Joke time: How does it change many dyslexics to take a lightbulb?

what's the difference between a dead baby, and a sandwich?
I don't fuck my sandwiches before I eat them.

whats the difference between a baby and a trampoline..?
I take my shoes of to jump on a trampoline
 
what do you get when you cross a rat with a mosquito?













Punch line:

(rat)(mosquito)sin theta

















punch line part 2:

because they are both vectors (of disease)













get it?:erk:
 
It's a play on cross products.

There are whole websites dedicated to math/science type jokes. Honestly, they aren't too funny even if you do understand them.