Health
Why copper door handles can kill bacteria
HERE’S THE INTERESTING PART
Long before fancy chemical sprays existed, ancient civilizations relied on certain metals to magically keep water pure. It turns out that specific alloys physically electrocute and shred the outer walls of microscopic invaders on contact. Hospitals could significantly reduce rampant infections simply by making their door handles out of the exact same material used for loose change.
One discovery leads to another.
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