Snells Law Calculation

[@Ace-is7ww]

man, this made so much more sense watching this video rather than trying to understand it from my ASNT Book. Thank you so much!!

[@lesterrosales6320]

Joe, I just wanted to say thanks for all of your videos, they are all very helpful and very easy to understand. You just made learning for me to be fun and easy! Cheers!

[@JClasenCowleyNDT]

I haven't posted anything else, but will be supplementing what is out there now over the course of the next month or so! Thanks for watching!

[@MrCrisaleg]

Thank you Mr. Joe Clasen...you're a legend mate! Cheers!

[@aidengorton5960]

Thankyou for this video it has helped me alot with my course perpetration

[@elliem1199]

You are an awesome instructor!

[@Hwzdmzk]

Joe, huge fan and am learning so much... I have a quick question... at the 5:00min mark, shouldn't you divide 110,000 by 147841 (numerator divided by denominator) resulting in .774, then inverse that equalling 48.07 for the longitudinal velocity... Same thing at the 6;32 min mark, 110,000 divided by 83562 resulting in 1.31, passing the critical... Maybe i've got my math mixed up, but I'm just trying to get a grasp on this... thanks for your and any other persons help!

[@josemartinbazan1490]

Sos un Genio loco!! thanks a lot. Really good video. Please, more examoles like this. Plexiglass with aluminum. Bye Bye

[@daniellepridgen911]

how can i contact you?

[@sheremetbyevo]

Mr Cowley, can you publish UT 1 lab 2 ?? Tnx

[@guy612006]

Joe how come you never told me you had an NDT channel?