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#halleffect — Public Fediverse posts

Live and recent posts from across the Fediverse tagged #halleffect, aggregated by home.social.

  1. @melissawm The #Svalboard has magnetic keys, really light touch apparently & owners seem to think it is awesome - but rather pricy even in kit form: svalboard.com/

    Or are you thinking the more mainstream but still niche #HallEffect #MechanicalKeyboard designs? I'd like to try those too...

  2. Weekly Update from the Open Journal of Astrophysics – 27/09/2025

    It’s Saturday again, so it’s time for a summary of the week’s new papers at the Open Journal of Astrophysics. Since the last update we have published five new papers, which brings the number in Volume 8 (2025) up to 141, and the total so far published by OJAp up to 376.

    The first paper to report this week is “The Bispectrum of Intrinsic Alignments: Theory Modelling and Forecasts for Stage IV Galaxy Surveys” by Thomas Bakx (Utrecht U., NL), Alexander Eggemeier (U. Bonn, DE), Toshiki Kurita (MPA Garching, DE), Nora Elisa Chisari (Leiden U., NL) and Zvonimir Vlah (Ruđer Bošković Institute, Croatia). This paper was published on Monday 22nd September 2025 in the folder Cosmology and NonGalactic Astrophysics. It studies the bispectrum of intrinsic galaxy alignments, a possible source of systematic errors in extracting cosmological information from the analysis of weak lensing surveys.

    The overlay is here:

    You can make this larger by clicking on it.  The officially accepted version of this paper can be found on the arXiv here.

    The second paper this week, published on Tuesday 23rd September 2025 is “Reanalysis of Stage-III cosmic shear surveys: A comprehensive study of shear diagnostic tests” by Jazmine Jefferson (University of Chicago, USA) and 13 others for the LSST Dark Energy Science Collaboration. It is also in the folder Cosmology and NonGalactic Astrophysics; it describes diagnostic tests on three public shear catalogs (KiDS-1000, Year 3 DES-Y3 s, and Year 3 HSC-Y3); not all the surveys pass all the tests.

    The corresponding overlay is here:

    You can find the officially accepted version on arXiv here.

    The third one this week, published on Wednesday 24th September 2025 in the folder Astrophysics of Galaxies, is “Is feedback-free star formation possible?” by Andrea Ferrara, Daniele Manzoni, and Evangelia Ntormousi (all of the Scuola Normale Superiore, Pisa, Italy). This paper presents an argument that Lyman-alpha radiation pressure strongly limits star formation efficiency, even at solar metallicities, so that a feedback-free star formation phase is not possible without feedback. The overlay is here:

    You can find the officially-accepted version on arXiv here.

    Next we have “Microphysical Regulation of Non-Ideal MHD in Weakly-Ionized Systems: Does the Hall Effect Matter?” by Philip F. Hopkins (Caltech, USA), Jonathan Squire (U. Otago, New Zeland), Raphael Skalidis (Caltech) and Nadine H. Soliman (Caltech). This was also published on Wednesday 24th September 2025, but in the folder Earth and Planetary Astrophysics. It presents an improved treatment of non-ideal effects in magnetohydrodynamics, particularly the Hall effect, and a discussion of the implications for weakly-ionized astrophysical systems.

    The corresponding overlay is here:

     

    You can find the officially accepted version of this one on arXiv here.

    The fifth, and last, one for this week is “The Local Volume Database: a library of the observed properties of nearby dwarf galaxies and star clusters” by Andrew B. Pace (University of Virginia, USA). This one was published on Friday 26th September (i.e. yesterday) in the folder Astrophysics of Galaxies. It presents a catalogue of positional, structural, kinematic, chemical, and dynamical parameters for dwarf galaxies and star clusters in the Local Volume. The overlay is here:

    You can find the officially-accepted version of this paper on arxiv here.

     

    And that concludes the report for this week. I’ll post another update next Saturday.

