This is a weird question but live with me please. I was completing a math competition (www.comap.com)with my team today and when we finished I started wondering about that "room" airforce pilots and NASA astronauts go into. I can't remember the name of the "room" but it is where they get strapped into a seat attached to a large metallic "arm" and it spins the around in a circle (in order to test how astronauts/pilots react to G forces). So anyways, I was sitting on a chair that could spin on its axis very well (i.e. a long time without stopping due to friction (lack of force giving constant velocity)) and I decided to start spinning very fast and then to close my eyes to feel "inside" the centripetal force clinging me to the chair (excuse me if I am using words wrong, I haven't really taken Physics yet). Basically, I wanted to feel what the pilots go through in that "chamber"/"room". The first time around for like 3 mins I was fine. The second time I tried . . . I DEFINITELY FELT SICK. I am wondering how people endure the effect of being spun around in circles at very high speeds and also I am wondering how can you spin without becoming sick. Thx!