Submissions from grathio.com

		Teardown: Same Product, Fifty Years Apart (grathio.com)
		2 points by colinprince on Sept 7, 2016 \| past
		Tacit Project. Haptic Sonar For The Blind. (grathio.com)
		7 points by m0hit on Aug 22, 2011 \| past \| 2 comments
		Rock Paper Scissors Playing Glove (grathio.com)
		21 points by bockris on March 10, 2010 \| past \| 5 comments
		Unlock A Door With A Secret Knock (grathio.com)
		57 points by jmonegro on Nov 8, 2009 \| past \| 20 comments
		Secret Knock Detecting Door Lock (grathio.com)
		5 points by brentcappello on Nov 7, 2009 \| past \| 1 comment