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#460
by
TheTraveller
on 23 Mar, 2016 17:34
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more like a thick slice of Pizza that has a circular bite taken out of the
small end.
Suggest you read Roger's papers and checkout the attached drawing, which shows the 8 cavities of the lift engine. Note their shape.
The spherical housing is stated to be 790mm is diameter, which implies each of the 8 cavity is fairly small, probably something like 100mm thick, 200mm high and 400mm wide.
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#461
by
Chrochne
on 23 Mar, 2016 17:53
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http://www.bbc.com/news/magazine-35861334
Link to BBC article explaining the contents of the Horizon episode, Project Greenglow: The Quest for Gravity Control, broadcast at 20:00 GMT on BBC Two tonight
Thank you for the BBC article. Upon reading it, I noticed the following quote in this BBC article:
John Ellis at Cern is particularly scathing: "With the EmDrive, unlike a rocket, nothing comes out of it. So I don't see how you can generate momentum out of nothing."
Shawyer uses only Maxwell's laws and Special Relativity (not General Relativity !) to try to explain his EM Drive claimed anomalous results. Ellis, is a British theoretical physicist who is currently Clerk Maxwell Professor of Theoretical Physics at King's College London.
Ellis attended King's College, Cambridge, earning his Ph.D. in physics in 1971. After brief post-doc positions at SLAC and Caltech, he went to CERN and has held an indefinite contract there since 1978. He was awarded the Maxwell Medal and the Paul Dirac Prize by the Institute of Physics in 1982 and 2005 respectively, and is an Elected Fellow of the Royal Society of London since 1985 and of the Institute of Physics since 1991.
With this background and interest, Ellis is the kind of scientist that Shawyer should reach for help, he could drive to see him.
Both Shawyer and Ellis are quoted in the BBC article. So Shawyer must know about Ellis's opinion expressed in the BBC article.
Why doesn't Shawyer drive to see people like Ellis and tell him: please look at my experiments, I think they show an anomalous force. The engineering and scientific community does not accept my explanation, could you please help me analyze my experiments? Could you please help me with my force balance analysis and microwave force equations that are not accepted by the engineering and scientific community?
Since Prof. Ellis was interviewed by the BBC for the same program that featured Shawyer and Ellis twice won the highest award in the Gravity Research Foundation essay competition (in 1999 and 2005), it is not unreasonable to assume that Ellis would be willing to help Shawyer, and give him his scientific opinion.
Interesting opinion Dr. Rodal. However, Mr. Shawyer is ridiculed from the start he came up with the idea. If I would be on his place, I would be very careful to work with science community. Perhaps, it is the science community and those respectable scientists you speak about, that need to approach Mr. Shawyer now. He tried to approach them for decades, only to be harshly put back to "his place". And please do not take this as offensive from my side. I am just trying to read what he must went trought.
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#462
by
rfmwguy
on 23 Mar, 2016 18:18
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BBC Horizon should be playing now...when their link appears...be sure and share!
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#463
by
TheTraveller
on 23 Mar, 2016 18:22
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BBC Horizon should be playing now...when their link appears...be sure and share!
It will be probably be Geo blocked outside the UK.
My phone says 30 minutes till it starts.
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#464
by
Chrochne
on 23 Mar, 2016 18:27
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BBC Horizon should be playing now...when their link appears...be sure and share!
http://www.time4tv.com/2011/09/bbc-two.phptry this... I think and click on streams until you find working one.
PS: I just checked it with the programm it is live and It works for people outside UK.
It will pop window out, where stream works. You might want to check your ad-blocks if dont and allow it for the time of watching and than restore it back...
http://www.bbc.co.uk/bbctwo/programmes
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#465
by
rfmwguy
on 23 Mar, 2016 18:38
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#466
by
TheTraveller
on 23 Mar, 2016 18:40
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BBC Horizon should be playing now...when their link appears...be sure and share!
http://www.time4tv.com/2011/09/bbc-two.php
try this... I think and click on streams until you find working one.
PS: I just checked it with the programm it is live and It works for people outside UK.
It will pop window out, where stream works. You might want to check your ad-blocks if dont and allow it for the time of watching and than restore it back...
http://www.bbc.co.uk/bbctwo/programmes
Stream 3 works for me. Farming video on now, then GreenGlow.
