Tootfinder

Astrobites is partnering with @blackinastro.bsky.social this year for Black Space Week!
If you’d like to register to participate as a writer or interviewee you can fill out the Google Form below or in the QR code in the flyer!
The deadline is Friday March 6th.
https://

Black In Astro x Astrobites -- Guest posts & AAS
Black In Astro (BIA): Founded in 2020, Black In Astro is a grassroots organization with the mission to celebrate and amplify Black scientists, educators, and engineers within the space community. Black Space Week (BSW), presented by BIA , is an annual global celebration and amplification of Black people in space-related fields and industries taking place the week of Juneteenth. Astrobites: Astrobites is a daily astrophysical literature journal written by graduate students in astronomy since 2…

Okay, I'm not commenting on the merits of this lawsuit, but surely this could have been phrased better.

from my link log —
Which emoji scissors can cut?
https://wh0.github.io/2020/01/02/scissors.html
saved 2020-01-03 https://dotat.at…

The third-strongest #SolarFlare with a peak of X8.1 has just occurred: see the links under "Die Fleckengruppe hat soeben einen X8.1-Flare produziert" in https://skyweek.wordpress.com/2026/02/01/generalprobe-wet-dress-rehearsal-fur-artemis-ii/

Already 6 years old, so not even taking into account post-2022 hyperscaling, this is a sobering, very rational and well argued 20 min presentation for some cold flush reality check of the hot fever dreams of AI proponents (and all YOLO energy/resource guzzlers of any walk/standing):
Blip (2020)
https://www.youtube.com/watch?v=cd…

"Amsterdam to enact landmark ban on fossil fuel and meat advertising in public spaces"
#Amsterdam #FossilFuels #Energy

The European city banning all fossil fuel and meat adverts in public
Amsterdam initially proposed the move in 2020, becoming the first city in the world to do so.

psi: Plant Photosystem I excitation energy transfer network (2020)
Weighted directed network of the light-harvesting Photosystem Ι (PSI) of the plant Pisum sativum. The nodes represent chromophores with different identities (i.e. chlorophyll a, chlorophyll b, β-carotene and derivates, lutein, violaxanthin), while edges represent FRET transfer between chromophores. The link directionality connecting nodes in the PSI network depends on the energy levels of the connected chromophores. The…

{testthat} is great for automatic testing. Here are some tricks for the heavy user: #rstats

"Plötzlich Wissen!" ist ein guerilla #WissKomm Projekt von Dr. Julia Schnetzer, Inga Marie Ramcke und mir, gestartet in 2017 (Wissenschaftsjahr 2016*17 Meere und Ozeane), das sich zur Pandemie auf online verlegen musste, einiges hin & her hinter sich hat und immernoch läuft. Heute kam unser Paper darüber raus, im Journal of Science Communication, Sonderedition "

Three scientists walk into a bar... Approaching new audiences for informal science communication: the project “Plötzlich Wissen!” (Sudden Knowledge!)
Sudden Knowledge! (Plötzlich Wissen!), a science communication format established throughour own initiative as scientists, implemented science communication in a spontaneousconversational setting. It combined elements of guerilla science/street science, science buskingand pub science events. Between 2017 and 2020 the

There have been FOUR #SolarFlares in the X class over just 20 hours: https://science.nasa.gov/blogs/solar-cycle-25/2026/02/02/sun-releases-4-strong-solar-flares/. But the consequences for Earth will be practically zero: https://bsky.app/profile/vincentledvina.bsky.social/post/3mdv7xktvs22b and https://x.com/JAtanackov/status/2018334607653937177 - what a waste ... ;-)

from my link log —
Files are fraught with peril.
https://danluu.com/deconstruct-files/
saved 2020-01-06 https://dotat.at/:/2FDEV.html

Fulton County, Georgia, to sue Trump administration over seizure of 2020 election records (NBC News)
https://www.nbcnews.com/politics/politics-news/fulton-county-sue-trump-doj-fbi-seizure-2020-election-records-rcna257052
http://www.memeorandum.com/260203/p1#a260203p1

The FBI raided an elections office in Georgia
and seized ballots from the 2020 presidential election
in connection with a federal investigation into
“deficiencies or defects” into Donald Trump’s loss in the state, according to newly unsealed documents.
An affidavit for the search signed by a judge last month reveals that
the investigation followed a referral from Trump’s former campaign-linked attorney

