Josh Halpern trading as's Avatar

Josh Halpern trading as

@elirabett

Chemical physics, climate change, blogger, deep into open teaching resources. Former bunny (pronouns Thou/Thee)

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19.11.2023
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Latest posts by Josh Halpern trading as @elirabett

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Combined Measurement of the Higgs Boson Mass in $pp$ Collisions at $\sqrt{s}=7$ and 8 TeV with the ATLAS and CMS Experiments A new value for the Higgs boson mass will allow stronger tests of the standard model and of theories about the Universe's stability.

5500 authors on this one. 24 pages of autors names and addresses, 9 of content.

journals.aps.org/prl/abstract...

09.03.2026 18:16 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

The internet, on scientists: They're secretive gatekeepers, they hoard esoterica/the truth, they don't want anyone in their ivory tower little clubs

Actual scientists: LOOK, WE FOUND A 300 MILLION YEAR OLD FOSSILIZED CLOACCAL IMPRESSION AND THE VENT IS HORIZONTAL! PLZ READ MY 67-PAGE PAPER ABOUT IT

09.03.2026 04:42 πŸ‘ 1115 πŸ” 345 πŸ’¬ 1 πŸ“Œ 0

There are disagreements, but this is a PAUSE that never was killer for the next time that the surface temperature anomaly goes flat for a couple of years.

09.03.2026 14:57 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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Local opinion: Arizona Republicans want to make our children sick We have a vested interest in protecting our communities and everyone in them. β€œMedical freedom” is the antithesis of community.

The idea of β€œmedical freedom” weighs one parent’s decision to refuse vaccines as more important than another’s decision to protect their own children from contagious, vaccine-preventable diseases”.

@jimalwine.bsky.social and I in a new OpEd about AZ trying to ban childhood vaccine requirements.

09.03.2026 14:34 πŸ‘ 138 πŸ” 66 πŸ’¬ 13 πŸ“Œ 4
Tube for carrying conference posters open at top with blue poster

Tube for carrying conference posters open at top with blue poster

Prehistoric nerd tube

09.03.2026 14:43 πŸ‘ 2 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

The PAUSE So soon we forget or at least now it is clear there never was one

09.03.2026 03:35 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

This idiot is really going to crash the world economy. By choice. By his own lurching incompetence.

09.03.2026 03:11 πŸ‘ 88 πŸ” 4 πŸ’¬ 3 πŸ“Œ 1

To turn this on its head FR26 & much else show there is and has been no DECREASE in the rate of warming. That's worrying.

09.03.2026 03:28 πŸ‘ 0 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0
CMIP6 trends over the last 13 years (red) and the 13 years before (black) (using the screened simulations), along with the estimate trends from FR26 over (roughly) the same periods.

CMIP6 trends over the last 13 years (red) and the 13 years before (black) (using the screened simulations), along with the estimate trends from FR26 over (roughly) the same periods.

Is there an acceleration in global warming expected in the CMIP6 climate models? yes! But not as easy to detect in the real world.

(from www.realclimate.org/index.php/ar...)

(see also: www.realclimate.org/index.php/ar... from 2024).

09.03.2026 01:44 πŸ‘ 58 πŸ” 17 πŸ’¬ 4 πŸ“Œ 1

Next time go to Cherbourg!πŸ™ƒ

08.03.2026 19:54 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
Figure 1. Optical design and properties of our photonic structure. (a) Schematic of the layered structure. (b) Transmittance (T) and reflectance (R) spectra of an ideal heat-rejection window. The red background is the solar spectrum (AM1.5). (c) Comparison of the solar-spectrum-weighted visible transmittance (Tvis, 400–680 nm) and IR reflectance (RIR, 680–2500 nm) between our photonic structure and previous works. (d) A photo of our photonic structure, fabricated on a 4-inch glass, which shows its high visible transparency. (e, f) Calculated (e) and measured (f) R and T spectra. (g) Calculated (left) and measured (right) angle-dependent R spectra. The input light was assumed to be unpolarized.

Figure 1. Optical design and properties of our photonic structure. (a) Schematic of the layered structure. (b) Transmittance (T) and reflectance (R) spectra of an ideal heat-rejection window. The red background is the solar spectrum (AM1.5). (c) Comparison of the solar-spectrum-weighted visible transmittance (Tvis, 400–680 nm) and IR reflectance (RIR, 680–2500 nm) between our photonic structure and previous works. (d) A photo of our photonic structure, fabricated on a 4-inch glass, which shows its high visible transparency. (e, f) Calculated (e) and measured (f) R and T spectra. (g) Calculated (left) and measured (right) angle-dependent R spectra. The input light was assumed to be unpolarized.

