Today I Learned@lemmy.worldEnglish · 3 days ago

TIL about the arc lamp

en.wikipedia.org

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TIL about the arc lamp

en.wikipedia.org

jaykrown@lemmy.world to

Today I Learned@lemmy.worldEnglish · 3 days ago

Arc lamp - Wikipedia

en.wikipedia.org

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seathru@quokk.au
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