International Business Times writes:
A new peer-reviewed paper (open, DOI: 10.1063/1.4953807) on the EmDrive from Finland states that the controversial electromagnetic space propulsion technology does work due to microwaves fed into the device converting into photons that leak out of the closed cavity, producing an exhaust.
So how could something come out that you can't detect? Well, the photons bounce back and forth inside the metal cavity, and some of them end up going together in the same direction with the same speed, but they are 180 degrees out of phase. Invariably, when travelling together in this out-of-phase configuration, they cancel each other's electromagnetic field out completely.
That's the same as water waves travelling together so that the crest of one wave is exactly at the trough of the other and cancelling each other out. The water does not go away, it's still there, in the same way the pairs of photons are still there and carrying momentum even though you can't see them as light.
If you don't have electromagnetic properties on the waves as they have cancelled each other out, then they don't reflect from the cavity walls anymore. Instead they leak out of the cavity. So we have an exhaust – the photons are leaking out pair-wise.
(Score: 1, Funny) by Anonymous Coward on Friday June 17 2016, @01:51AM
....undetectable paired photons ...have mass-energy ... can't see them ... ... Holy Shit Batman, I've discovered Dark Energy.
Massive amounts of aliens are zooming around the cosmos on EmDrives and have filled it up with paired photons.
Where do I go to get my Nobel?
(Score: 3, Funny) by takyon on Friday June 17 2016, @01:57AM
You have to stick your head inside the RF resonant cavity thruster.
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(Score: 0) by Anonymous Coward on Friday June 17 2016, @05:07PM
There's a really weird echo in here. But I still can't see my Nobel.
(Score: 2) by takyon on Friday June 17 2016, @05:28PM
I guess we forgot to turn on the device *flip* aaaaaaarrrgggggggg
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(Score: 2) by DECbot on Friday June 17 2016, @07:24PM
Because it's dark. A dark Nobel.
cats~$ sudo chown -R us /home/base