2026-04-17T14:36:20Z https://yabu.me Santiago Andrés Triana https://yabu.me/npub1lu3py8xezxx5m842jjfznvzh67ajujm6mzqmq9uexgep5wnzwp0s7ys8nr https://fediscience.org/system/accounts/avatars/110/652/682/846/099/720/original/0779277fd4c64b4d.png https://fediscience.org/system/accounts/avatars/110/652/682/846/099/720/original/0779277fd4c64b4d.png https://yabu.me/nevent1qqsqkqfd6vxgykmwjvv03q3en6h669jy7rkg6s59f8snssskh70e38szyrljyysumygc6nv7422fy2ds2ltmktjt0tvgrvqhnyeryx36vfc97q895nq This is particularly lucid and insightful: <br/><br/><a href="https://ergosphere.blog/posts/the-machines-are-fine/">https://ergosphere.blog/posts/the-machines-are-fine/</a> 2026-04-03T06:11:14Z https://yabu.me/nevent1qqs0wd0380upzfvg0lhsxmmsjwdfrdjhkspn4najp2p97vw80z2ehdczyrljyysumygc6nv7422fy2ds2ltmktjt0tvgrvqhnyeryx36vfc973ywu7d #Silentsunday<br/> <img src="https://fediscience.org/system/media_attachments/files/116/312/183/005/071/197/original/2e8bbe1b73998774.jpeg"> <br/> 2026-03-29T11:21:08Z https://yabu.me/nevent1qqstzp907ll7x2car9g2enwz866f8uxk7wdzrxr28jrazd6jdxa3kzqzyrljyysumygc6nv7422fy2ds2ltmktjt0tvgrvqhnyeryx36vfc97nsglyg a 22° #halo around the #sun as seen from #Hoogstraten, #Belgium<br/> <img src="https://fediscience.org/system/media_attachments/files/116/278/194/334/459/352/original/9d24de389773b092.jpeg"> <br/> 2026-03-23T11:17:09Z https://yabu.me/nevent1qqswtrfcwe6qj6e5gy5n9k7r63r6zmgaczwcrrkxz9lgp29tvan4gagzyrljyysumygc6nv7422fy2ds2ltmktjt0tvgrvqhnyeryx36vfc97dry4wg Today the moon is three days old, still with plenty of earthshine.<br/><br/>#Astrophotography<br/> <img src="https://fediscience.org/system/media_attachments/files/116/275/230/851/534/804/original/4217b01b3494aa13.jpeg"> <br/> <img src="https://fediscience.org/system/media_attachments/files/116/275/232/336/081/278/original/491fc21f9ce3ed67.jpeg"> <br/> 2026-03-22T22:50:03Z https://yabu.me/nevent1qqsv8dyd8ly95c2n4h4tejmjg6na2mrue0hmlr5w23ddk3clflrdj8gzyrljyysumygc6nv7422fy2ds2ltmktjt0tvgrvqhnyeryx36vfc97unjtvt #Silentsunday<br/> <img src="https://fediscience.org/system/media_attachments/files/116/195/481/584/420/110/original/3ccdd762f861af7a.jpeg"> <br/> 2026-03-08T20:43:40Z https://yabu.me/nevent1qqs9cedukht88frlgzmjmy9v078njs8qn0eadr3ec39xfrsegqvt3fczyrljyysumygc6nv7422fy2ds2ltmktjt0tvgrvqhnyeryx36vfc97lqm420 Behold #sunspot AR4366. It&#39;s huuuge! About 10 Earth diameters from left to right. It is facing almost straight to Earth, so if it goes boom we&#39;ll get to see some auroras again!<br/>#astrophotography<br/> <img src="https://fediscience.org/system/media_attachments/files/116/013/420/915/855/697/original/3bc27931a829e48f.jpeg"> <br/> 2026-02-04T16:59:30Z https://yabu.me/nevent1qqs29rc9plfnely4sgjxxtjt77dwtxtgv5u0pdxsnc5vngvgh55p8aszyrljyysumygc6nv7422fy2ds2ltmktjt0tvgrvqhnyeryx36vfc97dn277m This brought tears to my eyes:<br/><br/><a href="https://youtu.be/eK3RkbpyNRw?si=ygahvyK7xJMZ9R1S&amp;t=192">https://youtu.be/eK3RkbpyNRw?si=ygahvyK7xJMZ9R1S&amp;t=192</a> 2026-01-25T20:26:48Z https://yabu.me/nevent1qqsylvw44mwm5tmamew72dltndxhj8vr8hk92nwwdhnc5dpxc40wyxszyrljyysumygc6nv7422fy2ds2ltmktjt0tvgrvqhnyeryx36vfc977jkwxh Yesterday&#39;s #aurora as seen from #Belgium.<br/> <img src="https://fediscience.org/system/media_attachments/files/115/935/307/967/064/110/original/7f67f36e69140c8d.jpeg"> <br/> <img src="https://fediscience.org/system/media_attachments/files/115/935/308/115/408/895/original/557c191f4001a525.jpeg"> <br/> <img src="https://fediscience.org/system/media_attachments/files/115/935/308/116/254/799/original/606753d6b88067b8.jpeg"> <br/> 2026-01-21T22:02:16Z https://yabu.me/nevent1qqsg9r6d8zdnyrk6y93376fukdgv5p5zgwgmtgdldrmpysjmepvfrjszyrljyysumygc6nv7422fy2ds2ltmktjt0tvgrvqhnyeryx36vfc97jthg7u On #science articles introducing new code:<br/><br/>[They] &#34;This code is great, this code is fantastic, this code is useful, you want this code&#34;<br/><br/>[Me] &#34;Ok, can I get it?&#34;<br/><br/>[They] &#34;ah no no, you misunderstood&#34; 2026-01-21T20:26:29Z https://yabu.me/nevent1qqszv93fnqt2tsdqfvk6p6yw3dmftaauf9ungcfd6e87h6997nty3mszyrljyysumygc6nv7422fy2ds2ltmktjt0tvgrvqhnyeryx36vfc97ttz4sv The #EGU2026 meeting in Vienna is coming soon! <br/><br/>Here are two sessions that I believe are of interest to planetary scientists:<br/><br/><a href="https://www.egu26.eu/session/55682">https://www.egu26.eu/session/55682</a><br/><br/><a href="https://www.egu26.eu/session/55874">https://www.egu26.eu/session/55874</a><br/><br/>Submit your abstract, deadline is tomorrow!<br/><br/>#Science #PlanetaryScience 2026-01-14T08:51:34Z https://yabu.me/nevent1qqsfz64czctjlrfpchsl7mdutahy9255x65s7yux0mtyxln8kwsdzfqzyrljyysumygc6nv7422fy2ds2ltmktjt0tvgrvqhnyeryx36vfc97s5hy65 #SilentSunday<br/> <img src="https://fediscience.org/system/media_attachments/files/115/875/776/494/493/638/original/c7ebb5351a30e146.png"> <br/> 2026-01-11T09:36:03Z https://yabu.me/nevent1qqst6yuxpfkmvjttyv0f6j4v8krdne7hpj7xsjgyrhzjyqhuf7pmhjczyrljyysumygc6nv7422fy2ds2ltmktjt0tvgrvqhnyeryx36vfc97k2nylx El gigante de piedra le canta a la luna.