10/26/2026
The Chart Room · geek-culture

Build a Hidden Lock With a Magnetic Imager

Filed by Dana Graviton
Build a Hidden Lock With a Magnetic Imager
Like many a nerd, I have a certain fascination with locks. This originates in reading the memoir Surely You’re Joking, Mr. Feynman as a teenager, in which Richard Feynman recounts picking locks and cracking combinations while at his day job working on the Manhattan Project at Los Alamos. I currently have a couple of locksport pick sets and training locks that I purchased at hacker conferences over the years (although I’m still terrible at it), and I delight in the YouTube exploits of folks like
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Dana Graviton
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Build a Hidden Lock With a Magnetic Imager — The Chart Room