrote
in 1884 (before the Hertz experiment):
""Energy is transferred through empty space outside the wires".
"The whole of the energy then enters in through the external surface of the
wire, and by the general theorem the amount entering in must just account
for the heat developed owing to the resistance,"
As you should see the energy from the transmitter enters in through the
external surface of the
wire (antenna) and next is radiated as the heat.
It amuses me. And what about you?
Do you know that antennas radiate very,very lower frequences than heat?
"'How does energy really flow in electric circuits?'. The answer is fairly
standard university-level physics but is rarely mentioned in secondary
school text books".
What textbooks you have?
S*
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