The idea that it's leaking fits well with the observation that the thrust involved is "incredibly small".

When you're chasing effects at the margin of what you can detect, totally marginal errors can totally mess up the results.

On 06/16/2016 01:36 PM, Bob Higgins wrote:
I don't quite understand why people think photons don't leak out of the Shawyer apparatus. If you look at a Fabry-Perot resonator - two parallel mirrors (an etalon). The reflectivity for each of the mirrors can be 99.999%, and the etalon Q will be quite high, but at the resonance, light will pass through the etalon with relatively little attenuation. This is because the energy inside the resonance is related to Q which is related to reflectivity. When the reflectivity is high, the Q is high, so the field intensity inside the etalon is very high (multiplied by Q). Then when you take that internal field intensity and multiply it by the reflectivity, most of the input comes out (at resonance).

Bob

On Thu, Jun 16, 2016 at 11:21 AM, Russ George <russ.geo...@gmail.com <mailto:russ.geo...@gmail.com>> wrote:

    OK Dr. Photon just how do we like this news on the EM Drive and
    the paired out of phase photons?
    
http://www.physics-astronomy.com/2016/06/new-paper-claims-that-em-drive-doesnt.html#.V2LfsvkrKVM



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