Electrical devices that break a circuit when too much power flows through, or the act of joining things together by melting or blending them.
From Latin 'fusus' meaning 'melted' or 'poured.' As an electrical term, it comes from the idea of a wire literally melting when overloaded to break the circuit.
Old fuses that 'blow' were actually genius safety devices—a thin wire inside would melt and snap, instantly stopping electrical flow before your house caught fire, which is why they literally saved lives!
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