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In a Comprehensive Test, The 'Impossible' EM Drive Has Failed to Produce Thrust… Again
https://www.sciencealert.com ^ | 5 APRIL 2021 | PAUL M. SUTTER, UNIVERSE TODAY

Posted on 04/05/2021 7:29:02 AM PDT by Red Badger

(© Elvis Popovic/CGS Society) PHYSICS In a Comprehensive Test, The 'Impossible' EM Drive Has Failed to Produce Thrust… Again PAUL M. SUTTER, UNIVERSE TODAY5 APRIL 2021 The EM Drive is a hypothetical rocket that proponents claim can generate thrust with no exhaust. This would violate all known physics. In 2016, a team at NASA's Eagleworks lab claimed to measure thrust from an EM Drive device, the news of which caused quite a stir.

The latest attempt to replicate the shocking results has resulted in a simple answer: the Eagleworks measurement was from heating of the engine mount, not any new physics.

The EM Drive is a relatively simple device: it's an empty cavity that isn't perfectly symmetrical.

According to proponents of the EM Drive, by bouncing electromagnetic radiation within the cavity, the tapering in the cavity result in a net thrust of the engine, despite nothing leaking from the drive.

In 2016, a team at NASA's Eagelworks lab reportedly measured a net thrust from their EM Drive experiment, which they claimed was a revolution in our understanding of physics and the future of spaceflight.

Physicists were…skeptical. Conservation of momentum dictates that a stationary object cannot move without a net force acting on it, which the Eagleworks experiment claimed to violate.

But conservation of momentum has been tested countless times over centuries – in fact, that principle forms the bedrock of almost every single theory of physics. So, in essence, almost every time physics is tested, so is the conservation of momentum.

The results of the Eagleworks experiment were not very strong. While the team claimed to measure a thrust, it wasn't very statistically significant, and appeared to be a result of "cherry-picking" – the authors watching random fluctuations and waiting for the right time to report their results.

VIDEO AT LINK....................

But in the spirit of scientific replication, a team at the Dresden University of Technology led by Professor Martin Tajmar rebuilt the Eagleworks experimental setup.

And they found squat.

Reporting their results in the Proceedings of Space Propulsion Conference 2020, Professor Tajmar said:

"We found out that the cause of the 'thrust' was a thermal effect. For our tests, we used NASAs EM Drive configuration from White et al. (which was used at the Eagleworks laboratories, because it is best documented and the results were published in the Journal of Propulsion and Power.)

With the aid of a new measuring scale structure and different suspension points of the same engine, we were able to reproduce apparent thrust forces similar to those measured by the NASA team, but also to make them disappear by means of a point suspension."

In essence, the Eagleworks EM Drive apparent thrust came from a heating of the scale they used to measure the thrust, not from any movement of the drive itself.

"When power flows into the EM Drive, the engine warms up. This also causes the fastening elements on the scale to warp, causing the scale to move to a new zero point. We were able to prevent that in an improved structure," Professor Tajmar continued.

His conclusion puts the final nail in the coffin for EM Drive dreams: "Our measurements refute all EM Drive claims by at least three orders of magnitude."

This article was originally published by Universe Today. Read the original article.


TOPICS: Astronomy; Business/Economy; History; Science
KEYWORDS: astronomy; emdrive; physics; rocket; science; stringtheory
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To: JimRed

They apparently were hoping to push against magnetism or magnetic lines of force.................


21 posted on 04/05/2021 7:57:37 AM PDT by Red Badger ("We've always been at war with Climate Change, Winston."..............................)
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To: Red Badger

Serious devices are not made with all thread.

Ok, they have had their fun, they tried and it didn’t work. Quit wasting time and money.


22 posted on 04/05/2021 7:58:14 AM PDT by Sequoyah101 (Politicians are only marginally good at one thing, being politicians. Otherwise they are fools.)
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To: Red Badger

Perhaps they wanted to push against the Aether....


23 posted on 04/05/2021 7:59:14 AM PDT by Army Air Corps (Four Fried Chickens and a Coke)
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To: Red Badger
They really screwed this up. All they needed was a flux capacitor and start up surge of 1.21 Gigawatts.


24 posted on 04/05/2021 8:01:44 AM PDT by Candor7 ((Obama Fascism:http://www.americanthinker.com/2009/05/barack_obama_the_quintessentia_1.html) )
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To: JimRed

True there is nothing to push against in space. But “pushing against air’ is how JET engines work. Rocket engines in space work by using the equal and opposite reaction to the expelling of matter (mass from the rocket exhaust) from the rocket engine. Just like if you were in space, and had a sack of rocks. By throwiing them down past your feet, one after another, you would propel your body up, faster with each rock thrown.


