If you had asked me as a kid, "So, what do you think adult you will…

If you had asked me as a kid, "So, what do you think adult you will do for fun?" I would not have said "Watching instructional videos on how to make concrete".

Tyler Ley is a professor of structural and material engineering at the University of Oklahoma. His videos on concrete and cement are fantastic. For example, in this video he explains the advantages and disadvantages of fiberglass/basalt rebar vs steel rebar:



Many more videos here:

https://www.youtube.com/channel/UCrvfiHNDS_QI-FgKQSmTITQ