Mach Effect progress

Point out news stories, on the net or in mainstream media, related to polywell fusion.

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TallDave
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Postby TallDave » Mon Jul 18, 2011 4:35 pm

n*kBolt*Te = B**2/(2*mu0) and B^.25 loss scaling? Or not so much? Hopefully we'll know soon...

93143
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Postby 93143 » Mon Jul 18, 2011 5:36 pm


Stoney3K
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Postby Stoney3K » Mon Jul 18, 2011 5:36 pm

Because we can.

93143
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Postby 93143 » Mon Jul 18, 2011 5:43 pm

Last edited by 93143 on Mon Jul 18, 2011 5:52 pm, edited 1 time in total.

TallDave
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Postby TallDave » Mon Jul 18, 2011 5:46 pm

n*kBolt*Te = B**2/(2*mu0) and B^.25 loss scaling? Or not so much? Hopefully we'll know soon...

93143
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Postby 93143 » Mon Jul 18, 2011 5:59 pm


Stoney3K
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Postby Stoney3K » Mon Jul 18, 2011 6:05 pm

Because we can.

93143
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Postby 93143 » Mon Jul 18, 2011 6:18 pm


GIThruster
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Postby GIThruster » Mon Jul 18, 2011 6:56 pm

"Courage is not just a virtue, but the form of every virtue at the testing point." C. S. Lewis

93143
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Postby 93143 » Mon Jul 18, 2011 7:13 pm

...I think you may be muddying the water here a bit. Given a thruster that works as described, it doesn't matter how well it works; it just has to work at all for energy harvesting to be possible in principle.

But I agree that it is good to point out that this isn't a device for converting supplied electrical power into local mechanical power. That idea isn't even consistent with what it does, and to maintain otherwise as Stoney3K is doing betrays a fundamental misunderstanding of mechanics.

GIThruster
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Postby GIThruster » Mon Jul 18, 2011 8:03 pm

"Courage is not just a virtue, but the form of every virtue at the testing point." C. S. Lewis

93143
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Postby 93143 » Mon Jul 18, 2011 8:38 pm

Last edited by 93143 on Mon Jul 18, 2011 8:46 pm, edited 1 time in total.

Stoney3K
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Postby Stoney3K » Mon Jul 18, 2011 8:44 pm

Because we can.

93143
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Postby 93143 » Mon Jul 18, 2011 8:53 pm

No, bad movie material. I can see it now...

It's not going to harvest all the energy ever; it's got a certain thrust rating and the mechanism it's attached to can only take so much stress. Most likely the thruster would burn out if you fed too much of the output back into the input, but even if it didn't, something else would fail long before the system got dangerous in a wider sense than "get out of the room and close the blast doors"...

Actually, that's an important point I'm not sure you got the first time. This thruster doesn't automatically power itself once it gets past a certain speed. It just consumes power and produces thrust, same as usual; after all, it doesn't know it's moving fast in whatever reference frame you happened to pick. You have to design a mechanism to extract the energy inherent in the velocity difference between the thruster (plus whatever it's pushing) and something else, and then actively feed that energy back in via the power supply. It's just that if the velocity difference exploited by this mechanism is greater than 1/E, it can produce more power than is necessary to run the thruster.

...

Feel free to be skeptical. The evidence that these things work at all, while it appears to be mounting, is still not what one might call ironclad...

GeeGee
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Postby GeeGee » Mon Jul 18, 2011 10:37 pm



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