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#467
by
Star One
on 23 Mar, 2016 18:54
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Popular Mechanics article today on EMDrive:
http://www.popularmechanics.com/space/news/a20076/the-emdrive-will-undergo-peer-review-that-it-wont-pass/
On record as dismissing the possibility, now seems they're covering their bets:
"Of course, there's the small-fraction-of-a-chance that it could survive the peer review process, at which point it maybe, just maybe, EmDrive technology has a ghost of a chance of being a reality."
Wasn't it the very same PM that recently featured an article about the upper stage for ExoMars exploding which it doesn't actually seem to have?
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#468
by
TheTraveller
on 23 Mar, 2016 19:32
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They showed the air track with an EmDrive on a self contained, self powered platform moving by itself.
Have videoed the segment & will shortly post.
Nicely done Roger!!!!
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#469
by
tchernik
on 23 Mar, 2016 19:38
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They also show Dr. Tajmar, and he seems to still be working at it. Sweet.
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#470
by
TheTraveller
on 23 Mar, 2016 19:41
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They also show Dr. Tajmar, and he seems to still be working at it. Sweet.
Dr. Tajmar's EmDrive build is about as bad as it gets.
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#471
by
Monomorphic
on 23 Mar, 2016 19:57
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Roger told me the Flight Thruster worked in TE013 mode.
Got TE013 in the "pizza slice" frustum. I could likely adjust the dimensions to make TE013 work at 2.45Ghz.
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#472
by
Oakey
on 23 Mar, 2016 19:59
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Anyone know who the military guy 'coyote' is?
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#473
by
Rodal
on 23 Mar, 2016 20:00
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more like a thick slice of Pizza that has a circular bite taken out of the
small end.
Suggest you read Roger's papers and checkout the attached drawing, which shows the 8 cavities of the lift engine. Note their shape.
The spherical housing is stated to be 790mm is diameter, which implies each of the 8 cavity is fairly small, probably something like 100mm thick, 200mm high and 400mm wide.
Thank you. What paper is is the attached Fig. 5 from? Please provide a link (preferably) or the reference (authors, title, journal, date, etc.).
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#474
by
rfmwguy
on 23 Mar, 2016 20:03
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They also show Dr. Tajmar, and he seems to still be working at it. Sweet.
Dr. Tajmar's EmDrive build is about as bad as it gets.
My hope is that he will build a more "conventional" size...glad he's pursuing.
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#475
by
TheTraveller
on 23 Mar, 2016 20:05
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Self powered EmDrive on an air track.
More to add as I process them.
BTW Roger told me all the tech he could show had to be old stuff.
Images Courtesy of BBC Horizon.
(Mod note - Be sure to include "Image Courtesy of BBC Horizon")
Well past my bedtime. Nite all. Yes I did record the whole episode.
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#476
by
TheTraveller
on 23 Mar, 2016 20:17
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Thank you. What paper is is the attached Fig. 5 from? Please provide a link (preferably) or the reference (authors, title, journal, date, etc.).
Try Roger's latest & peer reviewed paper:
http://www.emdrive.com/IAC14publishedpaper.pdf
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#477
by
Monomorphic
on 23 Mar, 2016 20:23
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Self powered EmDrive on an air track.
More to add as I process them.
BTW Roger told me all the tech he could show had to be old stuff.
Images Courtesy of BBC Horizon.
(Mod note - Be sure to include "Image Courtesy of BBC Horizon")
Well past my bedtime. Nite all. Yes I did record the whole episode.
HA! He's using two airtracks with the emdrive mounted between. An idea I know I've discussed with others in the past.
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#478
by
Monomorphic
on 23 Mar, 2016 20:29
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This image is particularly important. It shows that the large end-plate is perfectly square. It also shows the emdrive next to standard sizes of aluminum angle. I can use these standard sizes to get almost exact dimensions for his c-band emdrive. Then it should be a simple scaling problem to get it working at 2.45Ghz.
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#479
by
Star One
on 23 Mar, 2016 20:44
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Did you see this magazine article from the BBC?
One device survived, almost unnoticed, from the Greenglow days - a propellant-less electromagnetic or EmDrive, created by British aerospace engineer Roger Shawyer.
What sets the EmDrive apart from other concepts? As Shawyer puts it: "We're no longer looking to control gravity itself. We're beating gravity the smart way." Because the EmDrive actually appears to do something. In tests, it seems to move under its own steam.
http://www.bbc.co.uk/news/magazine-35861334
