Leo C. Stein
@duetosymmetry.com
Physics Prof @ U of MS. Sloan Fellow. Black holes, gravitational waves, general relativity & beyond. Formerly Caltech MIT Cornell. Need thin pizza + fruity coffee. He/him
🌐 https://duetosymmetry.com/
@duetosymmetry everywhere
🌐 https://duetosymmetry.com/
@duetosymmetry everywhere
I may have misjudged what is an appropriate size for a biscuit (banana for scale)
January 12, 2026 at 11:41 PM
I may have misjudged what is an appropriate size for a biscuit (banana for scale)
(Text of footnote in alt text)
!["The decay processes discussed in the present paper should not be confused with the oscillatory processes (νₑ↔ν_μ) discussed earlier by B. Pontecorvo, Zh, Eksp. Teor. Fiz. 53, 1717 (1967) [Sov. Phys. JETP 26, 984 (1968)]; V. Gribov and B. Pontecorvo, Phys. Lett. 28B, 493 (1969). The oscillatory processes typically lead to only a factor-of-2 reduction in the terrestrially detected flux of electron neutrinos when properly averaged over the spectrum of energies of solar neutrinos](https://cdn.bsky.app/img/feed_thumbnail/plain/did:plc:lnlqzanmsiuxrgyizs4smyvq/bafkreihi5yjowfclm4wni2tn4lmll2t4cjafvsnhfy4kyzygct2hvh7qjy@jpeg)
January 1, 2026 at 7:41 PM
(Text of footnote in alt text)
If you see this, post a random fact about yourself:
I discovered the Kerr separatrix polynomial
arxiv.org/abs/1912.07609
I discovered the Kerr separatrix polynomial
arxiv.org/abs/1912.07609
December 28, 2025 at 1:34 AM
If you see this, post a random fact about yourself:
I discovered the Kerr separatrix polynomial
arxiv.org/abs/1912.07609
I discovered the Kerr separatrix polynomial
arxiv.org/abs/1912.07609
Throwback to some silly xmas/Newtonmas drawings I made a few years ago (Isaac Newton was born on Dec 25 under the Julian calendar in use in England at the time of his birth)
December 26, 2025 at 6:04 PM
Throwback to some silly xmas/Newtonmas drawings I made a few years ago (Isaac Newton was born on Dec 25 under the Julian calendar in use in England at the time of his birth)
Heading to a collaboration meeting!
December 14, 2025 at 9:36 PM
Heading to a collaboration meeting!
No question: Misner, Thorne, and Wheeler
December 10, 2025 at 10:11 PM
No question: Misner, Thorne, and Wheeler
Scruffy at work on a Sunday (have to write two exams)
December 7, 2025 at 9:42 PM
Scruffy at work on a Sunday (have to write two exams)
December 2, 2025 at 8:57 PM
At least our local coffee shop gets to have a bit of fun about it!
November 30, 2025 at 6:31 PM
At least our local coffee shop gets to have a bit of fun about it!
Chris was the first astronaut off Soyuz MS-28 and onto the ISS, about 2 hours ago!
November 27, 2025 at 4:25 PM
Chris was the first astronaut off Soyuz MS-28 and onto the ISS, about 2 hours ago!
Another TikZ masterpiece I cooked up today 🧪⚛️🧮
November 7, 2025 at 4:12 AM
Another TikZ masterpiece I cooked up today 🧪⚛️🧮
It's also pretty trivial to make the #emacs bibtex-mode linkify eprints (it already linkifies DOIs) so all you have to do is click or hit enter to open the arXiv or journal paper
October 28, 2025 at 7:35 PM
It's also pretty trivial to make the #emacs bibtex-mode linkify eprints (it already linkifies DOIs) so all you have to do is click or hit enter to open the arXiv or journal paper
Neato! As a point of reference, this is the watch I sent out for repair and made me think about replacing:
October 27, 2025 at 8:08 PM
Neato! As a point of reference, this is the watch I sent out for repair and made me think about replacing:
I found the best way to enjoy this (audio on!)
September 23, 2025 at 3:49 AM
I found the best way to enjoy this (audio on!)
I didn't ask for AI in my search. This is really not convincing me!
September 22, 2025 at 6:29 PM
I didn't ask for AI in my search. This is really not convincing me!
I spent a long time figuring out how to get matplotlib to be able to add a little cartoon of a binary orbit onto a plot (so now you all have to see it):
⚛️🧪🔭
⚛️🧪🔭
September 12, 2025 at 10:18 PM
I spent a long time figuring out how to get matplotlib to be able to add a little cartoon of a binary orbit onto a plot (so now you all have to see it):
⚛️🧪🔭
⚛️🧪🔭
Right-wingers suddenly deciding to decry political violence
September 10, 2025 at 8:32 PM
Right-wingers suddenly deciding to decry political violence
I'm sad to report that Rainer (Rai) Weiss passed away yesterday at age 92. Rai developed the design for LIGO, he and Kip got it funded, trained countless researchers, and received the 2017 Nobel Prize. Rai always had time for students and treated us as equals. May his memory be a blessing
August 26, 2025 at 6:21 PM
I'm sad to report that Rainer (Rai) Weiss passed away yesterday at age 92. Rai developed the design for LIGO, he and Kip got it funded, trained countless researchers, and received the 2017 Nobel Prize. Rai always had time for students and treated us as equals. May his memory be a blessing
I'm happy to report that so far I've been to two hawker markets; and just had prawn laksa at Food Republic
August 13, 2025 at 12:41 PM
I'm happy to report that so far I've been to two hawker markets; and just had prawn laksa at Food Republic
The Mathematician as Shepherd, Bronze by Nina Douglas. Located at the IHES. Donated by Marilyn and Jim Simons in November 2014.
🧮🧪⚛️🔭
🧮🧪⚛️🔭
July 29, 2025 at 7:21 AM
The Mathematician as Shepherd, Bronze by Nina Douglas. Located at the IHES. Donated by Marilyn and Jim Simons in November 2014.
🧮🧪⚛️🔭
🧮🧪⚛️🔭