Why do buildings have foundations?
The Underground Crew
Why do buildings have foundations?
You've probably walked past a thousand buildings and never once thought about what's happening underground. But right now, beneath your feet, something important is going on. Every building you've ever been inside — your school, the grocery store, skyscrapers downtown — is secretly holding on tight to something you can't see.
Here's the thing: buildings are heavy. Really, really heavy. A small house weighs about as much as fifty elephants. A ten-story apartment building? More like a thousand elephants, all standing in one spot. And the ground beneath them isn't solid like a tabletop — it's more like a very thick brownie. It can hold weight, but if you push down too hard in one spot, things start to sink.
