#measurement — Public Fediverse posts
Live and recent posts from across the Fediverse tagged #measurement, aggregated by home.social.
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One accurate measurement is worth a thousand expert opinions.
-- Grace Hopper -
One accurate measurement is worth a thousand expert opinions.
-- Grace Hopper -
One accurate measurement is worth a thousand expert opinions.
-- Grace Hopper -
One accurate measurement is worth a thousand expert opinions.
-- Grace Hopper -
One accurate measurement is worth a thousand expert opinions.
-- Grace Hopper -
The MOSAIC study addresses that the @who.int #HealthyAgeing concept "psychological capacity" lacks clear conceptualisation:
https://science-health.csu.edu.au/research/psychological-capacity-in-older-people/_recache
#IntrinsicCapacity #HRQLThe project has now published the definition and conceptual framework resulting from discussions in the International Working Group, which is now being further refined in a #Delphi study
https://www.sciencedirect.com/science/article/pii/S1279770726002022?via%3Dihub -
The MOSAIC study addresses that the @who.int #HealthyAgeing concept "psychological capacity" lacks clear conceptualisation:
https://science-health.csu.edu.au/research/psychological-capacity-in-older-people/_recache
#IntrinsicCapacity #HRQLThe project has now published the definition and conceptual framework resulting from discussions in the International Working Group, which is now being further refined in a #Delphi study
https://www.sciencedirect.com/science/article/pii/S1279770726002022?via%3Dihub -
The MOSAIC study addresses that the @who.int #HealthyAgeing concept "psychological capacity" lacks clear conceptualisation:
https://science-health.csu.edu.au/research/psychological-capacity-in-older-people/_recache
#IntrinsicCapacity #HRQLThe project has now published the definition and conceptual framework resulting from discussions in the International Working Group, which is now being further refined in a #Delphi study
https://www.sciencedirect.com/science/article/pii/S1279770726002022?via%3Dihub -
EN 13402 is a European standard for size labelling of clothes.
Based on actual body dimensions measured in centimetres, its aim is to make it easier for people to find fitting clothes by ensuring size consistency across brands and countries of origin.
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Big Picture Science for Aug 24, 2026: Measure For Measure
REPEAT
Whether in miles or pounds, meters or kilograms, we take daily measure out our lives. But how did these units ever come to be, and why do we want to change them? From light-years to leap seconds, we look at the history of efforts to quantify our lives and why there’s always room for greater precision. Plus, we debate the virtues of staying imperial measurements vs. going metric.
Guest:* James Vincent - Author of Beyond Measure, the Hidden History of Measurement
Originally aired March 24, 2023
Download podcast at - https://bigpicturescience.org/episodes/measure-for-measure
You can listen to this and other episodes at http://bigpicturescience.org/
Get early access to ad-free versions of every episode by joining us on Patreon. Thanks for your support!
#Measurement #BigPictureScience #SETI #News #Podcast #Science
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New paper: "Valuation Without ℝ: A Category-Theoretic Foundation for Finite Measurement"
Can measurement be formalized independently of real numbers AND set theory?
We axiomatize "valuation" as a graded distinguishability map satisfying the ultrametric inequality. Dimension emerges as the growth exponent of the distinguishability graph.
Full paper: https://doi.org/10.5281/zenodo.21795656
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NASA's Parker Solar Probe Flew In And Out Of The Solar Corona And Found A Source Of High-Energy Particles That No Existing Model Had Predicted
(When NASA's Parker Solar Probe passed through the solar corona during perihelion encounters at the heliospheric current sheet, its instruments recorded energetic protons at energies far above what existing models of particle acceleration at that location could account for.)
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https://spacedaily.com/n-nasas-parker-solar-probe-flew-in-and-out-of-the-solar-corona-and-found-a-source-of-high-energy-particles-that-no-existing-model-had-predicted/ <-- shared technical article
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https://doi.org/10.3847/2041-8213/ae3ca1 <-- shared paper
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https://www.space.com/high-energy-particles-source-space-weather <-- shared technical article
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https://youtu.be/Woo4yZby4BU?si=rzzND3qJkubGKyTo <-- shared space weather overview effects video, #AIslop notwithstanding 🙃 🫠 😉
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“… A team… at the Southwest Research Institute… and… the University of Maryland’s Institute for Research in Electronics and Applied Physics has published an analysis of those measurements [link above]…, identifying magnetic reconnection at the heliospheric current sheet as the mechanism responsible. The proton energies detected were, in the study’s framing, approximately a thousand times greater than the available magnetic energy per particle that models of this process had predicted.
