19,868 reputation
bio website plaza.ufl.edu/gruberan
location Gainesville, FL
visits member for 3 years, 8 months
seen yesterday

did you know that cigarette lighters were invented before matches?

Interesting reading:

First, there are many good posts to be found among the longest answers.

I'm a fan of the posts by this mysterious stranger. Sometimes, we need a Man in Black to chase.

I have learned a lot from Arturo Magidin's posts here about group theory. Here's one of my favorite examples.