[alt text from NASA] Earth sets at 6:41 p.m. EDT, April 6, 2026, over the Moon’s curved limb in this photo captured by the Artemis II crew during their journey around the far side of the Moon. Orientale basin is perched on the edge of the visible lunar surface. Hertzsprung Basin appears as two subtle concentric rings, which are interrupted by Vavilov, a younger crater superimposed over the older structure. The lines of indentations are secondary crater chains formed by ejecta from the massive impact that created Orientale. The dark portion of Earth is experiencing nighttime. On Earth’s day side, swirling clouds are visible over the Australia and Oceania region.

Because the Moon is tidally locked to the Earth, if you build your habitat on some plot of near-side regolith you can put the little Earth anywhere in the sky you want & it’ll stay there, lazily meandering around just a little as the Moon wobbles in its orbit.

A view of Earthset from #Artemis II.

Artemis launch watch party!

Well, I've appealed the rejection, so I'll see what happens. But perhaps I should reach out. I've had multiple submissions just sit on hold for weeks until we email them to ask what's going on. I don't think physics.optics is quite in the same situation as some other sections as arxiv but who knows

Can I just post a pdf on my website and be done with it?

ArXiv lately has been putting everything I submit on hold, and has rejected manuscripts that are clearly part of their purview/ the physics.optics category (ie: there's stuff on there from a month ago on the exact topic!) Really not sure what's going on.. having to appeal is tiresome

I am excited to share our latest paper, Uniform bacterial genetic diversity along the gut, now out in Nature Communications! www.nature.com/articles/s41.... (1/n)

Magneto-optic perturbation theory for near-complete violation of Kirchhoff's law of thermal emission at low magnetic fields Magneto-optic photonic systems can violate Kirchhoff's law of thermal emission by breaking Lorentz reciprocity. We develop a dispersive perturbation theory yielding an analytical expression for magnet...

Time to do some theory again.. new preprint that we think will be pretty useful for understanding and designing nonreciprocal photonic systems for thermal emission arxiv.org/abs/2603.23538

What usually happens for me is something similar: I read over its output, get annoyed by the way something was written or overstated, and in annoyance I start writing it the way I (it turns out always did) want to write it.

Project Hail Mary was great! Stuck to the spirit and overall plot of the book, though obviously less of the science exposition. First time I've gone to a movie on opening weekend in a very long time..

There’s parliamentary which is similar to the US parliamentary and the standard Canadian format with cross examination etc. it doesn’t so the whole speed reading thing (which I found baffling when I came here for college!)

So, uh, should we be running our proposals through Grok or something?

Enjoyed Preskill’s keynote at APS

*came in second

our team in second at the provincial debate tournament in.. 2001 or 2002? My one and only visit to Medicine Hat, AB. i literally carried an inkjet printer with me to last minute print out our speeches haha

Being able to respond in real time to criticisms i personally enjoyed! But I grew up doing science fairs and debate tournaments so this felt like a throwback to those formative school years experiences. Also sort of like pitching VCs

I will say that having recently done a site visit with full day grilling by experts in the topics of what we were proposing - it’s much more satisfying (and more work!) than reading sometimes generic reviews. However is very time intensive and can’t be replicated widely..

If you're at the @apsphysics.bsky.social Global Physics Summit, I'll be speaking at the FIAP prize session this afternoon at 4pm along with some other cool applied physics talks!

Uhh..

I like how everyone has suddenly become a radiative cooling expert online :) everyone seems to forget that in most geometries the radiators also face the sun. There’s also that whole issue of “high flux“ events *cough*

My phone pulled up a photo of my now two year old from a year ago, and then I saw this.. there has to be a better way to do this!

IIRC we had an on campus case in 2019 that they emailed about, including presence in a large class lecture. Presumably due to high vaccine coverage there was no onward spread (and hopefully the same for you all too!). But I had a newborn then was was rather freaked out..

And don't extol the virtues of another university and department in your cover letter..

pretty good - I did take the physics GRE in Dorchester 20 years ago..

i guess I’ve pronounced Billerica wrong..

I think cryptocyanine should emit in that range and I recall seeing it used in ethanol or methanol

One wonders what Joey Smallwood would say about all of this..

1948 Newfoundland referendums - Wikipedia

I'm.. randomly.. remembering the Newfoundland referendums of 1948: "President Harry S. Truman's administration had little incentive to pursue annexation. With respect to foreign policy, such a territorial ambition would have only served to antagonize two key allies." en.wikipedia.org/wiki/1948_Ne...

Protects the integrity of NoseID

Even stranger, our gmail accounts will hit a quarter century in a few years..