1/ New preprint: "Cool windows: simultaneously engineering high visible transparency and strong solar rejection", led by Yeonghoon Jin arxiv.org/abs/2603.03771 πŸ’‘πŸ§ͺ

The goal was to design window films that are highly transparent across the visible but reduce solar heating as much as possible

05.03.2026 21:25 πŸ‘ 6 πŸ” 3 πŸ’¬ 2 πŸ“Œ 0

Less noise

08.03.2026 01:36 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 1

Most of it comes from Mexico and they also hate the Mexicans

Somewhat exaggerated. But not as much as you might suppose

08.03.2026 01:22 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

TL:DR Data without a model is numerical drivel

07.03.2026 16:09 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

Without a .model data is numerical drivel

06.03.2026 22:50 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
Preview
oeweek.oeglobal.org Call to Action: Co-designing and Enhancing Pharmacology for Nurses

#OEWeek26 πŸ”₯ "Call to Action: Co-designing and Enhancing Pharmacology for Nurses"
πŸ”œ17:00 (UTC) Hosts: Ontario Tech U Teaching and Learning Center
Join the Event πŸ”Ž https://twp.ai/4ive0a
#English #OnlinePublic

06.03.2026 15:00 πŸ‘ 0 πŸ” 1 πŸ’¬ 0 πŸ“Œ 0
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oeweek.oeglobal.org Intro to Open Book Publishing through TAMU Libraries Open Digital Publishing platform

#OEWeek26 #Today #Soon πŸ”₯ "Intro to Open Book Publishing through TAMU Libraries Open Digital Publishing platform"
πŸ”œ17:30 (UTC) Hosts: Texas A&M University
Join the Event πŸ”Ž https://twp.ai/4ive0f
#English #InPerson #oeweek #oeglobal #openeducation

06.03.2026 15:30 πŸ‘ 0 πŸ” 1 πŸ’¬ 0 πŸ“Œ 0

LibreTexts w. its homework system.

06.03.2026 14:57 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
A maroon logo for the OEGlobal Conference 2026 with the text Oct 7-9, 2026, Cambridge, MA, and Online, against the background of an illustrated map of Cambridge, Massachusetts. in pink and cyan colors, created by Mario Badilla at OEGlobal. https://conference.oeglobal.org/

A maroon logo for the OEGlobal Conference 2026 with the text Oct 7-9, 2026, Cambridge, MA, and Online, against the background of an illustrated map of Cambridge, Massachusetts. in pink and cyan colors, created by Mario Badilla at OEGlobal. https://conference.oeglobal.org/

Get ready for OEGlobal 2026β€”our website is now live!

Open Education Global (OEGlobal) is teaming up with MIT Open Learning and the Massachusetts Open & Low-Cost Educational Resources Advisory Council (OLERAC) to bring you a dynamic hybrid conference in Cambridge, MA and online!

06.03.2026 14:00 πŸ‘ 0 πŸ” 1 πŸ’¬ 1 πŸ“Œ 0
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An Article I’d Love to Read Cutting the budgetβ€”painlessly.

Crowdsourcing a quest for budget cuts that don't hurt (such as energy efficiency or early retirement incentives). www.insidehighered.com/opinion/colu...

06.03.2026 11:18 πŸ‘ 2 πŸ” 1 πŸ’¬ 0 πŸ“Œ 0

1930s. Bout right

06.03.2026 03:10 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
record of methane atmospheric concentrations, very constant from 8000BCE to about 1900 where it goes vertical

record of methane atmospheric concentrations, very constant from 8000BCE to about 1900 where it goes vertical

To concentrate minds there is always the scythe

06.03.2026 02:38 πŸ‘ 6 πŸ” 1 πŸ’¬ 0 πŸ“Œ 0
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[Ilya Somin] US Court of International Trade Orders Refund of All Illegally Collected IEEPA Tariffs Importantly, the Court ordered payment of refunds even to those businesses who have not filed a lawsuit to claim them.
05.03.2026 02:22 πŸ‘ 0 πŸ” 1 πŸ’¬ 0 πŸ“Œ 0

Where are the cats?

05.03.2026 03:52 πŸ‘ 2 πŸ” 0 πŸ’¬ 2 πŸ“Œ 0

In smaller place the business office wants you to qualify the Weird Stuff Inc place so they can buy from them. You learn about Dunn & Broadstreet

04.03.2026 18:07 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

Speak to one of the GA senators

04.03.2026 17:06 πŸ‘ 8 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

It's a very thin bench over there

04.03.2026 03:41 πŸ‘ 2 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

I'm constantly trying (/failing) to get this point across.

If you're a trained expert in a field, then it may be worthwhile to question the scientific consensus of your peers.

If you're not, the scientific consensus is absolutely the best you can do and it's arbitrary foolishness to disregard it.

24.02.2026 16:04 πŸ‘ 3760 πŸ” 853 πŸ’¬ 54 πŸ“Œ 50
Professor in history of science - Uppsala University Professor in history of science, Disciplinary Domain of Humanities and Social Sciences, Faculty of Arts, Department of History of Science and Ideas, Uppsala University

My department is hiring a professor in the history of science! www.uu.se/en/about-uu/...

02.03.2026 12:27 πŸ‘ 17 πŸ” 15 πŸ’¬ 0 πŸ“Œ 0

You will get a read on that tomorrow

03.03.2026 05:45 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0