14 Apr
2020
14 Apr
'20
6:24 p.m.
I made a major blunder in this article: 10 to the power of 40 is the approximate ratio of the size of the observable universe to the size of a proton. (What I wrote about 10 to the 40 is very not true.) Also, the human body is several orders of magnitude away from being the geometric mean of the two. I mention this because I’m worried that some of you will vaguely recall my erroneous statement and spread it to others. Jim Propp On Sun, Apr 12, 2020 at 9:05 AM James Propp <jamespropp@gmail.com> wrote:
I've put a draft of my upcoming Mathematical Enchantments essay on the web at
http://mathenchant.org/060-draft4.pdf
Comments are welcome!
Thanks,
Jim