The finding matters for two reasons: it identifies a source of energetic particles close to the Sun that was not anticipated, and it raises questions about how far the existing understanding of reconnection-driven particle acceleration extends…
The Parker measurements suggest that picture needs revision. The magnetic island merging mechanism [the authors] identif[ied] can evidently produce proton populations at energies that challenge the boundary between what reconnection does and what shock acceleration does. Whether this source can explain a significant fraction of observed near-Earth energetic particle events, or whether it contributes mainly at energies and scales that remain confined close to the Sun, is a question the paper does not yet resolve…
Solar Orbiter, the European Space Agency mission operating in coordination with Parker, offers complementary measurements at somewhat greater distances. Comparing what the two spacecraft measure of the same particle populations as they propagate outward from the Sun will help establish which features originate close to the source and which are modified by the intervening solar wind. The energetic particle observations that puzzled researchers in the pre-Parker era now have a candidate mechanism. Whether that mechanism accounts for a large or small fraction of what actually reaches Earth remains the open question…”
#sun #solar #solarsystem #heliosphere #Parker #SolarOrbiter #spacecraft #research #monitoring #instrumentatin #spaceweather #solarflare #coronalmassejection #CME #NASA #ESA #magnetism #geomagnetism #proton #energy #particleacceleration #measurement #solarwind #risk #hazard #impacts #corona #perihelion #model #modeling
@nasa @esa -
NASA's Parker Solar Probe Flew In And Out Of The Solar Corona And Found A Source Of High-Energy Particles That No Existing Model Had Predicted
(When NASA's Parker Solar Probe passed through the solar corona during perihelion encounters at the heliospheric current sheet, its instruments recorded energetic protons at energies far above what existing models of particle acceleration at that location could account for.)
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https://spacedaily.com/n-nasas-parker-solar-probe-flew-in-and-out-of-the-solar-corona-and-found-a-source-of-high-energy-particles-that-no-existing-model-had-predicted/ <-- shared technical article
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https://doi.org/10.3847/2041-8213/ae3ca1 <-- shared paper
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https://www.space.com/high-energy-particles-source-space-weather <-- shared technical article
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https://youtu.be/Woo4yZby4BU?si=rzzND3qJkubGKyTo <-- shared space weather overview effects video, #AIslop notwithstanding 🙃 🫠 😉
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“… A team… at the Southwest Research Institute… and… the University of Maryland’s Institute for Research in Electronics and Applied Physics has published an analysis of those measurements [link above]…, identifying magnetic reconnection at the heliospheric current sheet as the mechanism responsible. The proton energies detected were, in the study’s framing, approximately a thousand times greater than the available magnetic energy per particle that models of this process had predicted.
The finding matters for two reasons: it identifies a source of energetic particles close to the Sun that was not anticipated, and it raises questions about how far the existing understanding of reconnection-driven particle acceleration extends…
The Parker measurements suggest that picture needs revision. The magnetic island merging mechanism [the authors] identif[ied] can evidently produce proton populations at energies that challenge the boundary between what reconnection does and what shock acceleration does. Whether this source can explain a significant fraction of observed near-Earth energetic particle events, or whether it contributes mainly at energies and scales that remain confined close to the Sun, is a question the paper does not yet resolve…
Solar Orbiter, the European Space Agency mission operating in coordination with Parker, offers complementary measurements at somewhat greater distances. Comparing what the two spacecraft measure of the same particle populations as they propagate outward from the Sun will help establish which features originate close to the source and which are modified by the intervening solar wind. The energetic particle observations that puzzled researchers in the pre-Parker era now have a candidate mechanism. Whether that mechanism accounts for a large or small fraction of what actually reaches Earth remains the open question…”
#sun #solar #solarsystem #heliosphere #Parker #SolarOrbiter #spacecraft #research #monitoring #instrumentatin #spaceweather #solarflare #coronalmassejection #CME #NASA #ESA #magnetism #geomagnetism #proton #energy #particleacceleration #measurement #solarwind #risk #hazard #impacts #corona #perihelion #model #modeling
@nasa @esa -
NASA's Parker Solar Probe Flew In And Out Of The Solar Corona And Found A Source Of High-Energy Particles That No Existing Model Had Predicted
(When NASA's Parker Solar Probe passed through the solar corona during perihelion encounters at the heliospheric current sheet, its instruments recorded energetic protons at energies far above what existing models of particle acceleration at that location could account for.)
