That history echoes thing
From Ed Conway on rare earths:
From neodymium to selenium and yttrium,
Ah, yes, selenium is not a rare earth while scandium is.
And back while I was in this, right at the beginning in fact. The encyclopedias, the books on rare earths, they all said that scandium was used to propagate seeds. But when I spoke to the sort of people who propagated seens they knew nothing of this. Then a conversation with Joe Sauceville who was in his 80s at the time. He did do a bit of work on scandium. And he also made the selenium additive for urea which was then added into fertilisers and other things you might propagate seeds with. There are areas of the world – from memory and don’t test me on this but a swathe across from Iran to Kazakhstan being one such – where the soil is selenium deficient. So, you add a bit and the plants grow better.
Ah…..selenium is Se, scandium is Sc, and – again don’t test me on this – I think it’s the chloride that’s used to boost that propagation of seed.
So, SeCl, ScCl, we can imagine that somwhere down the line someone slipped the c for the e into it. And then as these sorts of entries of encyclopedias and rare earth books are created by simply copying selections from the last generation of them there we have it. The error propagates through the information space. And, yes, I did once meet the journo who had just written the Metal Bulletin rare earths book – as he said, he just copied from all the previous ones.
Which is, I think, fun. That we’re still getting this selenium mistake these decades later. Of course, this is just the subs at the Sunday Times getting it worng but it does amuse that it’s that same general error.
