Praseodymium - Periodic Table of Videos
196,254 Views
269 Questions Answered
Best of Web
Let’s Begin…
The team at periodicvideos has created a TED-Ed Lesson for every element of the periodic table. This one is about praseodymium, an element used to filter harmful light. Praseodymium has even helped slow light's speed down to a mere 300 meters per second!
Why is praseodymium used in welder's goggles?
Sign in to answer questionAbout TED-Ed Best of Web
TED-Ed Best of Web are exceptional, user-created lessons that are carefully selected by volunteer teachers and TED-Ed staff.
Meet The Creators
- Video created by Periodic Videos
- Lesson Plan created by Periodic Videos
