STEORN DEMO LIVE & STREAM in Dublin, December 15th, 10 AM

[happyfunball]

The view that Earth is the center of the universe and everything revolves around it was around a bit longer--about 2000 years. Why did we have to listen to Copernicus and his revolutionary heliocentric theory? Seven years. Are you kidding me?

That's amazingly unrelated. They claim to have had OU technology for ~ 7 years. What possible justification can there be for Steorn not to be using Orbo to power their office? I know, they want to 'lease the technology'... It's absurd.

[Omnibus]

@Bruce_TPU,

Here's a picture of the new air coil:

[Omnibus]

That's amazingly unrelated. They claim to have had OU technology for ~ 7 years. What possible justification can there be for Steorn not to be using Orbo to power their office? I know, they want to 'lease the technology'... It's absurd.

Why didn't John von Neumann make the computers we use today when he was working on them in 1943 but was dragging his feet? Seven years after 1943 he was still dragging his feet and there were no computers in sight in offices and in kid's dorms? Why? It's absurd. He should've done it right away and not make people wait for it. What nerve.

[Omnibus]

How about Goddard. Did he go to the Moon with his rocket invention? No. Why? That's unfair.

[Omnibus]

@All,

I'd like to run this by you and hear what you think. It seems that settles the capacitance problem:

It has been suggested that parasitic capacitance in the coil might be the reason for the apparent OU reported here. The conjecture put forth is that when the device is powered at high frequencies the inherent capacitance C (which is inherent but is unintended, that is, parasitic for an inductive coil) starts to play a role, giving rise to non-dissipative capacitance current according to Ic = C dE/dt. If unaccounted for it may misleadingly be taken as part of the current which passes through the dissipative (Ohmic) resistance R of the coil. Thus, it was proposed that if one fails to recognize that the current I one measures, in fact consists of two components I = Ic + Ir of which only Ir; that is, the one passing through the active (dissipative, Ohmic) resistance, is responsible for the losses, then the output power I^2R will be overestimated.

The above hypothesis must be tested experimentally. For this reason, a capacitance of 100pF was connected parallel to the coil before the current probe measurement, as seen in the figure below.

This 100pF capacitance models a capacitance shunt mentioned above, increasing the current I measured by the current probe. For the purposes of this model that measured current I is taken to be entirely the dissipative current passing through the active resistance R of the coil and therefore the Joule heat produced is calculated as I^2R.

By falsely assuming, for the sake of argument, that the entire current I in the figure below thus measured causes Ohmic heating, one obtains the Pout = I^2R values, respectively Pout/Pin values for various frequencies, which are then plotted as a function of these frequencies (See below: Curve 1---OU effect measured in the absence of 100pF capacitance. Curve 2---Apparent OU effect with 100pF added and current probe measures current I consisting of Ir and Ic). As seen from that figure in order for the current in I^2R, constituting Pout, to cause almost doubling of the OU effect at the maximum, that current must be caused by increase of the parasitic capacitance of the coil by at least 100pF. Therefore, if that additional 100pF capacitance shown in the schematic diagram is removed the coil itself should still have a capacitance of at least 100pF in order to consider that the I in I^2R, used to obtain curve 1 in the figure below is overestimated.

However, measurement of the coil capacitance using a RadioShack digital multimeter cat.22-168A shows that is not the case---the capacitance of the coil, if any, is below the measurement limits of the instrument, that is, it is way below 100pF.

Maybe it should be mentioned again that the capacitance of an element is an intrinsic property of that element. It is a constant, denoted by C. Therefore, the change with frequency connected with capacitance C of that element is only reflected in the change of current I = C dE/dt which is due to dE/dt.

Another observation which one might think is connected with capacitance is the observed reversal of the current-voltage phase shift. While at frequencies below 90kHz the voltage trace is observed to lead the current trace, as is expected with an inductive coil, at frequencies above 90kHz the current trace starts to lead the voltage trace. This may be attributed to capacitance and the frequency around 90kHz, where no current-voltage phase shift is observed. Capacitance and inductance become equal, which is the condition for resonance.

It is seen from the presented figure, however, that introduction of 100pF into the circuit curve 2) has practically no effect on the current-voltage phase shift. This means that the observed phase shift has some other nature, other than being due to capacitance alone.