PlaidBastard t1_itomv9x wrote
Reply to comment by amateurneuron in Customs agents have a device where you put a substance on a small metal plate and it tells you exactly what it is (like cocaine etc). How does this work and how accurate is it? by Weird-Vagina-Beard
Likewise, it wouldn't probably be great at, for example, telling you which alloy of aluminum something you found in a scrapyard is, unlike some other ways of zapping things to know what they are.
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