Sun valve

A sun valve (Swedish: solventil, "solar valve") is a form of flow control valve, notable because it earned its inventor Gustaf Dalén the 1912 Nobel Prize in Physics.

The valve formed part of the Dalén light which was used in lighthouses from the 1900s through to the 1960s by which time electric lighting came to dominate.

单词	Sun valve
释义	Sun valve 英语百科 Sun valve A sun valve (Swedish: solventil, "solar valve") is a form of flow control valve, notable because it earned its inventor Gustaf Dalén the 1912 Nobel Prize in Physics. The valve formed part of the Dalén light which was used in lighthouses from the 1900s through to the 1960s by which time electric lighting came to dominate.
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