Podcast: Play in new window | Download

What's this? Multimedia? Whatever next?

What you are about to click is an audio extravaganza: a mathematical conversation between me and Dave Gale, who is @reflectivemaths on twitter. It's the first episode of **Wrong, But Useful**.

Mentioned in this podcast:

The Maths/Maths podcast (with Samuel Hansen and Peter Rowlett) - currently on hiatus

TES Maths Podcast (with Craig Barton)

Festival of the Spoken Nerd podcast

All Squared (with Katie Steckles and Christian Perfect)

A list of the 10 coolest numbers

Mathematical Magic Show by Martin Gardner

101 Things You Need to Know (and Some You Don't)

And the competition questions (don't phone, it's just for fun):

- What's the title of the podcast all about?
- What's the history of gradians?
- Why is the volume of a pyramid $\frac{1}{3}x^2h$?

## ImpalaKoala

RT Wrong, but Useful: Episode 1: http://t.co/1wf3LKS6pO – New maths podcast featuring @reflectivemaths and @icecolbeveridge .

## reflectivemaths

RT @ImpalaKoala: RT Wrong, but Useful: Episode 1: http://t.co/1wf3LKS6pO – New maths podcast featuring @reflectivemaths and @icecolbever …

## reflectivemaths

Wrong, but Useful: Episode 1: http://t.co/ZIgjbC9b0L – New maths podcast featuring @reflectivemaths and @icecolbeveridge #mathchat

## reflectivemaths

We are live. Episode 1. #WrongButUseful http://t.co/ZIgjbC9b0L @icecolbeveridge

## reflectivemaths

.@just_maths here it is http://t.co/ZIgjbC9b0L #WrongButUseful podcast

## sdempsey

RT @reflectivemaths: .@just_maths here it is http://t.co/ZIgjbC9b0L #WrongButUseful podcast

## reflectivemaths

Wrong but Useful Episode 1: New Maths podcast http://t.co/iEVX3VIw11 #mathchat

## pamelaaobrien

RT @reflectivemaths: New Maths Podcast: Wrong, but Useful http://t.co/iEVX3VIw11 #mathchat @standupmaths @christianp @singingbanana

## twentythree

RT @reflectivemaths: Wrong, but Useful: Episode 1: http://t.co/ZIgjbC9b0L – New maths podcast featuring @reflectivemaths and @icecolbeve …

## reflectivemaths

Wrong, but Useful: Episode 1: – New maths podcast http://t.co/iEVX3VIw11 #mathchat Check it out. Comments welcome!

## icecolbeveridge

In case you missed our attempt to goad @peterrowlett out of retirement, Episode 1 of Wrong, but Useful is now LIVE: http://t.co/BeXkJlJKVO

## reflectivemaths

RT @icecolbeveridge: In case you missed our attempt to goad @peterrowlett out of retirement, Episode 1 of Wrong, but Useful is now LIVE: …

## srcav

RT @reflectivemaths: Wrong, but Useful – new maths podcast http://t.co/iEVX3VIw11 #WrongButUseful @adamcreen @bucharesttutor @chrishargr …

## aperiodical

RT @reflectivemaths: Wrong, but Useful: Episode 1: – New maths podcast http://t.co/iEVX3VIw11 #mathchat cc @aperiodical @samuel_hansen

## srcav

Maths podcast! “Wrong, but Useful: Episode 1: Our maths podcast” http://t.co/oc59RtqcQA #mathchat

## aap03102

@reflectivemaths and @icecolbeveridge Just listened to the podcast (do I get some sort of cerifcate for making it all the way to the end?!)

## reflectivemaths

@aap03102 @icecolbeveridge lol. No. You might get a mention next time if you leave comment though… 🙂

## reflectivemaths

.@aap03102 @icecolbeveridge Changed my mind. Print this hand made certificate, fill in your name. #WrongButUseful http://t.co/iEmPTL6Fi2

## reflectivemaths

Wrong, but Useful: Episode 1: New maths podcast http://t.co/iEVX3VIw11 #mathchat You might like this @helenarney @TimandraHarknes @FOTSN

## Chris Smith @aap03102

It’s reassuring to hear other folk rambling on about numbers and enjoying it too! Just one thought: when compiling an ordered list of an arbitrary ‘n’ favourite numbers surely ‘n’ has to be allocated one of the positions?

## Colin

Not necessarily – if all of my numbers were above 10, none of them would be in the right position.

## Dave Gale

So if I did my top 15 say, then 15 should be one of those numbers because I deemed it an important enough ranking to stop at?

Interesting idea but I’m going to go for ‘coolest’ so I think I can ignore that rule.

Thanks for listening Chris.

Dave

## aap03102

@reflectivemaths @icecolbeveridge the certificate-blogcomment exchange seems entirely justified now!

