Do you ever feel that the world is spinning circles around you? This video and its music are guaranteed to drive you crazy if you watch too long.
The author explains the technique:
This was filmed using a GoPro HD Hero camera, which is designed for action filming such as surfing, motorcross etc. It can be attached to your helmet or equipment, therefore it’s very small and light, which is how I can still hula hoop with it on my hoop- it’s a bit more difficult but possible!
It has a wide angle lens of 180 degrees, which creates this odd effect.