Science Buddies: "Ask an Expert"

These are some of the questions for my research. I need help with at least questions 4, 5, 10, and 11.

1. Why do you feel dizzy after you stop spinning?
2. How many spins does it usually take to make someone dizzy?
3. Does age affect how soon a person becomes dizzy? Why or why not?
4. Why is it that when you spin someone, their eyes unwillingly move in different directions?
5. Why is it that when you spin for a long time you lose the sense of where you are?
6. Are there other ways to get dizzy other than spinning?
7. Why is it that when a person is dizzy they are not able to walk in a straight line?
8. How long does it usually take to recover from spinning? Why is this?
9. I’ve heard there was a part of the ear that makes you feel like your head is spinning when you stop moving, is it true? If so, what is that part of the ear called?
10. Is there a difference between spinning with your eyes open or closed? Why or why not?
11. Is the intensity of the dizziness different when you spin with your head tilted in different angles?

Please e-mail me the answers since it is almost imposible to log in.
Thank you for your help, Juan Carlos

Hi Juan Carlos,
Unfortunately, I don't have your email and in addition, ScienceBuddies threads usually stay on this forum. Anyway, here may be some helpful links-
http://science.howstuffworks.com/question483.htm
http://www.neurologychannel.com/vertigo/index.shtml
If you would like more information, feel free to do a google search on "spinning dizzy" or "vertigo"...post back if you need more help, good luck!