Everyday

Category archives for Everyday

I’m teaching relativity in a course with an astronomy prefix, which means I’m obliged to talk about stars and stuff. Yesterday’s lecture was about neutron stars, and how their existence was confirmed by the discovery of pulsars (with the story of Jocelyn Bell Burnell included). This requires some discussion of angular momentum to explain how…

Relativity and Baseball

It’s baseball playoff time, so sport shows are full of one of the great mysteries of the season, exemplified by this .gif (from SBNation): No, not “Raul Ibanez, really?” but “How can he make the ball go that far?” After all, even very good outfielders are lucky to reach home plate with a throw from…

Uncertain Dots 19

In which our hangout turns nineteen; we may need to look into a special guest for the 20th, or something. Or maybe save guest stars for the one after that, when it can drink. Anyway, Rhett and I chat about grading, lab reports, why Excel sucks, and an online experiment that we really ought to…

As noted last week, I went to SteelyKid’s day camp on Tuesday to talk about being a college professor. This was a little awkward, because I was scheduled to talk to kids ranging from not-quite-three to six-and-a-bit, and really, what do they care about the daily routine of physics faculty? So, I did a simple…

We got an email from the people running SteelyKid’s summer camp asking for volunteers to speak at a career day sort of event early next week. I said “Sure, I can do that, and talk about the glamorous life of a physics professor and book author.” They said “Great, you’ll be talking to several groups,…

Smashing Stuff and Making Ice Cream

A few weeks back, a Union alumnus who works at Troy Prep contacted the college to arrange a visit for a bunch of second-graders, and asked if faculty would be willing to arrange talks and demos for the kids. I said something like “Sure, we could probably make liquid nitrogen ice cream for them,” and…

I don’t have anything all that new to say about last night’s Cosmos reboot, and I’m leaving for scenic Madison, WI today to attend DAMOP, so I don’t have a great deal of time. Kate did mention something over dinner last night, though, that’s a good topic for a quick blog post. Kate’s a big…

“Earthing” Is a Bunch of Crap

A little while back, I was put in touch with a Wall Street Journal writer who was looking into a new-ish health fad called “earthing,” which involves people sleeping on special grounded mats and that sort of thing. The basis of this particular bit of quackery is the notion that spending time indoors, out of…

What a Circus

Last weekend, the circus came to town, and Grandma and Grandpa came up to help us take the kids. We took SteelyKid a couple of years ago, and figured The Pip was old enough to go this time, too. Having bought tickets a couple of years ago, I got sent a pre-sale offer link, and…

SteelyKid Demonstrates Relativity

Before going to the playground Saturday to investigate non-intertial frames, SteelyKid and I went over to campus to do some experiments in relativity. Galileian relativity, that is: What you see here is SteelyKid sitting on a rolling lab cart with a camera bolted to it. She throws a ball up in the air a couple…