Number Drop is a mobile app maths game we came across recently, and have taken the opportunity to have a chat with its creator, Ben. NumberDrop is available for on the Google Play Store and Apple App Store.

# My cat isn’t psychic – but your pet could be!

Do you remember Paul the Octopus? During the 2010 World Cup, in what his Wikipedia page calls “divinations”, Paul was offered boxes of food labelled with different competitors. Whichever box he ate from first was considered his prediction for the match, with some success. Yesterday morning, my son and I did something similar with our… Read more »

# Seeing Theory explains basic stats concepts with whizzy graphics

If you like pretty visualisations and statistics, we’ve found the website for you. Seeing Theory has been put together by a group of undergraduate students at Brown University in the USA, and aims to make statistics more accessible through interactive JavaScript visualisations. Starting from simple coin and dice examples, it builds up to Bayesian inference… Read more »

# Cryptogram competition – results and solution

Ten days ago we posted a cryptogram puzzle, set by mathematician and author Josh Holden. We’ve had a number of entries, some which were so enthusiastic they ignored that we’d said to email them in and tried to post in the comments. However, from the correctly submitted entries, we had one stand-out winner – a… Read more »

# Carnival of Mathematics 158

This is the 158th Carnival of Mathematics, a monthly round-up of interesting maths bits from across the internet. Convention dictates that I now therefore specify some interesting facts about the number 158. Unfortunately I am writing this on a train with no internet access, which will make fulfilling this obligation more than usually challenging.

# Competition: Cryptogram Puzzle

Author and mathematician Josh Holden has come up with a nice puzzle — so we’re posting it as a competition. If you think you can decrypt the message below, send in the decrypted message and a one- or two-sentence description of the mathematical principle behind the encryption key to root@aperiodical.com. The first correct entry received… Read more »

# Carnival of Mathematics 157

The next issue of the Carnival of Mathematics, rounding up blog posts from the month of April, and compiled by Becky, is now online at Lines, Curves, Spirals. The Carnival rounds up maths blog posts from all over the internet, including some from our own Aperiodical. See our Carnival of Mathematics page for more information.