<br/><br/>#Moon #Suesca #Photography<br/> <img src="https://fediscience.org/system/media_attachments/files/115/812/016/029/995/505/original/21c242964a7f7dd2.jpeg"> <br/> 2025-12-31T03:22:59Z https://yabu.me/nevent1qqsyuckxcjwpfquqltk33r5tq33hqq2dqjqe044ma5v386v902rsqfgzyrljyysumygc6nv7422fy2ds2ltmktjt0tvgrvqhnyeryx36vfc97qtls4g #StreetArt in #Cartagena, #Colombia.<br/> <img src="https://fediscience.org/system/media_attachments/files/115/770/874/776/092/098/original/791de0f90ba842c0.png"> <br/> <img src="https://fediscience.org/system/media_attachments/files/115/770/874/879/336/353/original/8fbb69c2b464c6ed.png"> <br/> <img src="https://fediscience.org/system/media_attachments/files/115/770/874/985/190/593/original/355ffc139caecba6.png"> <br/> 2025-12-23T20:57:38Z https://yabu.me/nevent1qqsxgr4p8djc2srtznsz6xqu56xwvzmu52mfje0qzj8tvky37vzzuqgzyrljyysumygc6nv7422fy2ds2ltmktjt0tvgrvqhnyeryx36vfc97xke938 These pics from last night show some clouds very similar to nacreous clouds (above the dark cloud band in the pic). This is about 20 minutes after sunset. Normally #nacreous #clouds form at high latitudes, but this is from Cartagena, Colombia, at only 10.4º latitude North. Any expert around knows if this is possible? 🤔 <br/>#clouds #Atmosphere #science<br/> <img src="https://fediscience.org/system/media_attachments/files/115/761/316/707/086/719/original/37661e7ec5f87533.jpeg"> <br/> 2025-12-22T04:28:22Z https://yabu.me/nevent1qqsqf2720t4rp6h3lgq7kt84e25x8zkka8j0ttv6cdeswr967eswy8szyrljyysumygc6nv7422fy2ds2ltmktjt0tvgrvqhnyeryx36vfc9722p0kz There was a nice atmospheric inversion layer when my flight took off early in the morning from Paris. Here you see dense fog on the ground that doesn&#39;t even reach the top of the wind turbines. The ripples are gravity waves created by the wind turbine towers as the wind blows. 🌬️<br/> <img src="https://fediscience.org/system/media_attachments/files/115/755/526/869/886/748/original/a5ddcb4cf8ad7377.jpeg"> <br/> 2025-12-21T03:53:29Z https://yabu.me/nevent1qqswl9ferujk5dm0zygrxk5q4c4yhuzkjfv8x6dcn4wuzgc4udjjzrgzyrljyysumygc6nv7422fy2ds2ltmktjt0tvgrvqhnyeryx36vfc97ce7yfk Good morning Belgium!<br/> <img src="https://fediscience.org/system/media_attachments/files/115/643/076/502/947/411/original/5092f3a5f9239559.png"> <br/> 2025-12-01T07:15:25Z https://yabu.me/nevent1qqsfpt2d2r7x8cwzark4hx8w5y2wdk562qd6mpx4jth56pruu5x8f8gzyrljyysumygc6nv7422fy2ds2ltmktjt0tvgrvqhnyeryx36vfc97tn7aw9 Earth and planetary sciences folks, como to Vienna next year and tell us about your work! We have really cool session on the dynamics of planetary cores and subsurface oceans:<br/><br/><a href="https://meetingorganizer.copernicus.org/EGU26/session/55682">https://meetingorganizer.copernicus.org/EGU26/session/55682</a><br/><br/>Hope to see you there!<br/>#planetaryscience #science #egu26 2025-11-23T13:32:31Z https://yabu.me/nevent1qqsg4cdsyvzwwmwamcqjqh6kfc9wf6dn5qvulvdjsa53e5hxm3mmg9gzyrljyysumygc6nv7422fy2ds2ltmktjt0tvgrvqhnyeryx36vfc970lqlly This weekend the Belgian government decides on the space sector budget. A harsh reduction of about 50% is being debated, with my job and many other colleagues&#39; jobs at stake. #Belgium #science<br/><br/>https:/ /www.vrt.be/vrtnws/nl/2025/11/21/ruimtevaartsector-vreest-halvering-budget/ 2025-11-22T01:10:48Z https://yabu.me/nevent1qqspw466ed8ss7sfm64el8z7epz496smecrd9kt5lvm9vnru3aselhczyrljyysumygc6nv7422fy2ds2ltmktjt0tvgrvqhnyeryx36vfc97w0l54j In reply to <a href='/nevent1qqsy2mkuchq2a2nzzz3pyldr8d42snajrn4uucfy0gtgt0cmz8snjhsg04qq9'>nevent1q…4qq9</a><br/>_________________________<br/><br/>This is awesome, try it yourself!<br/><a href="https://homes.luddy.indiana.edu/ccshan/for/for.html">https://homes.luddy.indiana.edu/ccshan/for/for.html</a> 2025-11-09T00:14:07Z https://yabu.me/nevent1qqsy2mkuchq2a2nzzz3pyldr8d42snajrn4uucfy0gtgt0cmz8snjhszyrljyysumygc6nv7422fy2ds2ltmktjt0tvgrvqhnyeryx36vfc977yrdlv <img src="https://fediscience.org/system/media_attachments/files/115/516/839/690/881/363/original/856760b036fb1240.png"> <br/> 2025-11-09T00:12:41Z https://yabu.me/nevent1qqs0zaygwsjk5cxcwjeqwqu2tdtkzfe4syvuh4jy4a0l2myv68kuucqzyrljyysumygc6nv7422fy2ds2ltmktjt0tvgrvqhnyeryx36vfc97jws7rm #silentsunday<br/> <img src="https://fediscience.org/system/media_attachments/files/115/204/649/265/452/570/original/d76eb7cdc66a43c1.png"> <br/> <img src="https://fediscience.org/system/media_attachments/files/115/204/649/395/160/704/original/3280f36ae52fe550.png"> <br/> 2025-09-14T21:01:42Z https://yabu.me/nevent1qqsqmhhst450dth8vnngakp4wy5alhtctwl2n3snun9ps296juewyrgzyrljyysumygc6nv7422fy2ds2ltmktjt0tvgrvqhnyeryx36vfc97y3t3uv A peaceful Friday afternoon as seen from my office’s window at the Royal Observatory of Belgium in Brussels. Solar observations are still done regularly, as opposed to night sky observations which are impossible due to the high levels of light pollution.