thank you very much for PhET, Carl Wieman and team
Thank you very much, Carl Wieman, for all the PhET materials designed and shared over the years. It has made a big difference to teaching and learning difficult-to-understand science concepts. Top of my list, often declared in my “if the internet goes on fire what will I save?” list, is the current electricity interactive widget. Priceless.
https://phet.colorado.edu/en/simulation/circuit-construction-kit-ac