Analogies involving socks:
- The Axiom of Choice
is necessary to select a set from
an infinite number of pairs of socks,
but not from an infinite number of pairs of shoes.
- Quantum entanglement: when you have a
pair of socks and you put one of them on your left foot,
the other one becomes the "right sock"
no matter where it is located in the universe.
- If g and h are elements of a group, then
(gh)^{-1} = h^{-1} g^{-1} .
You take off socks and shoes in the opposite order that you put them on.
The first is from Bertrand Russell.
The second I came across on
Tanya Khovanova's site (under Math Jokes;
it's not a serious analogy for entanglement).
The third came from a web search for
analogy with socks.
A father and two young sons were hiking in the rocks near were
I was climbing today. One of the boys was exploring an area
under some rocks which led to a discussion of possible hazards:
boy: | There
could be giant snakes in here. |
dad: | Maybe
even a centipede. I hear they're dangerous. |
boy: | Centipede.
That was a video game from the 1900s. |
Time lapse video of my Joshua tree flowering: