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A comment on A looming copper crunch and why recycling can’t fix it. Parent comment

Re:A looming copper crunch and why recycling can’t fix it by MichaelCollins on Sunday July 31, 2022 @04:27PM (#32298514)
Codyslab sorting copper pennies using magnetic inductance: https://www.youtube.com/watch?v=_gM9mOk6eb8

Seems very simple and low tech.

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