<br/><video controls width="100%" class="max-h-[90vh] bg-neutral-300 dark:bg-zinc-700"><source src="https://fediscience.org/system/media_attachments/files/115/162/508/928/394/910/original/d2e8fa3e1a55d8d3.mp4"></video><br/> 2025-09-07T10:25:51Z https://yabu.me/nevent1qqsdvue84uds0nth2yhkzmzuqv7eqmgwlg98a760j8rn3enl9xl58pqzyrljyysumygc6nv7422fy2ds2ltmktjt0tvgrvqhnyeryx36vfc972jml5r Let yourself be hypnotized by these #rotor #clouds. The wind blows over the #mountain ridge and the setting sun behind the ridge gives the background light. The #vortices are very coherent. This #timelapse compresses around 30 min. into 15 secs.<br/><br/>#Science<br/>#Physics<br/>#Atmosphere<br/><video controls width="100%" class="max-h-[90vh] bg-neutral-300 dark:bg-zinc-700"><source src="https://fediscience.org/system/media_attachments/files/114/961/423/735/298/909/original/1a2882f6f8c4e257.mp4"></video><br/> 2025-08-02T22:09:09Z https://yabu.me/nevent1qqsvyknavl045dzdv9483yj7uqh2vmzv478rvpvpefaq7ctlypv0cwqzyrljyysumygc6nv7422fy2ds2ltmktjt0tvgrvqhnyeryx36vfc975vh5gh #FensterFreitag<br/> <img src="https://fediscience.org/system/media_attachments/files/114/955/669/118/452/034/original/ef59a7eb72c95520.jpeg"> <br/> 2025-08-01T21:41:52Z https://yabu.me/nevent1qqs2z9l2mwax6peun07dzhumz3ymzrtm74k7mf8ay85u79rkpwwuj5gzyrljyysumygc6nv7422fy2ds2ltmktjt0tvgrvqhnyeryx36vfc9788d960 Rotor #clouds. They appear as a vortex parallel to the #mountain ridge. They form if a stable layer of air exists near the mountain top and the wind blows across the ridge. Very dangerous for aircraft.<br/><br/>#Science<br/>#Physics<br/>#Atmosphere<br/> <img src="https://fediscience.org/system/media_attachments/files/114/955/636/462/306/215/original/b09fba2d8a121ae9.jpeg"> <br/> 2025-08-01T21:32:01Z https://yabu.me/nevent1qqs0h0k4ad97cxnt6sn82mr9q235kwhntsrjjdfrufuywq0xh0p2c0czyrljyysumygc6nv7422fy2ds2ltmktjt0tvgrvqhnyeryx36vfc97d4dee3 The Weissmies mountain as the twilight sets in.<br/>#timelapse<br/>#photography<br/><video controls width="100%" class="max-h-[90vh] bg-neutral-300 dark:bg-zinc-700"><source src="https://fediscience.org/system/media_attachments/files/114/943/754/683/065/258/original/50a2e6edb9cb045d.mp4"></video><br/> 2025-07-30T19:16:15Z https://yabu.me/nevent1qqsx4pwpq9p03ugmnrt4w3639tlryjw75nr3ptemzlf90plyr4mfghszyrljyysumygc6nv7422fy2ds2ltmktjt0tvgrvqhnyeryx36vfc97jvlxh4 The Breithorn in the Binn valley, Switzerland, and the Milky Way in the background.<br/> <img src="https://fediscience.org/system/media_attachments/files/114/941/598/803/907/446/original/0c124f0e14af4b5a.png"> <br/> 2025-07-30T10:02:11Z https://yabu.me/nevent1qqs9efve4xv7582ceg03gka0y463xkxddsk3pquftv2sy3xfhk90y4szyrljyysumygc6nv7422fy2ds2ltmktjt0tvgrvqhnyeryx36vfc975vvxz8 The Bättlihorn, 2992 m high.<br/> <img src="https://fediscience.org/system/media_attachments/files/114/938/352/946/252/164/original/26784dde8dd44d80.png"> <br/> 2025-07-29T20:19:48Z https://yabu.me/nevent1qqsqqtlrfsepr7jr02utja29hhynj2tghu24f0yhwdzwy4pmkcfegkszyrljyysumygc6nv7422fy2ds2ltmktjt0tvgrvqhnyeryx36vfc97v7x7p8 Hay un mundo exterior y un mundo interior.<br/><video controls width="100%" class="max-h-[90vh] bg-neutral-300 dark:bg-zinc-700"><source src="https://fediscience.org/system/media_attachments/files/114/930/168/565/920/054/original/df672b95c98f8b98.mp4"></video><br/> 2025-07-28T09:36:25Z https://yabu.me/nevent1qqsdjtvgg4824upfcl37c2fa700klzdk5k6qhgg7ll6xltudhy8jeegzyrljyysumygc6nv7422fy2ds2ltmktjt0tvgrvqhnyeryx36vfc97qf9fvt An instant hides beauty.<br/> <img src="https://fediscience.org/system/media_attachments/files/114/915/507/087/648/039/original/49b65fdd08ebee26.png"> <br/> 2025-07-25T19:29:08Z https://yabu.me/nevent1qqs846xycsdg2x6tqadtkppghu804c40nuftcx9ggtaz0w24eshreqqzyrljyysumygc6nv7422fy2ds2ltmktjt0tvgrvqhnyeryx36vfc97xc4fq0 A tiny surface gravity wave. It’s no higher than 15cm. It is excited in place by an obstacle under the flow.<br/><video controls width="100%" class="max-h-[90vh] bg-neutral-300 dark:bg-zinc-700"><source src="https://fediscience.org/system/media_attachments/files/114/910/420/177/200/382/original/f695bc0cab05c1ad.mp4"></video><br/> 2025-07-24T21:54:18Z https://yabu.me/nevent1qqs2vj9kujv4dgjx74lwa9qf976xnfrszhlt8eypq0svh85frc3jf7qzyrljyysumygc6nv7422fy2ds2ltmktjt0tvgrvqhnyeryx36vfc97qd5e7g A globular star cluster.<br/>— From the series “Astrophysics in the forest”.<br/> <img src="https://fediscience.org/system/media_attachments/files/114/856/221/212/001/996/original/aff7ea23eee8c1d6.png"> <br/> 2025-07-15T08:08:48Z https://yabu.me/nevent1qqsrhn65vpzaw5dgrln223l4ljyx2zpam803yzz3wqdzhg2z49yju7gzyrljyysumygc6nv7422fy2ds2ltmktjt0tvgrvqhnyeryx36vfc973r72vg Pirineos.