Naked Science Forum

Life Sciences => Physiology & Medicine => Topic started by: Alandriel on 23/12/2008 22:54:18

Title: Dizzy! Or ....why is it my eyes do this funny thing..?
Post by: Alandriel on 23/12/2008 22:54:18

Now,  - hello first!  [;D]

sit comfortably or / and

- if you're accident prone or at all even slightly concerned -

surround yourself with lots of fluffy pillows. Just to be safe  [;)]


You're about to experience something    W E I R D









Have a look
















yes! You open your eyes now fully and stare at

(https://www.thenakedscientists.com/forum/proxy.php?request=http%3A%2F%2Fwww.mizbusiness.com%2Fdizzy.gif&hash=c33512ae2b0ebe706f24966a008f95fc)








            oops! Still there?




           Good! Check out the second one

and pretend the ruler is not there (sorry, was too lazy to edit the piccie)



(https://www.thenakedscientists.com/forum/proxy.php?request=http%3A%2F%2Fwww.jandofabrics.com%2Fprodimages%2F1-8InchBlackStripe0569.jpg&hash=933b496bab79b8021ab05c3cf631bb6f)



See what I mean?


Now tell me why. What's going on? Why do patterns like this create a 'dizzy' effect?

(https://www.thenakedscientists.com/forum/proxy.php?request=http%3A%2F%2Fimages.smileydb.com%2F1%2F001073.gif&hash=8c54d791d8d957cdf9bf3bd72e4bf86c)

Title: Dizzy! Or ....why is it my eyes do this funny thing..?
Post by: Chemistry4me on 23/12/2008 23:08:49

I didn't notice anything dizzy about the second picture. Have a look at this http://en.wikipedia.org/wiki/Optical_illusion

Title: Dizzy! Or ....why is it my eyes do this funny thing..?
Post by: Chemistry4me on 23/12/2008 23:10:10

Theres plenty more dizziness here!! http://www.michaelbach.de/ot/