Shape of the cosmos
Watching the sky, you can see the Sun, moon, planets and stars moving above Earth. It is very intuitive to imagine that you are standing still and the objects you are observing are moving above you and this was the ...
By Peter Rowlett
History of maths and x is an initiative that aims to offer mathematical histories for various topics, x. Each topic is covered in a talk at the University of Nottingham that is available to view online, in an article for iSquared Magazine and is accompanied by a companion podcast released by the Institute of Mathematics and its Applications through the Travels in a Mathematical World podcast.
Substitution ciphers: Ancient - Renaissance
Cryptography is the process by which messages are communicated through secret means. Cipher cryptography converts messages by applying some cipher algorithm with a secret key to a plaintext message, converting it into a ciphertext message that cannot be read by ...