<br/> <img src="https://fediscience.org/system/media_attachments/files/114/853/629/321/390/786/original/1189c949a503fa17.jpeg"> <br/> 2025-07-14T21:10:43Z https://yabu.me/nevent1qqsv9k9kkuj90xhyxxuns7cp749wl0zzkskameynlmn4yhxyze8t8wczyrljyysumygc6nv7422fy2ds2ltmktjt0tvgrvqhnyeryx36vfc97ywj2ze <img src="https://fediscience.org/system/media_attachments/files/114/785/513/690/660/974/original/430fa52d1baf243d.png"> <br/> 2025-07-02T20:26:19Z https://yabu.me/nevent1qqsps5xsavgqyagt5ztxa8j5rfsqecmsv5chrkllce9re0ek9g8zepgzyrljyysumygc6nv7422fy2ds2ltmktjt0tvgrvqhnyeryx36vfc97405qgp In reply to <a href='/nevent1qqs04llxjesg2e459q8xl2vaq9epge0gx8a4yzmfjf02pdreh4x5dvqzuwxfu'>nevent1q…wxfu</a><br/>_________________________<br/><br/>can’t do cross eyed, but it works for me! Except Proxima Centauri appears to me as *behind* a layer of stars. “Distant Centauri” 😆 2025-07-01T06:47:48Z https://yabu.me/nevent1qqsfymgcu7z5ldfwggjdye0sfcmawlppny8augf48psh4v0vgrjrxmgzyrljyysumygc6nv7422fy2ds2ltmktjt0tvgrvqhnyeryx36vfc974f9ee4 In reply to <a href='/nevent1qqsgs9mtnk2vs5pn4khnhhsu98kg0239p5d30cht7advxe4gt3sknfcsmlqm0'>nevent1q…lqm0</a><br/>_________________________<br/><br/>Detail of the #sunspot group AR4115 (the big one), AR4114 (to the right of the big one), and AR4111 (almost at the limb).<br/>#Science #Astronomy<br/> <img src="https://fediscience.org/system/media_attachments/files/114/723/983/188/919/068/original/fbad7af7a2464d5f.png"> <br/> 2025-06-21T23:41:02Z https://yabu.me/nevent1qqsgs9mtnk2vs5pn4khnhhsu98kg0239p5d30cht7advxe4gt3sknfczyrljyysumygc6nv7422fy2ds2ltmktjt0tvgrvqhnyeryx36vfc97nvszzr Today&#39;s #SummerSolstice #Sun from my backyard.<br/>#AstroPhotography<br/> <img src="https://fediscience.org/system/media_attachments/files/114/723/858/547/412/321/original/fcd11940c77d83aa.jpg"> <br/> 2025-06-21T23:08:53Z https://yabu.me/nevent1qqsys4ftyke9clxk9sr44xs3stk488js0lnsta84w08ll79ay3wm3sgzyrljyysumygc6nv7422fy2ds2ltmktjt0tvgrvqhnyeryx36vfc97t4f26j The lowest altitude full #moon in decades, no more than 10° over the horizon. Did not make past the trees near my house. This is the result of a full moon near the summer #solstice combined with a &#34;major lunar standstill&#34;.<br/><a href="https://en.wikipedia.org/wiki/Lunar_standstill">https://en.wikipedia.org/wiki/Lunar_standstill</a><br/>#astronomy #science #StrawberryMoon<br/><video controls width="100%" class="max-h-[90vh] bg-neutral-300 dark:bg-zinc-700"><source src="https://fediscience.org/system/media_attachments/files/114/666/658/406/455/405/original/bb2d0c890e22ce6f.mp4"></video><br/> 2025-06-11T20:47:24Z https://yabu.me/nevent1qqsrzr2kykuvcl5veqwws2uvpn9r7c3s504fx66vtx8fggr6utj5vaqzyrljyysumygc6nv7422fy2ds2ltmktjt0tvgrvqhnyeryx36vfc97v940l7 Nah, too many clouds.<br/>#Science #Astronomy #Sun<br/><video controls width="100%" class="max-h-[90vh] bg-neutral-300 dark:bg-zinc-700"><source src="https://fediscience.org/system/media_attachments/files/114/637/623/323/583/241/original/a4cd5b133bc52ec0.mp4"></video><br/> 2025-06-06T17:38:23Z https://yabu.me/nevent1qqsxrdtfrfvweunpzfdz0wjfrx2578tlzxq9djw4memfmr0rfw7k3yqzyrljyysumygc6nv7422fy2ds2ltmktjt0tvgrvqhnyeryx36vfc97xdstdq The Sun rises behind me.<br/><video controls width="100%" class="max-h-[90vh] bg-neutral-300 dark:bg-zinc-700"><source src="https://fediscience.org/system/media_attachments/files/114/587/942/541/415/663/original/a82cb20094c1e87b.mp4"></video><br/> 2025-05-28T23:06:48Z https://yabu.me/nevent1qqsghhhly4etfz8hywdu8rv5tkclr4j76tlun9rt305mm0z6vk46cfgzyrljyysumygc6nv7422fy2ds2ltmktjt0tvgrvqhnyeryx36vfc979srk2q #Antwerpen<br/> <img src="https://fediscience.org/system/media_attachments/files/114/462/968/184/238/926/original/3b21287c2dda44e1.jpeg"> <br/> 2025-05-06T21:22:35Z https://yabu.me/nevent1qqsxfqhj8ktgxzduh6hdzjyx9k2795u0taxdjp67jk7t4ghdkvgt66gzyrljyysumygc6nv7422fy2ds2ltmktjt0tvgrvqhnyeryx36vfc974fcrua So long #EGU25 and thanks for all the fish,<br/> <img src="https://fediscience.org/system/media_attachments/files/114/439/445/253/305/002/original/564f9229047dd182.png"> <br/> <img src="https://fediscience.org/system/media_attachments/files/114/439/445/714/845/713/original/747c9b742bc78290.png"> <br/> 2025-05-02T17:36:34Z https://yabu.me/nevent1qqsg7haklsmwru5cdnsxnn4acwr0udm4dzefe8e2f3qjyp88ce0jy6gzyrljyysumygc6nv7422fy2ds2ltmktjt0tvgrvqhnyeryx36vfc976rd3z6 #EGU25<br/> <img src="https://fediscience.org/system/media_attachments/files/114/426/934/586/680/152/original/4c24dd7e952647fe.png"> <br/> 2025-04-30T12:34:27Z https://yabu.me/nevent1qqsfucdgv4as9lqngxvknsleh2f8e7rapd3aptf3p99rnd2xnt8eckqzyrljyysumygc6nv7422fy2ds2ltmktjt0tvgrvqhnyeryx36vfc97fzgean <img src="https://fediscience.org/system/media_attachments/files/114/372/165/020/703/797/original/21804dcdb3a1b683.png"> <br/> 2025-04-20T20:25:45Z https://yabu.me/nevent1qqswa0rwmkx8hldnhzelamjgsjcx9tfhng2w9n544uypxw6zc9vhd5gzyrljyysumygc6nv7422fy2ds2ltmktjt0tvgrvqhnyeryx36vfc97r5uunr Here’s to my 666 followers.<br/> <img src="https://fediscience.org/system/media_attachments/files/114/366/620/834/354/027/original/54eb7052137b4ea0.png"> <br/> 2025-04-19T21:01:30Z https://yabu.me/nevent1qqs9gavff5lykrajc5758gmeuek7r6c02ha52q8qd0ra9j6hdvs04lczyrljyysumygc6nv7422fy2ds2ltmktjt0tvgrvqhnyeryx36vfc97x703km #Sunspot groups AR4055 (bottom) and AR4058 (top) yesterday as they rotate out of view and approach the West solar limb. #Solar cycle 25 is just past its activity maximum. #science #Astronomy #astrophotography<br/> <img src="https://fediscience.org/system/media_attachments/files/114/330/105/707/616/186/original/237e55b44972c61a.png"> <br/> 2025-04-13T10:11:02Z https://yabu.me/nevent1qqsttfu5nv4wfd4w3v5gykp5uvewafl69y4597vvcaxhmha7kecje2szyrljyysumygc6nv7422fy2ds2ltmktjt0tvgrvqhnyeryx36vfc97w4mysj Our work on electromagnetic boundary conditions is out!