https://padlet.com/roger_acres/p4yfgsi8zjtw Click on each presentation in numerical sequence. en-us 2018-08-05 16:46:50 UTC 2025-04-11 14:56:44 UTC hello@padlet.com roger_acres https://padlet.com/roger_acres/p4yfgsi8zjtw/wish/271993885 2018-08-05 16:48:20 UTC https://padlet.com/roger_acres/p4yfgsi8zjtw/wish/271993885