Apparently the earth gets hit daily by sun energy equal to the energy we use in a year globally.
But the goal with this thread was to claim the superiority of brushless electrical propulsion as the prime mover and how excellently well suited they are for aviation. It wasn't really my intention that it should become an alternative fuel/greenhouse discussion and certainly not a perpetuum mobile quasi-science thread, even though perhaps the two can't be entirely separated. I don't really care how or where the energy to power these electric motors come from, as long as it makes sense. Hybrids, batteries etc - whatever turns out to be cheaper and better for us.
Last edited by AdamFrisch; 28th Sep 2011 at 23:17.