Stories
Slash Boxes
Comments

SoylentNews is people

posted by takyon on Friday May 01 2015, @06:00PM   Printer-friendly
from the newtons-per-kilowatt dept.

An article at NasaSpaceFlight.com is claiming that the superficially reactionless EmDrive has again been tested at NASA Eagleworks, this time in hard vacuum, and the anomalous thrust is still being detected:

A group at NASA's Johnson Space Center has successfully tested an electromagnetic (EM) propulsion drive in a vacuum – a major breakthrough for a multi-year international effort comprising several competing research teams. Thrust measurements of the EM Drive defy classical physics' expectations that such a closed (microwave) cavity should be unusable for space propulsion because of the law of conservation of momentum.

With the popular explanations of thermal convection or atmospheric ionization being ruled out by operation in vacuum, and thrust thousands of times greater than expected from a photon rocket, is it time to start taking the EM Drive seriously as a fundamentally new form of propulsion, and possibly a door to new physics?

Roger Shawyer, the inventor of the EmDrive, claims that the device's efficiency will scale even further with greater levels of power, potentially enabling fast interstellar travel powered by a radioisotope thermoelectric generator or nuclear fission.

Previously: NASA Validates "Impossible" Space Drive's Thrust

 
This discussion has been archived. No new comments can be posted.
Display Options Threshold/Breakthrough Mark All as Read Mark All as Unread
The Fine Print: The following comments are owned by whoever posted them. We are not responsible for them in any way.
  • (Score: 3, Interesting) by jmorris on Friday May 01 2015, @08:11PM

    by jmorris (4844) on Friday May 01 2015, @08:11PM (#177594)

    If you expect people to accept a drive that operates on unknown principles it needs to be demonstrated in a splashy way. Apparently it just sits on a bench and quietly draws electricity and generates a very small thrust so it shouldn't be dangerous.

    Flying it on the ISS sounds a lot simpler than building an entire space vehicle to find out if it generates thrust in low orbit. Regular missions bring cargo to it, it has plenty of electrical generation capacity, and so on. And if it works it is an instant improvement to the station.

    Starting Score:    1  point
    Moderation   +1  
       Interesting=1, Total=1
    Extra 'Interesting' Modifier   0  
    Karma-Bonus Modifier   +1  

    Total Score:   3  
  • (Score: 1) by Bogsnoticus on Saturday May 02 2015, @02:38PM

    by Bogsnoticus (3982) on Saturday May 02 2015, @02:38PM (#177872)

    "If you expect people to accept a drive that operates on unknown principles it needs to be demonstrated in a splashy way."

    Given how 95% of the population accept mobile phones, computers, the internal combustion engine, electricity generation, televisions, and all sorts of modern appliances with absolutely no understanding on how they work, why should one more device whose operation is beyond their ken be hard for them to accept?

    Most will be happy if;
    - It works
    - Doesn't kill them immediately, or further down the track.
    - Doesn't shrink their testicles.
    - Doesn't produce the "brown note" and make them crap themselves when it is switched on.

    The curious 5% can entertain ourselves by producing theories, conspiracies and just generally pondering the math behind it until a suitable answer is discovered.

    --
    Genius by birth. Evil by choice.