I was really surprised that this simple hack doesn’t even require taking anything apart! Just use a calculator and AM radio to make a metal detector – [via] Link.

UPDATE: This one might be plausible, folks. Debate in the comments; the first one to prove it’s real/fake gets a MAKE pocket ref!


  • Metal detectors @ NYC toy fair – Link.
  • Build you own metal detector – Link.

Becky Stern is a Content Creator at Autodesk/Instructables, and part time faculty at New York’s School of Visual Arts Products of Design grad program. Making and sharing are her two biggest passions, and she's created hundreds of free online DIY tutorials and videos, mostly about technology and its intersection with crafts. Find her @bekathwia on YouTube/Twitter/Instagram.

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