FBI raided Georgia election office over 2020 ‘defects’ on command of Trump’s ‘Stop the Steal’ lawyer
FBI affidavit reveals Trump administration’s criminal investigation was sparked by Kurt Olsen

LŠ, je suis tout Š fait d’accord avec M. Ganzer: «Ce que je constate, ce sont des manquements. Et des manquements ne doivent pas arriver dans un pays tel que le nôtre.»
https://www.rts.ch/info/regions/valais/202

RE: https://mamot.fr/@bonpoteofficiel/116047400036063084
En tant que Sénateur, il porte la loi qui facilite son exploitation (lui permettant de s'agrandir énormément).
Il touche plus d'1M€ de subventions depuis 2020, dont 450K€ en juin 2025 p…

Microsoft: Aktienkurs wegen des schwächeren Cloud-Ausblicks abgeschmiert
Während die Aktien von Meta eine regelrechte Rallye hingelegt haben, war Donnerstag für Microsoft der schwärzeste Börsentag seit 2020. Schuld hat die Cloud.

One more #ArtemisII piece in https://www.cbsnews.com/news/4-artemis-ii-astronauts-getting-ready-for-flight-to-far-side-of-the-moon-60-minutes-transcript/ (13-minutes video and transcript) - it also highlights the renewed 'race' between SpaceX and Blue Origin for building the Artemis III lander. And falsely claims that they are the first to actually show the Blue Moon MK1: see https://www.instagram.com/p/DRVZLMkkVgO/ from last November ...

Jährlicher Zubau und Rückbau von #Balkonsolarleistung in Deutschland mit Stand vom 08.01.2026.
Unplausible Inbetriebnahmedaten von 1900 bis 2017 wurden durch das Registrierungsdatum der #Steckersolaranlage ersetzt.
👉 Zusatzlesestoff:

Approximate Cartesian Tree Matching with Substitutions
Panagiotis Charalampopoulos, Jonas Ellert, Manal Mohamed
https://arxiv.org/abs/2602.08570 https://arxiv.org/pdf/2602.08570 https://arxiv.org/html/2602.08570
arXiv:2602.08570v1 Announce Type: new
Abstract: The Cartesian tree of a sequence captures the relative order of the sequence's elements. In recent years, Cartesian tree matching has attracted considerable attention, particularly due to its applications in time series analysis. Consider a text $T$ of length $n$ and a pattern $P$ of length $m$. In the exact Cartesian tree matching problem, the task is to find all length-$m$ fragments of $T$ whose Cartesian tree coincides with the Cartesian tree $CT(P)$ of the pattern. Although the exact version of the problem can be solved in linear time [Park et al., TCS 2020], it remains rather restrictive; for example, it is not robust to outliers in the pattern.
To overcome this limitation, we consider the approximate setting, where the goal is to identify all fragments of $T$ that are close to some string whose Cartesian tree matches $CT(P)$. In this work, we quantify closeness via the widely used Hamming distance metric. For a given integer parameter $k>0$, we present an algorithm that computes all fragments of $T$ that are at Hamming distance at most $k$ from a string whose Cartesian tree matches $CT(P)$. Our algorithm runs in time $\mathcal O(n \sqrt{m} \cdot k^{2.5})$ for $k \leq m^{1/5}$ and in time $\mathcal O(nk^5)$ for $k \geq m^{1/5}$, thereby improving upon the state-of-the-art $\mathcal O(nmk)$-time algorithm of Kim and Han [TCS 2025] in the regime $k = o(m^{1/4})$.
On the way to our solution, we develop a toolbox of independent interest. First, we introduce a new notion of periodicity in Cartesian trees. Then, we lift multiple well-known combinatorial and algorithmic results for string matching and periodicity in strings to Cartesian tree matching and periodicity in Cartesian trees.
toXiv_bot_toot

An F.B.I. search warrant affidavit unsealed on Tuesday shows that
a criminal investigation into 2020 election results in Fulton County, Ga.,
was set off by a leading election denier in the Trump administration
and relied heavily on claims about ballots that have been widely debunked.
The unsealing of the affidavit in Fulton County is likely to raise more questions
about the Trump administration’s use of the F.B.I. and Justice Department to revive old, largely di…

