SoylentNews is people
SoylentNews
from the Would-an-EnDrive-be-half-as-wide? dept.
The man behind the disputed thruster technology EmDrive has published a presentation detailing the third generation of the device. Roger Shawyer envisions EmDrive 3.0 enabling personal flying vehicles and a "space elevator without cables":
[Although] the second generation of the EmDrive can theoretically produce 3 tonnes of thrust for 1 kilowatt of power, it isn't able to move very far, so it is only useful for marine applications or for diverting asteroids, like in the new CBS sci-fi TV drama Salvation.
Shawyer has long said that his aim for inventing the EmDrive was to help get satellites into space cheaply, to enable more applications and new ways for the human race to combat global warming and the energy crisis. Essentially, the EmDrive needs to be able to move and work as well as a conventional rocket, in order to be a viable solution.
To negate these shortfalls, Shawyer's firm Satellite Propulsion Research Ltd (SPR) has also been researching a third generation of the EmDrive, which solved the acceleration problem by reducing the specific thrust.
So instead of getting 3 tonnes of thrust for every kilowatt, substantially less thrust is produced – but it can be used to accelerate the device (more about this theory can be read in a paper Shawyer presented in Beijing in 2013).
Speaking of that TV show, Roger would like some credit please.
Related UK patent application. Also at Next Big Future.
Previously: Finnish Physicist Says EmDrive Device Does Have an Exhaust
It's Official: NASA's Peer-Reviewed EmDrive Paper Has Finally Been Published
Space Race 2.0: China May Already be Testing an EmDrive in Orbit
Physicist Uses "Quantised Inertia" to Explain Both EmDrive and Galaxy Rotation
(Score: 4, Insightful) by HiThere on Saturday August 12 2017, @11:44PM (3 children)
IIUC, the one you're referring to is the version one of the EMDrive. And when I read yesterday that appeared to be the only one actually ever built. Versions 2 and 3 require some sort of superconductor, so that probably means liquid helium. Patent applied for doesn't mean that an actual model has ever been built. Neither does patent granted...though it OUGHT to mean a working model had been demonstrated to the patent examiner.
Javascript is what you use to allow unknown third parties to run software you have no idea about on your computer.
(Score: 2) by kaszz on Sunday August 13 2017, @12:06AM (1 child)
emdrive.com/3GEMDrive.pdf is the version one?
(Score: 2) by HiThere on Sunday August 13 2017, @06:42PM
Sorry, don't know or have a link. Until something definite turns up I'm not going to be real interested...though I sure would have been when I was younger. Dreaming with a possible reality can be great fun.
Javascript is what you use to allow unknown third parties to run software you have no idea about on your computer.
(Score: 2) by JoeMerchant on Sunday August 13 2017, @08:29PM
MRIs have been running LN2 superconductors for a long time now.
🌻🌻 [google.com]