The JCC, where SteelyKid goes to preschool, is closed for Rosh Hashanah, so she’s off at Grandma and Grandpa’s for the weekend. They start doing a little more religious instruction at the preschool level, so we got to hear about Jewish theology, SteelyKid style: It’s the birthday of the world, so I’m going to Grandma… Continue reading Thursday Shana Tova Blogging 092911
Month: September 2011
Faster Than a Speeding Photon: “Measurement of the neutrino velocity with the OPERA detector in the CNGS beam”
There have been a lot of pixels spilled over this faster-than-light neutrino business, so it might not seem like something I should take time away from pressing work to write up. It is the story of the moment, though, and too much of the commentary I’ve seen has been of the form “I am a… Continue reading Faster Than a Speeding Photon: “Measurement of the neutrino velocity with the OPERA detector in the CNGS beam”
Neutrino Hypotheses Non Fingo
The final sentence of the neutrino paper that everybody is buzzing about: We deliberately do not attempt any theoretical or phenomenological interpretation of the results. From a somewhat older work in physics: Rationem vero harum gravitatis proprietatum ex phænomenis nondum potui deducere, et hypotheses non fingo. Quicquid enim ex phænomenis non deducitur, hypothesis vocanda est;… Continue reading Neutrino Hypotheses Non Fingo
How to Teach Relativity to Your Dog: The Cover
I’m looking at an email from my editor when Emmy wanders by the computer, sniffing around just in case a crumb of food has fallen on the floor in the last five minutes. “Hey,” I say, “Come here and look at this.” “Look at what?” “This:” “It’s the cover for my new book.” “A-hem.” “OK,… Continue reading How to Teach Relativity to Your Dog: The Cover
Greenhouse Physics and Car Shades
I got a new comment on an old post asking an interesting question about thermodynamics: I have a question that bears somewhat on this issue of keeping cars parked in the sun, cooler. You all know those accordion folded/aluminized shades you can put up inside the windshield and back window. Seems to me putting them… Continue reading Greenhouse Physics and Car Shades
Active Learning Experiment: The First 1.6 Weeks
As mentioned a while back, I’m experimenting with “active learning” techniques in my intro courses this term. Specifically, I’m doing a variant of the “Peer Instruction” method developed by Eric Mazur and others. There are a few complications imposed by our calendar/ class schedule, but I’m giving it a shot, and I thought I’d report… Continue reading Active Learning Experiment: The First 1.6 Weeks
Cute Toddler Story
Those of you who follow me on Twitter/ Facebook have been getting the occasional snippet of cute dialogue from SteelyKid over there. This one’s a little too long for breaking into 140-character blocks, so while I wait for her to come downstairs so we can make pancakes, a cute SteelyKid story: We play a surprising… Continue reading Cute Toddler Story
Thursday Sand Picture Blogging 091511
The current quasi-hiatus has the goal of preserving my sanity through reducing stress. Somewhat surprisingly, Thursday Toddler Blogging has actually been fairly stressful lately, because SteelyKid is mostly in a “no pictures” phase, which makes getting a usable shot of her a huge hassle. Which is why there was no toddler blogging photo last week.… Continue reading Thursday Sand Picture Blogging 091511
Statistical Significance Is an Arbitrary Convention
In typical fashion, no sooner do I declare a quasi-hiatus than somebody writes an article that I want to say something about. For weeks, coming up with blog posts was like pulling teeth, but now I’m not trying to do it, it’s easy… anyway, that’s why there’s the “quasi-” in “quasi-hiatus,” and having been reasonably… Continue reading Statistical Significance Is an Arbitrary Convention