## reflectivemaths

@aap03102 @icecolbeveridge i made it specially for you. I hope you haven’t retweeted it 😉

## SherriBurroughs

MT @reflectivemaths: Wrong, but Useful: Episode 1: – New maths podcast http://t.co/Y8rV8ZkhKz #mathchat Quite enjoyable – cool #s 🙂

## reflectivemaths

.@SherriBurroughs thanks very much #WrongButUseful cc @icecolbeveridge

## SherriBurroughs

@reflectivemaths @icecolbeveridge Love finding a good maths podcast. Great way to spend some time and think about numbers. Thanks!

## missradders

RT @reflectivemaths: New Maths Podcast: Wrong, but Useful http://t.co/iEVX3VIw11 #mathchat @standupmaths @christianp @singingbanana

## reflectivemaths

New Maths Podcast: Wrong, but Useful http://t.co/iEVX3VIw11 #mathchat @nrichmaths @ncetm

## reflectivemaths

@tj007 hi. You might like this new podcast http://t.co/iEVX3VIw11 #WrongButUseful

## Maths_Master

RT @reflectivemaths: Wrong, but Useful – new maths podcast http://t.co/iEVX3VIw11 #WrongButUseful @jussumchick @L1v1n9byNum63r5 @maths_m …

## icecolbeveridge

@stevenstrogatz @arbesman I talked with @reflectivemaths about exp(π√163) on #wrongbutuseful yesterday! http://t.co/BeXkJlJKVO

## reflectivemaths

RT @icecolbeveridge: @stevenstrogatz @arbesman I talked with @reflectivemaths about exp(π√163) on #wrongbutuseful yesterday! http://t.co …

## icecolbeveridge

@TeaKayB Did you get a chance to listen to the podcast I did with @reflectivemaths? http://t.co/BeXkJlJKVO

## singinghedgehog

Enjoyed first episode of Wrong, but Useful by @reflectivemaths @icecolbeveridge PS George EP Box and

ИƎƎTЯIHT ƧUИIM

## reflectivemaths

“@singinghedgehog: Enjoyed first episode of Wrong, but Useful by @reflectivemaths @icecolbeveridge PS George EP Box and

ИƎƎTЯIHT ƧUИIM”

## reflectivemaths

@singinghedgehog @icecolbeveridge pleased you liked it. How do you type in reverse??!?! #WrongButUseful

## TeaKayB

@icecolbeveridge not yet, but I’m dabbling with podcasts where I haven’t before, so I will check it out

## TeaKayB

@icecolbeveridge 6345789 is a song.

## reflectivemaths

@TeaKayB Really? A song? That’s crazy! 😉 #WrongButUseful

## singinghedgehog

Enjoyed this first episode. It did have that slightly awkward feel of one of the early editions of Math/Maths but I’m sure as you do more it will get slicker.

The item on favourite numbers and what a negative letter would look like did manage to send me rummaging on t’interweb for reverse letter alt codes. Writing in capitals makes backwards writing much easier eg: ИƎƎTЯIHT ƧUИIM and ИƎƎTʇIʇ ƎVITAʚƎИ are both the same length as their value! [cyrillic letters are useful here]

My favourite number would be pi, as my students well know, but they will often say it is a very big number meaning a very long number.

Regarding decimal things, Gradians are French and decimal time also; they ran in decimal time in the late 1790s. http://www.decimaltime.hynes.net/ is the best source of info I have found.

The nicest ‘proof’ of the pyramid formula is by making 3 right angled triangular pyramids and fitting them together to make a cube.

Looking forward to the next one!

## Colin

Glad you liked it! Thanks for the feedback :o)

## reflectivemaths

Awkward feel was just what we were going for 😉

Cool negative letters. I like the idea of negative letters being written under the writing line, a bit like the negatives on the y-axis goes ‘under’ the x-axis.

I’m undecided as to whether I think pi counts as ‘cool’.

Thanks for the link.

And, thanks for listening!

Dave

## singinghedgehog

@reflectivemaths @icecolbeveridge by using ALT codes as I have explained in my long comment on the show page.

## stevenstrogatz

RT @icecolbeveridge: @stevenstrogatz @arbesman I talked with @reflectivemaths about exp(π√163) on #wrongbutuseful yesterday! http://t.co …

## TeaKayB

Listening to Wrong but Useful podcast ep. 1: http://t.co/mQe0JrZ9Sd Waffling about maths, basically. What’s not to like?

## TommyTR1LLFiger

RT @icecolbeveridge: @stevenstrogatz @arbesman I talked with @reflectivemaths about exp(π√163) on #wrongbutuseful yesterday! http://t.co …

## icecolbeveridge

RT @TeaKayB: Listening to Wrong but Useful podcast ep. 1: http://t.co/mQe0JrZ9Sd Waffling about maths, basically. What’s not to like?

