EM Drive

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

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Re: EM Drive

Postby Diogenes » Sat Apr 16, 2016 1:20 am

‘What all the wise men promised has not happened, and what all the damned fools said would happen has come to pass.’
— Lord Melbourne —

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Re: EM Drive

Postby ScottL » Sat Apr 16, 2016 6:59 am


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Re: EM Drive

Postby kunkmiester » Sun Apr 17, 2016 12:56 am

It's one of the exciting things about this and Mach effect thrusters though. Once the science settles out to the maker level, people will be able to build space ships in their garages.

The important thing for this stuff is designs that can generate thrusts above the noise levels, but that will take quite a bit of power. While it presents it's own challenges, in many ways bigger is easier for the diy experimenter, and does make power supplies easier as well.
Evil is evil, no matter how small

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Re: EM Drive

Postby kurt9 » Sun Apr 17, 2016 3:32 am

This will likely land me in hot water, but I think I will say it anyways. These EM drive experiments have produced positive results under certain conditions. The experiments done at the Eagleworks involved the use of a plastic disk in the microwave chamber. Apparently plastic is weakly dielectric. If so, the effect is likely real and is based on Mach's Principle. Someone on Dr. Woodward's email list suggested that they do experiments with and without this plastic disk. For some reason the Eagleworks people have not done this.

Woodward and Fern have been doing experiments that have positive results. They are quite open about the technical details and the results of their experiments. If Eagleworks and others are getting positive results, its possible that they are also inadvertently producing Mach effects as well.

As far as replacing existing transportation (cars, airplanes, etc.), this drive technology would have to scale up to at least 1/3 g thrust (typical of airliner takeoffs) with reasonable input power source. Right now, Woodward's results suggest 1/100th of a g, comparable to an ion thruster, which would be useful for deep space transportation but not for replacing existing Earth-based transportation.

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Re: EM Drive

Postby paperburn1 » Sun Apr 17, 2016 3:06 pm

But if it presses against the rest of the universe then the faster it goes the less efficient it should become.
But everybody ignore the real reason this will never work , and that would be heat from the power plant.
You would have to radiate that heat out somewhere from the power plant and even with current tech that is no small feat.
For example Nuclear submarines get rid of heat by sucking in cold ocean water and spewing out hot heat sink water. This won't work in space, there isn't any ocean. To radiate this much heat into space the radiators would literally be square kilometers.
The EATCS is capable of rejecting up to 70 kW, that's what they use on the space station The PVR – the radiator Each flow path is independent and is connected to one of the two PFCSson the IEA. In total, the PVR can reject up to 14 kW of heat into deep space. The PVR weighs
1,633 pounds (740.7 kilograms) and when deployed measures 10.24 feet (3.12 meters) by 44.62
feet (13.6 meters). When the ISS assembly is complete, there will be a total of four PVRs or over100 square meters
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Re: EM Drive

Postby Carl White » Sun Apr 17, 2016 7:19 pm


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Re: EM Drive

Postby Giorgio » Sun Apr 17, 2016 8:16 pm

A society of dogmas is a dead society.

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Re: EM Drive

Postby ScottL » Sun Apr 17, 2016 9:03 pm


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Re: EM Drive

Postby Skipjack » Sun Apr 17, 2016 9:40 pm


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Re: EM Drive

Postby TheRadicalModerate » Wed Apr 20, 2016 6:45 pm

.

The assertion here is that it's quantized Unruh radiation.

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Re: EM Drive

Postby ladajo » Wed Apr 20, 2016 6:57 pm

I swear this is in another thread. I recall commenting that it seems easy enough to test regarding thrust reversal and magnitude.
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Re: EM Drive

Postby AcesHigh » Thu Apr 21, 2016 12:57 am


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Re: EM Drive

Postby ohiovr » Thu Apr 21, 2016 1:18 am


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Re: EM Drive

Postby ohiovr » Thu Apr 21, 2016 1:23 am


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Re: EM Drive

Postby ScottL » Thu Apr 21, 2016 5:47 am



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