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Through the Looking Glass (Part 1)

25/2/2015

 
It arrived! Having ordered a copy of Alex Bellos's second book, Alex Through the Looking Glass right after discovering it existed on 11th February, the gods at Amazon finally decided to deposit it on my doormat this afternoon. I nearly crushed it when I opened the door...
Picture
So after hacking into it with an over-large knife (couldn't find the scissors) and discarding the packaging in a very haphazard fashion, I started reading. I've read three chapters tonight, on and off, and am going to finish Chapter 4 before I go to bed (although it does appear to be about conic sections...urrrrgh). I absolutely loved his first book (Adventures in Numberland) and have read it cover to cover at least three or four times, and dipped into it for lesson ideas (it's looking very dog-eared now) and I'm pleased to say I'm enjoying this one just as much. 

So far this evening I've discovered:
  • Shakespeare is responsible for turning the mathematical word "odd" into its current meaning of "strange" or "unusual"; prior to his writing, everyone understood it in a mathematical sense only.
  • Odd numbers are usually associated with more "exciting" products (Levi 501s, 7UP) while even numbers are more reliable (WD40). And interestingly, they've done studies that show that people will pay more for products depending on the numbers associated with them.
  • Why lots of people have the number 7 as their lucky number.
  • How Benford's Law is used to catch fraudsters and why the number 1 is the leading digit of about 30% of most data sets.
  • A solution to an argument I was having with my tutor group yesterday morning about how everything is related to maths - one of them got quite upset when I showed them this as apparently I'd broken Biology forever.
  • Exactly how triangulation works and why it was so useful for navigation before laser methods for measuring distances. Sadly, I discovered that there are no intact trig pillars other than church spires anywhere near my house or school, so that's that field trip idea in the bin. Despite this, I'm definitely going to show this in class the next time I teach trigonometry. You can check your local trig pillars on this lovely little site.

If you like maths books, particularly those which don't give you a headache because the maths requires you to dig out university notes to understand the first paragraph, I'm recommending this. Of course, I'm only three chapters in, and the bit on conic sections may kill me (3D geometry is not my favourite thing ever). Wish me luck!



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