What do physicists think of XKCD's claim that we still don't understand the mechanics of ice skating, piling sand, or sticking a balloon to the wall? - Quora
How To Explain Euler's Identity Using Triangles and Spirals | PDF | Exponentiation | Exponential Function
What are some great math and/or physics and/or computer science related short webcomics (like xkcd for instance)? - Quora
![visible light - What's the physics behind XKCD #2027 (time between lightning flash and radio wave burst)? - Physics Stack Exchange visible light - What's the physics behind XKCD #2027 (time between lightning flash and radio wave burst)? - Physics Stack Exchange](https://i.stack.imgur.com/59geY.png)