lurker<p>говорят будто король гольій <a class="hashtag" href="https://juick.com/tag/physics" rel="nofollow noopener noreferrer" target="_blank">#physics</a></p>
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#Physics
133 posts · 108 participants · 8 posts today
safest_integer<p>If <a href="https://mastodon.social/tags/AI" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>AI</span></a> companies are cheating on <a href="https://mastodon.social/tags/llm" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>llm</span></a> benchmarks, should we also be concerned about the claimed performance of AI <a href="https://mastodon.social/tags/weather" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>weather</span></a> prediction models compared to traditional <a href="https://mastodon.social/tags/physics" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>physics</span></a> and <a href="https://mastodon.social/tags/science" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>science</span></a> based models?</p><p>**Chatbots Are Cheating on Their Benchmark Tests**<br><a href="https://www.theatlantic.com/technology/archive/2025/03/chatbots-benchmark-tests/681929/" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://www.</span><span class="ellipsis">theatlantic.com/technology/arc</span><span class="invisible">hive/2025/03/chatbots-benchmark-tests/681929/</span></a></p>
MPI for the Science of Light<p>“At the nexus of <a href="https://wisskomm.social/tags/physics" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>physics</span></a> and medicine, we are just beginning to grasp the profound significance of the glycocalyx in health and disease.” </p><p>Prof. Leonhard Möckl, research group leader ›Physical Glycosciences‹ at <a href="https://wisskomm.social/tags/MPL" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>MPL</span></a>, was honored with the ›Rising Star‹ Award of the <a href="https://wisskomm.social/tags/AmericanChemicalSociety" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>AmericanChemicalSociety</span></a>. The annual award highlights leaders in scientific <a href="https://wisskomm.social/tags/research" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>research</span></a> worldwide whose scientific contributions have a lasting impact on research in various fields of natural <a href="https://wisskomm.social/tags/science" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>science</span></a>. </p><p>👉 <a href="https://mpl.mpg.de/news/article/american-chemical-society-honors-leonhard-moeckl-as-rising-star" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">mpl.mpg.de/news/article/americ</span><span class="invisible">an-chemical-society-honors-leonhard-moeckl-as-rising-star</span></a></p>
Thomas Weibel<p>Moon phase calculator "Meton" @ <a href="https://www.thomasweibel.ch/meton" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://www.</span><span class="">thomasweibel.ch/meton</span><span class="invisible"></span></a>, new physical model: Check. Next step: 3D print.</p><p><a href="https://swiss.social/tags/moon" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>moon</span></a> <a href="https://swiss.social/tags/sun" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>sun</span></a> <a href="https://swiss.social/tags/eclipse" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>eclipse</span></a> <a href="https://swiss.social/tags/antiquity" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>antiquity</span></a> <a href="https://swiss.social/tags/archaeology" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>archaeology</span></a> <a href="https://swiss.social/tags/astronomy" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>astronomy</span></a> <a href="https://swiss.social/tags/archaeoastronomy" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>archaeoastronomy</span></a> <a href="https://swiss.social/tags/greece" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>greece</span></a> <a href="https://swiss.social/tags/babylon" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>babylon</span></a> <a href="https://swiss.social/tags/mathematics" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>mathematics</span></a> <a href="https://swiss.social/tags/physics" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>physics</span></a> <a href="https://swiss.social/tags/astrophysics" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>astrophysics</span></a> <a href="https://swiss.social/tags/mechanics" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>mechanics</span></a> <a href="https://swiss.social/tags/simulation" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>simulation</span></a> <a href="https://swiss.social/tags/opendata" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>opendata</span></a> <a href="https://swiss.social/tags/openglam" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>openglam</span></a> <a href="https://swiss.social/tags/glamhack" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>glamhack</span></a></p>
