The Woman Who Smashed Codes: The Untold Story of Cryptography Pioneer Elizebeth Friedman – Brain Pickings | iPads, MakerEd and More in Education | Scoop.it
From www.brainpickings.org - October 4, 2018 2:08 PM
How an unsung heroine established a new field of science and helped defeat the Nazis with pencil, paper, and perseverance.