23 Sep
2017
23 Sep
'17
7:45 p.m.
On Fri, 22 Sep 2017 21:47:16 +0000 (UTC) jim bell <jdb10987@yahoo.com> wrote:
Here's a brain-teaser: Is mathematics "discovered" or "invented"? That's not my question. http://www.pbs.org/wgbh/nova/blogs/physics/2015/04/great-math-mystery/ Jim Bell
Here's an interesting piece of engineering https://upload.wikimedia.org/wikipedia/commons/thumb/3/36/Paralia_sulcata_di... I'm sure it's fully patented ^-^