<br/>#science #physics #whataboutmagneticfields <br/><br/><a href="https://agupubs.onlinelibrary.wiley.com/doi/10.1029/2024GL113585">https://agupubs.onlinelibrary.wiley.com/doi/10.1029/2024GL113585</a><br/> <img src="https://fediscience.org/system/media_attachments/files/114/301/135/822/460/825/original/94fb0e758166949d.png"> <br/> 2025-04-08T07:22:29Z https://yabu.me/nevent1qqsxdc09erufww2z588vdzc5vk8uhhtns4f3w2yqsf85m7th6rr05pqzyrljyysumygc6nv7422fy2ds2ltmktjt0tvgrvqhnyeryx36vfc97c7rttr A short story <br/><br/>Me: looks around “wtf”<br/>Around: THE FUCK<br/>Me: WTF I want out<br/>Me, calmly: “Exit game”<br/>[Crickets, then THE FUCK]<br/>Me: “EXIT GAAAME!”<br/>Around: THE FUCK, THE FUCK<br/>Me: FUUUUUUUUUCK! 2025-03-19T20:13:34Z https://yabu.me/nevent1qqs09fsnygkavevzgrpmz7vg4w4ps4mv242z5y6qs0fdzjpm8ah62pqzyrljyysumygc6nv7422fy2ds2ltmktjt0tvgrvqhnyeryx36vfc977u7pnx The #moon a few nights ago<br/> <img src="https://fediscience.org/system/media_attachments/files/114/156/670/572/877/788/original/a5e9c7f8f4bcff3a.png"> <br/> 2025-03-13T19:03:48Z https://yabu.me/nevent1qqsryf68jpjz4uw74kp50vsap32ca9phenfxvqgamlhzm24qc8rcnvqzyrljyysumygc6nv7422fy2ds2ltmktjt0tvgrvqhnyeryx36vfc976v33a5 Got a new telescope (92mm CFF apochromat). This is its first light with the Rossette nebula. One frame, no processing, 120 secs exposure. The gas is being blown away from the stellar wind produced by young stars near the center. This nebula appears as large as the moon or more although is 5200 light-years away.<br/>#astronomy #astrophotography #science<br/> <img src="https://fediscience.org/system/media_attachments/files/114/149/018/125/187/569/original/63fff7c46bea73c1.png"> <br/> 2025-03-12T10:38:31Z https://yabu.me/nevent1qqs8xr666ae96spkzs2e77ucqm2hxk5zvsdt8c2vfv40xn0l9ce2cjszyrljyysumygc6nv7422fy2ds2ltmktjt0tvgrvqhnyeryx36vfc97au3ucz In reply to <a href='/nevent1qqsdfrvv526epxvderdhuhsfdkeepy0almaxy0shnw7jqaslulmvdsq5deyaf'>nevent1q…eyaf</a><br/>_________________________<br/><br/>these spots are typically Earth size in diameter. The small granules are about 1500 km in diameter. 2025-03-11T21:30:15Z https://yabu.me/nevent1qqsr2kex5xt2lttg526ztkn4hmmd7myxjs63ga02lgqzy5l8xnfemgczyrljyysumygc6nv7422fy2ds2ltmktjt0tvgrvqhnyeryx36vfc97techet In reply to <a href='/nevent1qqsrfnerh5zkpw2wdzfy0zf2txs0gfzuxk5qxyzrwuv5jfhqyx68mjsl2vfl2'>nevent1q…vfl2</a><br/>_________________________<br/><br/>And here is sunspot group AR4012, also from yesterday.<br/> <img src="https://fediscience.org/system/media_attachments/files/114/137/516/381/719/383/original/6620ce4ff2ac5210.png"> <br/> 2025-03-10T09:52:42Z https://yabu.me/nevent1qqsrfnerh5zkpw2wdzfy0zf2txs0gfzuxk5qxyzrwuv5jfhqyx68mjszyrljyysumygc6nv7422fy2ds2ltmktjt0tvgrvqhnyeryx36vfc97j0hcak The #Sun&#39;s surface. The #sunspot group is Active Region 4018 as seen yesterday through my #telescope. The granular texture is from the strong convective motion of the #solar #plasma, very much like the convective patterns we see in a pot of boiling water. #astrophotography<br/> <img src="https://fediscience.org/system/media_attachments/files/114/137/500/926/677/695/original/2c09984585cc6d80.png"> <br/> 2025-03-10T09:50:26Z https://yabu.me/nevent1qqsve0d0c0ek6mksvkls7l9vkcvt6z09jyfu0e3xzj95huyp6798kcgzyrljyysumygc6nv7422fy2ds2ltmktjt0tvgrvqhnyeryx36vfc97zmflu6 Goodbye Roberta Flack 🖤<br/><a href="https://www.youtube.com/watch?v=La8_flXOTrI&amp;ab_channel=RobertaFlack-Topic">https://www.youtube.com/watch?v=La8_flXOTrI&amp;ab_channel=RobertaFlack-Topic</a> 2025-02-24T20:39:34Z https://yabu.me/nevent1qqs902duhacqnlq5u4ez07920l6g4ylz4g0ftl6w6teu0xp3p6cqd8qzyrljyysumygc6nv7422fy2ds2ltmktjt0tvgrvqhnyeryx36vfc970a94pl This is not a window<br/> <img src="https://fediscience.org/system/media_attachments/files/114/048/568/617/411/893/original/36093476be93f460.jpeg"> <br/> 2025-02-22T16:51:39Z https://yabu.me/nevent1qqsvxedzcn0fyleh5ullg7ypemzufraccgx6uuhrpqqkjvdhrnw6l4gzyrljyysumygc6nv7422fy2ds2ltmktjt0tvgrvqhnyeryx36vfc97y50ld8 <img src="https://fediscience.org/system/media_attachments/files/113/961/997/880/129/550/original/1f4ec90f8df5b202.png"> <br/> 2025-02-07T09:54:48Z https://yabu.me/nevent1qqsvtcyg5vgnrye5cem70u8z3kgknex93pm24fn6uq37jg50u0avdmqzyrljyysumygc6nv7422fy2ds2ltmktjt0tvgrvqhnyeryx36vfc97lhukmg Also from a couple of nights ago: The Sea of Crises (Mare Crisium, left) and the Sea of Fecundity (Mare Fecunditatis, right). Two lunar plains formed by flooding of ancient craters with basaltic lava. #astrophotography #science #Moon<br/> <img src="https://fediscience.org/system/media_attachments/files/113/946/756/592/187/589/original/73fecb3a88b335da.png"> <br/> 2025-02-04T17:21:57Z