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Joined 2026-09-21 Message
Incoming links: Dalén light
Gustaf Dalén 2026-10-18
A mechanical engineer whose work connected gas lighting to automatic operation. Chalmers records his mechanical-engineering qualification in 1896.[ref]
https://www.chalmers.se/en/about-chalmers/alumni/wall-of-fame/. Gustaf Dalén, Mechanical Engineering 1896: qualification and engineering career
After an accident left him blind in 1912, he returned to AGA in 1913 and continued leading the company.[ref]Gustaf Dalén – Beacon Lighting by Tekniska museet. The accident; Willpower and optimism: loss of sight, return and subsequent engineering work
The sun valve links radiometric absorptance, thermal expansion and mechanical motion to a useful decision: whether a beacon should receive its main gas supply. The Dalén light combines this daylight response with repeated flashes. The Nobel Prize in Physics in 1912 recognized his automatic regulators for lighthouse and buoy lighting.
Portrait of Gustaf Dalén, via Wikimedia Commons
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Nobel Prize in Physics in 1912 2026-10-18
Awarded to Gustaf Dalén for automatic regulators used with gas accumulators for lighthouse and buoy lighting. The sun valve and Dalén light connect the award to mechanical engineering.[ref]
The Nobel Prize in Physics 1912 by Nobel Prize Outreach. Official award record: automatic regulators and marine lighting