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- Path: sparky!uunet!stanford.edu!rutgers!dziuxsolim.rutgers.edu!ruhets.rutgers.edu!bweiner
- From: bweiner@ruhets.rutgers.edu (Benjamin Weiner)
- Newsgroups: sci.physics
- Subject: Re: Instant Communications
- Message-ID: <Jul.31.16.07.56.1992.25126@ruhets.rutgers.edu>
- Date: 31 Jul 92 20:07:56 GMT
- References: <3978@cruzio.santa-cruz.ca.us>
- Organization: Rutgers Univ., New Brunswick, N.J.
- Lines: 32
-
- Snarfy writes:
- Now , back to current draw. Again, Kirschoff's law states that
- at a junction I(in) = I(out) . Since a junction is usually
- considered to be a place where three conducting elements are
- joined , consider a system of a transmitter 18.63 miles distant
- from two receiving antennas . At resonance , the receiving
- antennas each ``drain'' 1/10 of the available output of the
- transmiter. The rest of the transmitter's energy is ``wasted'' on
- heating the atmosphere or distant intergalactic nebulas. If one
- of the antennas is suddenly oriented away from the transmitter,
- the same mass still stands between the transmitter and the
- distant galactic nebula and the atmosphere beyond the antenna.
- The entire resonant system is now detuned ,however, because of
- the effective removal of one of the inductive elements from the
- system. If the effect of this detuning took the time necessary
- for light to traverse the 18.63 miles to register at the
- transmitter, then you would have a violation of Kirchoff's law
- which endures for .1 milliseconds ( a virtual eternity ,
- leptonically speaking).
-
- Snarfy, you ding-dong, you're saying that the current at the receiver
- is not equal to the current at the transmitter. Right. If you are
- going to consider the Xmttr-Rcvr pair (or triad) as a current loop
- of a circuit, you had better consider the circuit element that
- connects the transmitter and the receiver - the electromagnetic
- radiation (which fills a lot more space than just between the
- antennae, which is where the extra energy goes). At any individual
- point between the two, no violation of Kirchoff's Law occurs - the
- disturbance in the EM field back-propagates from the antenna with
- speed c.
-
- Ben
-