Notes on being a queer, immigrant, nobinary physicist-turned-writer, vegan baker living and working in New York.
| Platform |  | Pricing | Only free issues | Publishes | Weekly |
|---|---|---|---|---|---|
| Issues | 174 | Founded | 7 years ago | Last Issue | 6 days ago |
| Active | |||||
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ultracold.substack.comLatest Issues
Wonder, Awe, and Significance
Thanks for reading my newsletter! All opinions expressed here are strictly my own. Find me on TikTok, Instagram and Bluesky. Ultracold publishes every Monday and my debut book Entangled States: A Life According to Quantum Physics will be pu...
Media/Diet (May '26)
Thanks for reading my newsletter! All opinions expressed here are strictly my own. This is a monthly feature with thoughts on media, food and art that I have consumed recently. Ultracold publishes every Monday and you can now pre-order my d...
Speak It Out Loud
Thanks for reading my newsletter! All opinions expressed here are strictly my own. Find me on TikTok, Instagram and Bluesky. Ultracold publishes every Monday and you can now pre-order my debut book, Entangled States: A Life According to Qua...
The Participatory Universe
Thanks for reading my newsletter! All opinions expressed here are strictly my own. Find me on TikTok, Instagram and Bluesky. Ultracold publishes every Monday, with monthly Big Essays and Media/Diet features interspersed with shorter writing...
Poetry is an Advanced Technology
Thanks for reading my newsletter! All opinions expressed here are strictly my own. Find me on TikTok, Instagram and Bluesky. Ultracold publishes every Monday and you can now pre-order my debut book, Entangled States: A Life According to Qua...
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Authors
The writers behind this newsletter.
Writer. Journalist. Non-practicing theoretical physicist. Ex-teacher. Cake baker. Croatian in Queens. Queer. Vegan.
Bennett Callaghan is a Tests and Measurement Specialist for the City of New York. He received his PhD in Social Psychology and was a post-doctoral fellow at the City University of New York’s Stone Center on Sociology-Economic Inequality.
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