When I finished my first half-marathon last month, I experienced what it felt like to run on the ground for two hours. But what is it like to run in a gravity-reduced vacuum? When AlterG offered me the chance to demo their new "anti-gravity" treadmill, I couldn't resist.
Have you an opinion, used or been to this object or place? Tell us what you like don't like about it, or post any specs/info about it:
