Do you know that locally, the metric on a Penrose diagram is conformally equivalent to the metric of the spacetime depicted, but if you wear the Penrose Diagram T-Shirt locally you'll just be seen as a very fashionable and possibly interesting person?
Official pbsspacetime merch
This product is made to order and ships within 7-10 business days.
Standard fit t-shirt
Double-needle sleeve and bottom hems
High stitch density for smoother printing surface
Taped neck and shoulders
5/8" rib collar
Made from 100% Pre-shrunken Cotton
Heather & Neon colors are made from 65% polyester/35% cotton