I had done a study of CAD systems for my company and we selected SolidWorks. I had always been a Pro E fan myself, but SolidWorks just beats it cost and is far more flexible when it comes to importing drawings made on another system. You can a decent aSolidWorks package for about $6K and it...
I met the people involved with the space elevator at a forum fo high-tech investors. Believe me they are quite serious, and include a number of very sharp people, This is not a hoax, but they will be dependent on technology breakthroughs in nanotubes to be successful.