"Georgia Ballot Inquiry Originated From Election Denier in Trump White House" #ELB
NYT: An F.B.I. search warrant affidavit unsealed on Tuesday shows that a criminal investigation into 2020 election results in Fulton County, Ga., was set off by a leading election denier in the Trump administration and relied heavily on claims about … Continue reading “Georgia Ballot Inquiry Originated From Election Denier in Trump White House” →

from my link log —
Functional programming in m4.
https://minnie.tuhs.org/pipermail/tuhs/2020-August/022108.html
saved 2020-08-25 https:…

The #Artemis stack on the pad in a good image from the ISS: https://x.com/Astro_ChrisW/status/2018365716181705015 - processed with IrfanView, using AutoAdjustColors and contrast adjustment. Meanwhile the Wet Dress Rehearsal is in trouble because of - you guessed it - a hydrogen leak. Since the updates on https://www.nasa.gov/blogs/missions/ have become super-sparse it's hard to tell how serious the problem is.

faculty_hiring_us: Faculty hiring networks in the US (2022)
Networks of faculty hiring for all PhD-granting US universities over the decade 2011–2020. Each node is a PhD-granting institution, and a directed edge (i,j) indicates that a person received their PhD from node i and was tenure-track faculty at node j during time of collection (2011-2020). This dataset is divided into separate networks for all 107 fields, as well as aggregate networks for 8 domains, and an overall network for …

Donald Trump didn't say he wanted to fix elections everywhere out of some altruistic vision of a more free, more democratic society.
He said he wanted to take over the voting in at least 15 places.
We know that means he is targeting the specific cities, counties, and districts that saved American democracy in 2020 and that could destroy Republican majorities in November.
This is why Tulsi Gabbard was in Fulton County.
They are already on the ground,
already …

I just gave to the Save America Movement!
Join the fight »

I'm going to smack the first person saying that 2026 can only get better.
Clearly the lessons of every year after 2020 hasn't been learned.

The Wet Dress Rehearsal for #ArtemisII has begun in earnest with the tanking of the SLS Core stage now underway as planned: frequent updates on https://www.nasa.gov/blogs/missions/ and https://www.youtube.com/watch?v=5zDlM8d4Q7g (the pictures here from https://images.nasa.gov/ show yesterday's sunrise and moonrise behind the stack on the pad).

from my link log —
AMD Zen 3 Ryzen deep dive review.
https://www.anandtech.com/show/16214/amd-zen-3-ryzen-deep-dive-review-5950x-5900x-5800x-and-5700x-tested
saved 2020-11-06

A live view of the #ArtemisII stack on the pad: https://www.youtube.com/watch?v=xCrPD7tfcr0 - where the countdown for the Wet Dress Rehearsal has begun at 1:13 UTC; see https://www.nasa.gov/blogs/missions/2026/01/31/countdown-begins-for-artemis-ii-wet-dress-rehearsal/ for the timeline and https://skyweek.wordpress.com/2026/02/01/generalprobe-wet-dress-rehearsal-fur-artemis-ii/ for maaany Artemis-related links going back to 2023.

Tulsi Gabbard, the director of national intelligence,
is running her own review into the 2020 election with Donald Trump’s approval,
working separately from a justice department investigation
even as she joined an FBI raid of an election center in Georgia last week.
Her presence at the raid drew criticism from Democrats and former intelligence officials,
who questioned why the country’s top intelligence officer with no domestic law enforcement powers would appea…

RE: #ArtemisII WDR: https://www.nasa.gov/blogs/missions/2026/02/03/artemis-ii-wet-dress-rehearsal-test-terminated-at-t-515/ - a lot of unfinished business ...

wiki_science: Wikipedia Map of Science (2020)
A network of scientific fields, extracted from the English Wikipedia in early 2020. Nodes are wikipedia pages representing natural, formal, social and applied sciences, and two nodes are linked if the cosine similarity of the page content is above a threshold. See <http://www.s…

from my link log —
Merkle trees and build systems with OSTree and ninja.
https://lwn.net/Articles/821367/
saved 2020-06-11 https://dotat.at/:/R8DC9.htm…

By any measure, the F.B.I.’s search of an election center in Fulton County, Ga., last week was extraordinary.
Agents seized truckloads of 2020 ballots, as Trump harnessed the levers of government to not only buttress his false claims of widespread voter fraud,
but also to try to build a criminal case against those he believes wronged him.
What happened the next day was in some ways even more unusual, The New York Times has learned.
Behind closed doors, Tulsi Gabbard,…

Gabbard Arranges Trump Call With FBI Agents After Georgia Election Center Search
Tulsi Gabbard, the director of national intelligence, brokered the call and President Trump directly questioned frontline agents on the inquiry, The Times has learned.