    #arXiv240506026v2 #arXiv241107424v2 #arXiv250410009v2 #arXiv250503964v3 #arXiv250902566v2 #AstrophysicsOfGalaxies #bispectrum #cosmicShear #CosmologyAndNonGalacticAstrophysics #DarkEnergySurvey #DiamondOpenAccessPublishing #dwarfGalaxies #EarthAndPlanetaryAstrophysics #feedback #HallEffect #intrinsicAlignments #KIDS #LocalGroup #magnetohydrodynamics #OpenAccessPublishing #StarClusters #starFormation #weakGravitationalLensing

  3. Weekly Update from the Open Journal of Astrophysics – 27/09/2025

    It’s Saturday again, so it’s time for a summary of the week’s new papers at the Open Journal of Astrophysics. Since the last update we have published five new papers, which brings the number in Volume 8 (2025) up to 141, and the total so far published by OJAp up to 376.

    The first paper to report this week is “The Bispectrum of Intrinsic Alignments: Theory Modelling and Forecasts for Stage IV Galaxy Surveys” by Thomas Bakx (Utrecht U., NL), Alexander Eggemeier (U. Bonn, DE), Toshiki Kurita (MPA Garching, DE), Nora Elisa Chisari (Leiden U., NL) and Zvonimir Vlah (Ruđer Bošković Institute, Croatia). This paper was published on Monday 22nd September 2025 in the folder Cosmology and NonGalactic Astrophysics. It studies the bispectrum of intrinsic galaxy alignments, a possible source of systematic errors in extracting cosmological information from the analysis of weak lensing surveys.

    The overlay is here:

    You can make this larger by clicking on it.  The officially accepted version of this paper can be found on the arXiv here.

    The second paper this week, published on Tuesday 23rd September 2025 is “Reanalysis of Stage-III cosmic shear surveys: A comprehensive study of shear diagnostic tests” by Jazmine Jefferson (University of Chicago, USA) and 13 others for the LSST Dark Energy Science Collaboration. It is also in the folder Cosmology and NonGalactic Astrophysics; it describes diagnostic tests on three public shear catalogs (KiDS-1000, Year 3 DES-Y3 s, and Year 3 HSC-Y3); not all the surveys pass all the tests.

    The corresponding overlay is here:

    You can find the officially accepted version on arXiv here.

    The third one this week, published on Wednesday 24th September 2025 in the folder Astrophysics of Galaxies, is “Is feedback-free star formation possible?” by Andrea Ferrara, Daniele Manzoni, and Evangelia Ntormousi (all of the Scuola Normale Superiore, Pisa, Italy). This paper presents an argument that Lyman-alpha radiation pressure strongly limits star formation efficiency, even at solar metallicities, so that a feedback-free star formation phase is not possible without feedback. The overlay is here:

    You can find the officially-accepted version on arXiv here.

    Next we have “Microphysical Regulation of Non-Ideal MHD in Weakly-Ionized Systems: Does the Hall Effect Matter?” by Philip F. Hopkins (Caltech, USA), Jonathan Squire (U. Otago, New Zeland), Raphael Skalidis (Caltech) and Nadine H. Soliman (Caltech). This was also published on Wednesday 24th September 2025, but in the folder Earth and Planetary Astrophysics. It presents an improved treatment of non-ideal effects in magnetohydrodynamics, particularly the Hall effect, and a discussion of the implications for weakly-ionized astrophysical systems.

    The corresponding overlay is here:

     

    You can find the officially accepted version of this one on arXiv here.

    The fifth, and last, one for this week is “The Local Volume Database: a library of the observed properties of nearby dwarf galaxies and star clusters” by Andrew B. Pace (University of Virginia, USA). This one was published on Friday 26th September (i.e. yesterday) in the folder Astrophysics of Galaxies. It presents a catalogue of positional, structural, kinematic, chemical, and dynamical parameters for dwarf galaxies and star clusters in the Local Volume. The overlay is here:

    You can find the officially-accepted version of this paper on arxiv here.

