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May 31st, 2011
02:27 PM ET
May 31st, 2011
01:40 PM ET

Today's Big I: Mark Stark's Prosthetic Hand

In today's Big I we looked at Mark Stark's prosthetic hand - a device he made in his basement to help a friend.

It was recently awarded a spot in Popular Science magazine's 2011 Invention Awards.

Click here for more.

Filed under: Ali Velshi • The Big I
May 31st, 2011
08:26 AM ET