If you wade thru the thousands of posts in the steorn forum, it's obvious that Sean McCarthy is trying to provide much of the information necessary to build his device without compromising his patent applications. There are even summaries of what he's said.
It's 7.5 watts/gram It's 0.5 watts/cm^3 for the electrical generator version, about 10 times that for the mechanical output version. Reversing it absorbs energy and it doesn't get hot. It doesn't use magnetic shielding or Halbach arrays. It does require 3D geometry (can't run in a plane). It probably uses magnetic viscosity, where the integrated force on a ferromagnetic material varies as the speed of approach or withdrawal. They have a 550 horsepower prototype running. and much more. Back to cooling the earth (which I don't think will ever be necessary): To start, when every home or neighborhood has their own free energy machine, convert all the hydroelectric dam generators to Steorn Absorbers, then all the wind farm generators. When that's not enough, do you have any ideas using a heat engine or refrigeration plant and heat engine to drive a Steorn Absorber? Hoyt A. Stearns Jr. Scottsdale, Arizona US http://HoytStearns.com
