Public timeline, page 28

Notices

1. Stephen Sekula (steve@chirp.cooleysekula.net)'s status on Friday, 12-May-2023 20:32:29 UTC Stephen Sekula
   Among the many cool things about moving these towers to SNOLAB to put them underground for installation in SuperCDMS: the collaboration carefully planned the journey to minimize exposure to high levels of cosmic ray radiation. These are sensitive, cutting-edge instruments. https://t.co/E8jzjIlAwH
2. Stephen Sekula (steve@chirp.cooleysekula.net)'s status on Friday, 12-May-2023 19:50:19 UTC Stephen Sekula
   Had a nice walk by Lake Winnebago. # wisconsin https://chirp.cooleysekula.net/attachment/c9f499996c8d363f6e863bde535609afd7279a68b7c3b381bc78d9de239cb7b1/view
3. Stephen Sekula (steve@chirp.cooleysekula.net)'s status on Friday, 12-May-2023 16:25:17 UTC Stephen Sekula
   From evan@cosocial.ca on Mastodon: If you're at # OpenSourceSummitNorthAmerica today in Vancouver, and you're interested in # ClimateChange or # DataAggregation , please come see my talk on the # OpenClimateNetwork ! # OSSNA # OpenSourceSummit https:// sched.co/1K5GI
4. Stephen Sekula (steve@chirp.cooleysekula.net)'s status on Friday, 12-May-2023 16:20:18 UTC Stephen Sekula
   From evan@cosocial.ca on Mastodon: "Specification is not documentation." # EvanPoll # poll
5. Stephen Sekula (steve@chirp.cooleysekula.net)'s status on Friday, 12-May-2023 14:50:22 UTC Stephen Sekula
   It is a fantastic day out here along Lake Michigan. https://chirp.cooleysekula.net/attachment/eba840e8a3cd30b00294323b2a05bf657eababfff1e99f513554f3fc2c211083/view
   • ghostdancer likes this.
6. Stephen Sekula (steve@chirp.cooleysekula.net)'s status on Friday, 12-May-2023 14:40:18 UTC Stephen Sekula
   From mcnees@mastodon.social on Mastodon: Though Nightingale died in 1910, there is a wax cylinder recording of her voice made in 1890 by US Civil War veteran George Edward Gouraud. Colonel Gouraud was the British representative of the Edison Phonograph Company. You can listen to it here: https://www. youtube.com/watch?v=8PZaHp7mkq A
   • ghostdancer likes this.
7. Stephen Sekula (steve@chirp.cooleysekula.net)'s status on Friday, 12-May-2023 00:00:20 UTC Stephen Sekula
   Made it as far as Escanaba, MI today, and having a lovely time. https://chirp.cooleysekula.net/attachment/56830062b12e687fce6983de4e3b62e51fe3bf5c8b6820f174136f94250941f8/view
8. Stephen Sekula (steve@chirp.cooleysekula.net)'s status on Thursday, 11-May-2023 11:00:18 UTC Stephen Sekula
   From freyablekman@sciencemastodon.com on Mastodon: # CMSPaper 1216: The η (=eta) is a special particle.This paper finds a new way the η can decay: into four muons. This is important because it measures muon-photon interactions, and quite accurately at that. That is a precision test of theory predictions, including some inputs to the muonic magnetic dipole moment. These decays are very rare, and used specially designed new @ CMSexperiment triggers to collect this sample! http:// cms-results.web.cern.ch/cms-re sults/public-results/publications/BPH-22-003/index.html # science # particlephysics # cern # discovery # alttext
9. Stephen Sekula (steve@chirp.cooleysekula.net)'s status on Wednesday, 10-May-2023 23:32:46 UTC Stephen Sekula
   From ValerieH137 https://twitter.com/ValerieH137 on Twitter: #OnThisDay 51 years ago: moving the @Fermilab 15-foot bubble chamber. https://t.co/Dhh8hPDmVN https://chirp.cooleysekula.net/attachment/5a599ff1f667e00e23435016b3aa2f7ecc683c17c3d60c7ce77369e223329120/view
10. Stephen Sekula (steve@chirp.cooleysekula.net)'s status on Wednesday, 10-May-2023 23:31:30 UTC Stephen Sekula
    I was today years old when I helped to estimate the height of a leak in a cylindrical tank using measurements of fill height and leak rate. I was inspired to try this by my Honors Physics students from SMU, who, over many years, tried to estimate interesting things from limited data.
