Send the following on WhatsApp
Continue to Chat11. Poppers, Pendulums and Pond-hopping https://the.physicsteachingpodcast.com/2019/01/10/11-poppers-pendulums-pond-hopping/
11. Poppers, Pendulums and Pond-hopping https://the.physicsteachingpodcast.com/2019/01/10/11-poppers-pendulums-pond-hopping/