Gearhead_Shem_Tov - 17-1-2019 at 21:59
An interesting article about an elderly Periodic Table of Elements from 1885:
https://phys.org/news/2019-01-world-oldest-periodic-table-st...
I love periodic tables. I once made one with clay tiles impressed with element names and numbers in Cuneiform.
-Bobby
j_sum1 - 17-1-2019 at 23:19
Objectivity made a video of this a while back.
https://www.youtube.com/watch?v=2eRLeS1UdPo
Some of the comment links show its restoration - also interesting.