Well, all these have a chemical called neodymium.
Different types of such glasses, spectacles, and shades are made by adding small amounts of neodymium to other materials.
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| Didymium glasses |
Neodymium-iron-boron glass can be used for making magnifying glasses and optical filters.
This belongs to the series called lanthanides, about which I wrote on the 13th.
Neodymium was discovered in 1885 by Carl Auer von Welsbach, who named it after the Greek words neos didymos meaning new twin because it was separated from another element called praseodymium.
Neodymium is a silvery-white metal that tarnishes quickly in air and moisture.
It has a high melting point of 1,016°C and a boiling point of 3,074°C. It is a hard and slightly malleable metal.
Besides its use in glassware, Neodymium finds application in the making of magnets. Neodymium magnets are the strongest permanent magnets known and are used in many devices such as headphones, speakers, motors, generators, hard disk drives, and MRI machines.
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Didymium glasses image from Wikipedia
The information provided in this post has been obtained from multiple, authentic resources. However, it is presented in an abridged format and might not have all the details. Therefore, before acting on any information, readers are requested to exercise caution and do further research.
This post is a part of #BlogchatterA2Z 2023. I am also on A2Z April Challenge.
I am always learning something new from your posts
ReplyDeleteExchanging A to Z visits
Hi Anne - Thank you.
DeleteI wonder if that is what makes my glasses go darker when I step out into the sunlight.
ReplyDeleteYes, going by what I have read in science journals.
DeleteI am impressed, You know a lot of chemical names I never heard of.
ReplyDeleteI was a chemistry student.
DeleteAh, filtering ultraviolet light is so very important.
ReplyDeleteHi Pradeep - I'll be back to read through all your entries - they sound fascinating and so informative. I've a book on chemistry here to read - must get to it sometime! It's great you're using your interest in chemistry for the A- Z - cheers Hilary
ReplyDeleteIt's fascinating to know how things are made.
ReplyDeleteHi Chrys - Thank you.
DeleteI read all these different used people have found for the different elements you are writing about, and I wonder how did they ever figure out to use this stuff? I'm going to guess there is a lot of trial and error!
ReplyDeleteThank you so much for going through all my posts from A to N and keying in your comments.
DeleteVery much appreciated.
Science is quite complicated, and scientific experiments can be quite painstaking.
At the same time, a number of scientific theories have a practical side to them, and once we figure that out, science can be quite interesting.
How interesting, Pradeep! I am now going to read your blogs backwards because I think you can teach me a lot :)
ReplyDeleteThank you, Val. Take your time, my posts aren't too long. So, it won't take much time.
DeleteWow! This is so informative.
ReplyDelete