Things - Polyalphabetic Substitution Cypher Slide Rule
Uploaded on Nov 17, 2008 / 43 views / 63 impressions / 0 comments
Description
You know when you had your notes taken from you by the teacher and read aloud in class? If you'd had one of Nick's Polyalphabetic Substitution Cypher Slide Rules (PASCSR) you could have avoided that! Learn about all the Things at http://brepettis.com/blog