--
https://spacedaily.com/n-nasas-parker-solar-probe-flew-in-and-out-of-the-solar-corona-and-found-a-source-of-high-energy-particles-that-no-existing-model-had-predicted/ <-- shared technical article
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https://doi.org/10.3847/2041-8213/ae3ca1 <-- shared paper
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https://www.space.com/high-energy-particles-source-space-weather <-- shared technical article
--
https://youtu.be/Woo4yZby4BU?si=rzzND3qJkubGKyTo <-- shared space weather overview effects video, #AIslop notwithstanding 🙃 🫠 😉
--
“… A team… at the Southwest Research Institute… and… the University of Maryland’s Institute for Research in Electronics and Applied Physics has published an analysis of those measurements [link above]…, identifying magnetic reconnection at the heliospheric current sheet as the mechanism responsible. The proton energies detected were, in the study’s framing, approximately a thousand times greater than the available magnetic energy per particle that models of this process had predicted.
The finding matters for two reasons: it identifies a source of energetic particles close to the Sun that was not anticipated, and it raises questions about how far the existing understanding of reconnection-driven particle acceleration extends…
The Parker measurements suggest that picture needs revision. The magnetic island merging mechanism [the authors] identif[ied] can evidently produce proton populations at energies that challenge the boundary between what reconnection does and what shock acceleration does. Whether this source can explain a significant fraction of observed near-Earth energetic particle events, or whether it contributes mainly at energies and scales that remain confined close to the Sun, is a question the paper does not yet resolve…
Solar Orbiter, the European Space Agency mission operating in coordination with Parker, offers complementary measurements at somewhat greater distances. Comparing what the two spacecraft measure of the same particle populations as they propagate outward from the Sun will help establish which features originate close to the source and which are modified by the intervening solar wind. The energetic particle observations that puzzled researchers in the pre-Parker era now have a candidate mechanism. Whether that mechanism accounts for a large or small fraction of what actually reaches Earth remains the open question…”
#sun #solar #solarsystem #heliosphere #Parker #SolarOrbiter #spacecraft #research #monitoring #instrumentatin #spaceweather #solarflare #coronalmassejection #CME #NASA #ESA #magnetism #geomagnetism #proton #energy #particleacceleration #measurement #solarwind #risk #hazard #impacts #corona #perihelion #model #modeling
@nasa @esa -
NASA's Parker Solar Probe Flew In And Out Of The Solar Corona And Found A Source Of High-Energy Particles That No Existing Model Had Predicted
(When NASA's Parker Solar Probe passed through the solar corona during perihelion encounters at the heliospheric current sheet, its instruments recorded energetic protons at energies far above what existing models of particle acceleration at that location could account for.)
--
https://spacedaily.com/n-nasas-parker-solar-probe-flew-in-and-out-of-the-solar-corona-and-found-a-source-of-high-energy-particles-that-no-existing-model-had-predicted/ <-- shared technical article
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https://doi.org/10.3847/2041-8213/ae3ca1 <-- shared paper
--
https://www.space.com/high-energy-particles-source-space-weather <-- shared technical article
--
https://youtu.be/Woo4yZby4BU?si=rzzND3qJkubGKyTo <-- shared space weather overview effects video, #AIslop notwithstanding 🙃 🫠 😉
--
“… A team… at the Southwest Research Institute… and… the University of Maryland’s Institute for Research in Electronics and Applied Physics has published an analysis of those measurements [link above]…, identifying magnetic reconnection at the heliospheric current sheet as the mechanism responsible. The proton energies detected were, in the study’s framing, approximately a thousand times greater than the available magnetic energy per particle that models of this process had predicted.
