My Neighbor, Me, and a Grand Principle

The other week I was trudging through laps around the court I live on, and a neighbor yelled across the court, first “HI” and I yelled “HI” right back and then he yelled, “THIS IS THE BEST DAY OF THE YEAR!” So I asked why it was the best day of the year, and trudged […]

Tale of the Tape

Yesterday Francis Halzen received the 2026 Nobel Prize in Physics for overseeing the experiment that detected an extraordinarily elusive subatomic particle via an ingenious reinterpretation of the concept of “telescope.” A version of this essay about that experiment originally appeared here on November 26, 2013, following the announcement of that discovery. The news this past […]

Redux: Of Heisenbergs and Beethovens

The writer Tom Stoppard died on November 29. We’re re-posting this essay (which originally appeared on June 10, 2011) in his honor. The references to dates (e.g., “A few months ago”) remain as in the original post. The 16-year-old student has an idea, but she doesn’t have the maths to support it. She does, however, […]

Baltimore in August

This first ran on August 17, 2022. Three years later, August 20, 2025, same. Except this year we also have infrastructure, (it’s like measles: you get it, you suffer, it goes away) which we have often enough that I know code for the street markings: gas is yellow, electric is red, sewer is green, water […]

Discovering What’s Possible at CERN

Earlier this month, I had the pleasure of visiting CERN (Conseil Européen pour la Recherche Nucléaire) with a group of STEM-curious high school kids. Our guide on the visit was Shirajum Monira, a tiny, dark-haired woman, who spoke gently as she walked us through numerous exhibits, experimental facilities and scientific devices. She spoke patiently and […]

Garwin Died

Richard L. Garwin died this week on Tuesday, May 13, 2025. He was born April 19, 1928, you can do the math. He lived a long time but I still don’t see how he did everything he did. I interviewed him a lot over the years, and stayed in touch even after his health made […]