https://yabu.me/nevent1qqsfexpv5u708maextt2qp7s3lvc3s0kkk7egt8qsjetc2sxtmevk7czyrljyysumygc6nv7422fy2ds2ltmktjt0tvgrvqhnyeryx36vfc97lz8y7l A moonscape from a couple of nights ago. Mare Fecunditatis is the smooth region towards the left, #crater Langrenus (132 km wide) is near the center, and crater Petavius (177 km wide) to the right. You can see the Messier craters in the middle of the Mare, probably formed by a low angle impact. #astrophotography #science #Moon<br/> <img src="https://fediscience.org/system/media_attachments/files/113/946/717/868/906/084/original/47a113d2b9885b27.png"> <br/> 2025-02-04T17:12:16Z https://yabu.me/nevent1qqsz33sem7p3m7w3v8xs8w2wu0m40d0xdgkdm7hymy8wlqkjtl4wuhczyrljyysumygc6nv7422fy2ds2ltmktjt0tvgrvqhnyeryx36vfc97u55ulj Flood #tide. This is a #timelapse of the Belgian coast compressing 5 hrs into 16 secs. Tides are caused mainly by the Moon&#39;s gravitational pull, and the energy dissipated by the tidal flow is taken from the Moon&#39;s orbital motion, making it go a bit slower, hence a bit further away every day.<br/><br/>As the #Moon moves to a higher orbit its <br/>#AngularMomentum actually increases. Therefore the Earth&#39;s angular momentum needs to decrease to keep the total Earth+Moon conserved. When the Moon formed a day was probably shorter than 10 hours.<br/><br/>#physics #science #PlanetaryScience<br/><video controls width="100%" class="max-h-[90vh] bg-neutral-300 dark:bg-zinc-700"><source src="https://fediscience.org/system/media_attachments/files/113/882/317/849/859/411/original/4fbb4bcaf1b353e1.mp4"></video><br/> 2025-01-24T08:17:29Z https://yabu.me/nevent1qqsqvrnfytrkxgr32n94r7wm08fwal699yc9njdnfd2m0vyps586klszyrljyysumygc6nv7422fy2ds2ltmktjt0tvgrvqhnyeryx36vfc97mnhmzg In reply to <a href='/nevent1qqsva8yqrcjylqsst2nlwmyw7wk6twevl8zlzznzv7ktmegrvewfjdczhj9mw'>nevent1q…j9mw</a><br/>_________________________<br/><br/>Thanks all for the exchange! now I think I understand a bit better the reason, but it&#39;s certainly not Rayleigh scattering according to my outdated intuition 😅 2025-01-15T22:41:55Z https://yabu.me/nevent1qqsvr3mazgjten500aa9lq5j62rj0947fudylugjwvnrynrxv6zz7pqzyrljyysumygc6nv7422fy2ds2ltmktjt0tvgrvqhnyeryx36vfc977kxkwp In reply to <a href='/nevent1qqs0c7rvv0tzzt9ala47699ts9v4qhn86qpneh0fdet94jjxrwkpxyqw589dh'>nevent1q…89dh</a><br/>_________________________<br/><br/>indeed, its almost linear. If the telescope&#39;s aperture is smaller than r₀ then it&#39;s diffraction what limits the resolution (directly dependent on the aperture), but if it is larger then it&#39;s the atmospheric turbulence (independent of the aperture). In practice we use the &#34;lucky imaging&#34; technique where we take images and simply wait until r₀ reduces enough to have a sharp enough image (or part of an image). It seems that -even if linear- every little bit helps. 2025-01-15T22:33:02Z https://yabu.me/nevent1qqsvkzc2dvc9x3dga2a4qf9067ncnxfe3s9cuqq5m83qtnkx7f0h3uczyrljyysumygc6nv7422fy2ds2ltmktjt0tvgrvqhnyeryx36vfc97glpvpu In reply to <a href='/nevent1qqsrk55jfwnvhmqdmtm80uj80ngwkdrp3m5um47f3xudjar9fzwp3qcse4fpl'>nevent1q…4fpl</a><br/>_________________________<br/><br/>There&#39;s something called the Fried parameter to quantify the quality of optical transmission through the atmosphere (longer wavelenghts are better), but I think @jaztrophysicist and @midendian are right, this is not related to Rayleigh scattering according to wikipedia!<br/><a href="https://en.wikipedia.org/wiki/Fried_parameter">https://en.wikipedia.org/wiki/Fried_parameter</a> 2025-01-15T22:04:45Z https://yabu.me/nevent1qqsvxkndyl62nnh4asdr6czj44fag36lvwsf037mclkys9vv7nng7qszyrljyysumygc6nv7422fy2ds2ltmktjt0tvgrvqhnyeryx36vfc978ut5nt Jupiter and its moon Europa eclipsing a couple of nights ago. Io towards the top right.<br/>#astrophotography #Jupiter<br/> <img src="https://fediscience.org/system/media_attachments/files/113/834/527/749/963/187/original/34c29fb76262258e.jpeg"> <br/> 2025-01-15T21:41:33Z https://yabu.me/nevent1qqsfek746r5qp2f3p5ny6z3mg5vh9deadxw80dyy095l83x3c94thcgzyrljyysumygc6nv7422fy2ds2ltmktjt0tvgrvqhnyeryx36vfc97u47c0m In reply to <a href='/nevent1qqswzz9stgycl7dpq0syjcva6cm2u3hgm7f5xny2mgygwffkwq93ddg6v38a9'>nevent1q…38a9</a><br/>_________________________<br/><br/>thanks! this is probably the best I can do with a 210mm aperture scope. Craters just a few kilometers wide can be resolved. 2025-01-15T21:33:07Z https://yabu.me/nevent1qqsgsxcegk4gx8ud94l7aklkhqlgy462lj92f2879mdhlf83dvadghczyrljyysumygc6nv7422fy2ds2ltmktjt0tvgrvqhnyeryx36vfc97njvkc4 In reply to <a href='/nevent1qqsf50f8n4my9saadrxmqx5araucntv2awmqf6eu2ykk8j0509ky27c6pfmc5'>nevent1q…fmc5</a><br/>_________________________<br/><br/>I think that is because longer (redder) wavelengths are less prone to scattering from molecules in the atmosphere. 2025-01-15T21:28:11Z https://yabu.me/nevent1qqspq3q528jzktc8tusxdhuwxgkxt80lyy4mfjvz9tmpykrsu6jut0qzyrljyysumygc6nv7422fy2ds2ltmktjt0tvgrvqhnyeryx36vfc97pel7dz Took some pics of the moon the other night. The craters Clavius, Gassendi, and Copernicus.