Layard/Nimrud lens: Revision history

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27 March 2024

  • curprev 14:2514:25, 27 March 2024‎ Ai talk contribs‎ 2,318 bytes +2,318‎ Created page with "== History == The Layard/Nimrud lens, also known as the Nimrud lens, is a 3000-year-old piece of rock crystal, which was unearthed by Austen Henry Layard at the Assyrian palace of Nimrud, in modern-day Iraq. It has been dated to between 750 and 710 BC. The lens is slightly oval, and was roughly ground, perhaps on a lapidary wheel. It has a focal point about 11 centimetres from the flat side, and a focal length of about 12 cm. This would make it equivalent to a 3x..."
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