Need to get 'into the mood' about #ArtemisII? The 27-minute feature https://www.youtube.com/watch?v=sMoXNq2n9_Y from NBC News could do the job.

As Trump suggests the federal government should “nationalize”
and take over the elections process from the states,
we speak with Arizona Secretary of State #Adrian #Fontes.
He is the former county recorder for Maricopa County, Arizona, and oversaw elections there in 2020.
The Justice Department ha…

“No Means No”: AZ Secretary of State Calls for Resistance as Trump Pushes to “Nationalize” Voting
As President Trump suggests the federal government should “nationalize” and take over the elections process from the states, we speak with Arizona Secretary of State Adrian Fontes. He is the former county recorder for Maricopa County, Arizona, and oversaw elections there in 2020. The Justice Department has sued Arizona and over 20 other states for their full voter registration lists. “No means no,” Fontes says in response to the Trump administration’s encroachment on state authority. …

from my link log —
libfirm/cparser: C99 parser and frontend.
https://github.com/libfirm/cparser
saved 2020-05-25 https://dotat.at/:/4YCCB.html…

GitHub - libfirm/cparser: C99 parser and frontend for libfirm
C99 parser and frontend for libfirm. Contribute to libfirm/cparser development by creating an account on GitHub.

from my link log —
Mesh: a compacting memory allocator for C/C .
https://github.com/plasma-umass/Mesh
saved 2020-08-22 https://dotat.at/:/NQV9V.ht…

Trump repeats claim that federal government should run elections in some states
Asked by a reporter to explain his suggestion on Monday,
to podcaster-turned-FBI deputy-director-turned-podcaster-again Dan Bongino,
that the US should “nationalize” elections
and have them run by the federal government,
Trump repeats his false claims that elections in states he lost in 2020 were “crooked”.
“If you think about it, the state is an agent for the federal governmen…

from my link log —
Composite data type performance issues in PostgreSQL.
https://www.cybertec-postgresql.com/en/composite-type-performance-issues-in-postgresql/
saved 2020-06-17

from my link log —
Mapping a universe of open source software: the Nixpkgs dependency graph.
https://www.tweag.io/blog/2019-02-06-mapping-open-source/
saved 2020-07-28

Mapping a Universe of Open Source Software
The repositories of distributions such as Debian and Nixpkgs are among the largest collections of open source (and some unfree) software. They are complex systems that connect and organize many interdependent packages. In this blog post I'll try to shed some light on them from the perspective of Nixpkgs, mostly with visualizations of its complete dependency graph.

from my link log —
Evaluating TCP BBRv2 on the Dropbox edge network.
https://arxiv.org/abs/2008.07699
saved 2020-08-19 https://dotat.at/:/FHLM3.html

Evaluating BBRv2 on the Dropbox Edge Network
Nowadays, loss-based TCP congestion controls in general and CUBIC specifically became the de facto standard for the Internet. BBR congestion control challenges the loss-based approach by modeling the network based on estimated bandwidth and round-trip time. At Dropbox, we've been using BBRv1 since 2017 and are accustomed to its pros and cons. BBRv2 introduces a set of improvements to network modeling (explicit loss targets and inflight limits) and fairness (differential probing and headroom for…

from my link log —
FAQs on aerosol transmission of COVID-19.
https://tinyurl.com/FAQ-aerosols
saved 2020-10-06 https://dotat.at/:/8RYZW.html

FAQs on Protecting Yourself from Aerosol Transmission
FAQs on Protecting Yourself from COVID-19 Aerosol Transmission Shortcut to this page: https://tinyurl.com/FAQ-aerosols Version: 1.88, 13-Aug-2021 Click here to jump over the scientific & historical details and go straight to the recommendations, Click here for automatic translation into many l...