Countdown to the Moon

The key to opening up space is reducing launch cost. And the key to reducing launch cost is to increase the payload fraction of the vehicle. This can be done through ground accelerators, deploying from planes, and the use of skyhooks.

Eagle maintains a website: http://www.high-frontier.org/ 

He helped a student create a launch tower.

https://www.youtube.com/watch?v=kL8EmYMef60