The Ground Beneath Everything by Brooks

The Ground Beneath Everything by Brooks - October 2026 Scholarship Essay

In my geotechnical engineering lab, we ran a direct shear test on a sand sample — basically, you pack soil into a little box, apply a normal load, and push the top half sideways until it fails. Simple setup, and the question it answers is anything but: how strong is the ground under everything we build? What hooked me was the failure envelope. You test the same soil at three different normal loads, plot shear stress against normal stress, and the points fall on a straight line. The slope of that line is the friction angle — one number that tells you whether a slope stands or slides, whether a retaining wall holds or topples. Three little boxes of sand, and out comes a parameter that decides real designs. It sparked my curiosity because it made the math I'd been doing in lecture feel physical. Mohr's circle wasn't just a diagram anymore — it was describing something I could watch happen with my own hands. That's when geotech clicked for me: the ground isn't just dirt, it's a material with rules, and learning the rules is the whole game. Now, as a TA for a different course, I try to give my students the same moment — the point where the abstract turns concrete. Once you've seen it, you can't unsee it.