this post was submitted on 28 Dec 2024
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[–] [email protected] 2 points 7 hours ago

Thats cool as hell, thanks for sharing, I really liked this one

[–] DannyBoy 3 points 14 hours ago

Very cool. Never heard of this before.

[–] [email protected] 2 points 13 hours ago

I wish the article had a picture of one in use

[–] [email protected] 17 points 1 day ago

For centuries, sailing ships used deck prisms to provide a safe source of natural sunlight to illuminate areas below decks. Before electricity, light below a vessel's deck was provided by candles, oil and kerosene lamps—all dangerous aboard a wooden ship. The deck prism laid flush into the deck, the glass prism refracted and dispersed natural light into the space below from a small deck opening without weakening the planks or becoming a fire hazard.

[–] [email protected] 5 points 1 day ago