25 posted on 04/05/2021 8:02:54 AM PDT by 2harddrive (Go to www.CodeIsFreeSpeech.com for 10 FREE 3D-printer gun blueprints!)
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To: Red Badger

The Original Story...

https://www.universetoday.com/150754/in-a-comprehensive-new-test-the-emdrive-fails-to-generate-any-thrust/
________________________
It’s a sidebar matter, but I think it’s good practice to give the “clicks” to the venue that first published the content.
That stated, I really agree an alternate is better if the original site is “spammy,” or an objectionable cauldron of setting leftism; some sites deserve zero sport.


26 posted on 04/05/2021 8:07:02 AM PDT by HKMk23 (INADEQUACY: If this keeps up, we may not be able to let you help us anymore.)
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To: Red Badger

They were attempting to use energy movement within, but that’s like a balloon containing gases. The balloon has forces acting within it, but the balloon does not move because none of those gases are propelling the balloon.


27 posted on 04/05/2021 8:11:06 AM PDT by CodeToad (Arm Up! They Have!)
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To: CodeToad

If only they had some Dilithium Crystals..............


28 posted on 04/05/2021 8:13:41 AM PDT by Red Badger ("We've always been at war with Climate Change, Winston."..............................)
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To: Red Badger

29 posted on 04/05/2021 8:26:51 AM PDT by bigbob
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To: bigbob

I remember when the Obamaroids first took over, that they were in a meeting with some energy industry CEOs and some of the stuff the Obamaroids wanted were impossible. One CEO remarked, “That is against the Laws of Physics!”

The Obamaroids replied, “Who wrote those laws? We’ll get them repealed!”.................


30 posted on 04/05/2021 8:31:20 AM PDT by Red Badger ("We've always been at war with Climate Change, Winston."..............................)
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To: Red Badger

It’sgood that they cleared this up.


31 posted on 04/05/2021 8:34:58 AM PDT by Kevmo (The tree of liberty is thirsty.)
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To: Red Badger

Strap a windmill to it!


32 posted on 04/05/2021 8:38:59 AM PDT by MtnClimber (For photos of Colorado scenery and wildlife, click on my screen name for my FR home page.)
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To: Kevmo

Somebody will start it all over again.................


33 posted on 04/05/2021 8:40:10 AM PDT by Red Badger ("We've always been at war with Climate Change, Winston."..............................)
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To: Red Badger

How much taxpayer money was spent for the NASA experiment that was a probable as a perpetual motion machine?


34 posted on 04/05/2021 8:42:13 AM PDT by The Great RJ ("Socialists are happy until they run olut of other people's money." Margaret Thatcher)
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To: Red Badger

As long as there are legit studies like this to point the curioso towards, the story will luze steam.


35 posted on 04/05/2021 8:43:48 AM PDT by Kevmo (The tree of liberty is thirsty.)
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To: Red Badger

Lol. It’s just astounding sometimes how advanced scientific thinking was 500 years or so ago...Newton, Laplace, Euler, Galileo, Kepler, Copernicus. Not only did they risk their necks (literally) to confront dogma but they conceptualized both the principle and derived mathematical underpinnings without any of the tools we takes for granded today.

One has to wonder if aliens didn’t come and inject the human race with some super-DNA, almost all of which has since been bred-out and we’re left with the kind of “science” that is shoved down our throats today by people who can barely spell the word.


36 posted on 04/05/2021 8:43:59 AM PDT by bigbob
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To: libertylover

If he were, he’d have had to sign up under a new user name about 50 times, because he’d forget his login. :^)


37 posted on 04/05/2021 8:45:33 AM PDT by SunkenCiv (Imagine an imaginary menagerie manager imagining managing an imaginary menagerie.)
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To: Red Badger

And, in other news, Light can’t be “lensed” by gravity ...

/s

(Note WELL the “/s” tag pilgrims)


38 posted on 04/05/2021 8:45:55 AM PDT by _Jim (Save babies)
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To: Kevmo

Steam Power would be more practical in space.

See Asimov’s
https://en.wikipedia.org/wiki/The_Martian_Way.................


39 posted on 04/05/2021 8:59:20 AM PDT by Red Badger ("We've always been at war with Climate Change, Winston."..............................)
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To: bigbob

Euler did not risk his neck. By limiting himself to mathematics and physics . He stayed out of politics DELIBERATELY. He liked his head and wanted to keep it above his shoulders.


40 posted on 04/05/2021 9:17:08 AM PDT by Nateman (Keep Liberty Alive! Article V)
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