From royalsociety https://twitter.com/royalsociety on Twitter: Leiden, a Dutch university city, where science & maths blend with art to highlight the beauty of famous mathematical equations @atlasobscura https://www.atlasobscura.com/places/leidens-wall-formulae?utm_source=hootsuite&utm_medium=social&utm_campaign=standard (Photos -Vysotsky) https://twitter.com/royalsociety/status/945021387009388553/photo/1 https://chirp.cooleysekula.net/attachment/46246