Is Lindsay?s ?SM? a fraud?

[Grumpy]

Sorry but I just couldn't stand by and let this one go without adding my two cents.....

I = E / R

Imagine you had a means of producing 150,000 volts constant pressure (could be an AC or DC source electrical pressure is electrical pressure), you charge a condenser bank rated at 100,000 volts 100nF.  You then short this condenser bank through a 5 ohm coil.  (The coil could be primary of an air core transformer.)  According to ohms law I = E / R, each time the condenser bank discharges across the 5 ohm coil, 20,000 amps is produced.  Yeah there is more math to it, but I don't care, this example is about ohms law.

If I or anyone for that matter  were to take what you say to seriously, that there is no power in high voltage, then all hope is lost, literally!  A high voltage low current source is used to charge a high voltage low capacity condenser, the condenser discharges and produces huge amperages which can't be produced in this amount nor with this efficiency in any other way!  So at the end of the day my friend, the problem doesn't lie with high voltages, it lies in your understanding of how to properly put them to use.

Had Tesla gone by what you say, he wouldn't have observed the power developed in a properly designed system when a high voltage low capacity condenser is discharged by connecting it with a coil of possessing the proper resistance and inductance, and driven or switched at the calculated frequency.  I am very grateful that he went the route he did.

Regards

Disclaimer: The following is not a correction or contradiction - it is just a different perspective.

I = E / R appies to DC

With impulses, we have impedence to contend with so we use:

I = V / Z (rms current = rms voltage / impedence)

Not that this changes the end result, just that is changes the view along the way, which I hope will be quite enlightning.

You apply your 100000 volt capacitor discharge to your coil of high self-induction whose resistance is 5 ohms, and whose impedence to this impulse from the capacitor is more like 10000 ohms.  The current in this case is only 10A.  If the phase difference between the voltage and current is 90 degrees, then your power factor is about 6 and your average power is a mere 6 watts. 

Wait. This is the good part.

If your capacitor discharge creates a traveling wave, then the current and voltage are "in phase", and the power factor is 1.  Your average power is now 1000000 watts - delivered in a nanosecond.

In order to achieve this, you have to follow the rules and cause a traveling wave to form.

Many of you may not be that familiar with traveling waves, but you can bet that Tesla and Steinmetz were very familiar with them.  They had seen the effects of these waves first hand.  The wave of energy that Tesla watched move along DC power lines was a traveling wave.  They are created by capacitive discharge, inductive discharge, lightning, and even switch closures such as Tesla observed.  In Dollard's analysis of Tesla Transformers, the traveling wave and it's effects are explained.

[sparks]

  @Grumpy

      If we look at an altenator the speed of the wave is limited by mechanical constraints.  To achieve higher voltages from the slowly changing wave it is necessary to increase the wave amplitude which results in an increase in magnetic field intensity.  Again this is all limited by how fast the steel can respond to the mechanically produced wave another loss.  Now comes the real losses.  As current is drawn from the stator windings it produces magnetic field interference with the magnetic field of the driven rotor.  The prime mover bogs down and we are putting more energy into heat than anything else.   We end up with a 60hertz wave which is about as low as you can go on the emwave energy spectrum.
     Take the stator and replace the rotor with a "traveling wave" generator whose scource of energy could care less about magnetic field interference and we start to move in the right direction. 

[Grumpy]

     Take the stator and replace the rotor with a "traveling wave" generator whose scource of energy could care less about magnetic field interference and we start to move in the right direction. 

I'll take that.

Looking at this from the "energy" perspective.  Energy is often measured in Joules - and a Joule is 1 watt/second.

So, with our small capacitor of 1000 pF, and our 100000 volts:

J = 1/2 C E^2

J = 1/2 * .000000001 * 100000

J = 5 Joules

Now 5 joules isn't much at all, so what's going on here?

Do we figure that this 5 Joules is repeated 100000 times a second and come up with 500000 Joules?

[Grumpy]

     Take the stator and replace the rotor with a "traveling wave" generator whose scource of energy could care less about magnetic field interference and we start to move in the right direction. 

I'll take that.

Looking at this from the "energy" perspective.  Energy is often measured in Joules - and a Joule is 1 watt/second.

So, with our small capacitor of 1000 pF, and our 100000 volts:

J = 1/2 C E^2

J = 1/2 * .000000001 * 100000

J = 5 Joules

Now 5 joules isn't much at all, so what's going on here?

Do we figure that this 5 Joules is repeated 100000 times a second and come up with 500000 Joules?

[Grumpy]

For our answer, I draw on a Physicist:

And after thinking about this for a while, how do you get 1000 times the earth's power output in one second using only five dollars worth of energy? That seems a bit like the cold fusion claims, putting little in and getting a huge amount out.

Energy IS conserved - but power - the rate at which energy flows isn't.

You charge up the capacitors for several minutes - giving you a certain
amount of energy - and then discharge them in a very short time - like a
nanosecond. You don't create any energy - you just make it flow very
fast for a very short period of time.

The electronic flash on your camera works exactly the same way.

Let's say we can draw 100 watts [ like a single electric light ] from the
power grid. Let's charge a capacitor bank for 1000 seconds [ about 20 mins ].

So we have 100,000 watt-seconds of energy or 100,000 Joules stored. Now
let's discharge that capacitor bank in 1 nano-second or 10^(-9) seconds.

What's the power?

The power is energy per unit time. The energy is 100,000 watt-seconds or
10^(5) watt-seconds. The time to discharge is 1 nanosecond = 10^(-9)
seconds.

The power P = 100,000 watt-seconds / (10^(-9) seconds) = 10^(14) watts
or 100 terrawatts.

That's twice the amount of the energy that the entire Earth uses in
that nanosecond. We didn't create any energy - we just had to spend
20 minutes storing energy at a rate of 100 watts [ like a lightbulb ]. We
just discharged it fast.

Nothing like cold fusion which claimed more energy than was put in.

Dr. Gregory Greenman
Physicist

Which is what Tesla said, just different words.