This thread is for those who like Mathematics, Numbers etc.,My thread on fancy numbers is just a common thread whereas this may be for those who have fond or like towards mathematics, numbers but related to common things too.
From the response of Kailash in the said thread, I relate to a recently celebrated Pi day(14th March) and it is even declared as a fun holiday in some part of the world. Since in those part of the world, the date is written as the month and date format, 14th March (3/14) which is first few digit approximation of the Greek letter Pi 3.14.......
Though there is objection by some other part either relate with another approximation called Tau which has double the value of Pi (6.28) and called Tau day(28th June) is celebrated. So some people take both the values and celebrate Tau Time on Pi day, that is at 6.28 pm on 14th March.
Nowadays, businessmen specifically the Pie makers(though official Pie day is on 23rd January) are coming with various business taglines say 'Celebrate Pi day with Pie' or Cost of Pizza is $3.14. And another interesting thing I read on this Pizza related to Pi is Volume of a Pizza is Pi*z*z*a whose radius is z and height is a (using the formula pi x r to the power 2 x h)
Those who have missed this Pi day still have more chances to celebrate Pi approximation day because the value is written as 22/7 and in some part of the world 22nd, July will be celebrated as Pi approximation day.
14th March this year had another event, every social media occupied is with Stephen Hawkin, who is very much attached with time travel passed away along with Einstein Birthday.
Members, it is your turn to come up with interesting such things relating mathematics with common things.