     

    And that concludes the report for this week. I’ll post another update next Saturday.

    #arXiv240506026v2 #arXiv241107424v2 #arXiv250410009v2 #arXiv250503964v3 #arXiv250902566v2 #AstrophysicsOfGalaxies #bispectrum #cosmicShear #CosmologyAndNonGalacticAstrophysics #DarkEnergySurvey #DiamondOpenAccessPublishing #dwarfGalaxies #EarthAndPlanetaryAstrophysics #feedback #HallEffect #intrinsicAlignments #KIDS #LocalGroup #magnetohydrodynamics #OpenAccessPublishing #StarClusters #starFormation #weakGravitationalLensing

  4. The Magic of the Hall Effect Sensor - Recently, [Solder Hub] put together a brief video that demonstrates the basics of ... - hackaday.com/2025/09/09/the-ma #halleffectsensor #halleffect #air-wired #parts

  5. Yay! Finally got my #ESP32 #HallEffect "magnetometer" up and running, just in time for #Gaussfest! Ah, OK... Anyone planning to bring a Tesla coil to #EMFCamp?

  6. TIL: Older #ESP32 devices have a built-in #HallEffect sensor. Might be interesting to see what kind of readings it comes up with at #gaussfest :SoElectric:

    [*] Whilst keeping a safe distance from the High Voltage Equipment :blobfoxwink:

  7. 🎮 Victrix Pro BFG Reloaded just dropped at EVO Vegas & it's fire! 🔥
    Modular. Wireless. Hall Effect sticks & triggers.
    Reworked Fightpad + 11 interchangeable parts.
    Xbox, PC, mobile — it's ready. 💪
    Available Sept 28. Preorder now for $209.99
    👉 cryovex.com/new-turtle-beach-v
    #VictrixReloaded #GameController #HallEffect #CryovexTech

  8. 🎮 Victrix Pro BFG Reloaded just dropped at EVO Vegas & it's fire! 🔥
    Modular. Wireless. Hall Effect sticks & triggers.
    Reworked Fightpad + 11 interchangeable parts.
    Xbox, PC, mobile — it's ready. 💪
    Available Sept 28. Preorder now for $209.99
    👉 cryovex.com/new-turtle-beach-v
    #VictrixReloaded #GameController #HallEffect #CryovexTech

  9. 🎮 Victrix Pro BFG Reloaded just dropped at EVO Vegas & it's fire! 🔥
    Modular. Wireless. Hall Effect sticks & triggers.
    Reworked Fightpad + 11 interchangeable parts.
    Xbox, PC, mobile — it's ready. 💪
    Available Sept 28. Preorder now for $209.99
    👉 cryovex.com/new-turtle-beach-v
    #VictrixReloaded #GameController #HallEffect #CryovexTech

  10. 🎮 Victrix Pro BFG Reloaded just dropped at EVO Vegas & it's fire! 🔥
    Modular. Wireless. Hall Effect sticks & triggers.
    Reworked Fightpad + 11 interchangeable parts.
    Xbox, PC, mobile — it's ready. 💪
    Available Sept 28. Preorder now for $209.99
    👉 cryovex.com/new-turtle-beach-v
    #VictrixReloaded #GameController #HallEffect #CryovexTech

  11. Clavier compact, switchs magnétiques, ISO FR, Bluetooth et personnalisation poussée : le Keychron K2H F1 HE coche (presque) toutes les cases.

    Test complet sur Leveltech.fr !
    #Keychron #ClavierMécanique #HallEffect #Setup

    leveltech.fr/test-keychron-k2h

  12. I have to say, I'm pretty angry about the fact that #Nintendo decided against using #HallEffect or TSM switches for the joy-cons. I thought they had at least learnt the lesson, but it seems they are insistent on using those cheap and fragile magnetic strip switches... I'm very disappointed.

