Possible Error Sources

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Things like thermal buckling, atmospheric effects, etc. will be discussed here.

NOTE: As efforts to catch up from page 1 of the presently 147 page thread progress, items may shift from Open to Closed and thus at this time may be incomplete or incorrectly categorized.

Effects caused by interaction with the air

Thermal Effects - General Atmospheric - Heating of the surroundings of the drive, causing air currents which generate forces on the drive.

Thermal Effects - Hot air balloon - Heating of the air inside the drive causes lift. The lift varies with orientation, depending upon where venting holes are located on the drive.

Thermal Effects - Expansion - Heating of the air inside the drive causes it to expand and push out of holes in the drive, until the drive reaches equilibrium temperature.

Thermal Effects - Jet - Heating of the air inside the drive pushes it out. Fresh air is drawn in to replace it, resulting in a continuous jet, like a microwave driven pulse jet.

Helmholtz Resonator - Air inside the device is vibrated, and causes continuous thrust by expelling and drawing in air in the manner of a Helmholtz resonator. [1]

Crookes Radiometer - Thermal differences across the device cause a flow of air over the device, which causes rotation in the manner of Crookes Radiometer. [2]

Magnetic and Electric interactions with the surroundings

Induction of magnetic or electric fields in the apparatus and surroundings, causing repulsion/attraction with surroundings.

Induced magnetic fields pushing against the Earth's magnetic field.

Other trivial explanations

Thermal Effects - Drive - Heating of the structure or components of the drive causes the drive to change shape, altering its centre of gravity

Vibration of the device (Dean Drive Effects) when power is applied causing a ratchet-type rotation effect, due to differences in the static friction.

Heating, magnetic or electrical effects causing the device to alter shape and weight distribution.

Other

Photon Rocket Interpretation - The theory that in some way the EM Drive is simply a strange Photon Rocket.

References