#Physics⚛️
LightNews LightNews
ichep2026.bsky.social
Poster deadline is today (16 Feb) for ICHEP 2026 - thanks to everyone submitting!
indico.cern.ch/event/152280...

What’s next: abstract review is underway → track review & consolidation → program updates.

Practical info: indico.cern.ch/event/152280...

See you in Natal 🌴⚛️

#ICHEP2026 #HEP #Physics
Close-up of traditional Rio Grande do Norte food served in rustic clay bowls, with a yellow sticker reading ‘Practical info: venue + travel + city tips’ and the ICHEP 2026 Indico link.
February 16, 2026 at 1:33 PM
cplberry.bsky.social
With one in four university Physics departments facing the risk of closure, and with unprecedented research cuts on the horizon, @royalastrosoc.bsky.social have created an open letter for Physics teachers to lend their support to the university Astronomy community

ras.ac.uk/news-and-pre...

🎢🧪⚛️🔭
Open letter on astronomy cuts from UK physics teachers
drupal-media[data-view-mode=half_page_width] { display: inline-block; width: 50%; } The Royal Astronomical Society is encouraging physics teachers in the UK to sign ...
ras.ac.uk
February 16, 2026 at 12:18 PM
physicsworld.bsky.social
Katie Perry from the Daphne Jackson Trust, which helps people to get back into reserach after a break, offers her career advice in Physics World's latest "Ask me anything" column.
🧪⚛️
physicsworld.com/a/ask-me-any...
Ask me anything: Katie Perry - ‘I’d tell my younger self to network like crazy' – Physics World
Katie Perry is chief executive of the Daphne Jackson Trust, which helps people who’ve had a career break
physicsworld.com
February 16, 2026 at 11:53 AM
univie-physik.bsky.social
⚛️ Breakthrough through the use of optical switches for certifying quantum states 💿

This decisive step forward in the development of robust quantum computers and quantum networks has been conducted in Philip Walther's lab.

Read the whole story 👉 a29.at/iD3zvl

#physics #quantum #vienna
New measurement method enables efficient real-time verification of quantum technologies
Breakthrough through the use of optical switches for certifying quantum states
a29.at
February 16, 2026 at 10:50 AM
bookswain.bsky.social
“Now conceive a finite being who knows the paths and velocities of all the molecules..”

Part of an 1867 letter from James Clerk Maxwell to Peter Guthrie Tait containing his thought experiment he thought disproved the Second Law of thermodynamics. The being was later called a demon.
A page filled with very sloppy were handwriting. There is also a little hand drawn diagram at the top that looks like a box partitioned in half vertically with the left cule labeled A and the right B.on Image via the Cavendish Laboratory. #histsci #physics ⚛️
February 16, 2026 at 5:21 AM
bhgross144.bsky.social
A.C. Gilbert, the American inventor who created the Erector Set & other educational toys, was born #OnThisDay in 1884.

Perhaps the most (in)famous of Gilbert's creations was the Atomic Energy Lab, which let kids perform over 150 exciting experiments w/radioactivity!

#histSTM #histsci #physics ⚛️🗃️📜
A. C. Gilbert, in 1944, poses with a Ferris wheel made from his most famous invention, the Erector set. (Yale Alumni Magazine) https://yalealumnimagazine.org/articles/2170-renaissance-man The Gilbert U-238 Atomic Energy Lab on display at the Deutsches Museum in Munich (Wikipedia)
February 15, 2026 at 9:13 PM
drnereide.bsky.social
The Qi Xiao team's new VUV laser precisely matches the thorium-229 transition.

This directly enables progress toward practical thorium-229 nuclear clocks.

Paper (Nature, Feb 2026)➡️ www.nature.com/articles/s41...

3/3

🧪 ⚛️ #physics #science
Continuous-wave narrow-linewidth vacuum ultraviolet laser source - Nature
A continuous-wave narrow-linewidth vacuum ultraviolet laser generated using four-wave mixing in cadmium vapour is shown to improve linewidth by five orders of magnitude compared with previous single-f...
www.nature.com
February 13, 2026 at 3:42 PM
drnereide.bsky.social
🧵
Are we at a breakthrough in VUV laser tech?

It seems so: nuclear clocks could be way more accurate than what we have now, leading to substantial advantages.

Read the following. 1/3

⚛️ 🧪 #physics #science #laser #technology #clock
physicsmagazine.bsky.social Physics Magazine @physicsmagazine.bsky.social · 5d
The nuclear transitions that underlie nuclear clocks are difficult to drive controllably using existing laser technology. Now researchers have tested a new intense single-frequency ultraviolet laser that can achieve such driving for thorium-229 nuclei.
A Laser Built for Nuclear Timekeeping
Researchers have designed and demonstrated an ultraviolet laser that removes a major bottleneck in the development of a nuclear clock.
physics.aps.org
February 13, 2026 at 3:42 PM
astronomy.activitypub.awakari.com.ap.brid.gy
🚀 Exciting Announcement! I’ve officially launched my new YouTube channel — Nova Nexus ⚛️ This channel is dedicated to: 🌌 Astronomy ⚛️ Physics 💣 Nuclear Science 🤖 Advanced Te...