## icecolbeveridge

@Peter_Price Here you go: http://t.co/BeXkJlJKVO Enjoy! (cc @reflectivemaths)

## mathsatschool

RT @reflectivemaths: New Maths Podcast: Wrong, but Useful http://t.co/iEVX3VIw11 #mathchat @nrichmaths @ncetm

## mathsatschool

@reflectivemaths @icecolbeveridge gonna give you a listen and an RT. Good work, guys x

## arbesman

@icecolbeveridge @reflectivemaths @stevenstrogatz Fun!

## reflectivemaths

@MouldS hiya. You might like our new Maths podcast #WrongButUseful http://t.co/iEVX3VIw11

## twentythree

@icecolbeveridge @reflectivemaths excellent podcast guys, really enjoyed it

## twentythree

Superb new maths podcast from @icecolbeveridge & @reflectivemaths #wrongbutuseful http://t.co/g96wIJuGVD

## reflectivemaths

RT @twentythree: Superb new maths podcast from @icecolbeveridge & @reflectivemaths #wrongbutuseful http://t.co/g96wIJuGVD

## reflectivemaths

@twentythree @icecolbeveridge pleased you liked it. Any help with the pyramid?

## kennypieper

“@twentythree: Superb new maths podcast from @icecolbeveridge & @reflectivemaths #wrongbutuseful http://t.co/cxZaR9WIx4” @MrSMathsWizard

## twentythree

Great podcast,very enjoyable. Beginning and ending are a little jarring though, you need a little something to bookend it imo.

## Colin

You mean… production values?!

## twentythree

Math/maths has their ringing sound and let’s be fair, their production values are pretty low

## reflectivemaths

Fair point. Colin’s into music so I’m sure he can get us a jingle sorted 😉

Near-rhymes for useful: http://www.rhymezone.com/r/rhyme.cgi?Word=useful&typeofrhyme=nry&loc=perfnry

## Colin

Hang on, you’re the one with half a degree in it!

## reflectivemaths

Hi all. In case you’ve missed it: The new maths podcast http://t.co/iEVX3VIw11 #WrongButUseful

## icecolbeveridge

RT @reflectivemaths: Hi all. In case you’ve missed it: The new maths podcast http://t.co/iEVX3VIw11 #WrongButUseful

## reflectivemaths

Hi all. In case you’ve missed it: The new maths podcast http://t.co/iEVX3VIw11 #WrongButUseful #mathchat

Pingback: Wrong, but Useful podcast | reflectivemaths's Blog

## BlessTheTeacher

RT @kennypieper: “@twentythree: Superb new maths podcast from @icecolbeveridge & @reflectivemaths #wrongbutuseful http://t.co/cxZaR9 …

## msgbi

Wrong, but Useful: Episode 1 – Flying Colours Maths podcast http://t.co/5CWQKO8RLz

## srcav

RT @reflectivemaths: Hi all. In case you’ve missed it: The new maths podcast http://t.co/iEVX3VIw11 #WrongButUseful

## Maths_Master

RT @reflectivemaths: Hi all. In case you’ve missed it: The new maths podcast http://t.co/iEVX3VIw11 #WrongButUseful

## Roberthacking

## bucharesttutor

## KerryPulleyn

## notonlyahatrack

Pingback: Travels in a Mathematical World

Pingback: The Aperiodical | George E. P. Box (1919-2013)

Pingback: Volume of a Pyramid | reflectivemaths's Blog

## reflectivemaths

The #WrongButUseful podcast is due a new episode soon. Any more comments on episode one? http://t.co/c9aSbETjK2 #mathchat

## icecolbeveridge

RT @reflectivemaths: The #WrongButUseful podcast is due a new episode soon. Any more comments on episode one? http://t.co/c9aSbETjK2 #mathc…

## karenshancock

@reflectivemaths This may be something for @icecolbeveridge rather than you – can you set up show note links so that they open a new tab?

## karenshancock

@reflectivemaths @icecolbeveridge It’s just was listening to podcast, I clicked on 10 cool numbers & it navigated me away from podcast! #doh

## reflectivemaths

Good point @karenshancock . Get to it @icecolbeveridge 😉

Pingback: Maths blogs worth a read | reflectivemaths's Blog

Pingback: Wrong, but useful | cavmaths

## thththalia

RT @reflectivemaths: #wrongbutuseful Previous episodes:

http://t.co/WfwFbFY5eE

http://t.co/rkCXMzmuDS

http://t.co/ngLw2iEw2M

## STEP Maths

Heeeey, I’m abit late for giving any feedback for the 1st episode but only just found out about your podcasts when someone shared your episode 28 (legoland intro :P) with me…so decided to start from the beginning episode 1 #WrongButUseful. Keep up the the podcasting!

BTW – what kind of microphone do you use for your podcasting?

## Colin

Thanks! These days, I have a Zalman ZMMIC1 lapel mic, but I think I was using a Sennheiser headset mic at the start. I know Dave has a posh stand-alone mic — I’ll ask about it when we record next :o)