Notice that if you have a Platonic solid and you calculate the number of Vertices (ie. corners) minus the number of Edges plus the number of Faces you always get 2! That is, you seem to have the following equation:
Is this a freakish coincidence or is this there something going on here? Since we study math, we know that freakish coincidences usually mean there’s cool math lurking around.
On Wednesday, October 1st the aptly named Matt Clay of the OU Math Department will give a talk in the Math Club about Euler’s Formula and show how you can prove it using Play-Doh®. The details are:
Speaker: Matt Clay, OU
Title: A Convenient Truth: V – E + F =2
Abstract: Using Play-Doh, we will investigate Euler’s Formula V – E + F = 2.
Using Al Gore’s “Inconvenient Truth” we will give a proof. Unfortunately,
Melissa Etheridge has declined to attend and perform her Grammy award
winning song “I Need to Wake Up (and Do Math)”.
The talk will be on Wednesday, October 1st at 5pm in PHSC 1105. As usual, there’ll be free pizza! Unusually, there’ll be free Play-Doh, too.
If you’d like to print out the flyer, you can find it here.
Addendum: If you are interested in the “global warming” proof of Euler’s formula which Matt talked about yesterday, you can find it here:
The website has nineteen (19!) different proofs of Euler’s formula. Matt used a variation on proof #14. He also suggested the people check out proof #6 as another cool one.