Even I don't really get the math part, but the pun is superbly horrendous.

xkcd

413 nanohertz is a very high frequency. I'm too lazy to convert it and find out where it sits in the spectrum, but if she could get up I'm sure it would be close to a black eye.

No, it's not. Nano means 1/1,000,000,000, so 413 nHz is a very low frequency - one period in about 28 days. Not that I ever wanted to know.

Just had to add this one. It boggles the mind. (Check the mouseover.)

xkcd410

Woody

Artemis

Sorry, Lara, you're absolutely right. I told you I was too lazy to calculate it, and as it turns out I was also too lazy to visualize it correctly.

Interesting math problem, that. That frequency is below the range of human hearing, so that's probably why us guys don't hear it sneaking up on us.

What, did you ladies think we don't suffer through it too?

Ann

Here's another bad one.

282

And here's the last one I'll post, but there are plenty more that are hilarious.

Resonance