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Robert Zubrin has new propellentless space propulsion concept – Dipole Drive

• nextbigfuture.com by brian wang

The magnetic sail would be great for a lighter braking mechanism for interstellar laser pushed vehicles.

Robert also was a reviewer for the electric sail paper. It also has drag and has positive charge that pushes against the solar wind.

Robert has thought up something he previously called an enhanced electric sail but now calls the dipole drive.

He has two screens one positive and one negative. Outside of the screens the positive and negative cancel out but between them there is strong field going from positive to negative.

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