Tootfinder

NASA is taking steps to potentially roll back the #ArtemisII rocket and Orion spacecraft to the Vehicle Assembly Building (VAB) at the agency’s Kennedy Space Center in Florida after overnight Feb. 21 observing interrupted flow of helium to the SLS (Space Launch System) rocket’s interim cryogenic propulsion stage: https://www.nasa.gov/blogs/missions/2026/02/21/nasa-troubleshooting-artemis-ii-rocket-upper-stage-issue-preparing-to-roll-back/ - the upper stage uses helium to maintain the proper environmental conditions for the stage’s engine and to pressurize liquid hydrogen and liquid oxygen propellant tanks; the systems worked during NASA’s Artemis II wet dress rehearsals, but teams were not able to properly flow helium during normal operations and reconfigurations following the wet dress rehearsal that concluded Feb. 19.

Time course of visual plasticity following adult-onset #deafness (in cats) https://www.nature.com/articles/s41598-026-39490-8

GeoStruXer and Bentley used AI with satellite data to cut materials and embodied carbon in a Saudi grain warehouse retrofit—no performance lost.
Regeneration International launched training and standards to help farmers adopt regenerative practices at scale.
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Weekly Climate Solutions Digest
Welcome Frost writes tiny runes on windows in the north, while far south, cicadas tremble the air and ripe fruit perfumes the shade. It all feels measured, like a held breath. This week shares that feeling of poised energy. We track power. A 25 year solar plus storage pact in

Series C, Episode 04 - Dawn of the Gods
AVON: We will do nothing to counter the force acting upon the Liberator. We then plot the Liberator's course on the main battle computer flight predictor to see exactly how she is behaving. Once we understand how the force is operating we may be some way toward defeating it.
TARRANT: Strange. The Liberator's following a curve. Traction beams produce straight-line motion. Zen, I want a prediction of the Liberator's course based …

Filing: Samsung plans to acquire $1.73B of its stock for employee and executive compensation, as part of a performance-linked scheme introduced in October 2025 (Kyu-seok Shim/Reuters)
https://www.reuters.com/business/samsung-e…

Well. I’ve been accepted to my first conference!
This will sound strange to many academics out there, but working in the fine arts I don’t generally pay much attention to academic conferences—but having had a research semester last fall I was able to do a deep dive into the educational philosophy of practice-based filmmaking education and apparently the conference organisers agree that it’s interesting! I got an email this morning that my abstract was accepted.
Now I just need in…

Second International Conference on Embodied Education 2026
Copenhagen 8 - 11 June 2026: The 2nd International Conference on Embodied Education is aimed at conveying a community of people interested in embodied education and the related topics, like enaction, emotion, extended mind, embedded cognition, sports, wellbeing, and the performative arts (such as music, dance and drama).

Perovskite solar cells just cleared a major hurdle toward commercialization.
Researchers developed a new two-dimensional interlayer that kept modules running at 95% efficiency after 5,000 hours of brutal light, heat, and UV exposure. The breakthrough uses neutral triazine molecules and co-crystal engineering that slots right into existing manufacturing lines.

Researchers achieve record perovskite solar module stability under light, heat, and UV stress
An international research team has developed a new two-dimensional perovskite interlayer based on a co-crystal engineering strategy for more robust perovskite films. It demonstrated improved performance in small area perovskite solar cells and, in a 48 cm2 module, contributed to retain 95% of initial efficiency after 5,000 h.

Equilibria: Fair Multi-Tenant CXL Memory Tiering At Scale
Kaiyang Zhao, Neha Gholkar, Hasan Maruf, Abhishek Dhanotia, Johannes Weiner, Gregory Price, Ning Sun, Bhavya Dwivedi, Stuart Clark, Dimitrios Skarlatos
https://arxiv.org/abs/2602.08800 https://arxiv.org/pdf/2602.08800 https://arxiv.org/html/2602.08800
arXiv:2602.08800v1 Announce Type: new
Abstract: Memory dominates datacenter system cost and power. Memory expansion via Compute Express Link (CXL) is an effective way to provide additional memory at lower cost and power, but its effective use requires software-level tiering for hyperscaler workloads. Existing tiering solutions, including current Linux support, face fundamental limitations in production deployments. First, they lack multi-tenancy support, failing to handle stacked homogeneous or heterogeneous workloads. Second, limited control-plane flexibility leads to fairness violations and performance variability. Finally, insufficient observability prevents operators from diagnosing performance pathologies at scale.
We present Equilibria, an OS framework enabling fair, multi-tenant CXL tiering at datacenter scale. Equilibria provides per-container controls for memory fair-share allocation and fine-grained observability of tiered-memory usage and operations. It further enforces flexible, user-specified fairness policies through regulated promotion and demotion, and mitigates noisy-neighbor interference by suppressing thrashing.
Evaluated in a large hyperscaler fleet using production workloads and benchmarks, Equilibria helps workloads meet service level objectives (SLOs) while avoiding performance interference. It improves performance over the state-of-the-art Linux solution, TPP, by up to 52% for production workloads and 1.7x for benchmarks. All Equilibria patches have been released to the Linux community.
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On the spatial structure and intermittency of soot in a lab-scale gas turbine combustor: Insights from large-eddy simulations
Leonardo Pachano, Daniel Mira, Abhijit Kalbhor, Jeroen van Oijen
https://arxiv.org/abs/2602.23155 https://arxiv.org/pdf/2602.23155 https://arxiv.org/html/2602.23155
arXiv:2602.23155v1 Announce Type: new
Abstract: This work presents a numerical investigation of soot formation in the Cambridge lab-scale gas turbine combustor. Large-eddy simulations (LES) of a swirl-stabilized ethylene flame are performed using the flamelet generated manifold method coupled with a discrete sectional model to account for soot formation, growth, and oxidation. The study aims to elucidate the mechanism governing the spatial structure and intermittency of soot, supported by comparisons with experimental data. The predicted soot distribution agrees well with measurements, with peak concentrations near the bluff body. Flow recirculation is identified as the key mechanism driving soot accumulation in fuel-rich regions, where surface reactions dominate soot mass growth. Soot intermittency arises from fluctuations in the flow field driven by interactions between the flame front and the recirculation vortex. Two soot modeling approaches are evaluated, differing in their treatment of soot model quantities: the first approach employs on-the-fly computation of source terms (FGM-C), while the second uses fully pre-tabulated source terms (FGM-T). Their predictive performance and computational cost are compared in the context of unsteady, sooting flames in swirl-stabilized combustors.
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#13 is a lucky number for me as I wore it on my hockey jersey for 20 years of unremarkable performance in industrial and adult leagues and didn't die. And that brings us to #13 on our countdown of #CanadaRivers.
The Ottawa River begins at Lac des Outaouais, north of the Laurentian Mountains of central Quebec, flowing west to Lake Timiskaming. From there its route has been used to define the interprovincial border between Quebec and Ontario. The 1,271 km river has a watershed of 146,300 km2, ultimately draining into the St. Lawrence River. It served as a major trade route for Indigenous people and Ottawa means "to trade" in Algonquin. The river, it's surrounding forests and Indigenous people were all severely impacted by the forestry industry. Lumberjacks brought disease and over-hunted local game, logs jammed the river and dams were constructed to control water levels for moving timber. Today 50 dams, reservoir and hydroelectric, exist on the Ottawa.
#CanadaIsAwesome #Hydrology
https://leveller.ca/2015/11/ottawa-river-watershed/