The finding matters for two reasons: it identifies a source of energetic particles close to the Sun that was not anticipated, and it raises questions about how far the existing understanding of reconnection-driven particle acceleration extends…
The Parker measurements suggest that picture needs revision. The magnetic island merging mechanism [the authors] identif[ied] can evidently produce proton populations at energies that challenge the boundary between what reconnection does and what shock acceleration does. Whether this source can explain a significant fraction of observed near-Earth energetic particle events, or whether it contributes mainly at energies and scales that remain confined close to the Sun, is a question the paper does not yet resolve…
Solar Orbiter, the European Space Agency mission operating in coordination with Parker, offers complementary measurements at somewhat greater distances. Comparing what the two spacecraft measure of the same particle populations as they propagate outward from the Sun will help establish which features originate close to the source and which are modified by the intervening solar wind. The energetic particle observations that puzzled researchers in the pre-Parker era now have a candidate mechanism. Whether that mechanism accounts for a large or small fraction of what actually reaches Earth remains the open question…”
#sun #solar #solarsystem #heliosphere #Parker #SolarOrbiter #spacecraft #research #monitoring #instrumentatin #spaceweather #solarflare #coronalmassejection #CME #NASA #ESA #magnetism #geomagnetism #proton #energy #particleacceleration #measurement #solarwind #risk #hazard #impacts #corona #perihelion #model #modeling
@nasa @esa -
NASA's Parker Solar Probe Flew In And Out Of The Solar Corona And Found A Source Of High-Energy Particles That No Existing Model Had Predicted
(When NASA's Parker Solar Probe passed through the solar corona during perihelion encounters at the heliospheric current sheet, its instruments recorded energetic protons at energies far above what existing models of particle acceleration at that location could account for.)
--
https://spacedaily.com/n-nasas-parker-solar-probe-flew-in-and-out-of-the-solar-corona-and-found-a-source-of-high-energy-particles-that-no-existing-model-had-predicted/ <-- shared technical article
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https://doi.org/10.3847/2041-8213/ae3ca1 <-- shared paper
--
https://www.space.com/high-energy-particles-source-space-weather <-- shared technical article
--
https://youtu.be/Woo4yZby4BU?si=rzzND3qJkubGKyTo <-- shared space weather overview effects video, #AIslop notwithstanding 🙃 🫠 😉
--
“… A team… at the Southwest Research Institute… and… the University of Maryland’s Institute for Research in Electronics and Applied Physics has published an analysis of those measurements [link above]…, identifying magnetic reconnection at the heliospheric current sheet as the mechanism responsible. The proton energies detected were, in the study’s framing, approximately a thousand times greater than the available magnetic energy per particle that models of this process had predicted.
The finding matters for two reasons: it identifies a source of energetic particles close to the Sun that was not anticipated, and it raises questions about how far the existing understanding of reconnection-driven particle acceleration extends…
The Parker measurements suggest that picture needs revision. The magnetic island merging mechanism [the authors] identif[ied] can evidently produce proton populations at energies that challenge the boundary between what reconnection does and what shock acceleration does. Whether this source can explain a significant fraction of observed near-Earth energetic particle events, or whether it contributes mainly at energies and scales that remain confined close to the Sun, is a question the paper does not yet resolve…
Solar Orbiter, the European Space Agency mission operating in coordination with Parker, offers complementary measurements at somewhat greater distances. Comparing what the two spacecraft measure of the same particle populations as they propagate outward from the Sun will help establish which features originate close to the source and which are modified by the intervening solar wind. The energetic particle observations that puzzled researchers in the pre-Parker era now have a candidate mechanism. Whether that mechanism accounts for a large or small fraction of what actually reaches Earth remains the open question…”
#sun #solar #solarsystem #heliosphere #Parker #SolarOrbiter #spacecraft #research #monitoring #instrumentatin #spaceweather #solarflare #coronalmassejection #CME #NASA #ESA #magnetism #geomagnetism #proton #energy #particleacceleration #measurement #solarwind #risk #hazard #impacts #corona #perihelion #model #modeling
@nasa @esa -
Just back from measuring our latitude (which I do roughly four times a year) and, for the first time, our longitude.
Latitude was pretty good, got to within about 15 km.
Longitude less good. Got about 6.8 degrees, but the actual value is about 3 degrees.
Wondering what went wrong ... need to think about how to "fix" that.
