What Grade Do You think You’re Getting?

We had an education talk yesterday afternoon, because today’s colloquium speaker, Ann Martin from Cornell, has strong interests in that and wanted to talk to people about it. A lot of the discussion had to do with teaching students to write, and getting them to accept feedback. Martin spoke very positively of a writing-intensive introductory… Continue reading What Grade Do You think You’re Getting?

Quantum Mechanics vs. Relativity: It Depends on What “Understand” Means

Sean Carroll and Brad DeLong have each recently asserted that relativity is easier to understand than quantum mechanics. Both quote Feynman saying that nobody understands quantum mechanics, but Sean gives more detail: “Hardness” is not a property that inheres in a theory itself; it’s a statement about the relationship between the theory and the human… Continue reading Quantum Mechanics vs. Relativity: It Depends on What “Understand” Means

Notes Toward “A Brief History of Timekeeping”: Kooks and Sticks

Barring a major disaster, I am scheduled to teach one of our Scholars Research Seminar classes next winter. I’ve been kicking the idea for this around for a while, with the semi-clever title “A Brief History of Timekeeping.” The idea is to talk about the different technologies people have used to mark the passage of… Continue reading Notes Toward “A Brief History of Timekeeping”: Kooks and Sticks

Talking Dogs Are Big in Italy

I haven’t been as relentless about flogging How to Teach Physics to Your Dog (now available in paperback!) as I was last year, because it gets kind of exhausting. I do have a vanity search set up on Google Reader that points me to the occasional review– this one, for example, so I still see… Continue reading Talking Dogs Are Big in Italy

Heavy Heavy Water

I make an effort to say nice things about pop-science books that I read, whether for book research or blog reviews. Every now and then, though, I hit a book that has enough problems that I have a hard time taking anything positive from it. I got David Bodanis’s E=mc2: A Biography of the World’s… Continue reading Heavy Heavy Water

It’s About Time by David Mermin

Subtitled “Understanding Einstein’s Relativity,” David Mermin’s It’s About Time is another book (like An Illustrated Guide to Relativity) that grew out of a non-majors course on physics that Mermin offers at Cornell. It’s also an almost-forty-years-later update of an earlier book he wrote on the same subject. And it’s been a really good resource for… Continue reading It’s About Time by David Mermin