![](http://photos1.blogger.com/blogger2/6060/3780/320/BrainyBrad.jpg)
Here's one for you: why do people travel in circles when they can't see a fixed landmark?
Apparently, difference in limb lengths doesn't explain this behaviour (eg. driving the car) so this remains an unsolved question.
I wonder if you'll see the same circling movement if you make the blindfolded person lie down on a skateboard, so as to position the inner ear balance organs 90 degrees to the usual orientation.
Or if there is still circling if you give the subject a fixed auditory landmark, like a tall loudspeaker.
Via Mind Hacks.
Would you like to know more?
- A Mystery: Why Can't We Walk Straight? (npr.org)