Continuing my trend of belatedly writing short descriptions of papers my group has published, this one came out in May, describing a new approach we developed for measuring the viscosity of lipid membranes: “Measuring Lipid Membrane Viscosity Using Rotational and Translational Probe Diffusion,” Tristan T. Hormel, Sarah Q. Kurihara, M. Kathleen Brennan, Matthew C. Wozniak, … Continue reading Viscosity in two dimensions
Like last year, several of us from the Physics Department manned a booth at the Oregon Country Fair, the long-running hippie / arts / music / performance / counterculture festival that occurs each year outside Eugene. I worked there today, which was lots of fun. Though our booth was mostly about energy — lots of … Continue reading “You should do birthday parties!” — Year 2 at the Oregon Country Fair
This week’s Economist has a fascinating map of the number of UFO sightings per capita, by state: When I saw this last Friday, it raised a few questions: What’s up with Washington? How well do UFO reports correlate with population density? (Do aliens have a fondness for sparsely settled, wide-open spaces?) Could I use any … Continue reading Sasquatch is an alien! (A proof in three graphs)
Appallingly, the University of California system has just prohibited its employees from using AirBnB (and other peer-to-peer services) for business-related travel [link: Inside Higher Ed]. I’ve become a big fan of AirBnB [wikipedia]. For those unaware of it, it links people with rooms or apartments or houses to briefly rent out with people looking for … Continue reading UC vs. AirBnB
As mentioned a few weeks ago, a highlight of teaching this term was bringing in an elephant femur and a dog femur, to highlight the lack of simple proportionality between them. (The elephant’s femur is about 10 times as long as the dog’s, and 20 times wider.) Coincidentally, just a few days after this, researchers … Continue reading Next year, I’ll need a bigger cart
I spent the past week at a fascinating conference on teaching at the interface of physics and biology: a mix of biophysics research talks, education talks, and combinations of the two. I presented a poster on my ‘biophysics for non-science majors’ course, which went over well. Perhaps its biggest impact was superficial, though: everyone (including … Continue reading A soft, silky, scientific poster
In general, there’s little or no correlation between the length of a eukaryotic organism’s genome and any other “obvious” characteristics, such as the creature’s overall size. Humans have a genome of about 3.4 billion base pairs; those of mice and giraffes are a bit smaller (2.7 billion base pairs), for example, and orangutans’ and guinea … Continue reading The creation of the birds
Several sources have pointed me to this neat web site of spurious correlations, showing graphically how, for example, the age of Miss America correlates with the number of murders by steam, hot vapours and hot objects, or my favorite: Though spurious correlations can be dangerous (and hilarious), it’s often useful to look for correlations in … Continue reading Reading this post? You get an “A”!
My older son’s school (Willagillespie Elementary) had its annual “Math and Science Night” tonight, which is consistently great. This year, I was asked if I would do something for it, and I decided to present some demonstrations and activities about surface tension. Here’s something that I didn’t show, but that I did for my Physics … Continue reading Water magic
On some days, being a physics professor is a real slog — many-hour meetings, struggles with grant funding, endless emails, and near-futile attempts to eke out time for actually thinking about science. But there are other days in which it’s really awesome. Today, for example, I got to cart around an elephant femur. Here it … Continue reading Then we played bones, and I’m yelling domino
The Eighteenth Elephant 