Codex Hammer [portable]

: The notebook contains Leonardo’s theories on why the sky is blue and his observations of "planetshine"—the phenomenon where the Moon is illuminated by light reflecting off the Earth.

: In 1980, the American industrialist and art collector Armand Hammer purchased the manuscript at auction. He renamed it the Codex Hammer and housed it in his own museum.

: Leonardo meticulously documented the nature of water, including its flow, the nature of riverbeds, and how water interacts with obstacles. He even outlined plans for a 15-part "Book of Water," covering topics like canals and water-powered machinery. codex hammer

Write not to be heard. Write to be used .

The manuscript’s name has changed over centuries to reflect its high-profile owners: : The notebook contains Leonardo’s theories on why

— Hammer

The Fractal Masterpiece – A Review of the Codex Hammer : Leonardo meticulously documented the nature of water,

★★★★★ (5/5)