College Student Invents Building Material

It looks like Micah has taken down his blog - at least I can't find it via any of the search terms I could see at 1:39 in the video. He has, however, gone on to found Pulse Motors, an electric bicycle start-up - more about that here, here, and here.

It's always interesting in camp and in class to expand (see, I'm funny) on the uses of the expandable foam. There's the standard Great Stuff foam, expanding foam insulation, and Nerf, but what else is there to the foams?

Now there's making a building material out of them...in Pittsburgh, anyway.

Quick question, though, what's with the density currents above the container at 0:02 and again 4:55? Does the stuff cure faster with a heat gun treatment? Gotta try that sometime...