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[–] The_Cat 0 points 35 points (+35|-0) ago 

Reading the paper, they still have a lot of trouble distinguishing a genuine thrust signal from a thermal expansion signal. I'm still betting on this thing not working and the signal being a measurement error.

That said, I am genuinely impressed with the work described in the paper, this is good experimental science and a lot of hard work.

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[–] BaldMiscreant 2 points 13 points (+15|-2) ago 

There's only one way to prove this thing works... get Musk to send one up.

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[–] The_Cat 0 points 12 points (+12|-0) ago 

The thrust is so ridiculously low that there's no way to know if it's working or not. And even if it produces thrust, chances are it's just going to be one of the many sources of measurement error, and not any "real" effect they're trying to prove the existence of.

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[–] Ban_Circumcision 2 points -1 points (+1|-2) ago 

LOL. He cant even deliver on production , itll never get done

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[–] tippyc 0 points 0 points (+0|-0) ago 

I saw one really interesting analysis that talked about the supposed thrust to power ratio of this device. Remember for a second that photons have momentum, and a spotlight actually produces a tiny amount of thrust. Well, when you compare the thrust to power, the spotlight would supposedly produce more thrust per watt of input power than the em drive.