# Wrong, But Useful: Episode 6

/podcasts/wbu6.mp3

The end of August is upon us… is it really Episode 6 already? Apparently so.

This month, @reflectivemaths (Dave Gale) and I talk about…

- My talk in Edinburgh and the Maths Inspiration people
- Abuse of pie charts: East Lancs and the TES have things mixed up, and graphs you don’t see
- How could you tell if exams were getting easier, and how often should you be allowed to take them?
- ‘Misuse’ of Google’s dictionary of numbers and Colin’s subtitling rage
- Mad Abel - a card game with modulo arithmetic
- Form time ideas - really nice numerical skills practice
- Integer sequence smackdown - congratulations to the Wieferich primes! Tell us: what is your favourite integer sequence?
- Answers to last month’s questions: you can’t feel the mountains on a golf-ball sized Earth (thanks to @notonlyahatrack, who is Will Davies in real life) and Colin wins the race, doing the mo-bot as he does it
- This month’s not-understood-thing: the envelope paradox
- This month’s (classic) puzzle: two trains start 20 miles apart and chug towards each other at 10 miles per hour. Meanwhile, a fly takes off from one train, flies directly to the other train at 15mph, turns around and flies back, zigzagging away until it’s crushed between the trains. How far does the fly fly?

We’re also now in the iTunes store! If you’ve enjoyed WBU, do please give us a nice review. If not, drop us a comment and tell us what we can do better!