These are two images of a single sheet from the book. The picture on the left is an ordinary photograph, with the Archimedes text barely visible. The picture on the right is a multi-spectral image, and the Archimedes text and diagrams are mostly legible.
Credit: The owner of the Archimedes Palimpsest.
Found in: Numbers
Even if science can’t make life longer, perhaps a pill can make a long life better
The gene patenting decision from a plaintiff’s point of view
With everyday materials, two research teams conceal ordinary objects
In mating display, male birds match moves to songs
Coverage of the 2013 American Association for the Advancement of Science meeting
The Year in Science 2012
Three-part series on the scientific struggle to explain the conscious self
Tables of contents, columns and FAQs on SN Prime for iPad