Science hoodies | TFI Pi Day hoodie (premium)
Comfy and warm, premium quality, funny Pi Day hoodie featuring the slogan "TFI Pi Day".
Pi Day happens every year on the 14th March (which happens to coincide with Einsteins birthday) or as they say in America, 3/14.
As Im sure you know, the first 3 digits of pi are 3.14.
Incidentally, also watch out for Pi Approximation Day on the 22nd of July, or 22/7 in the day/month day format.
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