Stephen Sekula steve@hub.polari.us
Sudbury, ON, Canada
Husband; Professor of Physics at Queen's University; Research Group Manager at SNOLAB; dark matter hunter; neutrino watcher; writer and blogger; drummer; programmer; teacher; scientist; traveler; runner; gardener; open-source aficionado.
2023-02-04T17:21:29Z via p To: Public
From NASASun https://twitter.com/NASASun on Twitter: Eruptions on the Sun differ in how they look, how they travel, and even in the way they impact us here on Earth. Solar flares and coronal mass ejections (CMEs) both involve enormous explosions of energy – and at times may even occur simultaneously. https://twitter.com/NASASun/status/1621920326882934784/photo/12023-02-04T17:17:48Z via p To: Public
From NASASun on Twitter: Eruptions on the Sun differ in how they look, how they travel, and even in the way they impact us here on Earth. Solar flares and coronal mass ejections (CMEs) both involve enormous explosions of energy – and at times may even occur simultaneously. https://twitter.com/NASASun/status/1621920326882934784/photo/12023-02-04T17:15:03Z via p To: Public
From NASAJPL on Twitter: The #MarsHelicopter will attempt Flight 42 no earlier than Feb 4. Ingenuity is expected to reach 33 ft (10 m) and fly about 823 feet (251 m) northwest for approximately 137 seconds. https://mars.nasa.gov/technology/helicopter/status/437/flight-42-preview-by-the-numbers/ https://twitter.com/NASAJPL/status/1621562509726744579/photo/12023-02-04T17:14:09Z via p To: Public
From NYTScience on Twitter: If you haven't spotted the green comet yet, there will be more opportunities in the coming week. https://www.nytimes.com/article/green-comet-watch.html?smid=tw-nytimesscience&smtyp=cur2023-02-04T17:13:02Z via p To: Public
From NigelJTSmith on Twitter: A slug of radon in the @TRIUMFLab cloud chamber, showing the alpha decays from the chain (thick tracks). Radon is a challenging background for dark matter detectors as it leads to nuclear recoil backgrounds that mimic the signal. https://twitter.com/NigelJTSmith/status/1621711578939949058/video/12023-02-04T15:36:05Z via p To: Public
From NYTScience https://twitter.com/NYTScience on Twitter: If you haven't spotted the green comet yet, there will be more opportunities in the coming week. https://www.nytimes.com/article/green-comet-watch.html?smid=tw-nytimesscience2023-02-04T15:27:18Z via NavierStokes To: Public
From NYTScience https://twitter.com/NYTScience on Twitter: If you haven't spotted the green comet yet, there will be more opportunities in the coming week. https://www.nytimes.com/article/green-comet-watch.html?smid=tw-nytimesscience2023-02-04T15:26:43Z via p To: Public
From NYTScience on Twitter: If you haven't spotted the green comet yet, there will be more opportunities in the coming week. https://www.nytimes.com/article/green-comet-watch.html?smid=tw-nytimesscience&smtyp=cur2023-02-04T00:20:31Z via NavierStokes To: Public
2023-02-02T18:19:42Z via NavierStokes To: Public
2023-02-02T14:12:33Z via NavierStokes To: Public
From SNOLABscience https://twitter.com/SNOLABscience on Twitter: And if you can not listen in live tonight ... find it and listen anytime on the Ideas podcast channel here: https://www.cbc.ca/listen/live-radio/1-23/clip/159636972023-02-02T14:07:16Z via NavierStokes To: Public
From cbcideas https://twitter.com/cbcideas on Twitter: .@BenofTam takes us 2 km deep below the earth’s surface @SNOLABscience laboratory where he and fellow scientists hope to watch neutrinos finally explain the universe’s existence. https://www.cbc.ca/radio/ideas/particle-astrophysics-studying-origin-of-universe-1.6733153 @EveVavagiakis @Cornell @queensu @_TomHowell @NicolaLuksic #ghostparticles2023-02-02T13:08:12Z via NavierStokes To: Public
Had an awesome day in the underground lab yesterday working with PICO colleagues on one of the experiment's chiller systems. It has been almost 2 months since I went underground due to surface demands, so it took some re-acclimation. But as always, it was AMAZING. Working on a dark matter experiment 6800ft under the earth is quite an experience. For most people at SNOLAB, it's every day of their regular job. For the miners in the active mine around us, it's even more incredible.2023-02-02T13:01:49Z via NavierStokes To: Public
Had an awesome day in the underground lab yesterday working with PICO colleagues on one of the experiment's chiller systems. It has been almost 2 months since I went underground due to surface demands, so it took some re-acclimation. But as always, it was AMAZING. Working on a dark matter experiment 6800ft under the earth is quite an experience. For most people at SNOLAB, it's every day of their regular job. For the miners in the active mine around us, it's even more incredible.Got the 12V battery in the Chevy Volt replaced today. The folks at ...
2023-01-31T02:58:16Z via NavierStokes To: Public
Got the 12V battery in the Chevy Volt replaced today. The folks at Canadian Tire ran an electrical system test and said there did not appear to be any other issues (e.g. a faulty switch causing power to draw when the car is off). Replacing the 10-year-old battery seems to have fixed other "glitches" we noticed, like the console computer periodically suspending, then coming back online.Cautiously optimistic...2023-01-31T01:58:12Z via NavierStokes To: Public
Got the 12V battery in the Chevy Volt replaced today. The folks at Canadian Tire ran an electrical system test and said there did not appear to be any other issues (e.g. a faulty switch causing power to draw when the car is off). Replacing the 10-year-old battery seems to have fixed other "glitches" we noticed, like the console computer periodically suspending, then coming back online.Cautiously optimistic...2023-01-30T12:39:46Z via NavierStokes To: Public
When we left Texas to move to Sudbury, we had to leave some cherished plants behind. One of mine was an avocado tree I was growing indoors. I got my hands on a bunch of avocado pits after we settled into the new house and I am pleased to say I have two promising candidates for new trees. My goal is 5 or more so I can have 1-2 at the office and at least 2 in the house.I know they don’t fruit. But they are beautiful trees, and that’s what matters.2023-01-30T11:30:30Z via NavierStokes To: Public
2023-01-30T02:16:09Z via NavierStokes To: Public
From NatGeo https://twitter.com/NatGeo on Twitter: Using the James Webb Space Telescope, scientists have peered back into ancient galaxies that existed when the universe was only 300 to 400 million years old—presenting new mysteries about how the universe evolved https://www.nationalgeographic.com/magazine/article/nasa-jwst-most-ancient-galaxies-in-universe-coming-into-view?cmpid=org=ngp::mc=social::src=twitter::cmp=editorial::add=tw20230129science-ancientgalaxieslink2023-01-30T02:10:50Z via NavierStokes To: Public
From NatGeo on Twitter: Using the James Webb Space Telescope, scientists have peered back into ancient galaxies that existed when the universe was only 300 to 400 million years old—presenting new mysteries about how the universe evolved https://www.nationalgeographic.com/magazine/article/nasa-jwst-most-ancient-galaxies-in-universe-coming-into-view?cmpid=org=ngp::mc=social::src=twitter::cmp=editorial::add=tw20230129science-ancientgalaxieslink&linkId=199102037