https://padlet.com/danielrosskent1/9275bl8i3t3t What is the difference between the start of the P wave and the start of the S wave? en-us 2017-05-27 05:20:59 UTC 2023-04-05 15:11:11 UTC hello@padlet.com danielrosskent1 https://padlet.com/danielrosskent1/9275bl8i3t3t/wish/174066728 2017-05-27 05:23:00 UTC https://padlet.com/danielrosskent1/9275bl8i3t3t/wish/174066728