À J-3 du #Hellfest2025, focus sur Howard, qui ouvrira la Valley samedi à 10h30 !

Fuzz rock électro, thérémine & live musclé : on parle du superbe Oscillations et de leur actu dans une interview exclusive !

https://youtu.be/TVOoLfhWrgM?si=COTJLvX4hbcpQ83J

A few days back, I posted some #AnimatedGifs of the exact solution for a large-amplitude undamped, unforced #Pendulum. I then thought to complete the study to include the case when it has been fed enough #energy to allow it just to undergo #FullRotations, rather than just #oscillations. Well, it turns out that it is “a bit more complicated than I first expected” but I finally managed it.

Howard : « Oscillations » et l’art d’être soi | Dans mon Eucalyptus perché :

https://dansmoneucalyptusperche.com/2025/05/11/howard-oscillations-et-lart-detre-soi/

REN, #Portugal's grid operator, claims the outage that's affected Portugal was caused by a fault in the Spanish electricity grid, related to a "rare atmospheric phenomenon". 
Due to extreme #temperature variations in #Spain, there were "anomalous #oscillations" in very high-voltage lines.
It says this is known as "induced #atmospheric #variation", which in turn led to oscillations which caused synchronisation failures between systems.
That led to successive disturbances across the interconnected European network. 
Given the complexity of the issue, it could take up to a week for the network to fully normalise again. »

https://news.sky.com/story/spain-portugal-power-outage-latest-large-parts-of-countries-affected-with-traffic-lights-not-working-and-phone-lines-down-13357538

The brain processes sensory information via gamma #oscillations, while top-down control is mediated via alpha/beta; how do these interact? This study provides a mechanistic account of the integration of these separate streams of information flow in visual attention @PLOSBiology https://plos.io/4iksxM3

XMM-Newton détecte de mystérieuses oscillations de rayons X dans un trou noir supermassif
https://www.sci.news/astronomy/xmm-newton-x-ray-oscillations-supermassive-black-hole-13578.html
#science #astronomie #astrophysique #trounoir #rayonx #télescope #XMMNewton #ESA #oscillations

Beta-band #oscillations regulate maintenance & deletion of #WorkingMemory representations in humans. This study shows that the WM performance of older adults can be predicted by beta-band neural variability during working memory deletion #PLOSBiology https://plos.io/3B8yw6y

Published one year ago on this day, the discovery of Ho'oleilana

https://doi.org/10.3847/1538-4357/aceaf3

How crazy is that? 50000 downloads for the Ho'oleilana paper, and still among the most read articles at ApJ!

https://doi.org/10.3847/1538-4357/aceaf3

Physics Today covers appreciation post

A Rule for the Cosmos (2017)

Feature article by Will J. Percival on Baryon Acoustic Oscillations as a Cosmological Ruler
https://doi.org/10.1063/PT.3.3789

First Results from DESI Make the Most Precise Measurement of Our Expanding Universe

Researchers have used the Dark Energy Spectroscopic Instrument to make the largest 3D map of our universe and world-leading measurements of dark energy, the mysterious cause of its accelerating expansion

https://newscenter.lbl.gov/2024/04/04/desi-first-results-make-most-precise-measurement-of-expanding-universe/

Cool video of baryon acoustic oscillations in 3D and how they act as a cosmic ruler for measuring dark energy, just released by Berkeley Lab

https://youtu.be/hoOyOAAj4iY?si=vfnScOcjNGgCHQ9P

interesting and fun video by Zahra Gomes on Baryon Acoustic Oscillations.

A video produced by the Rhodes Trust.

https://www.youtube.com/watch?v=g2bF5C1XcvQ

First citations for Ho'oleilana!

https://ui.adsabs.harvard.edu/abs/2023ApJ...954..169T/citations

Earth's Core Seems to Mysteriously Wobble Every 8.5 Years
https://www.sciencealert.com/earths-core-seems-to-mysteriously-wobble-every-8-5-years #earth #core #wobble #periodic #oscillations

Thanks to the "Sciences et Avenir" popular science magazine for this paper on the discovery of Ho'oleilana

It is on sale at newstands until November 29, and available online here: https://abo.sciencesetavenir.fr/liseuse (paywalled)

Wow! fantastic video - as always - by Dr Maggie Lieu on the discovery of Ho'oleilana.

https://youtu.be/Vm_WophnrOY

#ho'oleilana #hooleilana #cosmology #bao #baryon #acoustic #oscillations #astronomy #astrophysics #astrodon #universe #space #science #research #discovery #cosmography #map #maps #superclusters #physics #theory #bigbang #lcdm #space_mog #youtube #video #scicomm