[ExI] puzzle?

[Ben Zaiboc]

On 02/08/2022 17:05, billw wrote:
> Take an accordion:  as you pull it apart the pleats start 
> disappearing, just as if you could pull a wavy wall to make it a 
> straight wall. How can it be?  Straightening out the pleats makes it 
> longer with the same number of pleats.  ????     bill w

It's not longer, though, is it? Not if you measure from crease to 
crease, and add them all together.

If you curl up into a ball, does that make you shorter?

Ha, maybe it's a kind of relativity! Something has a length (or height, 
etc.), measured as a thing in itself, but measured from the outside (a 
different frame of reference), it can have a different height or etc. 
Think of a ball of string. how long is it? 20 metres or 3cm? The answer 
is both, or either (or anything in between), depending how you're 
measuring it.

Ben