Kevin Willoughby wrote:

To get back on-topic: go to MGM/Disney and ride Tower of Terror. Short
of renting the Vomit Comet, it is the best way most of us will have to
experience Zero-G.

There's the new "Space" centrifuge ride at EPCOT as well.
They even have barf bags for your convenience.
http://www.wdwinfo.com/wdwinfo/guide...fw-mission.htm