Author | Lightnews

Andrew J. Steinmetz @ajsteinmetz.com · 1d

I'm glad my alma mater saw the light and said no. #UArizona #EduSky #AcademicSky

All but 2 Universities Decline a Trump Offer of Preferential Funding

www.nytimes.com

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Andrew J. Steinmetz @ajsteinmetz.com · 1d

Psst. #Physics peeps. If you irradiate lithium-6 with half MeV deuterium ions, you cause #Fusion of the nuclei into two alpha particles aka helium-4. #Science #NuclearPhysics.

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Reposted by Andrew J. Steinmetz

PoLiTiPeT @politipet.piaille.fr.ap.brid.gy · 4d

Scientists predominantly use X and LinkedIn for professional scientific networking, but with Bluesky and Mastodon in recent years hoping to break through as alternatives.

https://mikeyoungacademy.dk/communities-of-scientists-are-emerging-on-bluesky/

cc: @davidchavalarias

#helloquittex […]

Original post on piaille.fr

piaille.fr

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Andrew J. Steinmetz @ajsteinmetz.com · 8d

theprotomen.bandcamp.com/album/act-ii...

Act III: This City Made Us, by The Protomen

6 track album

theprotomen.bandcamp.com

Andrew J. Steinmetz @ajsteinmetz.com · 8d

More Act III posting. Today's juice is The Storm and Buried in the Red! Continue the new songs #Protomen! #Music #RockOpera #ConceptAlbum.

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Reposted by Andrew J. Steinmetz

Sarah McAnulty, Ph.D. @sarahmackattack.bsky.social · 12d

Happy world squid and cuttlefish day!!

Text your friend a squid fact. Watch a video of a cuttlefish doing something cute.
Doodle a squid and then show it to me.

The world is cruel but squid are good.

A giant Australian cuddle fish swims up from the Moy seafloor and looks at the camera. She is red with w shaped curious pupils

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Andrew J. Steinmetz @ajsteinmetz.com · 14d

Second week of new songs for the #Protomen final album Act III: This City Made Us. I've waited like 16 years for this! No Way Back is an absolute banger. #Music #RockOpera #Rock theprotomen.bandcamp.com/album/act-ii...

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Reposted by Andrew J. Steinmetz

CosmicRami 🏳️‍🌈🏳️‍⚧️ @cosmicrami.com · Sep 22

Do sub-millisecond pulsars exist?

“NO”

Is that’s a way to start a talk!

#Pulsars2025

A man giving a talk at a conference. In the front the screen has a big “NO” on it.

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Andrew J. Steinmetz @ajsteinmetz.com · Sep 22

This is my favorite #Jazz album and my first #Japanese #CD. Flying Beagle, 1987, is by Himiko Kikuchi. The dog's name is Boogie and is absolutely the reason I originally listened to this.

2024 CD reissue of 1987's Flying Beagle album by Himiko Kikuchi.

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Andrew J. Steinmetz @ajsteinmetz.com · Sep 20

Discussion for the UK: www.reddit.com/r/Physics/co...

From the Physics community on Reddit: Quarter of UK university physics departments at risk of closing, IoP survey finds

Explore this post and more from the Physics community

www.reddit.com

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Andrew J. Steinmetz @ajsteinmetz.com · Sep 20

Hmm. 🤔 Enrollment in bachelor's degrees in #Physics seems to have fallen off a cliff in German universities since the pandemic. Anybody know if this trend has reproduced itself in your country or in another STEM field? #EduSky #AcademicSky #Science 🧪⚛️

Source: www.dpg-physik.de/veroeffentli...

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Andrew J. Steinmetz @ajsteinmetz.com · Sep 17

TIL that popcorn is an ancient snack with evidence going back to 4,700 BC in Peru via radiocarbon dating. That's potentially older than the potter's wheel! #Science #Archeology #History 🧪

Source: doi.org/10.1073/pnas...

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Andrew J. Steinmetz @ajsteinmetz.com · Sep 16

Any the yellow lines represent rays of light (which appear as 45-degree angled lines in Penrose coordinates. As nothing can travel faster than light, this explains why nothing can escape a black hole. If you're inside, you can't move rightward steeper than 45-degrees!

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Andrew J. Steinmetz @ajsteinmetz.com · Sep 16

The black hole's event horizon is the red/orange line btw!

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Andrew J. Steinmetz @ajsteinmetz.com · Sep 16

Oppenheimer-Snyder collapse (Penrose coordinates) shows how #BlackHoles form with radius (x-axis) & time (y). The star's surface (white) becomes the "antihorizon" of the BH (upper half diamond) with a singularity (cyan). #Physics #Astronomy #Science 🧪🔭⚛️

More info: jila.colorado.edu/~ajsh/bh/col...

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Andrew J. Steinmetz @ajsteinmetz.com · Sep 13

Thank you! No, I don't think so.

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Andrew J. Steinmetz @ajsteinmetz.com · Aug 25

Excellent ambient from @quietdetails.bsky.social here:
quietdetails.bandcamp.com/album/monolo...

If I were to put it into words, it's wind chimes as you sat in a wooden rocking chair while reading a book on a chilly day.

Monologue, by Aiko Takahashi

7 track album

quietdetails.bandcamp.com

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Andrew J. Steinmetz @ajsteinmetz.com · Aug 18

I'm obsessed with #GUNSHIP right now.
gunshipmusic.bandcamp.com/album/tech-n...

Tech Noir Timelines, by GUNSHIP

4 track album

gunshipmusic.bandcamp.com

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Andrew J. Steinmetz @ajsteinmetz.com · Aug 14

@smartmanapps.dotnet.social.ap.brid.gy Definitely agree that textbooks >> most online sources. I still appreciate Wiki for what it is though and some articles are excellent. @archive.org is awesome. Another good archivist resource is @hathitrust.bsky.social. I've cited their scans of old journals.

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Andrew J. Steinmetz @ajsteinmetz.com · Aug 13

@dpiponi.mathstodon.xyz.ap.brid.gy I really should read this series, huh.

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Andrew J. Steinmetz @ajsteinmetz.com · Aug 13

@drdrowland.fediscience.org.ap.brid.gy

What specific channels? Off the top of my head, I got @3blue1brown.com's 3Blue1Brown, Minute Physics, Crash Course, PBS Spacetime, PBS Eons, Microcosmos. (I love #PBS)