The Power of 10 – A Trip Around the Universe – Part 2 of 2

In part one, we took a trip around the universe and saw ours and other planets, the orbits, our sun, stars and galaxies; using the power of 10 as a positive number. In this final [more…]

The Power of 10 – A Trip Around the Universe – Part 1 of 2

The Positive Power of 10 I have copied most of this from various sources.  I thought I would do this after looking at those fascinating pictures of the relative size of the planets in our [more…]

Encryption of secret messages has been with us forever and will remain with us forever.  There is a permanent war between encryption and decryption.

Ancient Algorithms and RSA Encryption

Standing on the Shoulder of Giants showed that algebra had been studied for thousands of years by mathematicians in Ancient Egypt, Babylon, Ancient Greece, India and China before al-Khwarzmi of Persia wrote his text on [more…]

Standing on the Shoulders of Giants

I had always associated the phrase “If I have seen further, it is by standing on the shoulders of giants” with Sir Isaac Newton. (Letter to Hooke, ).  That is, we build our knowledge on [more…]

A Partridge in a Pear Tree

Actually, this is about a short history of graph theory which is not to be confused with those functions that you plotted at school all those years ago.  We shall look at pairwise counting, trees [more…]

A Triangle

This is Klauber’s Triangle : – He produced it in the 1930s.  The underlying numbers are the natural numbers ℕ and are arranged as follows : – 1 2   3   4 5   6   7   8   [more…]