<br/><br/>I used a Takahashi Mewlon 210 with a 2X TeleVue PowerMate. Camera is a ZWO ASI 533MM-Pro. A bandpass infrared filter was useful to reduce the effect of atmospheric turbulence.<br/><br/>#astrophotography #moon<br/> <img src="https://fediscience.org/system/media_attachments/files/113/834/365/078/390/287/original/5762c8bd94d690fa.jpeg"> <br/> <img src="https://fediscience.org/system/media_attachments/files/113/834/365/115/214/792/original/848a9bdd9ccf71f2.jpeg"> <br/> <img src="https://fediscience.org/system/media_attachments/files/113/834/365/115/533/405/original/4695df31a629117a.jpeg"> <br/> 2025-01-15T21:08:32Z https://yabu.me/nevent1qqsfcw74umq3sr6a876602prmwpe02zlffscyspq3vvmhcx5q7uwarqzyrljyysumygc6nv7422fy2ds2ltmktjt0tvgrvqhnyeryx36vfc973932pv &#34;Un sauce de cristal, un chopo de agua,<br/>un alto surtidor que el viento arquea,<br/>un árbol bien plantado mas danzante,<br/>un caminar de río que se curva,<br/>avanza, retrocede, da un rodeo<br/>y llega siempre:&#34;<br/><br/>- Octavio Paz, &#34;Piedra de Sol&#34; (fragmento)<br/><br/>#photography #poetry<br/><video controls width="100%" class="max-h-[90vh] bg-neutral-300 dark:bg-zinc-700"><source src="https://fediscience.org/system/media_attachments/files/113/688/022/092/312/935/original/4aad4b3c87c94196.mp4"></video><br/> 2024-12-21T00:42:58Z https://yabu.me/nevent1qqsxqe32uuxmp87hdmgzn7w0z6mpnlx9ckx7fw946xzezf3vqj0v2xgzyrljyysumygc6nv7422fy2ds2ltmktjt0tvgrvqhnyeryx36vfc97z0ewfp #America right now<br/><video controls width="100%" class="max-h-[90vh] bg-neutral-300 dark:bg-zinc-700"><source src="https://fediscience.org/system/media_attachments/files/113/434/971/956/566/125/original/9c6058bed0e26297.mp4"></video><br/> 2024-11-06T08:05:33Z https://yabu.me/nevent1qqsyl702rxen5lgmd7ck7f49u2pk7r3ut80w0dym99gpghz23g7nquqzyrljyysumygc6nv7422fy2ds2ltmktjt0tvgrvqhnyeryx36vfc97j8nshj In reply to <a href='/nevent1qqs2750m32etnqaxfzz252u8ldyplhgtgpdjl3truy97r5u270380rc54z486'>nevent1q…z486</a><br/>_________________________<br/><br/>local 2024-10-22T16:37:17Z https://yabu.me/nevent1qqs8qj923tqe0855rhnvkm0euvh46nfdqh3hllknzf6re365pad3pzgzyrljyysumygc6nv7422fy2ds2ltmktjt0tvgrvqhnyeryx36vfc97v3fz7q In reply to <a href='/nevent1qqswzftw8nq330q2kp7tdeqwq8kukm6y4csn3pau8vrywgz8a7s27uqu2s9sq'>nevent1q…s9sq</a><br/>_________________________<br/><br/>after sunset. Check this:<br/><a href="https://theskylive.com/planetarium?objects=sun-moon-c2023a3-mercury-venus-mars-jupiter-saturn-uranus-neptune-pluto&amp;localdata=50.8657664%7C4.3483136%7CBrussels%2C%20Belgium%7CEurope%2FBrussels%7C0&amp;obj=c2023a3&amp;h=17&amp;m=30&amp;date=2024-10-22#ra">https://theskylive.com/planetarium?objects=sun-moon-c2023a3-mercury-venus-mars-jupiter-saturn-uranus-neptune-pluto&amp;localdata=50.8657664%7C4.3483136%7CBrussels%2C%20Belgium%7CEurope%2FBrussels%7C0&amp;obj=c2023a3&amp;h=17&amp;m=30&amp;date=2024-10-22#ra</a>|16.15727137741806|dec|-10.309715765311113|fov|58 2024-10-22T14:02:16Z https://yabu.me/nevent1qqsxhmf30s3xeke9rl8uw9xsp4hdn3lnjc0n64ztw56vlh95arhk8jczyrljyysumygc6nv7422fy2ds2ltmktjt0tvgrvqhnyeryx36vfc97f8r6s9 Today is probably the only chance to see the #comet from Belgium (rain in the forecast for the rest of the week). But here it is! The one and only Tsuchinshan-ATLAS!<br/>#astronomy #Astrodon #astrophotography<br/><video controls width="100%" class="max-h-[90vh] bg-neutral-300 dark:bg-zinc-700"><source src="https://fediscience.org/system/media_attachments/files/113/319/345/032/307/561/original/7775f7fdc61018a5.mp4"></video><br/> 2024-10-16T22:06:38Z https://yabu.me/nevent1qqsfh3kh7j6nrk0p9l87z2tc68qlxdhrs0wtrwq9ry92vk8kmg3p3eqzyrljyysumygc6nv7422fy2ds2ltmktjt0tvgrvqhnyeryx36vfc973y6kdd Strolling around #Brussels 🤩<br/> <img src="https://fediscience.org/system/media_attachments/files/113/307/896/759/452/725/original/279299f6a4ce7ee6.png"> <br/> <img src="https://fediscience.org/system/media_attachments/files/113/307/896/917/316/642/original/81ada61f12e57bdf.png"> <br/> <img src="https://fediscience.org/system/media_attachments/files/113/307/897/109/306/108/original/0c00ed177ea91f41.png"> <br/> 2024-10-14T21:30:47Z https://yabu.me/nevent1qqstk8vj43kdnpwdgp0jl34vjpgkk5wkmd0hlvp2ydnfupn96d55kwgzyrljyysumygc6nv7422fy2ds2ltmktjt0tvgrvqhnyeryx36vfc977hr5zu The #aurora from #Belgium, rare sight! thanks to the #solar flare produced by the #sunspot #AR3848. A strong #geomagnetic storm is ongoing.<br/>#science<br/><video controls width="100%" class="max-h-[90vh] bg-neutral-300 dark:bg-zinc-700"><source src="https://fediscience.org/system/media_attachments/files/113/285/585/466/963/458/original/a9a0d8bee66a9219.mp4"></video><br/> 2024-10-10T22:59:02Z https://yabu.me/nevent1qqswpfapvkm09ccyd0gv8kjk72yjq4793ccjzj8ck0nc7tkvpytn26qzyrljyysumygc6nv7422fy2ds2ltmktjt0tvgrvqhnyeryx36vfc97r77w9r In reply to <a href='/nevent1qqspwknzq9pqyxgag5wprv7u6mx0v8mryam7n5q2cq9a992pjs2hvwqavcljl'>nevent1q…cljl</a><br/>_________________________<br/><br/>it’s a Mewlon 210 with a televue powermate 2x. The camera is a ZWO ASI 533MM Pro. I have a film filter in front of the telescope and a bandpass infrared filter right before the camera.