Hundreds of scientists and supporters gathered Sunday in Boston’s Copley Square to rally for their work and against the perceived war on science by President Donald Trump.
Though the rally was serious in basis, some demonstrators brought signs that used science and math to poke fun at the president (cue the “pi” jokes.)
Here are some of the most pun-tastic signs:
Take a look at all the signs in this video:
Some other signs from the scene: