Interesting Video

[MacBook]

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Members do not see this ad.

Came across this earlier. Might be of interest. How someone would be willing to volunteer like that is beyond me.

http://www.youtube.com/watch?v=bLSnXiegIgk&feature=related

 

[militarymd]

One muscle left that you still have control over.

The Iris...

Through accomodation...you can make it go bigger or smaller.