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Fraser
2008-Aug-12, 06:20 PM
Last week we talked about rockets. How they work and their limitations. This week we're going to look at the future of propulsion systems. From the ion engines that are already working to explore the Solar System to the prototype solar sails to futuristic technologies like magnetic sails, and bussard ramjets. This is how we'll [...]

More... (http://www.universetoday.com/2008/08/12/podcast-advanced-propulsion-systems/)

San Pedro
2008-Aug-14, 11:27 AM
Why no mention of this "system"

Tether propulsion (http://www.patentstorm.us/patents/6116544/description.html)


This invention relates generally to apparatus and methods useful for
changing the state vector of a space object when the space object is
moving relative to a magnetic field. More specifically, the present
invention relates to an apparatus and method of using a conducting tether
to produce an electrodynamic force to deorbit a satellite from its orbit
around a celestial body, such as the Earth, which has an associated
magnetic field.

Puzzling :think: