Stratigraphy, black bean soup, and hawks.

Stratigraphy, black bean soup, and hawks.

Drawing on my hundreds of hours of undergrad student labor analyzing soil samples using the Bouyoucos method (here’s a study in good science and bad graphics on that topic,) I put our experimental color-coded plastic media into a 2.25 inch cylinder and inverted...

Little plastic particles, big rivers.

Little plastic particles, big rivers.

The plastic media we use for the Emriver model comes from post-industrial recyclers. It’s used as an abrasive to do things like take paint off airplanes. Getting it in certain colors, or color-coded by size, was a joke to them. Like asking for only the Budweiser...

Emriver boxes and skilled builders arrive.

Emriver boxes and skilled builders arrive.

Warren and the talented welder Nick brought us a truckload of Emriver boxes today. These guys don’t need publicity, so I’m omitting web-searchable names. Here you see Cara, Jesse, Nick, and Warren. Warren has a big, amazing metals shop in St. Louis that...

Hot grad students in ergonomic Em4 hot tubs.  Not.

Hot grad students in ergonomic Em4 hot tubs. Not.

The building was filled with smoke as I arrived this morning. Jesse was fixing our Goodwill 1970’s office chairs with his wire welder. Without gloves, I see. We worked on em4 ergonomics, here with a 1:5 model. Probably a reservoir low and big enough to...

Engineering, flu, and a shrine.

Engineering, flu, and a shrine.

Cara’s got the awful flu bug, her poor husband and child have it bad, and Kate’s still kind of got it. We’re in bad shape with this virus. And the ice and unending gray skies don’t help. Kate and I built this shrine on our mantle in hopes of...