    #NintendoSwitch2

  13. In 📆 2023, #SpaceX launched the first of its #Starlink V2 Mini satellites 🛰️. These next-generation spacecraft are equipped with #HallEffect thrusters, or #HETs, that operate on #argon, instead of the #krypton propellant on previous Starlinks aerospaceamerica.aiaa.org/year

    The essential working principle of the #HallThruster is that it uses an #electrostatic potential to accelerate #ions up to high speeds en.wikipedia.org/wiki/Hall-eff

    #ElectricPropulsion

  14. In 📆 2023, #SpaceX launched the first of its #Starlink V2 Mini satellites 🛰️. These next-generation spacecraft are equipped with #HallEffect thrusters, or #HETs, that operate on #argon, instead of the #krypton propellant on previous Starlinks aerospaceamerica.aiaa.org/year

    The essential working principle of the #HallThruster is that it uses an #electrostatic potential to accelerate #ions up to high speeds en.wikipedia.org/wiki/Hall-eff

    #ElectricPropulsion

  15. In 📆 2023, #SpaceX launched the first of its #Starlink V2 Mini satellites 🛰️. These next-generation spacecraft are equipped with #HallEffect thrusters, or #HETs, that operate on #argon, instead of the #krypton propellant on previous Starlinks aerospaceamerica.aiaa.org/year

    The essential working principle of the #HallThruster is that it uses an #electrostatic potential to accelerate #ions up to high speeds en.wikipedia.org/wiki/Hall-eff

    #ElectricPropulsion

  16. In 📆 2023, #SpaceX launched the first of its #Starlink V2 Mini satellites 🛰️. These next-generation spacecraft are equipped with #HallEffect thrusters, or #HETs, that operate on #argon, instead of the #krypton propellant on previous Starlinks aerospaceamerica.aiaa.org/year

    The essential working principle of the #HallThruster is that it uses an #electrostatic potential to accelerate #ions up to high speeds en.wikipedia.org/wiki/Hall-eff

    #ElectricPropulsion

  17. In 📆 2023, #SpaceX launched the first of its #Starlink V2 Mini satellites 🛰️. These next-generation spacecraft are equipped with #HallEffect thrusters, or #HETs, that operate on #argon, instead of the #krypton propellant on previous Starlinks aerospaceamerica.aiaa.org/year

    The essential working principle of the #HallThruster is that it uses an #electrostatic potential to accelerate #ions up to high speeds en.wikipedia.org/wiki/Hall-eff

    #ElectricPropulsion

  18. One for the #homeassistant #iot bubble: What manufacturer and/or series has decent #matter #thread sensors these days? To be clear, I don't want any proprietary bridges.

    Initial focus would be on #halleffect or even #mems sensors, air #temperature #humidity #particle and #co2, and movement ideally through #mmwave

    Decent pricing or a reliable Chinese source preferred.

    #retoot appreciated

  19. A new Time Extension news report about Hyperkin’s hall effect Nintendo 64 joystick mod crossed my feed reader. When I first read the article, I thought I had previously written about this in The New Leaf Journal, but it turns out that I had written about an 8BitDo hall effect mod. I happen to be a fan both of good hall effect controllers and the original, unique, Nintendo 64 joystick. The latter point gives me some pause about the Hyperkin mod. I quote from the Time Extension report: “Mimicking the GameCube’s analogue stick, you’ll be able to ‘feel the nostalgia and comfort of the GameCube era while dominating your favourite N64 games. This stick is designed for maximum comfort and a competitive edge, making long gaming sessions a breeze.'” While I prefer the GameCube controller to the Nintendo 64 controller, the Nintendo 64 had a more interesting (albeit less durable) joystick. If we are releasing mods, I would prefer one that preserves the feel of the original instead of replacing it with a more generic GameCube-style joystick, durability aside.

    https://social.emucafe.org/naferrell/on-hyperkins-hall-effect-n64-joystick/

    #hallEffect #n64 #nintendo #videoGameControllers

  20. My left Nintendo Switch Joy-Con is drifting so bad that I keep dying in Breath pf the Wild. Very frustrating. I barely even played that much! It seems it's just a matter of old age instead of wear and tear.

