I just came across this joke, which requires at least 3 domains of knowledge to find funny (as far as I can count).
What do you get when you cross a mosquito with a rock climber?
Nothing! You can’t cross a vector with a scalar!
Are there any jokes you have that require knowledge in multiple fields of knowledge/study in order to find funny?
ETA: Ugg sorry, reported for wrong forum. Was meant to be in MPSIMS…
I came up with this. It’s dumb, but I like it.
A: How far is that, as the crow flies?
B: It depends on the point of corvuture.
Who led the Pedant’s Revolt? Which Tyler.
I forget where I stole that from.
nm
Moved to MPSIMs.
Why did the chicken cross the road?
It had agyrophilia.
(Note: Googling the term is going to give you a lot of non-relevant hits. You have to find it in a roundabout way.)
There are 10 types of people in the world: Those who understand binary, and those who don’t.
It’s a pun. “Reproduce” here means two things. One, is sexual reproduction/making a baby. The other is being able to reliably demonstrate a reported failure in a component from an engineering perspective. Programmers, when presented with “bug reports” from users, testers, or other programmers, generally need to have a concise set of steps (we call it “steps to reproduce”) that ALWAYS produces the reported failure. Otherwise, any purported “fix” is not verifiable.
Refers to word sizes in computer systems, and low-level implementation thereof. Depending on the amount of space allocated to an Integer variable, the range of numbers that it can hold is limited to a minimum and maximum value. In many systems, at a low level (e.g. assembly or C), attempting to add one to an integer that is already at its maximum value will cause it to “wrap around” like an odometer to it’s minimum value, and the “carry” digit just gets lost.
I’m pretty sure you stole it from me, because that’s what I came in here to post. I first heard it on the SDMB though.
Here’s one:
Three engineers are driving a car down a steep hill when the brakes fail. After a harrowing ride, the driver manages to get it stopped safely at the bottom of the hill, and the three get out of the car to diagnose the problem. The mechanical engineer says they should examine the brake shoes and calipers for faults. The chemical engineer suggests testing the brake fluid to see if it’s contaminated. The software engineers asks, “Shouldn’t we drive back up the hill and try it again to make sure there’s really a problem?”
Basically the same joke - What do you get if you cross an elephant with a plum?
Elephant plum sine Θ
How can you tell a man from a woman?
There’s a vas deferens.
…then I’m guessing it wasn’t stolen from you.
A wealthy playboy is disappointed with his stable of racehorses. He hires an economist, a biologist, and a mathematician to advise him how to develop a winning racehorse. The economist devises a system of incentives to motivate the horses to produce optimal speed. After several horses die of starvation, the playboy fires the economist. He fires the biologist after being told that he will have an award winning racehorse in only 200 generations of careful breeding. Finally, the playboy asks the mathematician if he has solved the problem. The mathematician excitedly answers that after much deep thought he has worked out a beautiful solution: “First assume the horse is a sphere…”
Heard from a bio course at a Jewish college:
What did one red blood cell say to the other? Ad maiah b’esrim.
Okay, raise of hands, how many people here understood that?
I stole this one from someone on the SDMB, and only one person in real life ever thought it was funny, so I gave it back:
Rene Descartes walks into a bar and orders a beer. When it’s finished the bartender walks up and asks if he’d like another one. “I think not,” he said, and disappeared.
“Only one in a million people would find that amusing.”
“Yes. We call that the Dennis Miller ratio.”
Points off for verboseness, terser to write “XKCD” 
When I was in college there was a record store nearby named “Infinite Records and Tapes”.
My computer science friends and I thought that was hilarious.
I always finish that one with a computer engineer who suggests, “How about we all get out and back in again?”
I came up with: Why do you use wormwood to deglaze venison? Because absinthe makes the hart grow fonder.
I was in the staff kitchen at work a few weeks ago trying to maneuver some ice cubes out of the tray–they kept flying out and falling on the floor.
“I feel like Anna Held,” I said. “I Just Can’t Make My Ice Behave!”
[deafening silence – tumbleweeds]
Even not knowing who Anna Held is, that’s funny. And it makes my google fingers itch.
Now raise hands everyone who wants to. (My hand is up.) Google isn’t helping.