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Sweden · Famous People · Hard
Gustaf Dalén won the 1912 Nobel Prize in Physics for inventing what maritime safety device?
Answer: The sun valve, which automatically lit and extinguished lighthouses and buoys — Dalén's sun valve used the expansion of sunlight on a metal rod to control acetylene gas flow, automating lighthouses and saving enormous quantities of fuel.
- A The foghorn
- B Radar navigation
- C The marine chronometer
- D The sun valve, which automatically lit and extinguished lighthouses and buoys ✓
Dalén's sun valve used the expansion of sunlight on a metal rod to control acetylene gas flow, automating lighthouses and saving enormous quantities of fuel.