
Pi Day is an annual celebration of the world’s favourite transcendental constant, held each year on the fourteenth day of March – 3.14 in the US date format. The irrational number, defined by the ratio of a circle’s circumference to its diameter, has been calculated to 13 trillion digits, but no pattern in the number has yet emerged.
There are many ways to celebrate Pi Day – reading “piems”, testing your ability to recall the digits of Pi, or best of all, making (and eating) pies.
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This year, Kano is giving away the latest edition of their hugely popular mini-computer kits, including a 10.1 inch displayscreen and peripherals,to one lucky èƵ reader. A computer that all ages can build and code themselves, the Kano kit is now 50 per cent faster with its latest upgrade to the revolutionary Raspberry Pi 3 with Wi-Fi and Bluetooth on board. The DIY computer kit has new games and art making challenges, all sharable on Kano World, a creative community for tech beginners
For a chance to win, just answer the following question: what is the 10th digit of Pi?
Send your answer to competitions@newscientist.com.The closing date for entries is 23.59 GMT on Monday 28 March 2016. Terms and conditions apply.

Terms and conditions
- This competition is open to anyone aged 18 or over, except for employees of Reed Business Information Limited and any company involved in the sponsorship of the competition.
- Entry is open only to subscribers and registered users. Submit your entry, including your name and email address, via email using the email address or email link provided on the èƵ Pi Day competition page.
- Entries must be submitted in the name of a single individual. The individual submitting the entry is the only individual who will be entered into the competition.
- Every entrant will be entered into a draw to win a Kano computer kit.Prize cannot be exchanged.
- Only one entry is permitted per person. No purchase is necessary.
- èƵshall not be responsible for technical errors in telecommunication networks, internet access or otherwise, preventing entry at this website.
- Entries must be received by 28March2016at 23:59 GMT. Entries made after this time will not be counted. The winner will be the person submitting the 1,000th entry, or closest thereby.
- Every effort will be made to notify the winner by email by 4 April 2016.
- Submitting your entry constitutes your consent for us to use your entry, name and photos (if applicable) for editorial or publicity purposes.
- Reed Business Information Limited reserves the right to ask for proof of age and evidence to verify the identity of an entrant at any time, and may use any channels and methods available to carry out checks of any details provided. Entrants may only enter the competition in their own name. Entries submitted through agents or third parties will not be accepted.
- You hereby warrant that your entry will not infringe the intellectual property, privacy or any other rights of any third party, and will not contain anything which is libellous, defamatory, obscene, indecent, harassing or threatening.
- Winners' names are available by writing to "Pi Day Competition", èƵ, 110 High Holborn, London, WC1V 6EU, UK.
- èƵreserves the right to change or withdraw the competition and/or prize at any time.
- By entering the competition, entrants are deemed to have accepted these terms and conditions.
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