11. Stephen Sekula (steve@chirp.cooleysekula.net)'s status on Wednesday, 10-May-2023 22:45:18 UTC Stephen Sekula
    Looking forward to a few days of vacation with family in Wisconsin!
12. Stephen Sekula (steve@chirp.cooleysekula.net)'s status on Wednesday, 10-May-2023 00:55:22 UTC Stephen Sekula
    Here is a wide-angle shot looking down into the water shiield after concluding the fill today. The tank is about 110 inches in diameter and the water is 90 inches deep. I think this is just a thing of beauty, like dark matter detector meets warp core. The vessel in the center is the pressure vessel, which holds mineral oil. Inside the mineral oil is a set of jars filled with super-heated liquid freon. The freon is the dark matter target while the oil provides pressure to recompress the freon. https://chirp.cooleysekula.net/attachment/0f58cc086a7f71e4767899436e41be9e4a604d37b42a36a122e4078aadec381d/view
13. Stephen Sekula (steve@chirp.cooleysekula.net)'s status on Wednesday, 10-May-2023 00:50:20 UTC Stephen Sekula
    Had an absolutely excellent time again today in the underground laboratory at SNOLAB. Worked with the PICO team to put another ~6000 liters of water in the shield tank. Ran a little experiment over at HALO involving Newton’s Laws and Maxwell’s Equations. Scoped out some oxygen sensors for a summer research project. Oh, and had a great time streaming a sample loaded into the ultra-sensitive gamma ray counters in the Low Background Counting laboratory for the CAPSS Summer School participants!
14. Stephen Sekula (steve@chirp.cooleysekula.net)'s status on Wednesday, 10-May-2023 00:45:23 UTC Stephen Sekula
    From SNOLABscience https://twitter.com/SNOLABscience on Twitter: SNOLAB hopes to host new $400M international physics project https://www.cbc.ca/news/canada/sudbury/snolab-interational-experiment-1.6833404?__vfz=medium=sharebar
15. Stephen Sekula (steve@chirp.cooleysekula.net)'s status on Tuesday, 09-May-2023 20:45:20 UTC Stephen Sekula
    Now THOSE were the days. # GraduateSchool # UWMadison # FoundOnDesk https://chirp.cooleysekula.net/attachment/859453f638163d030c19120b989820f5196f1f5677fbd2e365fe0677df09b3d4/view
    • Bob Jonkman likes this.
16. Stephen Sekula (steve@chirp.cooleysekula.net)'s status on Tuesday, 09-May-2023 08:55:20 UTC Stephen Sekula
    Yesterday was a busy day! In addition to management activities, it was great to begin welcoming summer research students to # SNOLAB and to begin data quality “shifting” for # HALO . Also kept thinking (and calculating) about evaporation and other ways of losing water from the # PICO shield tank as we plan to continue filling the water shield.
17. Stephen Sekula (steve@chirp.cooleysekula.net)'s status on Tuesday, 09-May-2023 08:55:17 UTC Stephen Sekula
    A discussion about the outcome of an international summit on the future of “neutrinoless double beta decay” and the goal of attracting a next-generation tonne-scale experiment to SNOLAB. https://www. cbc.ca/listen/live-radio/1-41- morning-north/clip/15983256-sudburys-snolab-considered-400-million-us-dollar-experiment # MorningNorth # CBC # SNOLAB # 0vbb # neutrino # undergroundscience
18. Stephen Sekula (steve@chirp.cooleysekula.net)'s status on Monday, 08-May-2023 10:05:16 UTC Stephen Sekula
    We must pay graduate student researchers a living wage (The Globe and Mail (Ontario Edition)), May 08, 2023 https:// globe2go.pressreader.com/artic le/281758453625146
19. Stephen Sekula (steve@chirp.cooleysekula.net)'s status on Monday, 08-May-2023 01:56:33 UTC Stephen Sekula
    Also spent part of the weekend thinking a little about evaporation of water from the PICO shield tank. It was a very satisfying dive, even if I don’t trust the conclusions too much. That said, I am slightly more comfortable with the mathematics of evaporation rates than I was 24 hours ago.
20. Stephen Sekula (steve@chirp.cooleysekula.net)'s status on Monday, 08-May-2023 01:55:17 UTC Stephen Sekula
    What a lovely weekend. The weather was really nice on Saturday, so we could break in the patio with a cookout and some guest company! Today it rained, but it was cool and clear this evening and sunset was peaceful. I really needed this.