From SNOLABscience https://twitter.com/SNOLABscience on Twitter: Throwback to #PiDay at SNOLAB in 2019! How are you celebrating Pi today? #PiDay2021 https://twitter.com/SNOLABscience/status/1371180227695628293/photo/1 https://chirp.cooleysekula.net/attachment/71388