Vectors Hidden in Brighton Weather Map

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When students encounter vectors for the first time at GCSE level, they can seem quite strange and difficult to understand. Usually by this stage they have almost finished wrestling with an ever expanding concept of what a number is. We … Continued

A Good Programming Environment

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If you have an interest in maths, physics, electronics and computing, one of the best ways to develop that interest is by experimenting on a computer. In this post, I want to give a few suggestions about how to get … Continued

How Fast Does Electricity Move?

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Here's an interesting question... how fast does electricity move in a wire? Our experience tells us that when we turn on a light switch or an appliance it powers up pretty much instantly, which would suggest that electricity moves very … Continued

Cool Proof of Pythagoras' Theorem

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Here's a great proof of Pythagoras' famous theorem. Four copies of the same right angled triangle with , , , have been put together inside a square as shown in the figure. The area of the whole figure is equal … Continued

Pythagoras and The Twins Paradox

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The main storyline behind the recent film Interstellar is based on Einstein's special theory of relativity, and in particular the so-called twins paradox. Einstein's theory says that if one twin stays on Earth while the other speeds off into space … Continued

Practice Coding With Trinket

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Trinket is a great coding environment that makes it so easy to add code to any website. Also, any code added can be altered and run within your browser so you can see how changing it affects the result. Why … Continued

Displaying Maths on Your Website

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MathJax is a simple JavaScript display engine for mathematics if you want to use maths on your website. Once you have added it, you can write equations using LaTeX notation and they should automatically appear in your webpage. Here are … Continued