Origin | Interest | Match
Astronomy
You can view and join @astronomy right away.
t.me
February 13, 2026 at 1:48 PM
badboyofscience.bsky.social
Particle physics has revealed previously unseen structures inside the Great Pyramid of Giza.

Here's how!

Link: youtube.com/shorts/BI4rJlWs62c

⚛️🧪
Particle Physics Unlocks the Secrets of the Pyramids
YouTube video by Bad Boy of Science
youtube.com
February 11, 2026 at 7:35 PM
physgal.bsky.social
In honor of the International Day of Women and Girls in Science, here's an interesting article about the experiences of early career women in physics. Though we have made some progress, there is still a lot of work to do to improve the culture/climate in physics. 👩‍🔬⚛️🎢 #IDWGS
Anecdotes and guidance notes: surviving and thriving as a woman in science
Anecdotes and guidance notes: surviving and thriving as a woman in science, Gaggio, B, Driscoll, E H, Robinson, F C J, Singleton, J, MacManus-Driscoll, J L
iopscience.iop.org
February 11, 2026 at 7:07 PM
atlasexperiment.bsky.social
This year, for the #InternationalDayofWomenandGirlsinScience, we’re celebrating the “sparks” that ignite careers in physics. ⚛️⁠ ⁠ We asked four ATLAS experiment researchers to share what first inspired them. The stories of these women show that the spark for physics can come from anywhere! 👇
February 11, 2026 at 12:34 PM
quantumunivie.bsky.social
⚛️👩‍🔬 Women* in Science Day 2026 at the Faculty of Physics!

🙌 Science is fascinating, impactful, multifaceted - and female, too!

Read more about the female scientists at #UniVie ⤵️

🔗 physik.univie.ac.at/en/news/wome...

#WomenInScience #IDWGS2026 #QuantumPhysics #WomenInPhysics #STEM
February 11, 2026 at 10:14 AM
badboyofscience.bsky.social
What do singing sensation Taylor Swift and high energy particle physics have in common?

It sounds like the start of a joke, but it's actually more than you might think!

Check it out!

Link: www.youtube.com/shorts/o3syR...

🧪⚛️
Taylor Swift: Particle Physicist
YouTube video by Bad Boy of Science
www.youtube.com
February 10, 2026 at 4:56 PM
ichep2026.bsky.social
Last hours: ICHEP 2026 talk abstracts due today (9 Feb) - 23:59 BRT.

Submit: indico.cern.ch/event/152280...

Posters still open until 16 Feb. ⚛️

#ICHEP2026 #ParticlePhysics #HEP #Physics
Dark navy graphic with a bright red rounded banner reading “TODAY 23:59 BRT” in bold white text. Below, large white headline: “Talk abstracts”. Under it, small light-gray text: “Posters until 16 Feb”. A thin line near the bottom separates a small footer: “ICHEP 2026 • indico.cern.ch/event/1522800/abstracts/”.
February 9, 2026 at 12:42 PM
physgal.bsky.social
Hi. Sorry I missed this. You have been added to the Physicists list. That means you can post to the Science feed using the test tube emoji and the Physics feed using ⚛️.
February 9, 2026 at 4:24 AM
mcnees.bsky.social
Happy birthday to what I consider to be the deepest puzzle in physics, a hole in our understanding big enough to drive a truck through. 🧪 ⚛️ 🔭
mcnees.bsky.social Robert McNees @mcnees.bsky.social · Feb 8
Happy birthday, Λ!

Einstein submitted "Cosmological Considerations in the General Theory of Relativity" to the Prussian Academy #OTD in 1917.

