a mug with a picture of a leafblower falling into a black hole on it

This was designed as a gift to our General Relativity professor. the class knew he hated leaf blowers, so what better parting gift than a mug with a picture of a black hole sucking in a leafblower, never to be seen again with an observer at a constant radius r = R > 2GM?

Many of the students in the class wanted the opportunity to get one themselves to remember the good times in that class. I’m not sure why you would buy this unless you’re a physics student or were in our class specifically – but now it’s available to anyone with this link =]

art by Charlotte:

@moondew_n_tea