Monthly Archive: April, 2009

WoW 5: Finding numbers

Apologies for no website last week, as you can see from my last post but one I was a little busy. This week we have a technical site, Plouffe’s Inverter, one of those… Continue reading

Unscheduled Post: Subtlety and swine flu

The difference between stupid and intelligent people–and this is true whether or not they are well-educated–is that intelligent people can handle subtlety. They are not baffled by ambiguous or even contradictory situations–in fact,… Continue reading

Building Mathematics: Sculpture system No. 5

[Update 15/1/10: More pictures (in the snow!) now up] [Update 16/3/10: A second sculpture built in Newcastle] [Update 13/5/10: Volcanic background] Can you get children and young people to build mathematical scultptures in… Continue reading

Unscheduled Post: Penrose vs Zeilberger

Being able to see the searches people use to arrive at Maxwell’s Demon can be quite amusing.  Two hardy souls even managed to come from a search for Mathematics. Just how deep in… Continue reading

Unscheduled Post: The British Police

I have always had faith and respect for the British police. That has been, to put it mildly, dented recently.

Twitter

Why English social fears did not stop me joining twitter and starting to like it.

WoW 4: Fractals

I am often a bit rude about fractal art.  With the right software it becomes easy to create interesting, attractive, complicated images without much thought to what is happening.  It is unfair but… Continue reading

Unscheduled Post: Hyperbolic Polydron

What happens when you put seven equilateral triangles round a point?   Inspired by sumidiot who was himself inspired by division by zero who were making paper hyperbolic soccer balls, I thought I would put… Continue reading

Unscheduled Post: Niches and responsibility

There has been a recent blog discussion on the topic of attribution.  As a piece of plankton (not even a small fish) in this world I only suffer from the occasional automatic link… Continue reading

WoW 3: Integer Sequences

Having had a couple of more obscure sites, I thought I would put in an absolute classic: The Encyclopedia of Integer Sequences.  This wonderful resource shows the immense power of online databases.  A geeky… Continue reading

Angle sum formulae

Only a short post this week.  I am on holiday for a few days from tomorrow.  Yippee! In playing with algebraic equations I found myself wanting the angle sum formulae: Being a forgetful… Continue reading

Unscheduled Post: Visualising 3D

I cannot resist replying to a post in Cosmic Variance: Why Can’t We Visualize More Than Three Dimensions? The comments section says much of this already, in addition to the wonderful: Your better off… Continue reading