The Brazil Nut Effect

The Brazil Nut Effect

Editor’s Note: This post on the Brazil Nut Effect was written by Steve Grimmer, Little River’s Artist Mechanic. In our planning meeting last week, I had to be reminded by my colleagues that the Brazil Nut Effect is a phenomenon wherein larger particles will tend to...

Martian water in Carbondale, Illinois.

Martian water in Carbondale, Illinois.

McEwen et al.’s Science paper on Martian water yesterday is exciting stuff! Especially for us, because our models can simulate fluvial geomorphology on Mars.  The plastic media we use is particularly good at forming sapping channels, which are groundwater-driven...

A landmark paper in physical modeling.

A landmark paper in physical modeling.

A groundbreaking physical modeling study was published this week in PNAS (subscription required). NSF has a press release here. Christian Braudrick and others at EPS-Berkeley used a 17m flume filled with a mix of lithic and plastic particles to achieve what they call...

Approaching the elegance of an insect.

Approaching the elegance of an insect.

The NY Times published an article on insect aerodynamics last week (and also a beautiful photo series featuring recent science photos). I’ve been immersed in micro-hydraulics for a few weeks now. Our Emriver models work in this realm of centimeter-deep flows and...

Thermoplastic sedimentology.

Thermoplastic sedimentology.

I’m pretty sure our work with plastic media will never end. I’ll be 90 years old and still messing with the vagaries of color, cost, shape, density, and size. Though we’ve talked to a lot of sedimentologists, it just now occurred to me that...