Angle of friction and shear stress 

These are the best geotech tutorials on the internet. Well done.

Wow! No one explained φ in soil mechanics like this. Big thanks

Wow. This is so well explained! You actually took some time to explain coulomb friction and that led me to understand angle of friction and shear stress! Thank you SO MUCH!!

Merci ! super bien expliqué, vous m'avez enlevé une épine dans le pied ! thank you

So helpful, thank you! Studying for the PE and needed this refresher on the fundamentals.

Is it just me or is the fact that he's effortlessly writing in reverse really cool?

Much appreciated 🙏...it will be great if linked to the oil industry geomechanics

Very good tutorial.

You are the best.

Mind blowing teaching sir

thanks for the cram help

Super like for you videos

HE WROTE BACKWARD?