franco_vazza<p>Frogs are often in physics experiment, for some reason.<br>After I mentioned this last week:<br><a href="https://mastodon.social/@franco_vazza/114279078080329767" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">mastodon.social/@franco_vazza/</span><span class="invisible">114279078080329767</span></a></p><p>here is another frog <a href="https://mastodon.social/tags/physics" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>physics</span></a> optical experiment</p><p><a href="https://mastodon.social/tags/astrodon" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>astrodon</span></a> <a href="https://mastodon.social/tags/science" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>science</span></a></p>
SwissNationalScienceFoundation<p>📢 Discover the lesser-known symptoms of <a href="https://social.anoxinon.de/tags/Parkinson" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Parkinson</span></a>'s disease and find out what <a href="https://social.anoxinon.de/tags/physics" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>physics</span></a> and <a href="https://social.anoxinon.de/tags/cooking" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>cooking</span></a> have in common. The SNSF is supporting 33 new projects as part of <a href="https://social.anoxinon.de/tags/Agora" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Agora</span></a> to bridge the gap between scientists and society.</p><p><a href="https://sohub.io/vfyx" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="">sohub.io/vfyx</span><span class="invisible"></span></a></p>
Rowan Brad Quni<p>We are essentially still counting fingers to understand <a href="https://mstdn.science/tags/physics" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>physics</span></a>. Does it not make more sense to measure physical reality by inherent geometric ratios that are as close as anything to a <a href="https://mstdn.science/tags/math" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>math</span></a> of the <a href="https://mstdn.science/tags/universe" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>universe</span></a>?</p><p><a href="https://qnfo.org/releases/2025/Geometric+Physics" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">qnfo.org/releases/2025/Geometr</span><span class="invisible">ic+Physics</span></a></p><p><a href="https://mstdn.science/tags/science" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>science</span></a> <a href="https://mstdn.science/tags/education" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>education</span></a></p>
Brains Matter<p>String Theorists Say Black Holes Are Multidimensional String ‘Supermazes’ <a href="https://www.scientificamerican.com/article/string-theorists-say-black-holes-are-multidimensional-string-supermazes/" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://www.</span><span class="ellipsis">scientificamerican.com/article</span><span class="invisible">/string-theorists-say-black-holes-are-multidimensional-string-supermazes/</span></a> <a href="https://mastodonapp.uk/tags/stringtheory" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>stringtheory</span></a> <a href="https://mastodonapp.uk/tags/physics" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>physics</span></a> <a href="https://mastodonapp.uk/tags/science" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>science</span></a> <a href="https://mastodonapp.uk/tags/STEM" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>STEM</span></a> <a href="https://mastodonapp.uk/tags/blackholes" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>blackholes</span></a> <a href="https://mastodonapp.uk/tags/astronomy" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>astronomy</span></a></p>
Mx Verda<p>A physicist explains ground states: <br>Everything is trying to chill, gets stressed out when it can't get space to itself, and when everyone in a crowd calms the fuck down, magic can happen. <br><a href="https://en.wikipedia.org/wiki/Ground_state" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">en.wikipedia.org/wiki/Ground_s</span><span class="invisible">tate</span></a> <a href="https://lgbtqia.space/tags/physics" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>physics</span></a></p>
