Demon Slayer: Infinity Castleis finally out in Japan, and it’s already living up to the hype. Fan reactions from social media indicate that the writing and visuals are just as good as Mugen Train, if ...

A set of the six sides of a die matches up one-to-one with a set of red shoes, helping illustrate Georg Cantor's set theorem. Image courtesy of GBH/NOVA It can be easy to take math for granted. But ...