    Anyways, I found out that an entire iFixit pro tech toolkit and two new hall effect joysticks are just slightly more expensive than a pair of new joy-cons. So I went for the more sustainable option. Would you like to see photos/videos of the repair?

    #nintendo #switch #joycon #joycons #joycondrift #repair #ifixit #halleffect #halleffectthumbstick

  21. I now have 3 Hall Effect Dual Senses. This one was a challenge, thanks to Sony's constant revisions. Got the eBay Purple one today. Wanted to just stick the board into my OG white one, but the insides were different enough I had to swap the entire guts over. Then I realized the R1 buttons weren't the same. After putting it together the 1st time, noticed the charge port had moved. Got all that sorted and sticks calibrated (see alt text). Tested, no drift. 😎 #DIY #Tech #DualSense #HallEffect

  22. Verschiebung der Grenzen der elektrischen Sub-Kilowatt-Antriebstechnologie zur Ermöglichung von Planetenerkundung & kommerziellen Missionskonzepten
    NASA hat fortschrittliche Antriebstechnologie entwickelt, die künftige Planetenerforschung mit kleinen Raumfahrzeugen erleichtern soll. Technologie wird neue Arten von Planetenmissionen ermöglichen & kommerziell nutzbar sein. Pressemitteilung NASA. Bild: Northrop Grumman #HallEffect
    raumfahrer.net/verschiebung-de

  23. It was fun playing with a sci-fi style in this image which represents #CLIMAT : a new method developed by Artem Musiienko at Helmholtz-Zentrum Berlin and based on the #HallEffect. With this technique it's possible to resolve simultaneously 14 different parameters of #electrons and #holes in #semiconductors!

    More details on the press release available at: helmholtz-berlin.de/pubbin/new

    #SciArt #SciComm

  24. Turns out you can measure the flow rate of the Florida Current (part of the #gulfstream) by measuring the voltage that develops across the current using a decommissioned submarine telephone cable that runs between Florida and the Bahamas.

    The voltage develops due to the differential Lorenz forces experienced by ions in the seawater as they move through the earth magnetic field. Basically a giant #halleffect.

    aoml.noaa.gov/western-boundary

  25. PSA: iFixit now sells the Gulikit hall effect joystick replacements for the Switch's Joycons, so you don't have to figure out the right seller and listing on Amazon, or even use Amazon at all.

    #NintendoSwitch #JoyconDrift #Joycon #iFixit #Gulikit #HallEffect #Amazon #repair

  26. PSA: iFixit now sells the Gulikit hall effect joystick replacements for the Switch's Joycons, so you don't have to figure out the right seller and listing on Amazon, or even use Amazon at all.

    #NintendoSwitch #JoyconDrift #Joycon #iFixit #Gulikit #HallEffect #Amazon #repair

  27. PSA: iFixit now sells the Gulikit hall effect joystick replacements for the Switch's Joycons, so you don't have to figure out the right seller and listing on Amazon, or even use Amazon at all.

    #NintendoSwitch #JoyconDrift #Joycon #iFixit #Gulikit #HallEffect #Amazon #repair

  28. PSA: iFixit now sells the Gulikit hall effect joystick replacements for the Switch's Joycons, so you don't have to figure out the right seller and listing on Amazon, or even use Amazon at all.

    #NintendoSwitch #JoyconDrift #Joycon #iFixit #Gulikit #HallEffect #Amazon #repair

  29. PSA: iFixit now sells the Gulikit hall effect joystick replacements for the Switch's Joycons, so you don't have to figure out the right seller and listing on Amazon, or even use Amazon at all.

    #NintendoSwitch #JoyconDrift #Joycon #iFixit #Gulikit #HallEffect #Amazon #repair