The Kid Should See This 🌈🪐✨<p>The <a href="https://universeodon.com/tags/physics" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>physics</span></a> of <a href="https://universeodon.com/tags/Earth" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Earth</span></a>'s tides connects our everyday beach experiences to the cosmic dance of celestial bodies. This TED-Ed <a href="https://universeodon.com/tags/animation" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>animation</span></a> explains how the <a href="https://universeodon.com/tags/Moon" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Moon</span></a> and <a href="https://universeodon.com/tags/Sun" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Sun</span></a>'s gravitational pull creates those rhythmic rises and falls of <a href="https://universeodon.com/tags/ocean" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>ocean</span></a> <a href="https://universeodon.com/tags/water" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>water</span></a> we observe. 🌊🪐</p><p>What's fascinating is how these same tidal forces work across our solar system—squeezing and stretching <a href="https://universeodon.com/tags/Jupiter" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Jupiter</span></a> and <a href="https://universeodon.com/tags/Saturn" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Saturn</span></a>'s moons, creating hidden oceans beneath Europa's icy shell, and even powering Io's volcanoes.</p><p>👉 Learn more: <a href="https://thekidshouldseethis.com/post/how-do-tides-work-teded-video" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">thekidshouldseethis.com/post/h</span><span class="invisible">ow-do-tides-work-teded-video</span></a></p><p><a href="https://universeodon.com/tags/TKSST" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>TKSST</span></a> <a href="https://universeodon.com/tags/video" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>video</span></a> <a href="https://universeodon.com/tags/astronomy" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>astronomy</span></a> <a href="https://universeodon.com/tags/history" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>history</span></a> <a href="https://universeodon.com/tags/math" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>math</span></a> <a href="https://universeodon.com/tags/physics" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>physics</span></a> <a href="https://universeodon.com/tags/science" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>science</span></a> <a href="https://universeodon.com/tags/space" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>space</span></a> <a href="https://universeodon.com/tags/stars" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>stars</span></a></p>
blaue_Fledermaus<p><a href="https://mstdn.io/tags/quantumPhysics" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>quantumPhysics</span></a> question: does anything interesting happen when doing quantum entanglement to a radioactive particle?</p><p><a href="https://mstdn.io/tags/physics" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>physics</span></a> <a href="https://mstdn.io/tags/askFedi" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>askFedi</span></a> <a href="https://mstdn.io/tags/askScience" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>askScience</span></a></p>
Mx Verda<p><a href="https://www.youtube.com/@PhysicsExplainedVideos/playlists" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://www.</span><span class="ellipsis">youtube.com/@PhysicsExplainedV</span><span class="invisible">ideos/playlists</span></a></p><p><a href="https://lgbtqia.space/tags/physics" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>physics</span></a> <a href="https://lgbtqia.space/tags/learn" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>learn</span></a> <a href="https://lgbtqia.space/tags/YesYouCan" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>YesYouCan</span></a></p>
