Monthly Archives: May 2014

Only the truth makes sense

Smith’s Law states: The area between two curves is the integral of the top curve minus the bottom curve. I have emailed edexcel asking them to put this on their syllabus. If you think this is a vanity campaign, think … Continue reading →

£281,000 and increasing by 10% or so per year.

Domestic appliances are becoming less reliable. Washing machines last on average 7 years when they used to last 10. Other things are also moving backwards – like human health, as people become fatter. We are coming up against the limits … Continue reading →

One of my students walked into a physics class with a very good calculator – a casio 991 es plus – and walked out with two. When he asked whose calculator he walked out with at the next lesson, noone … Continue reading →

to aqa I sent an email ie please use the formula Area=1/2ab sin C to mean you can label the triangle in the same way as for the cosine rule a^2 =b^2 +c^2 -2bc con A. I’m sorry I don’t … Continue reading →