On 3/12/2017 11:24 PM, Weatherlawyer wrote:
How thick should concrete be at the bottom of a four hundred and sixty foot waterfall?

https://www.youtube.com/watch?v=_q0g43iI9kA


I gave up half way through. This has to be one of the worst technical
presentations I have ever seen. I'm sure the guy was on top of all the
facts, just a pity he didn't structure his explanation for the rest of us.