hallettj

I did not realize nano implemented syntax highlighting!

I remember finding this Practical Engineering video on Roman concrete to be informative: https://youtu.be/qL0BB2PRY7k?si=5exDGyEK_LTfGNOy

Veritasium also has a chapter on ancient concrete in this video: https://youtu.be/rWVAzS5duAs?si=EJ8rPDTPHlq90kgW

My memory is fuzzy, but I think some of the details are:

• We know how to make Roman concrete, but it’s not necessarily the best choice, and it might be more expensive than is appropriate for a given project.
• Ancient structures don’t have rebar, so they don’t degrade due to rust causing expansion. But rebar is so useful that it’s often a worthwhile trade-off.

Definitely see the other comments here about survivorship bias, and higher demands on modern structures.

Yes, I met someone who was allergic to basically everything, and said she had good results with hookworms

Lots of articles on fusion deserve to be summarized because they have paragraph after paragraph explaining what fusion is, that it produces electricity, why electricity is useful, and the problem of climate change.

But this article gets straight to the point, and manages to limit the-protons-and-the-electrons talk to a single paragraph further down.