Half a croissant, on a plate, with a sign in front of it saying '50c'
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Self-propelled popcorn stand

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By the use of an EmDrive thingy, it should be possible to propel the popcorn stand to the customer's location, whilst microwaving the popcorn, a net saving of energy.

Edit - Now with jacket potatoes option, which obviously takes a bit longer, so suitable for deliveries in the suburbs.

not_morrison_rm, Sep 10 2016

EmDrive video from the researcher https://www.youtube...wY&feature=youtu.be
New as of September 2016 [beanangel, Sep 15 2016]

I'm sure this must be an acceptable alternative... Maizechinegun
[normzone, Sep 16 2016]

NASA's EM Drive peer-reviewed and published. http://arc.aiaa.org...us/10.2514/1.B36120
[not_morrison_rm, Nov 20 2016]

[link]






       You still have to generate the electricity used to power the microwave source. I suggest combusting unpopped popcorn kernels.
Vernon, Sep 10 2016
  

       Bussard's fusion reactor he was last working on was a microwave generator.
FlyingToaster, Sep 10 2016
  

       There is a published peer reviewed paper on the EmDrive.
beanangel, Sep 15 2016
  

       ^   

       What good are those House of Lords lot? They'll review anything.
not_morrison_rm, Sep 16 2016
  

       Traci Lords ? Oh, and the link is not about her...
normzone, Sep 16 2016
  

       //Traci Lords ?//
Nono, _House_ of Lords - a haircutting franchise.
  

       Admittedly, getting a former porn star to show up at the door bearing food is certainly meritorious.
FlyingToaster, Sep 17 2016
  

       If knew what tracing lords was like, does it involve brown paper and crayons?
not_morrison_rm, Sep 17 2016
  

       I think you'll get more energy by venting the steam to a turbine.
Voice, Sep 18 2016
  

       ... or the hot air.   

       // meritorious //   

       Are you quite sure you don't mean "meretricious" ?
8th of 7, Sep 18 2016
  

       ...and a happy New Year!
MaxwellBuchanan, Sep 18 2016
  

       Gosh, "After months of speculation and leaked documents, NASA's long-awaited EM Drive paper has finally been peer-reviewed and published. And it shows that the 'impossible' propulsion system really does appear to work.".   

       We can finally deport the Borg on the cheap.   

       Linky for the pdf
not_morrison_rm, Nov 20 2016
  

       You'd miss us if we were gone ...   

       Besides, our warp drive is somewhat superior to your laughable little E-M pusher ... go ahead, get on your push-bike and chase that SR-71, see where it gets you ....
8th of 7, Nov 20 2016
  

       //get on your push-bike and chase that SR-71   

       "...NASA's DFRC at Edwards AFB, CA flew the SR-71 from 1991 until its final flight in October 1999."   

       Pursuing a stationery object is something that can be done in a leisurely manner.   

       I claim at least 0.00000678% of the Emdrive royalties for my PR contribution to project.   

       //You'd miss us if we were gone ...   

       Is is actually possible to build a wall around space?
not_morrison_rm, Nov 20 2016
  

       Yes, but it wouldn't help. Remember, we have transporter technology.   

       You'd need an adaptive deflector shield, and on a planetary scale that needs a lot of energy.
8th of 7, Nov 20 2016
  

       But, it would be kind of fun, and keep brickies in work ifor quite a while. Consider it a mini-Dyson sphere, built in brick.   

       Not sure where the guttering should be attached, on the inside or the outside? At least outside it wouldn't keep getting blocked by leaves.
not_morrison_rm, Nov 21 2016
  

       Outside, definitely. And get some of those plastic covers for the drains, to stop them clogging.
8th of 7, Nov 21 2016
  

       I can't help thinking (re. [nmrm]'s link) that if you had ten megawatts of power, you *ought* to be able to generate more than one Newton of thrust. But yes, very clever, no reaction mass.
pertinax, Nov 21 2016
  
      
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