Eray Zesen<p><a href="https://mastodon.gamedev.place/tags/QuarkPhysics" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>QuarkPhysics</span></a> is a physics engine built for 2D games, offering rigid, soft, and various other physics dynamics all in one package. It has a smooth workflow and solid integration with the <a href="https://mastodon.gamedev.place/tags/GodotEngine" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>GodotEngine</span></a> — an ecosystem I’m also part of. It receives frequent updates and is actively maintained.<br>Github: <a href="https://github.com/erayzesen/godot-quarkphysics" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">github.com/erayzesen/godot-qua</span><span class="invisible">rkphysics</span></a></p><p><a href="https://mastodon.gamedev.place/tags/gamedev" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>gamedev</span></a> <a href="https://mastodon.gamedev.place/tags/games" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>games</span></a> <a href="https://mastodon.gamedev.place/tags/indiedev" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>indiedev</span></a> <a href="https://mastodon.gamedev.place/tags/programming" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>programming</span></a> <a href="https://mastodon.gamedev.place/tags/physics" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>physics</span></a></p>
Andrew D. Hwang<p>While looking for something else, I recently came across a bit of physics memorabilia, a poster for a lecture at UC Berkeley by Hans Bethe. The physical sciences lecture hall was overflowing. What stays in memory are (i) Bethe's energy unit for a supernova, the "foe" for (ten to the) fifty-one ergs, and the fact that neutrino pressure (!!) is substantially responsible for blowing off the collapsing star's outer layers.</p><p><a href="https://mathstodon.xyz/tags/Physics" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Physics</span></a> <a href="https://mathstodon.xyz/tags/Astrophysics" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Astrophysics</span></a> <a href="https://mathstodon.xyz/tags/Math" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Math</span></a></p>
AllanICarswellObservatoryJoin us this Wednesday, April 9th, for an exciting evening of astronomy at the Allan I. Carswell Observatory! We are hosting an observatory tour where guests will have a chance to explore the inside of our incredible 1m and 60cm telescope domes.<br>
Bonus: If the skies are clear, we’ll set up our 1m telescope for live observing!<br>
<br>
Date: Wednesday, April 9, 2025<br>
Time: 7:30 – 9:30 PM ET<br>
Location: Petrie Science and Engineering Building, 3rd Floor<br>
Get your free tickets here: <a href="https://www.zeffy.com/en-CA/ticketing/allan-i-carswell-observatory-tour-april-9th--2025" rel="nofollow noopener noreferrer" target="_blank">https://www.zeffy.com/en-CA/ticketing/allan-i-carswell-observatory-tour-april-9th--2025</a><br>
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<a href="https://pixelfed.social/discover/tags/Astronomy?src=hash" class="u-url hashtag" rel="nofollow noopener noreferrer" target="_blank">#Astronomy</a> <a href="https://pixelfed.social/discover/tags/Astronomer?src=hash" class="u-url hashtag" rel="nofollow noopener noreferrer" target="_blank">#Astronomer</a> <a href="https://pixelfed.social/discover/tags/Space?src=hash" class="u-url hashtag" rel="nofollow noopener noreferrer" target="_blank">#Space</a> <a href="https://pixelfed.social/discover/tags/YorkU?src=hash" class="u-url hashtag" rel="nofollow noopener noreferrer" target="_blank">#YorkU</a> <a href="https://pixelfed.social/discover/tags/Observatory?src=hash" class="u-url hashtag" rel="nofollow noopener noreferrer" target="_blank">#Observatory</a> <a href="https://pixelfed.social/discover/tags/AllanICarswellObservatory?src=hash" class="u-url hashtag" rel="nofollow noopener noreferrer" target="_blank">#AllanICarswellObservatory</a> <a href="https://pixelfed.social/discover/tags/Stargazing?src=hash" class="u-url hashtag" rel="nofollow noopener noreferrer" target="_blank">#Stargazing</a> <a href="https://pixelfed.social/discover/tags/Telescope?src=hash" class="u-url hashtag" rel="nofollow noopener noreferrer" target="_blank">#Telescope</a> <a href="https://pixelfed.social/discover/tags/Planets?src=hash" class="u-url hashtag" rel="nofollow noopener noreferrer" target="_blank">#Planets</a> <a href="https://pixelfed.social/discover/tags/Stars?src=hash" class="u-url hashtag" rel="nofollow noopener noreferrer" target="_blank">#Stars</a> <a href="https://pixelfed.social/discover/tags/Science?src=hash" class="u-url hashtag" rel="nofollow noopener noreferrer" target="_blank">#Science</a> <a href="https://pixelfed.social/discover/tags/Physics?src=hash" class="u-url hashtag" rel="nofollow noopener noreferrer" target="_blank">#Physics</a> <a href="https://pixelfed.social/discover/tags/Toronto?src=hash" class="u-url hashtag" rel="nofollow noopener noreferrer" target="_blank">#Toronto</a> <a href="https://pixelfed.social/discover/tags/YorkUObservatory?src=hash" class="u-url