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Attach the sonic nail finder onto the center of the back of any
picture, clock, or "purely decorative" torture device that you
trying to hang. Using wavy-handy-electromagnetic spacial
theremin type technology in a small chip and CR2025 battery,
small piezo speaker in it produces
the highest pitch when the
is directly above it, thus allowing you to hang said picture on
hook with ease.
From "The Dilbert Principle" [8th of 7, Nov 16 2020]
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||If the wall fixing had a small amount of a gamma-emitting nuclide like Cobalt-60 or Strontium-90 embedded* in it, then a piece of radioflourescent plastic applied to the front of the item to be hung would show a visible glowing spot as it moved over the fixing; the radiation will penetrate the material and give you an exact positioning cue, in X, Y and Z axes.
||*You can't make the whole thing from them, as those metals have unsuitable mechanical properties.
||// constantly find new applications for them. //
||[kdf], you need to get out more and meet other humans.
||Coming from us, that advice should worry you. Lots.
||That's no fun, he's more deserving of pity than condemnation. The whole idea has a flavour of Scott Adams' "Engineers Explained" about it ... he actually mentions picture-hanging. <link>
||Aw, we did that three Saturnalias ago, with the Intercalary's novelty nutcracker. Oh, how we laughed ...
||I have rare-earth magnets holding up a piece of finish trim
wood on my basement ceiling. As the area was in front of a
crawl window and hiding water pipes, a gas line, a cable or
two, and the Case-Western ARPAnet trunk line, removable
access was important.
||Murphy's law, it will find that nail/screw that missed and was plastered over without removal.