> The privately-run Team Encounter will demonstrate > solar sail technology (...) Solar sail has a horrible flaw. The force increases with the square of the size. The mass increases with something between the square and the cube of the size. So, the most efficient solar sail is microscopic. Ex-Cathedra Maru Alberto Monteiro _______________________________________________ http://www.mccmedia.com/mailman/listinfo/brin-l