### Archive

Posts Tagged ‘Pi’

## Mathematical Graffiti

June 1, 2014 1 comment

Pi appears in the strangest of places. It is, of course, the ratio of circumference to diameter for all circles. It is also half the period of the sine cure and cosine curve, and hence a sinusoidal wave. It’s in the period of a pendulum, heisenberg’s uncertainty principle, cosmology, Fluid Dynamics and many other maths/physics formulae. It crops up in nature in the double helix, it’s even the mean meandering ratio. (The ratio of a rivers actual length, to the straight line distance from source to end.)

This, however, seems to be ridiculous:

I spotted this piece of graffiti on a toilet door at a wedding, and before you ask no I didn’t put it there.

I did wonder if it could be an accident, could some of the paint have peeled off and just happened to form this Shape? Perhaps, but there was hardly any other paint missing and the shape was so perfect I decided it had to be deliberate.

So, is there a rogue mathematician tagging the toilets of Yorkshire with his favourite constants, or was it a Greek person who was caught in the act after just 1 letter?

Have you encountered, or committed any mathematical graffiti? I’d love to hear about it,and see it if you have!

Categories: #MTBoS, Maths, Strange Tags: , ,

## Pi, and Mary Poppins

Yesterday we were watching Mary Poppins and we noticed something we hadn’t noticed before. The most surprising thing is probably that is was my partner, not I, that noticed it. What she noticed can be seen here:

“Why have they got pi on that kite?” she asked.

I’ve been thinking about that question. My first thought was that it may be completely random, although I dismissed that idea fairly quickly. This is a big budget Disney movie, it’s highly unlikely that anything in it is there randomly or by accident. So why is it there? What does it signify?

My next thought was that Mr Banks is acting a little irrationally at that point in the film, and Pi is the most famous of all irrational numbers, perhaps the film makers put it there for this reason? (I did Google this, and not much came up but it does seem this idea had been had before)

Perhaps the film makers just love maths, and wanted to include the picture symbol as a nod to that? Perhaps there was some significance to Pi’s infinite nature?

Do you know the answer? Have you spotted Pi, or any other maths links in other Disney films? In any films for that matter? I’d love to know if you have!

Categories: Commentary, Maths, Strange