Sunday, May 10, 2026

The Last Lecture

On the first of May, I gave what I imagine was my very last lecture in a chemistry course. This was not the last lecture of the movies, where a grizzled professor in a tweed jacket waxes philosophical about life within the ivory tower, students hanging on his every word. This was not the poignant last lecture of a computer scientist in khakis and a polo. It was just my usual last lecture of introductory chemistry: on nuclear chemistry, on rads and rems and banana equivalent dose and how nuclear reactors work. And about the pile in the squash court at University of Chicago. (“Was it ever used to play squash on again?” wondered a student.) And when I was done, I wished them a good summer.

It was how I wanted to end my teaching days, with a solid lecture, not a flashy performance, covering material that mattered. To finish as I had gone along all these years, with the needs of my students directing what and how I structured a course, a lecture, an assignment. With an eye out to what might matter for the world. 

It felt like a good landing, and one that I could not have managed without a generous portion of chemistry, given how my own neurochemical machinery was misbehaving. What was utterly impossible the previous time I had  taught this course — writing on the blackboard, scrawling comments on student papers — was once again possible. What was then merely difficult — constructing notes on the iPad, walking down the hall, gesturing at the board, projecting my voice — I can now do without thinking. I am grateful for the chance to retire on my own terms and not because Parkinson’s is pushing me out. I am grateful for the all the pieces and people that made this possible, from the meds to the 50 grams of metal on my Bic pen. PTs and OTs, neurologists and psychologists, spiritual directors and pastors, colleagues and friends and family. I absolutely could not have done this without all the help. 

There have been celebrations and notes and recorded greetings. Crash crashed my retirement party, appearing unannounced at the door last weekend from the other side of the Atlantic. His brother, Math Guy, said they had something to drop off. He wasn’t kidding. And I still have work to do, a couple of letters of recommendation left to write, grades to assign (finals are graded!). Saturday I will march in commencement and get the last word before I, and this last class of students, walk out of the tent and into whatever is next. 

Wednesday, April 29, 2026

Office hours

 

The hours left in my office are few. Today are my last scheduled office hours (which I generally don't hold in my office, but in the atrium space in my building). The last departmental meeting of my career was this morning. Friday is my last class lecture. 

I've written my (final) final exam.

I am noticing all the systems I have set in place to keep me organized, worn smooth over the years.  My teaching bag with its dongles and chalk and dry erase markers. There is a set of molecular models. Tissues for allergies. The vertical slots for each course (and research student) on the shelves by the door. The color coded plastic sleeves: green for general chemistry and blue for p-chem handouts. This morning I slid the last set of lecture notes (nuclear chemistry) into its sleeve, feeling organized and competent and in control. 

It feels odd coming to the moment where I have to dismantle these systems. Empty the cubbies of answer keys and roll sheets. Add the collection of plastic sleeves into the drawer at home that houses the ones I use to organize retreats (pink and yellow and white). Put the teaching bag on the shelf. Red pens. Will I need a red pen after next week?

The work of writing, at least for me these days, is organized in virtual folders, slipped in and out of Scrivener and Pages and Word. Only rarely printed out. Deadlines on the calendar (virtual, too). Will I miss the material culture of this life? Maybe. Probably.

Wednesday, April 22, 2026

Charting a moral course: Popes, presidents and politics

"Pope Leo should stick to his lane. President Trump has said it. Vice President Vance is so convinced of it that he tried to school the pontiff on just war theory. Pete Hegseth’s Pentagon staff called the papal nuncio on the carpet to make it clear. What is the Pope’s proper purview?"

Frankly, I don't recognize much of my Catholic faith in the pronouncements emanating from the White House. And sometimes I get annoyed enough to make a public stand. I suppose I could stand outside the White House with a bullhorn and read from the Catechism of the Catholic Church, or the documents of Vatican II, but instead I write. I am grateful for the Philadelphia Inquirer who has given me a space to do that.

