Codex Leicester

The Codex Leicester is a collection of largely scientific writings by Leonardo da Vinci. It is named after Thomas Coke, later the 1st Earl of Leicester, who purchased it in 1717.

Related Topics:
Leonardo da Vinci - Thomas Coke - 1717

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The Codex provides a rare insight into the inquiring mind of the definitive Renaissance artist, scientist and thinker as well as an exceptional illustration of the link between art and science and the creativity of the scientific process.

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The manuscript does not take the form of a single linear script, but is rather a mixture of da Vinci's observations and theories on astronomy, the properties of water, rocks and fossils, air and celestial light. The topics addressed include:

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• an explanation of why fossils can be found on mountains. Hundreds of years before plate tectonics became accepted scientific theory, da Vinci believed that mountains had previously formed sea beds, and were gradually lifted until they formed mountains.
• the movement of water. This is the main topic of the Codex. Among other things, da Vinci wrote about the flow of water in rivers, and how it is affected by different obstacles put in its way. From his observations he made recommendations about bridge contruction and erosion.
• the luminocity of the moon. da Vinci speculated that the moon's surface is covered by water which reflects light from the sun. Waves on the water's surface cause the light to be reflected in many directions, explaining why the moon is not as bright as the sun.

Physically, the Codex takes the form of 18 sheets of paper, each folded in half and written on both sides, forming the complete 72-page document. At one time the sheets were bound together, but they are now displayed separately. It was handwritten in Italian by da Vinci, using his characteristic mirror writing, and supported by copious drawings and diagrams.

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The Codex was purchased in 1980 by wealthy industrialist, art collector and philanthropist Armand Hammer from the Leicester estate, and renamed the "Codex Hammer". In 1994 Bill Gates bought it at auction for $30.8 million and renamed it the Codex Leicester. The Codex is put on public display once a year in a different city around the world. In 2005 it was being exhibited in Tokyo.

Related Topics:
1980 - Philanthropist - Armand Hammer - 1994 - Bill Gates - $30.8 million - 2005 - Tokyo

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