Memory Remembering Pi

Memory Minis

camels Know Your Camels

How many humps? Never get a Bactrian mixed up with a Dromedary again.

Pi symbol Remembering Pi

Ever wish you could calculate Pi to eight decimal places? Watch this... and you won’t have to.

checkered shirt Necessary Spelling

Some words get misspellllleed all the time. Here’s a quick way to remember one of them flawlessly.

On The BBC


Skip to top

BBC © 2014 The BBC is not responsible for the content of external sites. Read more.

This page is best viewed in an up-to-date web browser with style sheets (CSS) enabled. While you will be able to view the content of this page in your current browser, you will not be able to get the full visual experience. Please consider upgrading your browser software or enabling style sheets (CSS) if you are able to do so.