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Notices by Stephen Sekula (steve@chirp.cooleysekula.net), page 3
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Ooh ooh ooh! One more thing! Join @ SNOLAB ’s Blaire Flynn and # DESY Laboratory’s Joseph Piergrossi for the new podcast, “Particle Mysteries: The Coldest Case”. https://www. interactions.org///dark-matter -day/podcast Besides the accelerated expansion of the universe and the universe’s actual birth, # DarkMatter is one of the oldest mysteries in the cosmos that humans have yet to solve. Take up the case with Blaire, Joseph, and their guests! # podcast # DarkMatterDay https://chirp.cooleysekula.net/attachment/bda38905381587aba5301bcf2dcc690c4dd0452b035f73c9a21a582e40f82515/view
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Let’s end # DarkMatterDay with a video of a single bubble nucleating in a # PICO40L dark matter bubble chamber. This is precisely the kind of behaviour that would result from # DarkMatter interacting with a detector like this. You expect a single, low-energy interaction nucleating a lone, isolated bubble. This is why it’s so critical to construct these with low radioisotope contamination, put the experiment deep underground, and still shield the hell out of it. https://chirp.cooleysekula.net/attachment/59ff680a667243a031d4b8b6de70fbceeba5b17a55c503e2880c84a2bd412799/view
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From VRubinObs@astrodon.social on Mastodon: What's mysterious, invisible, and permeates the Universe? That's right, dark matter! ....oh, and Halloween spirits too. Happy # DarkMatterDay and a spooky # Halloween , a day to celebrate the stuff we can't see 🌌🎃 At ~85% of the total matter in our Universe, dark matter a big mystery for scientists to solve. Learn how Rubin Observatory will change our understanding of dark matter at http:// rubinobservatory.org/explore/s cience-goals/dark-matter 📷: NASA/ESA
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From kellylepo@astrodon.social on Mastodon: Happy Halloween 🎃 Here are the pumpkins I carved this year: An active red dwarf star and its gas giant planet. I call it an exo-pumpkin. # pumpkin # JackOLantern # halloween # Astrodon # astronomy
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From kellylepo@astrodon.social on Mastodon: Happy Halloween 🎃 Here are my pumpkins that I carved in 2022, 2021, and 2020. The Pumpkin Pillars of Creation, the Pumpkin JWST Identifier, and the Pumpkin "Webb" mirror. # JWST # pumpkin # JackOLantern # halloween
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If audiobooks are more your style, explore # DarkMatter and # DarkEnergy with this reading of chapter 6 of "Reality in the Shadows", co-authored with Frank Blitzer and Jim Gates. https:// media.cooleysekula.net/w/mXjBq T2F55zdhvtERHcJsu # DarkMatterDay # Books # Writing
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Interested in the connections between # MachineLearning , # DeepLearning , and the dark # cosmos ? Check out my last lecture for my introductory physics class from the spring term of 2018, "Deep Learning the Dark Cosmos". https:// media.cooleysekula.net/w/7ghp3 HdivkueDrRmgzaigh # DarkMatterDay
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Happy # DarkMatterDay ! I will share some fare today relevant to this day. Enjoy the mystery of the unidentified matter that has shaped the # cosmos . Maybe you will even want to become engaged in solving the # mystery . There are no easy answers on the constituents of dark matter. Easy stuff was done long ago. :-) https://chirp.cooleysekula.net/attachment/11abb096c3e02dbe038a450f3c9fa9d994ba911c83c0a8f685b275a4bd5d3f17/view
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Got some lovely little hail pellets today (a few mm in diameter). https://chirp.cooleysekula.net/attachment/e29ee3ed51937ab1344be60092fe6008e9de13dfb23627a2e66440d883205c00/view
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From ec_euclid@astrodon.social on Mastodon: Attention # science # media and # journalists : # press event for release of the first full-colour images of the # ESAEuclid mission, Tuesday, 7. November. Registration deadline for media event at # ESOC (Darmstadt, Germany) and remote attendance is Friday 3. November: https://www. esa.int/Newsroom/Press_Release s/Media_Invitation_Euclid_mission_to_release_first_full-colour_images_of_the_cosmos_on_7_November # space # astrodon # astronomy # wisskom # scicom
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From coreyspowell@mastodon.social on Mastodon: For a dose of perspective: Even at the peak speed of the Parker Solar Probe (~180 km/sec), it would take more than 7,000 years to reach Alpha Centauri, the nearest star system. Interstellar distances are HUGE. # space # science # travel
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From AuthorHelp@social.authorhelp.uk on Mastodon: The first # FediBookFair is set for this coming weekend, 4th
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From Mastodon@mastodon.social on Mastodon: New # Mastodon for Android update comes with lists and a reworked home tab. We won't stop until it's the best social media app on Android! https:// blog.joinmastodon.org/2023/10/ mastodon-for-android-update/
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Absolutely incredible performance of "The Curious Incident". Anyone who can see this in # Sudbury absolutely should. Its run ends in a week. The cast even weathered an unexpected power bump at the theatre in the closing lines of the play with humour and grace. And I love seeing a good maths problem solved in real time. https://chirp.cooleysekula.net/attachment/1938b19c58021255c5a523088f0176494ccf344474aa9381a804ff6e456dcde7/view
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Enjoying a little treat before seeing "The Curious Incident of the Dog in the Night-Time" at the # Sudbury # Theatre . # OldRockCoffee https://chirp.cooleysekula.net/attachment/20f873270c8580ced23c84041d18a4e03ee1b722ebd112b28e0b23b6d4a79d13/view
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Yikes. You never realize how much, as a scientist, you travel for work until you are forced to confront your travel record. As part of our immigration process in # Canada , we have to provide 10 years of travel outside Canada and the US. My memory was thin. But I kept detailed records. In reviewing those records, I cannot believe how much I traveled for CERN-related activities. I had only 1 “tourism” trip in 10 years outside the US or Canada. No wonder I hate travel so much.
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From gutenberg_org@mastodon.social on Mastodon: English Mathematician John Wallis died # OTD in 1703. In 1657 Wallis published the Mathesis Universalis (“Universal Mathematics”), on algebra, arithmetic, and geometry, in which he further developed notation. He invented and introduced the symbol ∞ for infinity. He similarly used 1/∞ for an infinitesimal. John Wallis was a contemporary of Newton and one of the greatest intellectuals of the early renaissance of mathematics. via @ wikipedia and @Britannica # books # mathematics
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Sudbury's SNOLAB gets a $14M boost from provincial government https:// flip.it/L5AZ78
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# SNOLAB welcomes funding boost | SNOLAB https://www. snolab.ca/news/snolab-welcomes -funding-boost/ Really excited about this news from the Province of # Ontario !
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Had a lot of fun being interviewed on the # CBC # Sudbury "Morning North" program about # DarkMatter Day! I really enjoyed the questions ... I always have a lot of fun talking about the many aspects of scientific research, @ SNOLAB , and the mystery of dark matter. https://www. cbc.ca/listen/live-radio/1-41- morning-north/clip/16018940-while-celebrate-halloween-physicists-celebrating-dark-matter-day
Stephen Sekula
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