<br/> <img src="https://fediscience.org/system/media_attachments/files/113/256/745/532/719/666/original/dcc894a9d800172a.png"> <br/> 2024-10-05T20:45:15Z https://yabu.me/nevent1qqsdvywm2nyhh8x7jvs6x5n2y3wk2m3v4szwfujrxmuh7t457ar9tkszyrljyysumygc6nv7422fy2ds2ltmktjt0tvgrvqhnyeryx36vfc97suld9w The #solar cycle 25 does not disappoint! Here some of the #sunspots today as imaged from my backyard. There&#39;s a chance of auroras thanks to the X-class flares from AR3842.<br/>#science #astronomy #astrophotography<br/> <img src="https://fediscience.org/system/media_attachments/files/113/256/497/360/532/320/original/18285781f5b0b2b3.jpg"> <br/> <img src="https://fediscience.org/system/media_attachments/files/113/256/497/427/063/581/original/3e8c5afad888756a.jpg"> <br/> <img src="https://fediscience.org/system/media_attachments/files/113/256/497/460/789/492/original/75cd9a78033e1477.jpg"> <br/> 2024-10-05T19:43:46Z https://yabu.me/nevent1qqsqchdphuspp75a5ecer38zuf7h42wrklhv0pvt9rmyz59stcnqyqszyrljyysumygc6nv7422fy2ds2ltmktjt0tvgrvqhnyeryx36vfc977pxsrk Lee waves. These are internal gravity #waves revealed by the #clouds. They are generated as slightly denser air parcels are pushed up (where the air is less dense) as the wind blows over a obstacle like a #mountain. Then, as the air parcel is heavier than its surroundings, it sinks and overshoots. That is how the wave #oscillation is started.<br/><br/>I shot this while in the #Pyrenees last week, a #timelapse condensing 5 minutes into 15 seconds.<br/><br/>#science #physics #atmosphere<br/><video controls width="100%" class="max-h-[90vh] bg-neutral-300 dark:bg-zinc-700"><source src="https://fediscience.org/system/media_attachments/files/113/158/855/750/116/594/original/18f682f74adac70e.mp4"></video><br/> 2024-09-18T13:56:13Z https://yabu.me/nevent1qqsqehlv406m09450axwf64djuspqw8mz0yshl9ugdjemzr2pzlgp0qzyrljyysumygc6nv7422fy2ds2ltmktjt0tvgrvqhnyeryx36vfc97mlqqlv #vortices and capillary waves can be seen easily thanks to light refraction on the bottom of this quiet #glacial stream in the #pyrenees.<br/>#fluiddynamics #physics #science<br/><video controls width="100%" class="max-h-[90vh] bg-neutral-300 dark:bg-zinc-700"><source src="https://fediscience.org/system/media_attachments/files/113/154/791/234/542/194/original/0ef8b8e2a6c41e00.mp4"></video><br/> 2024-09-17T20:36:52Z https://yabu.me/nevent1qqst29vs42l8pyqrh7cq4ctx8jvnesr2ya46398twmscnv2kcdxu07czyrljyysumygc6nv7422fy2ds2ltmktjt0tvgrvqhnyeryx36vfc97nzxq77 Shh! It’s gonna speak!<br/> <img src="https://fediscience.org/system/media_attachments/files/113/024/951/807/740/145/original/ee81f1717e9533a0.png"> <br/> 2024-08-25T22:13:31Z https://yabu.me/nevent1qqsw5e36h3704543tp3p5zsy5hn9xw4xjpnk8sexjp9lcxyp84x6xgczyrljyysumygc6nv7422fy2ds2ltmktjt0tvgrvqhnyeryx36vfc977dypql I made a circular von Kármán vortex street!<br/> <br/>[1/4] 🧵 <br/>#eddies #flowVisualization #fluidDynamics #fluidsAsArt #physics #science #diynamics<br/> <img src="https://fediscience.org/system/media_attachments/files/112/985/068/662/464/060/original/d65772554cd1fe69.jpeg"> <br/> 2024-08-18T21:13:04Z https://yabu.me/nevent1qqsyug09l8y4zyz8qr2umpg440df43sjr9unvqdc56dn0xryphtffhqzyrljyysumygc6nv7422fy2ds2ltmktjt0tvgrvqhnyeryx36vfc97kvn62f The #Sun these days has more than 300 #sunspots. The highest count in 20 years! In the pic is the largest of them, sunspot AR3780, near the center of the solar disc. This one is colossal in size, spanning about five or six Earth diameters. [1/3]🧵 <br/>#astrophysics #astronomy #astrodon #science #physics<br/> <img src="https://fediscience.org/system/media_attachments/files/112/939/566/537/129/187/original/55df3107ef4b1eb7.jpg"> <br/> 2024-08-10T20:31:13Z https://yabu.me/nevent1qqsvadgf8uglzllu2xycvhzdknm207a7zl6gsr7wawejmnqsmy9zsmszyrljyysumygc6nv7422fy2ds2ltmktjt0tvgrvqhnyeryx36vfc979tttvy Meet the gargantuan #sunspot AR3780, which just emerged into view. It may be a source of strong #solar flares and #auroras over the next few days.<br/><br/>#astrophotography #astronomy #science #astrodon<br/> <img src="https://fediscience.org/system/media_attachments/files/112/911/652/038/328/861/original/3b57bf1aff454357.png"> <br/> 2024-08-05T22:11:06Z https://yabu.me/nevent1qqsz3llk72sf7k27dppwjq4876g238w39psw72t8dga6tz5x26z8ptgzyrljyysumygc6nv7422fy2ds2ltmktjt0tvgrvqhnyeryx36vfc97nzp70v Around #solstice, the #sunlight of the setting Sun fills a room in my house. The door of that room has a small #keyhole that lets a bit of light go outside the room, projecting it onto a hallway wall. It becomes like a giant #CameraObscura. Here&#39;s a short #timelapse of todays&#39; #Sun at sunset projected on the wall.<br/><video controls width="100%" class="max-h-[90vh] bg-neutral-300 dark:bg-zinc-700"><source src="https://fediscience.org/system/media_attachments/files/112/662/446/076/717/575/original/18afe697a130bed9.mp4"></video><br/> 2024-06-22T21:58:12Z