Arun Kannawadi

@astroarun.bsky.social

Physics Faculty @Duke working on cosmology & LSST/Rubin Science pipelines dev. Dog parent & Immigrant. Opinions are my own, and I mostly keep them to myself.

My preferred AI metaphor is actually Asbestos. - Seemingly magical properties - Developed and experimented with to make endless products - Poisoned countless communities in it's creation - Everything it was used for eventually becomes a toxic hazard to mitigate & it's in the fucking walls now

Greg Pak@gregpak.net · 5mo ago

Trying out a new metaphor: "A.i." = cocaine. Cocaine is inevitable! Cocaine can enhance your creativity! Cocaine can make us all faster and more efficient! If your kid doesn't learn how to use cocaine, they'll get left behind!

This could not be correct. Tidal force on the earth is directly proportional to the mass of the other object (Sun, moon) and inversely proportional to the cube of the distance between Earth and that object, not the cube of the radius of that object.

Marcus Chown@marcuschown.bsky.social · 6mo ago

The tides pulled by the Moon are 2.4 times bigger than those pulled by the Sun. From this, Newton deduced, correctly, that the Moon must be 2.4 times denser than the Sun. How amazing is that?

I was both relieved and sad when I submitted the final grades for my course on general relativity. This is a course I've been wanting to teach in a physics-first approach for almost 15 years now. I don't have teaching obligations so I don't know if I'll teach this course again (or when).

Awful news: CMB-S4 is cancelled. This experiment was massively exciting for the cosmology community. It would have told us about the state of the universe some 400,000 years after the big bang, at a level of precision we can now only dream about ⚛️🧪 www.science.org/content/arti...

U.S. abandons hunt for signal of cosmic inflation

Now-canceled CMB-S4 project would have searched the afterglow of the Big Bang for signs of cosmic exponential growth spurt

science.org

🔭 Friendly advice for astronomers in the US and Chile--if you are excited to access @vrubinobs.bsky.social Data Preview 1 on Monday, request your account *now*--it has to get approved by a human. For best results use your university single-sign on, if available. rsp.lsst.io/guides/getti...

Getting an account on the RSP

Before getting started: Understand whether you have Rubin data rights.- Rubin data rights are required in order to hold an account in the Rubin Science Platform., All scientists and students affili...

rsp.lsst.io

In response to the ever-increasing number of submissions to the Open Journal of Astrophysics, I'd like to invite more astrophysicistsonto our Editorial Board. We're looking for volunteers with expertise in any area of astrophysics! Please contact me or @ojastro.bsky.social astro.theoj.org

The Open Journal of Astrophysics

The Open Journal of Astrophysics is an arXiv overlay journal providing open access to peer-reviewed research in astrophysics and cosmology.

astro.theoj.org

If you're in the triangle region of North Carolina, join us at the Rubin First Watch party at Duke and talk to those of us who made it happen in-person.

NSF–DOE Rubin Observatory@rubinobservatory.org · last yr.

🚨 SAVE THE DATE: The world's First Look at images from NSF–DOE Rubin Observatory is coming June 23, 2025! 🔭🧪 Get ready for a preview of how Rubin will soon #CaptureTheCosmos in its decade-long survey 🌌 More details soon—stay up to date at rubinobservatory.org/news/rubin-first-look

Save-the-date graphic for the worldwide "First Look" at Rubin Observatory first revealed images. Text reads, "Save the date! June 23, 2025. NSF–DOE Rubin Observatory First Look"

Duke's destroying a globally recognized generational legacy. I know of 15 biology faculty and curators who trained at Duke and who used the herbarium, just in my 10 years there. Climate Commitment "for life"? A budget is a moral document and Duke has shown its cards. www.science.org/content/arti...

‘A tragic mistake’: Decision to close Duke University’s herbarium triggers furor

Century-old institution boasts many unique specimens and is considered a “poster child for modern curation”

science.org

sad news - Duke University decided to dump their herbarium, which has over 800,000 plant specimens, one of the largest among in America, and includes many type specimens of Lady Gaga ferns. What a shame. Please stop Duke admins for making this horrible mistake!!

What's a good alternative for "the universe is 'flat'"? I was speaking to a 6-year old about space who has picked that term from the Internet and thinks that the universe must be made of stacked sheets of paper. I had to tell him that the observable universe (he knew of that term) is a sphere.