# MathsJam Gathering 2016

This is a list of talks given at the 2016 MathsJam Weekend, along with a brief description and slides where we have them. There's also a Songbook of words from the MathsJamJam which happened in 2016.

The gathering took place on 12th-13th November 2016.

## Saturday

### Session 1a : 14:15 - 15:02

#### Welcome to the MathsJam, 2016 - Colin Wright

#### Constructions with Obstructions - Colin Wright

Description

#### Name That Polynomial - David Bedford

David has devised a method to work out what polynomial you're thinking of, given only the knowledge that it's in a certain form and its value at two points.

#### More than one way to skin a cat - Alison Kiddle

Description

#### Bills of Mortality - Martyn Parker

Martyn's found some old lists of how and why people died, and is sharing it as an example of some amusing statistics.

### Session 1b : 15:25 - 16:12

#### Everything Old is New Again, Again - Adam Atkinson

Adam has discovered a story which involves some people misunderstanding how gravity works, and shares it with us as a cautionary tale.

#### Factorising A Large Semiprime When The Person Who Supplied It Has Been A Bit Careless - Phil Ramsden

At Imperial, I run the First Year Mathematical Computation course. Each year, there's a coursework task on RSA ciphers, which involves using my public key to send messages, and making one of your own to receive them. If you can factorise my N, you get 100%, even if you get everything else wrong. But there's a catch: if I factorise yours, you pay a 5% penalty. I'm not a cryptanalyst or a number theorist, and I don't own a supercomputer. I have no more than a few minutes to spend attacking any one student's N. But I'm sneaky, and I have a few tricks up my sleeve. Just between ourselves, I'd like to share a few of them.

#### Wau - a constant more important than e or pi!!! - Derek Couzens

Description

#### Is there a perfect maths font? - Adam Townsend

Description

#### Mathematical Toddler Toys - Peter Rowlett

Peter has been trying to find mathematical toys for his small human, including a Hoberman Sphere, and a selection of good books including Julia Donaldson's Monkey Puzzle.

#### A mathematical card trick from Moscow's Olympiads - Jorge Nuno Silva

Description

### Session 1c : 16:35- 17:22

#### Jonathan Histed - Boomerangs

Description

#### Kathryn Taylor - Lucky Numbers

Description

#### Martin Owen - More effective strategies for experimenting

Description

#### Rogerio Martins - The (not so simple!) chain fountain

Description

#### Tarim - What is real?

Description

### Session 1d : 17:45 - 18:32

#### John Bibby - World Maths Year & the need for more maths t-shirts

Description

#### Michael Gibson - Guess Who missed a trick! (Turn and face the ternary)

Description

#### Ben Sparks - Eine kleine Mathmusik

Description

## Sunday

### Session 2a : 08:50 - 09:37

#### Callum Mulligan - Art and Mathematics: A tale of logic and creativity

Description

#### Robert Low - Arithmetic for the (three-fingered) mathematicia

Description

### Session 2b : 10:00 - 10:47

#### Gina Worth - Spirolaterals, maybe with a bit of time travel

Description

#### Nicholas Korpelainen - Alice and Bob eat some pizza

Description

#### Katie Steckles - Spreadsheet on my phone/Multiples of nine

Description

### Session 2c : 11:15 - 11:48

#### Noel France - Pillow Problem 49 and a cube of cheese

Description

### Session 2d : 12:06 - 12:39

#### Joel Haddley - How Many Pizzas?

Description

#### David Singmaster - The Problems of Abbot Albert, 13C

Description

#### Colin Beveridge - On the Chalkdust Crossnumber, straight lines, and projective geometry

Description

## More Detailed Abstracts

These are in the order talks were proposed, so you may need to use a search function to find the one you're looking for.