“Reflexions, refractions, inflexions, and colors of light” — David DiLaura called his discovery “a once-in-a-collector’s-lifetime event.” Jennifer Ouellette – Jan 13, 2023 8:22 pm UTC Enlarge / Isaac Newton’s personal copy of the 1717 second edition of Opticks, long thought lost, has been found.Peter Harrington Rare Books David DiLaura, an emeritus professor at the University
