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Leaked NASA Paper Suggests The 'Impossible' EM Drive Really Does Work (sciencealert.com)

A source close to NASA Eagleworks has leaked the test results of the 'impossible' EM Drive. While it's important to note that the results that have been leaked haven't been published in an academic journal, they do suggest that the system works and is capable of generating force of 1.2 millinewtons per kilowatt in a vacuum. ScienceAlert reports: The paper concludes that, after error measurements have been accounted for, the EM Drive generates force of 1.2 millinewtons per kilowatt in a vacuum. That's not an insignificant amount -- to put it into perspective, the super-powerful Hall thruster generates force of 60 millinewtons per kilowatt, an order of magnitude more than the EM Drive. But the Hall thruster uses fuel and requires a spacecraft to carry heavy propellants, and that extra weight could offset the higher thrust, the NASA Eagleworks team conclude in the paper. Light sails on the other hand, which are currently the most popular form of zero-propellant propulsion, use beams of sunlight to propel them forward rather than fuel. And they only generate force up to 6.67 micronewtons per kilowatt - two orders of magnitude less than NASA's EM Drive, says the paper. The NASA Eagleworks team measured the EM Drive's force using a low thrust pendulum at the Johnson Space Centre, and the tests were performed at 40, 60, and 80 watts. They were looking for any sign that the thrust could be a result of another anomaly in the system, but for now, that doesn't appear to be the case. "The test campaign included a null thrust test effort to identify any mundane sources of impulsive thrust, however none were identified," the team, led by Harold White, concluded in the paper. "Thrust data from forward, reverse, and null suggests that the system is consistently performing with a thrust to power ratio of 1.2 +/- 0.1 millinewtons per kilowatt." But the team does acknowledge that more research is needed to eliminate the possibility that thermal expansion could be somehow skewing the results. They also make it clear that this testing wasn't designed to optimize the thrust of the EM Drive, but simply to test whether it worked, so further tweaking could make the propulsion system more efficient and powerful.

10 of 711 comments (clear)

  1. This is interesting by 50000BTU_barbecue · · Score: 5, Funny

    Because if Trump wins, we need a way to leave this planet...

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    Mostly random stuff.
    1. Re:This is interesting by mcswell · · Score: 4, Funny

      I thought we invented a fusion reactor that would go on the back of your car? Back in 2015, or before.

    2. Re:This is interesting by Anonymous Coward · · Score: 1, Funny

      EM drive works, Cubs win the world series, election day tomorrow starring Donald Trump.

      Let's just hope this is the season finale, and not the series finale.

    3. Re:This is interesting by CrimsonAvenger · · Score: 4, Funny

      I use to simplify the units and not worry about the name of the unit per say>/B> and get very good grades.

      I'm assuming you didn't get very good grades in spelling, grammar, that sort of thing...

      That said, if you're ignoring units and just assuming, you don't deserve very good grades in a physics exam. Math exam, maybe....

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      "I do not agree with what you say, but I will defend to the death your right to say it"
    4. Re:This is interesting by belthize · · Score: 4, Funny

      Kudo's to you. You're the hero we really need, if somebody tells you "Don't touch the stove it's hot and will burn you" you slap your hand on their and hold it there till it's a piece of crispy bacon. Thanks Anonymous Hero guy.

  2. I blame 2016 by pushing-robot · · Score: 5, Funny

    The physical laws went out the door months ago.

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    How can I believe you when you tell me what I don't want to hear?
  3. It's the Flux Capacitor by dunkindave · · Score: 4, Funny

    And if they pump in 1.21 Gigawatts, they're going to see some serious shit!

  4. Re: 1/3 lightspeed by gringer · · Score: 5, Funny

    Police Officer: "The light was red; you went through an intersection on a stop light"

    Starship Officer: "It was green at the speed I was going"

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    Ask me about repetitive DNA
  5. Re:Yes, nobody knows, yes, poop in some bamboo by serviscope_minor · · Score: 3, Funny

    Or maybe not. 1500 years ago someone discovered that if you burned charcoal mixed with livestock poop in a bamboo shoot, you got a similarly weak thrust. ... We're still in the "poop in a tube" stage of EM drives, so we really don't know what the potential is.

    1,500 years ago people also discovered (repeatedly) how to turn base matals into gold, that draining one of the humours fixed the disease causing that humour and that barnacle geese hatched from barnacles attached to driftwood.

    We're not at the poop-in-a-tube stage of the EM drive, we're at the leeches to drain blood stage.

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    SJW n. One who posts facts.
  6. take THAT, Slartibartfast! by Thud457 · · Score: 5, Funny

    I would think a space drive powered by experimental error would be quite useful, considering what a unlimited resource it could tap.

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    the preceding comment is my own and in no way reflects the opinion of the Joint Chiefs of Staff