Cosmos Mag Winter 2018_8

A letter/Podcast to the editor. Those listeners to earlier podcasts will see the full complexity of the Periodic table and appreciate the struggle to understand mixed with good will.

MP4 recording     MP3 recording

So many tiny error such as these (green square for my correction) do make it so hard to work out what is going on.  Good luck I think it is a fantastic read. Thank you Cosmos