Gustaf Dalén’s automatic regulators functioned without the need for..?
Electricity
Gasoline
Coal
Water
Answer
**Electricity.** Dalén's automatic regulators utilized the principles of pneumatics and thermodynamics, making them self-sufficient without the need for an external power source like electricity. These ingenious systems harnessed the power of gas pressure and temperature changes to control valves and mechanisms, revolutionizing the operation of lighthouses and enhancing safety at sea.
The Brilliant Inventor: Gustaf Dalén Quiz
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