[R-390] Exhumation of dead horse...Dead horse walking

[Roger L Ruszkowski]

Power has 2 dimensions voltage and current.

Half the power is not P/2 it is P/4.
Half the voltage is V/2
Half the current is I/2.

1V times 1I is 1P

1V times 1/2I is P/2
1/2V times 1I is P/2

1/2V times 1/2 I is 1/4P

It is a math thing.
Power is dependent on time.


Think about transmitted power into an Antenna
and 1/2  the power being 3DB down.
or twice the power being 3DB up.

The story is great. the logic is good. the math is in error.

The jocks, have the whips out and the horse is leaning
into the rail.

Roger KC6TRU.



                                                                                                                       
                    twleiper@juno.com                                                                                  
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                    an.qth.net               Subject:     Re: [R-390] Exhumation of dead horse...Dead horse walking    
                                                                                                                       
                                                                                                                       
                    01/11/2002 01:24                                                                                   
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On Fri, 11 Jan 2002 15:32:18 -0500 "rbethman" <rbethman@home.com> writes:
EDITED...mercifully
> Not so.  Power is not dependent on "time".  The power delivered
> during that pulse is full, not half.

OK. Half the pulses, half the power. Forget the time. Same thing.

Let's say you have a steam engine with one single action cylinder.
Assume a perfect flywheel, no parasitic loads (such as bearings),
an unlimited supply of steam at a constant pressure (the functional
equivalent of our 60 hz power), and a static load such as a coal
elevator conveyor (the resistance of our filaments).

In operation, the single action cylinder pushes through one half
revolution and coasts through the other. Now you either convert
the cylinder to double action, or add another single action cylinder
to "push" on the other half revolution while the first cylinder is
"coasting".
The load of coal will now have to be doubled (dissipating more energy)
in order to maintain the same RPM as before, or the conveyor will
run twice as fast...either way you get twice as much coal. The engine
will NOT generate THREE times the power and give you three times
the amount of coal.

Adding the second cylinder action in this example is the same thing as
"removing" the diode in our electronic equivalent. That is why a V8
engine (for the most part) only generates eight times the power of
a single cylinder engine of one eighth the displacement. Otherwise,
instead of generating, say, 240 HP, it would generate 540 HP.

And so we end up here in the back stretch talking about horses...

> "They're making the first turn...."
>
> Bob
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