Thursday, September 29, 2016

Thursday: thickness

I was bringing an exam from one place to another today.  The exam was two pages.  One the way I thought, "hmm.  It feels a bit thick."  I take a look, because what else do I have to do on my walk, and realized I had grabbed an extra exam.

It think it's crazy that I can tell the difference between two pieces of paper and four.  Sure, it's double the thickness.  But since a piece of paper is about 0.1mm thick it means I could tell the difference of 0.2mm.  It seems a bit crazy to be able to detect that with our fingers.

1 comment:

betsy said...

Maybe it's more about the flexibility? You could feel it was more rigid? There must be a physics problem in there somewhere ;)