Happy Pi Day and Happy Birthday Albert Einstein! Both Pi and Einstein are very important in the fiel
Happy Pi Day and Happy Birthday Albert Einstein! Both Pi and Einstein are very important in the fields of astronomy and science. #piday2016 #piday #lowellobservatory #lowell #observatory #science #space #astronomy #flagstaffaz #flagstaff #arizona -- source link
#lowell#observatory#science#lowellobservatory#astronomy#arizona#flagstaffaz#piday2016#flagstaff