It marked the birth of relativistic cosmology and added a "cosmological constant" term to the field equations of general relativity. 🧪 ⚛️ 🔭
Cosmological Considerations in the General Theory of Relativity Cosmological Considerations in the General Theory of Relativity is well known that Poisson's equation V2£ = 4ttKp . . . . (1) in combination with the equations of motion of a material point is not as yet a perfect substitute for Newton's theory of action at a distance. There is still to be taken into account the condition that at spatial infinity the potential Q tends toward a fixed limiting value. There is an analogous state of things in the theory of gravitation in general relativity. Here, too, we must supplement the differential equations by limiting conditions at spatial infinity, if we really have to regard the universe as being of infinite spatial extent. [2] In my treatment of the planetary problem I chose these limiting conditions in the form of the following assumption: it is possible to select a system of reference so that at spatial infinity all the gravitational potentials guv become constant. [3] But it is by no means evident a priori that we may lay down the same limiting conditions when we wish to take larger portions of the physical universe into consideration. In the following pages the reflexions will be given which, up to the present, I have made on this fundamentally important question. However, the system of equations (14) allows a readily suggested extension which is compatible with the relativity postulate, and is perfectly analogous to the extension of Poisson's equation given by equation (2). For on the left-hand side of field equation (13) we may add the fundamental tensor ww, multiplied by a universal constant, - r, at present unknown, without destroying the general covariance. In place of field equation (13) we write Guy - 2gur = - K(Tur - ‡garT) . . (13a) This field equation, with ~ suffciently small, is in any case also compatible with the facts of experience derived from the solar system. It also satisfies laws of conservation of momentum and energy, because we arrive at (13a) in place of (13) by introducing into Hamilton's principle, instead of the scalar of Riemann's tensor, this scalar increased by a
February 8, 2026 at 7:33 PM
afreeparticle.com
Dwayne “Dirac” Johnson

📍National Institute of Physics (UP Diliman)

🧪⚛️🎢
Framed black and white picture of Dwayne “The Rock” Johnson in a turtleneck, jeans and a fanny pack, but with Paul Dirac’s face. In the top left, it reads: “Do you smell what Dirac is cooking?” in cursive. In the bottom right it reads: Dwayne “Dirac” Johnson 1933 two-time Nobel Rumble champion
February 8, 2026 at 5:34 PM
nanoscaleviews.bsky.social
🧪⚛️ My thoughts on why the suddenly popular idea of putting huge volumes of data centers into orbit makes no sense, at least to me, on physics grounds. nanoscale.blogspot.com/2026/02/data...
Data centers in space make no sense to me
There seems to be a huge push lately in the tech world for the idea of placing data centers in space .  This is not just coming from Musk vi...
nanoscale.blogspot.com
February 8, 2026 at 5:17 PM
drnereide.bsky.social
🧵1/19
Picture a 25-year-old Italian guy who, in 1926, changed #physics ⚛️forever—paving the way for computers, smartphones, & understanding #stars. 🔭

This is #EnricoFermi & his famous “statistics.”🧪

Let’s walk through the story from Florence to “fermions,” 100 yrs later.

➡️ arxiv.org/abs/2602.04484
Portrait of a young Enrico Fermi, from the personal collection of Emilio Segrè (Morgue 1960-33). Courtesy of Lawrence Berkeley National Laboratory / AIP Emilio Segrè Visual Archives. Non-commercial use.
February 8, 2026 at 4:16 PM
graeme.fawcett.social
"""
is this true in the system i defined
"""
--- math 📐

"""
is this true in the system i'm standing in
"""
--- physics ⚛️

"""
'the fuck am I going to get this built by lunch? oh I know!
"""
--- engineering 🧙‍♀️

===
February 8, 2026 at 6:11 AM
ifanghughes.bsky.social
In this week’s Fourier Optics course we shall be looking at spatial filtering – how a pair of lenses performs a Fourier analysis and subsequently Fourier synthesis in the 4f set up. The importance of the f to f set up with a single lens is emphasised.

🧪 #physics ⚛️ #optics 💡 #iTeachPhysics 🎢
An image with an aperture in the form of the letter K in the plane z=-2f. There is a lens in the plane z=-f. We see the Fourier transform in the plane z=0. (Fourier analysis). There is a lens in the plane z=f. An inverted image of K is seen in the plane z =2f (Fourier synthesis).
February 7, 2026 at 7:24 PM
astroroyalscot.bsky.social
Thanks to @iansample.bsky.social at the Guardian for covering the devastating funding cuts that are being proposed for UK (astro)physics, and the dire impact these would have on young researchers. Will UKRI/STFC reconsider? Will the UKGov step in?🤞👩‍🔬🧪⚛️🔭

www.theguardian.com/science/2026...
February 7, 2026 at 8:08 AM
declassifyuap.bsky.social
The fundamental field is objectively real, subjectively real, and agentic.

It is the basis of physics, and religion.

It is the generator and consumer of all information.

You are it. And so is everything else.

This is nondualism.

🕉️👁️⚛️
February 6, 2026 at 10:36 PM
duetosymmetry.com
Remembered a stupid physics meme I made years ago
en.wikipedia.org/wiki/Born_ap...
🧪⚛️🧮
A poster for the movie THE BOURNE IDENTITY, but with the text IDENTITY replaced with APPROXIMATION, and Matt Damon's (Jason Bourne's) face replaced with that of Max Born
February 6, 2026 at 9:57 PM