hashtag" rel="nofollow noopener noreferrer" target="_blank">#YorkUObservatory</a> <a href="https://pixelfed.social/discover/tags/ClearSkies?src=hash" class="u-url hashtag" rel="nofollow noopener noreferrer" target="_blank">#ClearSkies</a> <a href="https://pixelfed.social/discover/tags/Tour?src=hash" class="u-url hashtag" rel="nofollow noopener noreferrer" target="_blank">#Tour</a> <a href="https://pixelfed.social/discover/tags/FreeEvents?src=hash" class="u-url hashtag" rel="nofollow noopener noreferrer" target="_blank">#FreeEvents</a> <a href="https://pixelfed.social/discover/tags/FamilyFriendly?src=hash" class="u-url hashtag" rel="nofollow noopener noreferrer" target="_blank">#FamilyFriendly</a> <a href="https://pixelfed.social/discover/tags/ScienceOutreach?src=hash" class="u-url hashtag" rel="nofollow noopener noreferrer" target="_blank">#ScienceOutreach</a> <a href="https://pixelfed.social/discover/tags/Tour?src=hash" class="u-url hashtag" rel="nofollow noopener noreferrer" target="_blank">#Tour</a> <a href="https://pixelfed.social/discover/tags/AICO?src=hash" class="u-url hashtag" rel="nofollow noopener noreferrer" target="_blank">#AICO</a>
walfischbucht<p>As mentioned in TheGuardian:</p><p>April 08 2025- <br><a href="https://norden.social/tags/Physics" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Physics</span></a> of <a href="https://norden.social/tags/Fluids" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Fluids</span></a> 37, 043332 (2025)<br>Pour-over <a href="https://norden.social/tags/coffee" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>coffee</span></a>: Mixing by a water jet impinging on a granular bed with avalanche dynamics featured</p><p>- Special Collection: Kitchen Flows 2024-</p><p>Ernest Park, Margot Young, ;<br>Arnold J. T. M. Mathijssen </p><p><a href="https://pubs.aip.org/aip/pof/article-abstract/37/4/043332/3342795/Pour-over-coffee-Mixing-by-a-water-jet-impinging?redirectedFrom=fulltext" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">pubs.aip.org/aip/pof/article-a</span><span class="invisible">bstract/37/4/043332/3342795/Pour-over-coffee-Mixing-by-a-water-jet-impinging?redirectedFrom=fulltext</span></a></p>
Nicole Sharp<p><strong>Measuring Mucus by Dragging Dead Fish</strong></p><p>A fish‘s mucus layer is critical; it protects from pathogens, reduces drag in the water, and, in some cases, protects against predators. But little is known about how mucus could affect terrestrial locomotion in species like the northern snakehead, which can breathe out of the water and move across land. So researchers explored the snakehead’s mucus layer by measuring the force required to drag them (and two other non-terrestrial species) across different surfaces.</p><p>The team tested the same, freshly euthanized fish twice: once with its mucus layer intact and again once the mucus was washed off. Unsurprisingly, the fish’s friction was much lower with its mucus. But they also found that the snakehead was slipperier than either the scaled carp or the scale-free catfish. The biologists suggest that the snakehead could have evolved a slipperier mucus to help it move more easily on land, thereby extending the distance it can cover.</p><p>As a fluid dynamicist, I think fish mucus sounds like a great new playground for the rheologists among us. (Image and research credit: <a href="https://doi.org/10.1093/icb/icaf002" rel="nofollow noopener noreferrer" target="_blank">F. Lopez-Chilel and N. Bressman</a>; via <a href="https://www.popsci.com/environment/fish-mucus-study/?__readwiseLocation=" rel="nofollow noopener noreferrer" target="_blank">PopSci</a>)</p><p><a rel="nofollow noopener noreferrer" class="hashtag u-tag u-category" href="https://fyfluiddynamics.com/tagged/biology/" target="_blank">#biology</a> <a rel="nofollow noopener noreferrer" class="hashtag u-tag u-category" href="https://fyfluiddynamics.com/tagged/fish/" target="_blank">#fish</a> <a rel="nofollow noopener noreferrer" class="hashtag u-tag u-category" href="https://fyfluiddynamics.com/tagged/fluid-dynamics/" target="_blank">#fluidDynamics</a> <a rel="nofollow noopener noreferrer" class="hashtag u-tag u-category" href="https://fyfluiddynamics.com/tagged/physics/" target="_blank">#physics</a> <a rel="nofollow noopener noreferrer" class="hashtag u-tag u-category" href="https://fyfluiddynamics.com/tagged/rheology/" target="_blank">#rheology</a> <a rel="nofollow noopener noreferrer" class="hashtag u-tag u-category" href="https://fyfluiddynamics.com/tagged/science/" target="_blank">#science</a></p>
Ethan Siegel<p>How has cosmology changed from 2000 to 2025?
