# Slider puzzle

I had a play with a site called fyrebug.com and made a slider puzzle using the Travels in a Mathematical World podcast image. I mention the slider puzzle in the 14-15 puzzle form in my puzzles talk and you can read about the history of it at Archimedes’ Lab. You can play the Travels in… Read more »

# Podcast: Episode 46 – Frank Kelly, random processes, networks and optimization

These are the show notes for episode 46 of the Travels in a Mathematical World Podcast. 46 is the number of human chromosomes. More about 46 from Number Gossip. Prof Frank Kelly, Master of Christ’s College Cambridge, talks about his career researching random processes, networks and optimization both within the University of Cambridge and through… Read more »

# Podcast: Episode 45 – Maths news with Sarah Shepherd

These are the show notes for episode 45 of the Travels in a Mathematical World Podcast. 45 is the only number that is the sum of its digits multiplied by 5 More about 45 from Number Gossip. This week on the podcast I met Sarah Shepherd, PhD student at the University of Nottingham and Editor… Read more »

# Maths money savers

Matt Parker, who we heard from in Travels in a Mathematical World episode 31, stars in a new series of videos for the TDA. In each, Matt uses maths to solve a problem involving money. According to a press release the aim is to recruit maths teachers. Dude, where’s my petrol money Plane facts Skills… Read more »

# Podcast: Episode 44 – Andrew Cates, his career

These are the show notes for episode 44 of the Travels in a Mathematical World Podcast. 44 is the smallest number which is the sum of a reversible pair of non-palindromic primes. More about 44 from Number Gossip. Dr Andrew Cates, CEO of SOS Children, talks about his career working for Shell as strategy consultancy,… Read more »

# Podcast: Episode 43 – Victor Arulchandran, wave dispersion and PhD skills

These are the show notes for episode 43 of the Travels in a Mathematical World Podcast. 43 is the smallest non-palindromic prime which on subtracting its reverse gives a perfect square. More about 43 from Number Gossip. This time on the podcast Victor Arulchandran of Brunel University talked to me (in a quite noisy tea… Read more »

# Barcodes

Recently I found out via @beverycool on Twitter that Wolfram|Alpha encodes text as barcodes. For example, here is Peter Rowlett: Just imagine the uses! Well. Hmm. Not sure how useful, but it certainly seems neat! ;) @beverycool is suggesting the Google Doodle for 7th October (a barcode of the word Google) might have been created… Read more »