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Talk

Who invented Cryptography?

Professor Robin Wilson · Gresham College

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About

An excerpt taken from a lecture by Professor Robin Wilson called 'Number Theory: Queen of Mathematics' In which years does February have five Sundays? How many right-angled triangles with whole-number sides have a side of length 29? How many shuffles are needed to restore the order of the cards in a pack with two Jokers? Are any of the numbers 11, 111, 1111, 11111, . . . perfect squares? Can one construct a regular polygon with 100 sides if measuring is forbidden? How do prime numbers help to keep our credit cards secure?

The talk

  1. Who invented Cryptography? YouTube

Credits and licence

Institution
Gresham College
Speaker
Professor Robin Wilson
Level
For everyone
Language
English
Subjects
Mathematics
Source
Gresham College
Licence
Educational use (Gresham College's terms), as Gresham College states it. Gresham College's terms
Attribution
Gresham College states: "We positively encourage the use of the Gresham College lecture transcripts, audio and video files for educational purposes. However, we do not allow use of Gresham College materials for commercial, personal or institutional gain."
Who can watch
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