EmDrive Power to Mars in Ten Weeks? Bob Zimmerman, BehindtheBlack.com

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11-15-2016

(Photo: A fuel-free engine, described as 'impossible' to create, may now be a step closer to reality, according to leaked Nasa documents

Read more: http://www.dailymail.co.uk/sciencetech/article-3939512/The-fuel-free-EmDrive-NOT-impossible-leading-experts-admit-say-baffled-actually-works.html#ixzz4Q8iycP9Q )

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EmDrive Power to Mars in Ten Weeks? Bob Zimmerman, BehindtheBlack.com

“..A NASA paper outlining work that appears to substantiate the EmDrive concept that involves the production of a thrust in a way that violates the laws of physics was leaked last week, and this story tries to figure out what has been learned.

To me, the key is this paragraph:

In essence, the NASA EmDrive in the paper consists of a closed copper cone, the inside of which is being bombarded with microwaves. To test the EmDrive, the researchers powered it with 40, 60, and 80 watts and found that it generated up to 58, 128, and 119 micronewtons of thrust, respectively. Given that this “anomaly” was still observed by White and his colleagues after accounting for error, this suggests that the results of the experiment show an EmDrive is indeed possible.

Based on these results, the researchers estimated that their contraption would be capable of generating approximately 1.2 millinewtons of thrust per kilowatt were they to scale up the power input. To put this in perspective, the Hall thruster—one of the most powerful in development and powered by ejecting plasma—generates about 60 millinewtons of thrust per kilowatt. [emphasis mine]

Interestingly , the article did not comment on how little thrust this EmDrive test produced. This tiny amount, however, to me suggests strongly that what they are measuring is some outside force acting on the drive that they have missed that would invalidate all the theories listed in the article. And even if the thrust drive does prove a new component of fundamental physics, as suggested in the article, the system simply doesn’t appear to produce enough thrust to make it practical.”

http://behindtheblack.com/behind-the-black/points-of-information/the-fact-and-fiction-of-the-nasa-emdrive-paper-leak/

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“…The paper, which has since been accepted for publication in the AIAA’s Journal of Propulsion and Power, describes a series of successful tests carried out at NASA’s Johnson Space Center in Texas.

Essentially, the EmDrive generates thrust by harnessing particles of light and bouncing microwaves around inside a closed chamber, shaped like a cone.

The movement generates thrust at the slim end of the cone, which drives the engine forward.

But as it has no fuel to eject, this system goes against Newton’s Third Law, which states that for every action, there is an equal and opposite reaction.

‘The issue involved here is whether the experiment is seeing something real or not,’ Jim Woodward, a physicist at California State-Fullerton, told Motherboard.

‘I know Paul [March, one of the lead researchers] does clean work and to be honest, I suspect there may really be something here.

‘But the result they’re seeing can’t actually be explained in terms of the theory they’re proposing. So the question is: what is causing it?’

Read more: http://www.dailymail.co.uk/sciencetech/article-3939512/The-fuel-free-EmDrive-NOT-impossible-leading-experts-admit-say-baffled-actually-works.html#ixzz4Q8hnCkuu

2 months ago
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