#Outreach #RecMaths #RecreationalMathematics #Latitude #Longitude #Solstice #Measurement
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Why the thermometer gun - The science of modern screening
#Science #InputDevices #Measurement #Temperature #Thermometer
https://gtechbooster.com/why-the-thermometer-gun-the-science-of-modern-screening/ -
Water Velocity And Discharge From Tidal Freshwater Creeks In Forested And Herbaceous Wetlands
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https://doi.org/10.1007/s12237-026-01690-w <-- shared paper
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#water #hydrology #tide #tidal #ecosystem #wildlife #fish #fisheries #nursery #nutrients #trophicenergy #discharge #ColumbiaRiver #Oregon #Washington #USA #fluvial #tidalfreshwater #TFW #habitat #restoration #flowregime # herbaceous #forested #wetland #marsh #aquatic #sediment #sedimentation #estuary #inundation #monitoring #measurement #velocity #discharge #volume #spatialanalysis #spatiotemporal #river #riverine #hydraulic #pluvial #precipitation #upstream #subtidal #wavelet #tidalcreek #AcousticDopplerCurrentProfiler #instrumentation #elevation #spatial #mapping -
The 2025 Trevor Levere Best Paper Prize goes to the team of the paper "The drop and the metric system: how an unruly unit survived revolutions"
https://www.tandfonline.com/doi/full/10.1080/00033790.2026.2636886This is really great news and is for an excellent paper that I highly recommend reading!
Working myself in an area that has at best non-standard measurement units (at worst, some people would argue, is not measurement at all), I found this very interesting.
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Just came across this blast from the past (2013):
https://rdcu.be/e7TDY
- daily assessments
- ordinal data multilevel #measurement
- DIF analysisCouched as a preliminary investigation and pilot study, the analytic approach still sets a bar reached rarely by studies with such data.
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Upcoming event at the Institute for #MedicalHumanities in Durham, UK:
#Measurement Heretics Workshop
Being, Meaning, and Measuring Well
https://www.durham.ac.uk/research/institutes-and-centres/medical-humanities/events/measurement-heretics-workshop-being-meaning-and-measuring-well/
11.-13.03.2026Day 1 #hybrid keynote:
A fluid history of measurement: The drop in the metric revolution
Armel Cornu and Sarah Hijmans
[Day2-3 in-person] -
Detecting Drought Stress In Trees From The Air [Switzerland]
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https://www.linkedin.com/pulse/detecting-drought-stress-trees-from-air-eidg-forschungsanstalt-wsl-mrjue <-- shared technical article
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https://doi.org/10.1016/j.agrformet.2025.110856 <-- shared paper
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https://www.inverse.com/science/trees-dying-shocking-rates-understanding-save-them <-- shared technical article
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#Umweltbeobachtung #Wald #Trockenheit #Drohnen #Forschung #EnvironmentalMonitoring #Forest #Trees #Drought #Drones #Research #UAV #GIS #spatial #mapping #remotesensing #tree #vegetation #climatechange #heatstress #hot #summer #sunlight #discolouration #leaf #leaves #defoliation #impacts #crowns #canopy #water #hydrology #drought #risk #hazard #drone #imagery #survey #nativetree #monitoring #spatialanalysis #spatiotemporal #measurement #methodology #drought #coping #Droughtstress #Forest #NDVI #PRI #Xanthophyll #Turgorlosspoint #waterstress #dehydration #mortality #death #dying #loss #hydraulicfailure #biology #botany #canopy -
RECORDING – Internet Measurement Awareness Workshop, Ghana
VIDEO | RECAP | ARCHIVE | PERMALINK
On 8 December 2025 the Internet Society Ghana Chapter (ISOC Ghana) hosted an Internet Measurement Awareness Workshop at the AAU Offices in Accra.
EMCEE: Emmanuel Gadasu - Institute of ICT Professionals Ghana (IIPGH) / E-Governance and Internet Governance Foundation for Africa (EGIGFA)
01 – Welcome and In
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U.S. Geological Survey [#USGS] Geomagnetic Variometer Data - Capitalizing On Seismic Infrastructure
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https://doi.org/10.1785/0220250185 <-- shared paper
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#geomagnetic #geomagnetism #USGS #USA #CONUS #seismology #seismograph #measurement #spatialanalysis #spatial #stations #SeismographicNetwork #magneticfield #readings #spatiotemporal #magnetometer #collabration #spaceweather #risk #hazard #colocation #magneticstorm #earthquake #interdisciplinary #research #sampling #multidisciplinary #fielddata #mapping #GIS #cohosted #corrleation #sampling #fedscience #fedservice #publicgood
#USGS -
Have You Ever Wondered What A New Concrete Stilling Well [stream gauge] Looked Like?
