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...

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...

Carbondale locked in ice, more consulting work.

Carbondale locked in ice, more consulting work.

I sent off our ad for the back cover of the Journal of Geoscience Education today. We had perhaps a record number of Emriver inquiries today–our second ad in the J. of Soil and Water Conservation is out. But some of these came from a mailing we sent in November....

River model design.  Research and design!

River model design. Research and design!

We’re designing a larger river model, now code-named the em4, and are testing pumps. Pumping and filtration are big challenges–the plastic media we use is an industrial abrasive. Great for modeling, hell on pumps. Pumps are complex devices with...

Big scale today, more climate.

Big scale today, more climate.

We did a silly thing today: We’d like to be able to have plastic media for the Emriver and future models that coded by size, i.e. each size class would be a different color. This seems to be outside the current plastic media technology. This stuff is produced...