NASA: EM Drive shown to work in space-like vacuum

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NASA: EM Drive shown to work in space-like vacuum

#1  Postby Steve » May 01, 2015 3:15 pm

NASA: EM Drive shown to work in space-like vacuum

I have no idea what I just read, but I am sure some folks here will.

The EM drive is controversial in that it appears to violate conventional physics and the law of conservation of momentum; the engine, invented by British scientist Roger Sawyer, converts electric power to thrust without the need for any propellant by bouncing microwaves within a closed container. So, with no expulsion of propellant, there’s nothing to balance the change in the spacecraft’s momentum during acceleration. Hence the skepticism. But as stated by NASA Eagleworks scientist Harold White:
[T]he EM Drive’s thrust was due to the Quantum Vacuum (the quantum state with the lowest possible energy) behaving like propellant ions behave in a MagnetoHydroDynamics drive (a method electrifying propellant and then directing it with magnetic fields to push a spacecraft in the opposite direction) for spacecraft propulsion.


The link above has more links.
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Re: NASA: EM Drive shown to work in space-like vacuum

#2  Postby trubble76 » May 02, 2015 12:40 pm

An idiot's guide would be interesting to me. :scratch:
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Re: NASA: EM Drive shown to work in space-like vacuum

#3  Postby lucek » May 02, 2015 12:51 pm

I've read about this and an anomalous signal in a noisy system with no theoretical backing doesn't constitute proof.
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Another space propulsion thread

#4  Postby twistor59 » May 03, 2015 1:03 pm

http://blogs.discovermagazine.com/outthere/2014/08/06/nasa-validate-imposible-space-drive-word/#.VUYasTdsdpS

The story begins several years back with a British inventor named Roger Shawyer and his EmDrive, a prototype rocket engine which he claimed generated thrust by bouncing microwaves around in an enclosed metal funnel. Since no mass or energy emerged from the engine, Shawyer’s claim was another way of saying that he’d found a way to violate the conservation of momentum. In Baez’s words, “this is about as plausible as powering a spaceship by having the crew push on it from the inside.” Shawyer argued that he was exploiting a loophole within general relativity. Baez calls his explanation “mumbo jumbo.”
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Re: Another space propulsion thread

#5  Postby campermon » May 03, 2015 1:17 pm

Awesome!

I hear that he's working on a hesienberg compensator at the moment.

:D
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Re: Another space propulsion thread

#6  Postby twistor59 » May 03, 2015 1:26 pm

campermon wrote:Awesome!

I hear that he's working on a hesienberg compensator at the moment.

:D


You can get them from China off ebay
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Re: Another space propulsion thread

#7  Postby campermon » May 03, 2015 1:34 pm

twistor59 wrote:
campermon wrote:Awesome!

I hear that he's working on a hesienberg compensator at the moment.

:D


You can get them from China off ebay


Are you sure?











did you see what I did then?
:mrgreen:
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Re: Another space propulsion thread

#8  Postby Made of Stars » May 03, 2015 1:39 pm

Nerds. :roll:

:lol:
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Re: Another space propulsion thread

#9  Postby campermon » May 03, 2015 1:41 pm

Made of Stars wrote:Nerds. :roll:

:lol:


And proud!

:geek:
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Re: Another space propulsion thread

#10  Postby Made of Stars » May 03, 2015 1:44 pm

campermon wrote:
Made of Stars wrote:Nerds. :roll:

:lol:


And proud!

:geek:

Speaking of nerds: I took my son to get his eyes checked yesterday, and he's getting new glasses. The first set of frames made him look like Joe 90.

Back to improbability drives - there's another thread about Emdrive kicking around somewhere. Some mod should get onto that. :coffee:

Addit: t=49465
Last edited by Made of Stars on May 03, 2015 1:49 pm, edited 1 time in total.
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Re: Another space propulsion thread

#11  Postby campermon » May 03, 2015 1:49 pm

Made of Stars wrote:
campermon wrote:
Made of Stars wrote:Nerds. :roll:

:lol:


And proud!

:geek:

Speaking of nerds: I took my son to get his eyes checked yesterday, and he's getting new glasses. The first set of frames made him look like Joe 90.

Back to improbability drives - there's another thread about Emdrive kicking around somewhere. Some mod should get onto that. :coffee:


Joe 90 s cool! MrsC was told, as a child, that he worked at Tandy's. She still thinks it's true! :lol: :lol: :lol:

Haz eys open for similar threads.

:thumbup:
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Re: Another space propulsion thread

#12  Postby BlackBart » May 03, 2015 2:32 pm

I never did see that episode of Joe 90 where the professor got a visit from Child protection services. :coffee:
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Re: Another space propulsion thread

#13  Postby campermon » May 03, 2015 2:40 pm


!
GENERAL MODNOTE
MoS has entered to jump co-ordinates. please extinguish your cigarettes and standby...
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Re: NASA: EM Drive shown to work in space-like vacuum

#14  Postby campermon » May 03, 2015 2:48 pm

Yikes! We nearly jumped into a black hole there folks!

:D
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Re: NASA: EM Drive shown to work in space-like vacuum

#15  Postby twistor59 » May 03, 2015 2:57 pm

Maybe it should be in pseudoscience. I only posted in physics because it had John Baez and Sean Carroll in my link, although they're both there saying it's bollocks!
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Re: NASA: EM Drive shown to work in space-like vacuum

#16  Postby campermon » May 03, 2015 3:05 pm

twistor59 wrote:Maybe it should be in pseudoscience. I only posted in physics because it had John Baez and Sean Carroll in my link, although they're both there saying it's bollocks!


I cannae do it captain - the jump engines need to cool down!

:grin:
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Re: NASA: EM Drive shown to work in space-like vacuum

#17  Postby Bubalus » May 03, 2015 3:08 pm

Where's my towel! :ahrr:
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Re: NASA: EM Drive shown to work in space-like vacuum

#18  Postby campermon » May 03, 2015 3:13 pm

:lol:

be careful now - I might read you some of my poetry...
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Re: NASA: EM Drive shown to work in space-like vacuum

#19  Postby Steve » May 03, 2015 3:43 pm

Wow. I was busy with work and I missed the merge. I am sorry I put the word NASA in the title as I see how these drives can backfire and produce push out of nothing in completely the wrong direction.
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Re: NASA: EM Drive shown to work in space-like vacuum

#20  Postby trubble76 » May 03, 2015 3:48 pm

Surely it could be settled rather easily, by experimentation? If it works, it works, if it don't, it don't. Obviously, it sounds like bunk but then so does a lot of stuff that is now mainstream, why can't he settle the question with some data?

What am I missing? :scratch:
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