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DeathMonkey writes in with an article from Science Alert :

After months of speculation and leaked documents, NASA's long-awaited EM Drive paper has finally been peer-reviewed and published [open, DOI: 10.2514/1.B36120] [DX]. And it shows that the 'impossible' propulsion system really does appear to work. The NASA Eagleworks Laboratory team even put forward a hypothesis for how the EM Drive could produce thrust – something that seems impossible according to our current understanding of the laws of physics.

In case you've missed the hype, the EM Drive, or Electromagnetic Drive, is a propulsion system first proposed by British inventor Roger Shawyer back in 1999. Instead of using heavy, inefficient rocket fuel, it bounces microwaves back and forth inside a cone-shaped metal cavity to generate thrust. According to Shawyer's calculations, the EM Drive could be so efficient that it could power us to Mars in just 70 days.

takyon: Some have previously dismissed EmDrive as a photon rocket. This is addressed in the paper along with other possible sources of error:

The eighth [error:] photon rocket force, RF leakage from test article generating a net force due to photon emission. The performance of a photon rocket is several orders of magnitude lower than the observed thrust. Further, as noted in the above discussion on RF interaction, all leaking fields are managed closely to result in a high quality RF resonance system. This is not a viable source of the observed thrust.

[...] The 1.2  mN/kW performance parameter is over two orders of magnitude higher than other forms of "zero-propellant" propulsion, such as light sails, laser propulsion, and photon rockets having thrust-to-power levels in the 3.33–6.67  μN/kW (or 0.0033–0.0067  mN/kW) range.

Previously: NASA Validates "Impossible" Space Drive's Thrust
"Reactionless" Thruster Tested Again, This Time in a Vacuum
Explanation may be on the way for the "Impossible" EmDrive
Finnish Physicist Says EmDrive Device Does Have an Exhaust
EmDrive Peer-Reviewed Paper Coming in December; Theseus Planning a Cannae Thruster Cubesat

Original Submission

1. "DeathMonkey" - https://soylentnews.org/~DeathMonkey/
2. " Science Alert " - http://www.sciencealert.com/it-s-official-nasa-s-peer-reviewed-em-drive-paper-has-finally-been-published
3. "speculation and leaked documents" - https://soylentnews.org/leaked-nasa-paper-shows-the-impossible-em-drive-really-does-work
4. "published" - http://arc.aiaa.org/doi/10.2514/1.B36120
5. "DX" - http://dx.doi.org/10.2514/1.B36120
6. "Roger Shawyer" - http://www.ibtimes.co.uk/nasa-validates-emdrive-roger-shawyer-says-aerospace-industry-needs-watch-out-1499141
7. "70 days" - https://www.sciencealert.com/nasa-has-trialled-an-engine-that-would-take-us-to-Mars-in-10-weeks
8. "photon rocket" - https://en.wikipedia.org/wiki/Photon_rocket
9. "NASA Validates "Impossible" Space Drive's Thrust" - https://soylentnews.org/article.pl?sid=14/08/01/1749225
10. ""Reactionless" Thruster Tested Again, This Time in a Vacuum" - https://soylentnews.org/article.pl?sid=15/05/01/0325200
11. "Explanation may be on the way for the "Impossible" EmDrive" - https://soylentnews.org/article.pl?sid=16/04/21/1538207
12. "Finnish Physicist Says EmDrive Device Does Have an Exhaust" - https://soylentnews.org/article.pl?sid=16/06/16/131232
13. "EmDrive Peer-Reviewed Paper Coming in December; Theseus Planning a Cannae Thruster Cubesat" - https://soylentnews.org/article.pl?sid=16/09/04/2214203
14. "Original Submission" - https://soylentnews.org/submit.pl?op=viewsub&subid=17073

printed from SoylentNews, It's Official: NASA's Peer-Reviewed EmDrive Paper Has Finally Been Published on 2024-04-24 08:41:05