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Shared August 29, 2026
Before microchips took over, engineers used liquid mercury to flip switches! š§ ā”
When this tilt switch moves, the liquid metal connects the contacts to complete the electrical circuitāzero microchips needed. While extremely clever and reliable, mercury switches were phased out due to toxic health risks.
Did you ever see one of these in old appliances? Drop a comment! š
#engineering #science #retro-tech #physics #oddlysatisfying #techhistory
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