security

bad puns bathroom kludge dual use pencil security
Via: genericmalefilipino.tumblr.com
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Did I just make a pun about writing utensils and poop, based on a popular idiom? Yes. Yes I did. You're welcome.

~NSHA

security turnstile Subway
By Noplay
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Putting the "style" in turnstile, amiryte?

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Steve Hoefer at Grathio labs shows off his Arduino based door opener, which responds to knocks on the door bye timing the gaps between the sounds. If the gap matches the programmed knock, it unlocks. Let's never use keys again!

Know a little bit about Arduino and care to make your own? Check out his Instructables post!