Re: [Phys-l] inversion goggles

[brian whatcott <betwys1@sbcglobal.net>]

On 5/16/2011 1:14 PM, Stefan Jeglinski wrote:
> /snip/If a baby sees your legs pointing up and
> head down, and you make a motion toward your legs, then you should
> see the baby's eyes go up as it eagerly and happily follows your
> motion down. Etc. /snip/
> Stefan Jeglinski
Baby vision brings to mind a memorable experiment.

If a plexiglass plate is placed to bridge between two lab benches,
a baby that's capable of crawling will stop crawling at the visual edge
 of the bench, where the floor is visible beneath, though the surface 
is smooth
over bench and bridge.

A sort of early built-in safety mechanism, apparently.

Brian W