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The original cover of the 'Waste Book'

Cambridge manuscript

'Not fit to be printed'

Newton’s work on optics – from one of his notebooks

Calculation in the 'Waste Book'

Photographer captures Principia on conservation cradle

First edition of Newton's Principia

Fire damage

The Cambridge University Library today published online nearly 4,000 pages of material from the iconic scientist Isaac Newton. Mathematical and scientific manuscripts, including some of the mathematics he developed to arrive at the principles of what are now called "Newtonian physics," are available on the Cambridge Digital Library site, giving the public access to Newton's 17th century scientific works.

Here's the original cover of Newton's "Waste Book," a notebook in which he developed much of his important work on calculus. He started using the notebook in 1664 when he was away from Cambridge due to the plague.
Caption by / Photo by Cambridge University Library
Isaac Newton's work in mathematics developed the foundations for the laws of motion and the existence of gravity as a force.
Caption by / Photo by Cambridge University Library
The first page of one of Newton's notebooks, dated 1661, includes the notation "Not fit to be printed."
Caption by / Photo by Cambridge University Library
In 1670, Newton was researching the refraction of light and developing his theory of color. He demonstrated that a prism could separate white light into a spectrum of colors, and eventually built the first known functional reflecting telescope, today known as the Newtonian telescope.
Caption by / Photo by Cambridge University Library
Some calculations on a page in the "Waste Book," in which Newton discovered the law of centrifugal force.
Caption by / Photo by Cambridge University Library
An 80-megapixel camera was used to photograph Newton's Principia, seen here on the conservation cradle at the University of Cambridge.
Caption by / Photo by Cambridge University Library
An instant classic: Sir Isaac Newton's Principia laid out his the mathematical foundation for gravity and the laws of motion.
Caption by / Photo by Cambridge University Library
Some of the pages of the first addition of the Principia have suffered damage from fire.
Caption by / Photo by Cambridge University Library
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