One of the reasons I went into Physics is the absoluteness of its claims: every proton has an electric charge; every bit of mass generates a gravitational field; and so on. One of the dizzying yet fascinating things about biology is, often, its lack of universality — nearly every statement one can make has some … Continue reading Giant germs, making a mockery of physics
Occasionally, things go exactly as I’d hoped. We’re discussing scaling in my Physics of Life class, starting with things like the scaling of volume and area with size. I mentioned in passing that this issue comes up in advertising, and since students seemed interested, I brought the following to the next class — an interactive … Continue reading How to lie with scaling
I was thrilled yesterday morning to learn that super-resolution microscopy is the subject of a Nobel Prize this year. (Or more accurately, that Eric Betzig, Stefan Hell, and William E. Moerner were awarded the Nobel Prize “for the development of super-resolved fluorescence microscopy.”) Super-resolution microscopy is wonderful, as I’ve written before. In all its various … Continue reading The 2014 Nobel Prizes: Switched at Birth?
For a while I’ve thought I should write up a paper on my biophysics-for-non-science-majors course, just to document what its motivations are and how I’ve approached teaching it, in case it helps spur others to create similar courses. I’ve finally done this; a pre-print is on arXiv here: http://arxiv.org/abs/1410.0666 (“The Physics of Life,” an undergraduate … Continue reading Preprint: “The Physics of Life”
A friend of mine posts on his blog “lay summaries” of papers he writes, which I’ve always thought is a good use for a blog, though I’ve never gotten around to doing it. One of my graduate students will defend his Ph.D. in a few days, and so this seems like a good opportunity to … Continue reading Dancing Membranes
I’ll conclude a three-part series of posts on useful or interesting readings in biophysics with the shortest list: popular science books. I’ve often thought it unfortunate that there aren’t more books for the general public on biophysics. The physics underlying the squeezing of DNA into viruses, the crawling through tissues of patrolling immune cells, the … Continue reading Readings in Biophysics, part III (Popular Science)
Earlier this Fall, I was part of the University’s “DUKTalks” event — rather like TED talks but (i) featuring speakers from UO, and (ii) without the vast audience. It was a fun and interesting program, with fifteen minute talks on medieval runes, Facebook, and more. My talk, “The Physics of Life,” was about (unsurprisingly) biophysics. … Continue reading DUKTalks + Fish Guts
I’ll continue writing on useful or interesting readings in biophysics — Part I, a few weeks ago, dealt with textbooks. There are many technical or scientific books that either aren’t actually about biophysics, or that are about a narrow aspect of biophysics, that are nonetheless particularly useful or stimulating. Here are some that come to … Continue reading Readings in Biophysics, part II (Readings not in Biophysics)
I’m asked fairly often to suggest things to read on the topic of biophysics, for people new to the field or just curious about it. Two weeks ago, for example, I gave an informal talk — more like a discussion & conversation — for the local Society of Physics Students (undergraduate physics majors). It was … Continue reading Readings in Biophysics, part I
Biophysicists are, I think, expected to have broad-ranging interests and skills. When I was interviewing for faculty positions, for example, I was asked in all seriousness, “When I cook a chicken in a pot and it makes a squishy sort of jelly, what is that?” Despite being vegetarian and never having experienced chickens-in-pots, I babbled … Continue reading On the injection of thawed meat through garden hoses
The Eighteenth Elephant 