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    EMDrive progress
    Posted on Friday, June 30, 2017 @ 10:33:30 MST by vlad

    Devices From NextBigFuture.com: EMdrive inventor Shawyer’s latest information on military applications and superconducting EMDrive progress by Brian Wang

    Roger Shawyer, SPR Ltd, invented the EMdrive and recently gave an EMdrive presentation to the UK Defence Academy Shrivenham.

    EmDrive is the first true Propellantless Propulsion technology.

    High frequency electrical energy is directly converted to thrust.

    It is a resonant microwave cavity, shaped to obtain different group velocities at each end, and thus achieve a force difference as the EM wave reflects off each end plate.

    EmDrive is not a reactionless thruster, it is simply a new class of electrical machine.

    Conventional microwave technology limits the maximum Q of resonators to around 50,000, giving a specific thrust of 200 mN/kW at 3 km/s. This technology will be utilised in first generation engines where typical applications will be the orbital transfer and orbit maintenance of communication satellites and the primary propulsion for science missions.

    Classic Physics can answer all questions about EmDrive
    How is Momentum Conserved? EmDrive obeys Newton’s Laws
    How is force produced? Radiation Pressure. Maxwell.
    Why are the end plate forces different? Different group velocities due to different diameters. Cullen 1952
    How is the force multiplied? EmDrive is a Resonant cavity with a multiplication factor Q. Bailey 1955
    Why is EmDrive an Open System? Einstein’s theory of Special Relativity
    Why are there no side wall forces? Thrust due to travelling waves not standing waves.
    How is energy conserved? EmDrive is an electrical machine.
    What limits thrust in high Q thrusters? Internal Doppler shift.
    How is thrust calculated? Thrust equation.
    How is thrust measured? With great care...

    Full story: https://www.nextbigfuture.com/2017/06/emdrive-inventor-shawyers-latest-information-on-military-applications-and-superconducting-emdrive-progress.html



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    Acceleration Mechanics for New Propellant-less Space Drives (Score: 1)
    by vlad on Wednesday, July 19, 2017 @ 07:57:11 MST
    (User Info | Send a Message) http://www.zpenergy.com
    From http://www.icarusinterstellar.org [www.icarusinterstellar.org]:...It has been shown that the mechanism of acceleration is hidden within known physics, much like a Chameleon can hide in plain sight. This is shown through the use of the thin-shell mechanism under Chameleon Cosmology and modified into an acceleration model called Chameleon Acceleration. The thin-shell mechanism is related to the density environment about an object and is presented as a thin-shell thickness that exist about all objects. 

    By applying entanglement to the thin-shell mechanism, one can allow the thin-shell to be the observer between an object’s density and its surrounding environment density in order to conserve both entanglement and energy between the two densities.  Whereby, changes to these densities invoke changes to the thin-shell thickness about an object, which when non-uniform across the object, accelerates the object in order to conserve energy and momentum between the thin-shell and the two densities. It is noted that the fabric of space-time can be viewed as a time-wise compilation of thin-shells and that the geometry of the thin-shell change under acceleration is like the geometry of a warp bubble.

    Source: http://www.icarusinterstellar.org/sc17-glen-robertson [www.icarusinterstellar.org]


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