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H/T Roy Socolow, USGS
"While doing research on the USGS stream gaging program for a local presentation, [he] found this beautiful image of a classic stilling well from the Kentucky archives. Intakes and valve stems in perfect condition, hand pump and flush tank ready to fill, no kerosene or funky well water smell, and the clock weights on the Stevens recorder have plenty of travel room. Makes them] think of the good old days climbing down well ladders to “muck out” wells. Many of these “tanks” of instrument shelters still exist with either working intakes or as converted bubble gages. Many others have been decommissioned due to safety issues (falling or confined space hazards). Thanks to the men of the #CCC and #WPA..."
#gage #streamflow #instrumentation #hydrology #measurement #history #waterresources #stillingwell #recording #USGS #fedscience #fedservice
@USGS -
#AlanGuth - What are #Observers?
https://www.youtube.com/watch?v=y86FgGYV6cM
#Philosophy #PhilosophyOfScience #Science #Physics #QuantumMechanics #QuantumPhysics #QM #ManyWorlds #Observation #Measure #Measurement #MeasurementProblem #Probability #Cosmology #PhilosophyOfCosmology #BigBang #Inflation #EternalInflation #Infinity #WaveFunction #CloserToTruth #RobertKuhn
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#AndreasAlbrecht - #Multiverse: Where Do We Go from Here?
https://www.youtube.com/watch?v=M5QjSYYoxmU&ab_channel=CloserToTruth
#Philosophy #PhilosophyOfScience #PhilosophyOfCosmology #Science #Cosmology #Probability #QM #QuantumMechanics #QuantumPhysics #Physics #Astrophysics #Measurement #MeasureProblem #MeasurementProblem #ManyWorlds #Time #Entropy #ArrowOfTime #CloserToTruth #RobertKuhn
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🔥⏲️ Fudge Sunday "Can't Buy Me Lead Time" A look at lead time as a metric on a path to DevSecOps, platform engineering, and product-led culture
#leadtime #leadtimes #kpiimplementation #kpi #kpis #measurement #measurewhatmatters #lean #agilemindset #ux #devx #devops #devsecops #platformengineering #platformengineer #productledgrowth #productmindset #engineering #culture #customerexperiences #timetovalue #dora #softwaresupplychain #newsletter #newsletters
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#RaphaelBousso - What Would an #InfiniteUniverse Mean?
https://www.youtube.com/watch?v=k4LDn1P-lhA&ab_channel=CloserToTruth
#Philosophy #Science #PhilosophyOfScience #Cosmology #PhilosophyOfCosmology #Infinity #Universe #Cosmos #Inflation #EternalInflation #StringTheory #Probability #Measurement #MeasureProblem #CloserToTruth #RobertKuhn
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#SabineHossenfelder - Is #Science about to #End?
https://www.youtube.com/watch?v=-qSPy_HEJVU&ab_channel=BigThink
#Philosophy #Physics #PhilosophyOfPhysics #PhilosophyOfScience #GUT #GrandUnification #TheoryOfEverything #QM #QuantumMechanics #QuantumPhysics #QuantumComputing #QuantumTechnology #Measurement #Observation #StringTheory
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How big is a visible #Photon?
https://www.youtube.com/watch?v=SDtAh9IwG-I&ab_channel=HuygensOptics
#Physics #Optics #Experiment #Laser #LaserBeam #BeamSplitter #InterferencePattern #InterferencePatterns #DoubleSlit #DoubleSlitExperiment #Photons #Electromagnetism #Phase #PhaseDifference #Measurement #ShotNoise
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A Savage Discussion of Measurement And Accuracy - It’s commonly said that the great thing about standards is that there are so many ... - https://hackaday.com/2022/01/07/a-savage-discussion-of-measurement-and-accuracy/ #classichacks #measurement #adamsavage #nanometers #toolhacks #accuracy #microns #meters