Tootfinder

The DST switch has two advantages: moving an hour of summer daylight we'd normally sleep through into our evenings, and reducing the variation in the time of sunrise (avoid dark mornings).
A 1-hour adjustment makes quite a big difference in middle latitudes. Too far south & the natural difference is too small; to far north it's too big for 1 hr to matter. South of 40°N and north of 60°N the argument is weaker. See the graph: at 40° the difference in sunrise time is 2h52, at…

Plan on a glorious extra hour of sleep as most of America “falls back” into standard time.
But make sure to get outside for some morning sun too — it’ll help your body clock reset faster.
Daylight saving time ends at 2 a.m. local time Sunday, which means you should set your clock back an hour before you go to bed.
Standard time will last until March 8, when we will again “spring forward” with the return of daylight saving time.

Moody Urbanity - Old & New IV 🔆
情绪化城市 - 新与旧 IV 🔆
📷 Nikon FE
🎞️ Ilford HP5 Plus 400, expired 1993
#filmphotography #Photography #blackandwhite

We went for a walk. I saw a pelican gliding along on the lake. Wasn't fast enough to get close enough for a photo before he sailed around a corner. But took these on the way home. Just a short walk in suburbia. Canberra views really are delightful.
#LakeTuggeranong #Canberra

Bimorph Lithium Niobate Piezoelectric Micromachined Ultrasonic Transducer
Ziqian Yao, Vakhtang Chuluhadze, Zihuan Liu, Xiaoyu Niu, Tzu-Husan Hsu, Byeongjin Kim, Neal Hall, Ruochen Lu
https://arxiv.org/abs/2509.00600

Bimorph Lithium Niobate Piezoelectric Micromachined Ultrasonic Transducer
This work demonstrates a prototype bi-layer piezoelectric micromachined ultrasonic transducer (PMUT) based on transferred periodically poled piezoelectric film (P3F) X-cut lithium niobate (LN). Opposite in-plane polarizations in the piezoelectric film stack are employed to enable efficient lateral field excitation of the flexural mode. Thanks to its high piezoelectric coefficient and low dielectric loss, the X-cut LN exhibits high figure of merits (FoMs) as both sensors and transducers. The fab…

Self-organized adaptive branching in frangible matter
P. L. B. Fischer, J. Tauber, T. Koch, L. Mahadevan
https://arxiv.org/abs/2509.26101 https://arxiv.org…

Self-organized adaptive branching in frangible matter
Soft and frangible materials that remodel under flow can give rise to branched patterns shaped by material properties, boundary conditions, and the time scales of forcing. We present a general theoretical framework for emergent branching in these frangible (or threshold) materials that switch abruptly from resisting flow to permitting flow once local stresses exceed a threshold, relevant for ex- amples as varied as dielectric breakdown of insulators and the erosion of soft materials. Simulation…

Spotify raises UK prices by £1 after previously raising them in April 2024; the Premium individual monthly plan will now cost £12.99 (Mandy Dalugdug/Music Business Worldwide)
https://www.musicbusinessworldwide.com/spo

Spotify raises UK and Switzerland Premium prices again as analysts see US hike by early 2026
The 8.3% increase marks the second time in 18 months that the Swedish streaming giant has raised UK prices by £1.

#NowPlaying - i rarely intend to buy willie nelson albums but then there they are. this is delightful & sets a sweet mood, from 1981, in the "stardust"/standards mode but more a chill & well-recorded acoustic session than jazz pop & maybe a bit looser, even. @…

Translational tilings: structured or wild?
Rachel Greenfeld
https://arxiv.org/abs/2509.25576 https://arxiv.org/pdf/2509.25576

Translational tilings: structured or wild?
The study of the structure of translational tilings has captivated mathematicians, scientists, and the general public for centuries and continues to thrive at the crossroads of analysis, combinatorics, dynamics, logic, number theory, and geometry. This vibrant field seeks to uncover the delicate divide between rigid structures and unpredictable, ``wild'' behaviors that arise when sets fill space by translations without gaps or overlaps. We provide an overview of this study and recent developmen…

2.34 kV \b{eta}-Ga2O3 Vertical Trench RESURF Schottky Barrier Diode with sub-micron fin width
Chinmoy Nath Saha, Saurav Roy, Yizheng Liu, Carl Peterson, Sriram Krishnamoorthy
https://arxiv.org/abs/2509.21857

2.34 kV \b{eta}-Ga2O3 Vertical Trench RESURF Schottky Barrier Diode with sub-micron fin width
In this letter, we present a kilovolt-class \b{eta}-Ga2O3 vertical trench Schottky barrier diode with a field plate incorporating narrow fin width (Wfin) structures of sub-micron dimensions. We used a nanolaminate dielectric comprising a stack of multiple thin TiO2 and Al2O3 layers as RESURF dielectric and for field plate edge termination. Both Wfin of 200 nm and 500 nm demonstrate excellent on-state performance with specific on-resistance (Ron,sp) of 9.8-12 mohmcm2, and 10^10 rectification rat…