RAND SIMBERG IN POPULAR MECHANICS: Who needs rockets? “There have been plenty of alternative means of getting into space proposed over the years that don’t employ traditional chemical rocket engines. The list presented here isn’t exhaustive but representative, and they fall into four broad categories—cannons, external-energy vehicles, static structures and dynamic structures.”
InstaPundit is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com.