At the turn of the century, we had evidence for a dark energy and dark matter dominated Universe, as the Standard Model of cosmology came into focus.
25 years later, it's starting to crack.
<a href="https://bigthink.com/starts-with-a-bang/cosmology-changed-2000-2025/" rel="nofollow noopener noreferrer" target="_blank">bigthink.com/starts-with-...</a>
<a class="hashtag" href="https://bsky.app/search?q=%23physics" rel="nofollow noopener noreferrer" target="_blank">#physics</a> <a class="hashtag" href="https://bsky.app/search?q=%23space" rel="nofollow noopener noreferrer" target="_blank">#space</a> <a class="hashtag" href="https://bsky.app/search?q=%23astro" rel="nofollow noopener noreferrer" target="_blank">#astro</a> <a class="hashtag" href="https://bsky.app/search?q=%23science" rel="nofollow noopener noreferrer" target="_blank">#science</a><br><br><a href="https://bigthink.com/starts-with-a-bang/cosmology-changed-2000-2025/" rel="nofollow noopener noreferrer" target="_blank">How has cosmology changed from...</a></p>
Jocelyn Etienne – research<p>I'm wondering: <a href="https://mathstodon.xyz/tags/physics" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>physics</span></a> makes a lot of use of <a href="https://mathstodon.xyz/tags/periodic" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>periodic</span></a> functions, in particular it is very useful to solve space-dependent equations in representative volumes with <a href="https://mathstodon.xyz/tags/periodicBoundaryConditions" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>periodicBoundaryConditions</span></a>.</p><p>However I've only seen it done with periodicity along orthogonal directions, aligned with a Cartesian frame.</p><p>Do you know of work, e.g. <a href="https://mathstodon.xyz/tags/PDE" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>PDE</span></a> resolution, in nonrectangular <a href="https://mathstodon.xyz/tags/periodicDomains" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>periodicDomains</span></a>? E.g., in a <a href="https://mathstodon.xyz/tags/tiled" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>tiled</span></a> hexagon? (but with a sufficiently generic setting, not exploiting regular hexagon symmetries) Even better if the periodicity parameters themselves are among the unknowns.</p><p>(Maybe I'm completely missing something obvious there, I'm in my first steps towards defining what I want - any random thought on the topic highly welcome!)</p><p><a href="https://mathstodon.xyz/tags/tiling" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>tiling</span></a> people?</p>
The Kid Should See This 🌈🪐✨<p>Bach's first prelude performed with boomwhackers by Les Objets Volants! 🎹🌈</p><p>These performers approach juggling through theater, visual arts, and <a href="https://universeodon.com/tags/math" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>math</span></a>—creating what they call "particle <a href="https://universeodon.com/tags/physics" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>physics</span></a> at human scale." Individual movements combine into complex patterns, much like atoms forming matter.</p><p>👉 Learn more: <a href="https://thekidshouldseethis.com/post/boomwhacker-bach-prelude-n1-aux-tubes-musicaux" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">thekidshouldseethis.com/post/b</span><span class="invisible">oomwhacker-bach-prelude-n1-aux-tubes-musicaux</span></a></p><p><a href="https://universeodon.com/tags/Music" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Music</span></a> <a href="https://universeodon.com/tags/Physics" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Physics</span></a> <a href="https://universeodon.com/tags/STEAM" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>STEAM</span></a> <a href="https://universeodon.com/tags/Science" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Science</span></a> <a href="https://universeodon.com/tags/TKSST" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>TKSST</span></a> <a href="https://universeodon.com/tags/France" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>France</span></a></p>
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