These are strangely beautiful. It was a great idea to do this.
A deck prism (sometimes called a deadlight) is a prism inserted into the deck of a ship to provide light down below. 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 was a clever solution: laid flush into the deck, the glass pr … Read More
via PBMO