"I hear this administration saying that our morals are supposed to be detached from our everyday lives. That our beliefs — or our unbeliefs — are an entirely private matter. If we aren’t making our choices based on our own well-formed consciences, whatever tradition has formed them, then are they our choices at all?

Faith and morals are precisely what inform my politics, what guide my thinking about economics and social policy and climate change...Are there any decisions I make where my faith doesn’t play a role? Sure. Do I want mango or lemon water ice at Rita’s? But for the rest of it, I want my moral compass to help me navigate these challenging times.

Conscience isn’t a lane; it is the map that lets us find our way through all the lanes. Pope Leo is reminding us to not leave it behind."

Know where you stand and stand there, said Daniel Berrigan SJ. I know where I stand and I will stand there as long as I can and as long as it is necessary. 

Read the whole thing at the Inquirer. And yes, I enjoyed some alliterative moments...


For the record, the proper choice is mango!

For non-Philadelphians: Rita's is a purveyor of frozen confections, particularly "water ice" (pronounced "wodder ice"). Water ice (also called Italian ice) is more crystalline than a sorbet or gelato, but not as crystalline as a snow cone. 


Tuesday, April 21, 2026

Hobbies

Woman with short grey hair wearing a black turtleneck holding a book and sitting in front of a computer screen showing a molecular structure, blackboard in the background
Five more lectures to go.  On solids and X-ray crystallography. A short tour through nuclear chemistry, aware that these 100 or so minutes might be all they get on the topic in their chemistry degree. Memories of my own undergraduate training surface, where we got to use the nuclear reactor to do neutron activation analysis of milk samples. Can I find a photo of the reactor to show them?

Chatting with a colleague in the hall about my plans to write: "It's good to have a hobby," he offers. I bristle a bit.  I'm not sure that I would classify my writing under "hobbies." Sketching is a hobby, knitting is a hobby, fly fishing is a hobby. (Which two of these do I do?) A hobby feels too casual a classification, bearing a frisson of frivolousness. Writing for me carries weight, sometimes serious weight. So is it a job? an avocation? a vocation?

What does the OED have to say? A hobby is "An activity or interest pursued regularly in one's leisure time for pleasure." Or an avocation:  "an activity or line of work for which one has special talent or affinity; one's calling." Vocation, it  tells me,  derives from a summoning.

Writing is (mostly) a pleasure for me. Some of it is done in my "off-hours" from my paid job. This blog is probably a hobby. Regardless of the box I might drop it into, my writing is an integral part of who I am. The words call, and I cannot help but pick them up and start dragging them into place.


Thursday, April 16, 2026

Qapla!

Qapla! Success! My latest column in Nature Chemistry came out last week. It opens and closes with Klingon — which may be a first for a publication in a scientific journal. 

Se'vIr lIngDI' tamlertej, tlhIngan Hol QaQ law' DIvI' Hol QaQ puS jatlh Michelle Francl. (More or less translates as "Should chemists publish in Klingon rather than English wonders Michelle Francl")

and 

TlhIngan Hol ghojlu'meH QaQ jajvam. (Today is a good day to learn Klingon.) 

Writing this piece I learned a bunch about synthetic languages beginning with Hildegard of Bingen's lingua ignota to Nobel prize winning chemist Wilhelm Ostwald's literal investment in Ido (an offshoot of Esperanto). He gave half of his prize monies to promote use of the language by scientists. Also  I was introduced to Volapük, which sounds like it could be Klingon, but is actually the name of another 19th century synthetic language.

The essay isn't about Klingon per se but rather tackles the issue of auxiliary languages and science. If English is the lingua franca of science, what is the cost to scientists who do not speak it as their mother tongue? Time? Visibility? Surely, but the ultimate cost is the work that doesn't get done as a result, or gets done more slowly. It costs us all.

So, a Gedanken experiment...would it level the playing field if we all had to publish in Klingon? Could you squeeze more science into a 15 minute talk if you did it in Klingon? Chaq!

Read the whole thing here.