How petrol pumps know when to turn themselves off

Gas or petrol pump nozzles turn off automatically when your tank is full. The way it works is really clever and uses the venturi effect. You can buy my books here: just like these amazing people: Frank Hereford Will Ackerly Brendan Williams Cameron Leigh Middleton Matthew Cocke Frederic Merizen...

14 min - How Things Work - Steve Mould

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