Tootfinder

The Extended Atlas of Low-resolution Spectra from the Infrared Astronomical Satellite
G. C. Sloan, Kathleen E. Kraemer, K. Volk
https://arxiv.org/abs/2507.14134

The Extended Atlas of Low-resolution Spectra from the Infrared Astronomical Satellite
We present an updated atlas of spectra from the Low-Resolution Spectrometer (LRS) on the Infrared Astronomical Satellite (IRAS), which took spectra from 7.67 to 22.73 um with a spectral resolving power (lambda / Delta lambda) of 20-60. The updated atlas includes 11,238 spectra, including 5425 spectra published in the original LRS Atlas, 5796 spectra published in three later papers, and 17 spectra previously available online but not published. The updated atlas has significantly more sources clo…

Source: Snap is considering raising outside money to fund Spectacles development or spinning off Spectacles, to compete with deeper-pocketed rivals like Meta (The Information)
https://www.theinformation.com/articles/struggling-snap-considers-outsi…

Struggling Snap Considers Outside Funding for AR Glasses
For nearly as long as Evan Spiegel has run Snap Inc., his big bet has been on Spectacles, the company’s augmented reality glasses. All together, he has poured $3 billion into the effort—a fraction of what Mark Zuckerberg at Meta Platforms has invested in wearable technology, but a major expense ...

US NATO ambassador warns China over 'subsidizing' Russia's war in Ukraine: https://benborges.xyz/2025/07/22/us-nato-ambassador-warns-china.html

Asymptotically Optimal Codes Correcting One Substring Edit
Yuting Li, Yuanyuan Tang, Hao Lou, Ryan Gabrys, Farzad Farnoud
https://arxiv.org/abs/2507.13808 …

Asymptotically Optimal Codes Correcting One Substring Edit
The substring edit error is the operation of replacing a substring $u$ of $x$ with another string $v$, where the lengths of $u$ and $v$ are bounded by a given constant $k$. It encompasses localized insertions, deletions, and substitutions within a window. Codes correcting one substring edit have redundancy at least $\log n+k$. In this paper, we construct codes correcting one substring edit with redundancy $\log n+O(\log \log n)$, which is asymptotically optimal.

BBB is tegen subsidie voor waterstofproductie als (een gedeelte van) de waterstof wordt geëxporteerd. Mogen we aannemen dat de BBB ook tegen landbouwsubsidie is als (een deel van) de landbouwproductie wordt geëxporteerd?
https://boerburgerbeweging.nl/fr…

BBB wil per direct stoppen met subsidies voor buitenlandse klimaatwinst | BBB
Henk Vermeer: “Bizar. Nederland betaalt, België verduurzaamt.”

an update on the fire at the museum of jurassic technology, via museum chronicler lawrence weschler. #LosAngeles

July 17, 2025 : Wondercab Mini (94A)
SOS: FIRE AT THE MJT

Classifying localizing subcategories of a Grothendieck category
Reza Sazeedeh
https://arxiv.org/abs/2507.13749 https://arxiv.org/pdf/…

Classifying localizing subcategories of a Grothendieck category
Let $\mathcal{A}$ be a Grothendieck category, with Sp$\mathcal{A}$ denoting the set of isomorphism classes of indecomposable injective objects of $A$, and ASpec$\mathcal{A}$ the atom spectrum of $\mathcal{A}$. In this paper, we introduce new topologies on Sp$\mathcal{A}$ and ASpec$\mathcal{A}$, and classify localizing subcategories of: (i) locally monoform categories, (ii) locally finitely generated categories, and (iii) locally coherent categories via open subsets of Sp$\mathcal{A}$ an…

Abundance Diagnostics from Slitless Imaging Spectrometer: A Proof-of-Concept for MaGIXS-2
Biswajit Mondal, Amy R. Winebarger, P. S. Athiray
https://arxiv.org/abs/2508.14866 http…

Abundance Diagnostics from Slitless Imaging Spectrometer: A Proof-of-Concept for MaGIXS-2
Elemental abundance diagnostics in the solar corona are crucial for understanding energy transport, plasma heating, and magnetic activity. Most earlier imaging-spectroscopic studies have relied on slit-based spectrometers, which offer high spectral resolution but are limited in spatiotemporal coverage and temperature diagnostics. In contrast, slitless spectrographs like the Marshall Grazing Incidence X-ray Spectrometer (MaGIXS) produce overlapping spatial-spectral data (overlappograms) to enabl…

https://substack.com/inbox/post/168787591

Q&A with Coinbase CEO Brian Armstrong on starting the company, battling North Korean hackers, stablecoin adoption, the GENIUS Act, pro-crypto Congress, and more (John Collison/Cheeky Pint)
https://cheekypint.substack.com/p/coinbase-ceo-brian-armstrong-on-bitcoin…

Coinbase CEO Brian Armstrong on bitcoin going to $1 million, electing a pro-crypto Congress, and Jamie Dimon
Brian Armstrong joins John Collison to talk about what’s happening behind the scenes at Coinbase: battling North Korean hackers, war stories from early scaling, confronting people who won’t use AI to code, Coinbase becoming people’s primary financial account, and why banks are now embracing crypto.