A rare notebook of Alan Turing’s which dates back to his work breaking the Enigma code is expected to sell at auction for at least £1m.
The 56-page manuscript sees the codebreaker working on the “foundations of mathematical notation and computer science”, said Bonhams, which will auction the notebook in New York on 13 April. It dates from Turing’s days in Bletchley Park in 1942, and according to Bonhams’ specialist Cassandra Hatton, “its mathematical content gives an extraordinary insight into the working mind of one of the greatest luminaries of the 20th century”.
“The Leibniz notation I find extremely difficult to understand in spite of it having been the one I understood the best once!” writes Turing, at one point, in a notebook bought in a Cambridge stationer’s. “It certainly implies that some relation between x and y has been laid down eg, y=x2+3x …”
8-6-2021 (August 6, 2021) is the Snakiest day of the year and it’s also this year’s CircuitPython Day! The day highlights all things CircuitPython and Python on Hardware. See you there!
Stop breadboarding and soldering – start making immediately! Adafruit’s Circuit Playground is jam-packed with LEDs, sensors, buttons, alligator clip pads and more. Build projects with Circuit Playground in a few minutes with the drag-and-drop MakeCode programming site, learn computer science using the CS Discoveries class on code.org, jump into CircuitPython to learn Python and hardware together, TinyGO, or even use the Arduino IDE. Circuit Playground Express is the newest and best Circuit Playground board, with support for CircuitPython, MakeCode, and Arduino. It has a powerful processor, 10 NeoPixels, mini speaker, InfraRed receive and transmit, two buttons, a switch, 14 alligator clip pads, and lots of sensors: capacitive touch, IR proximity, temperature, light, motion and sound. A whole wide world of electronics and coding is waiting for you, and it fits in the palm of your hand.