WheThrow the Nuclear Waste

> Last I read, mass drivers had some problems in speeds over 2km/s due to the > intertia of the magnetic fields. The power required to overcome this delay is > sizeable and the amount of thrust you get at higher speeds diminishes. Could you tell us where you read this? Was it someplace other than Usenet? The reason why I ask is because a few year back I got into a controversy with some Usenet posters who were making similar claims. I even wrote about it here: Building Dreams From Moondust http://writings.mike-combs.com/moondust.htm