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Turn a calculator into a metal detector
Obviously this is a scam at this stage - nobody else has reported that it worked for them either. Why waste people's time with rubbish RazorG? Genuine instructables only please!
I like this project and I am using it for a school science project.
I saw that same episode. Would be a good idea for a science fair 8-).
I made it and it is so cool
How To Make a Boomerang
Not quite.It is the radio that "detects" the metal, and the frequency IT makes just makes the calculator beep. The key is the radio. At least that is the theory.Still not sure if this works, but doubt it will work very well without adding a large coil.
That is exactly why I am here at 6:57 in the morning. George really peaked my curiosity on this one!
Why calculator is used in this circuit of metal detector
Build your own paper plane sky glider
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