Chi-kwan (CK) Chan
@rndsrc
Computational Astrophysicist | Tinker | Hiker | Photographer | Dad
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Returned from OpenAI. Lots of interesting ideas shared on the future of AI in education and scientific discovery.
After our local EHT meeting last week, we stopped by the Arizona Radio Observatory labs. Fascinating to see the cutting-edge instruments up close!
First Images from the NSF-DOE Vera C. Rubin Observatory: youtube.com/live/dF1g-Ru8m… P.S. The 8.4-meter mirror was fabricated at the Richard F. Caris Mirror Lab at UA rubinobservatory.org/explore/how-ru… ;-)
Did you know that black holes are spinning?🌀🔎 To find out just how fast, EHT researchers used AI to connect simulated data to actual EHT measurements of M87 and SgrA*. They found that the black hole in SgrA* spins almost as fast as physically possible! aanda.org/articles/aa/fu…
#A #NeuralNetwork trained on millions of synthetic data sets indicates the Milky Way’s central black hole spins near its maximum rate, with its axis oriented toward Earth. @AandA_journal doi.org/g9pbh9 phys.org/news/2025-06-n…
In python, for i in range(-3,2): print(f'hash({i:2}) == {hash(i):2}') hash(-3) == -3 hash(-2) == -2 hash(-1) == -2 🤯 hash( 0) == 0 hash( 1) == 1 And this is not a bug: github.com/python/cpython…
The very timely Veritasium video was filmed at UA campus: youtu.be/zB_OApdxcno
youtube.com
YouTube
On These Math Problems, Smarter People Do Worse
It was great to return to the department where I earned my degree and present! I enjoyed sharing my thoughts on the connections between physics and AI with the community that helped shape my academic path. BTW, It takes only a few lines of python to implement a Hopfield network.
⛈️The U of A camera facing the Catalina Mountains showcases the wet microburst that formed over the Foothills very well. You can see the storm form up and come down very quickly as this time lapse shows the last 90 minutes. #azwx
I recently had the chance to speak at the #OpenAIForum about "Scientific Discovery with AI". It was an awesome experience sharing our work on AI and astronomy at the @uarizona and @StewardAstro.
Join us at virtual OpenAI Forum event - Hybrid Event: Scientific Discovery with AI: Unlocking the Secrets of the Universe - July 17, 2024 5:30 PM PDT forum.openai.com/public/events/… #OpenAIForum
Timelapse of the northern lights seen just outside Tucson, Arizona last night! What a magical night! #tucson #aurora #northernlights #arizonaurora #aurora #timelapse
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