Which thumbnail do you like better?
Added 2022-03-17 18:23:33 +0000 UTCNew video shortly will be about Yttrium - do you like the blue or the superconductor/magnet?
(I can't attach pictures to a "poll" post, so just leave a comment)
New video shortly will be about Yttrium - do you like the blue or the superconductor/magnet?
(I can't attach pictures to a "poll" post, so just leave a comment)
