Kevin Drum and Aaron Carroll report on a new study of the effect of new grocery stores opening in “food deserts” in poor neighborhood. The study is paywalled, so I can’t speak to the whole thing, but both of them quote similar bits making the same point: no statistically significant effects on the BMI of… Continue reading Food Takes Time
Follow the Bouncing Ball
Last week, Rhett did a post on animating a bouncing ball in VPython. This was mostly making a point about the distinction between real simulation and animation, along the lines of yesterday’s post on social construction of videogame reality. But, of course, my immediate reaction was, “That’s not how a bouncing ball looks…” This is… Continue reading Follow the Bouncing Ball
The Social Construction of Gravity
One of the more annoying points of contention back in the days of the Sokal hoax and the “Science Wars” was an argument over social construction. This is, loosely speaking, the idea that our understanding of the world is not strictly rational and objective, but is heavily influenced by interactions with other people, and the… Continue reading The Social Construction of Gravity
Super Pip!
SteelyKid’s gotten a bunch of press here recently, so it’s time to give her brother his due. So here’s a cute picture of The Pip from this afternoon (as the “featured image”– if you read via RSS, you’ll have to click through). He’s wearing a “superhero cape” made from a fuzzy blanket, because SteelyKid was… Continue reading Super Pip!
SteelyKid and the Big Telescope
SteelyKid’s class at her after-school day care has been learning about space for the last month or two (the program is very flexible– the teachers ask the kids what they want to learn about, and then they spend however long on that topic the kids like), so we’ve been getting a lot of tidbits about… Continue reading SteelyKid and the Big Telescope
Work. Finish. Publish.
A couple of days ago, John Scalzi posted a writing advice open thread, asking people to share the best advice they’d gotten on the craft of writing. There’s a lot of good stuff in there, much of it fairly specific to fiction writing– stuff about plotting, the use of synonyms for “said,” how to keep… Continue reading Work. Finish. Publish.
Video Editing Software?
Both SteelyKid’s kindergarten and the snow-day day-care program that the kids go to were closed today, which kind of threw a wrench in things. But it’s also kind of fun, as I got to spend some time playing outside with SteelyKid on her play set in the snow. The “featured image” above is a cell-phone… Continue reading Video Editing Software?
Old Thesis Club: A Specific Effect of X-Rays on Bacteria, by Thomas J. Dietz, 1934
Back in the fall, I did a bunch of write-ups of old Master’s theses that we found when clearing some space in a storage room. I got away from this because I was busy working on the book, but I have a few more that I pulled out to look at, and since all the… Continue reading Old Thesis Club: A Specific Effect of X-Rays on Bacteria, by Thomas J. Dietz, 1934
Uncertain Dots: Episode 3
This week’s hangout with Rhett Allain, in which we talk about how we got into physics, how we find stuff to read, what we enjoyed on physics blogs this week, what we do and don’t like about Twitter, and the revenge of the Sith. The specific blog posts we mentioned: Frank Noschese’s analysis of gravity… Continue reading Uncertain Dots: Episode 3
The Evergreen Topic of Grade Inflation
There was a flurry of re-shares last week for this article about Yale shutting down a site that aggregated student course evaluations, which is fine as far as it goes, but repeats a stat that really bugs me: About 43 percent of college letter grades in 2011 were A’s, up from 31 percent in 1988… Continue reading The Evergreen Topic of Grade Inflation