Category Archives: Pi Day

Celebrating The Infinity Of Pi Day With Thermochromic Foil

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Thermal printer with a loop of thermochromic foil inserted in it, printing digits of Pi on the loop.The digits gradually disappear from the foil as it exits the printer.

It might take you some time to understand what’s happening in the video that Hackaday alum [Moritz Sivers] shared with us. This is {Moritz]’s contribution for this year’s Pi Day …read more Continue reading Celebrating The Infinity Of Pi Day With Thermochromic Foil→

Let Your Pi Make a Pie Chart for Your Pie

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March 14th is “Pi Day”, for reasons which should be obvious to our more mathematically inclined readers. As you are not reading this post on March 14th, that must mean we’re either fashionably late to Pi Day 2019, or exceptionally early for Pi Day 2020. But in either event, we’ve …read more

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Archimedes Would Have Known Better If He Could Count To A Million

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Today is March 14th, or Pi Day because 3.14 is March 14th rendered in month.day date format. A very slightly better way to celebrate the ratio of a circle’s circumference to its diameter is July 22nd, or 22/7 written in day/month order, a fractional approximation of pi that’s been used for thousands of years and is a better fit than 3.14. Celebrating Pi Day on July 22nd also has the advantage of eschewing middle-endian date formatting.

But Pi Day is completely wrong. We should be celebrating Tau Day, to celebrate the ratio of the circumference to the radius instead of …read more

Continue reading Archimedes Would Have Known Better If He Could Count To A Million→