If you think about it, the conventional idea for a track as such would be started at the base of a track angled skyward (obviously) and so you would have to reach a certain velocity in the shortest timeframe possible withought knocking out your passengers. This acceleration shouldn't just be...
You have to think too, the governments of the world have technollogy that can be well 50 years into the future, they simply decide not to tell us. During the time of when the U.S. first started testing hydrogen bombs, they did it withought the public knowing, and as a coverup the U.S. publicly...