You may be a geophysicist if autocorrect changes “resisting” to “resistivity” ⚒️
June 10, 2024 at 3:54 PM
You may be a geophysicist if autocorrect changes “resisting” to “resistivity” ⚒️
New paper on magnetotelluric modeling of Yellowstone caldera: “We find that rhyolitic melts are stored in segregated regions beneath the caldera with low melt fractions, indicating that the reservoirs are not eruptible.” ⚒️🧪🌋
www.nature.com/articles/s41...
www.nature.com/articles/s41...
January 1, 2025 at 7:00 PM
New paper on magnetotelluric modeling of Yellowstone caldera: “We find that rhyolitic melts are stored in segregated regions beneath the caldera with low melt fractions, indicating that the reservoirs are not eruptible.” ⚒️🧪🌋
www.nature.com/articles/s41...
www.nature.com/articles/s41...
Was looking at a company's website and their resources page led me back to a short video I did back in 2017 introducing a then-new electrical resistivity survey planning tool, and the geophysicist superhero stick figures a coworker drew still crack me up.
youtu.be/3WK1YJotbfw?...
youtu.be/3WK1YJotbfw?...
USGS Scenario Evaluator for Electrical Resistivity Survey Design Tool
YouTube video by USGS
youtu.be
December 27, 2025 at 2:00 AM
Was looking at a company's website and their resources page led me back to a short video I did back in 2017 introducing a then-new electrical resistivity survey planning tool, and the geophysicist superhero stick figures a coworker drew still crack me up.
youtu.be/3WK1YJotbfw?...
youtu.be/3WK1YJotbfw?...
Ground-Penetrating Radar (GPR) systems, magnetometers, and electrical resistivity meters can be used to scan to spot and map subsurface ground disturbances without digging. They are widely used in archeology.
August 2, 2026 at 3:02 AM
Ground-Penetrating Radar (GPR) systems, magnetometers, and electrical resistivity meters can be used to scan to spot and map subsurface ground disturbances without digging. They are widely used in archeology.
Can we use near surface geophysics to identify seepage from canals? Yes! This new paper in Journal of Hydrology, led by former MS student Dina Ragab, illustrates the use timelapse ERT to reveal locations of decreased resistivity associated with seepage from nearby irrigation canals #hydrology
November 14, 2024 at 4:43 AM
Can we use near surface geophysics to identify seepage from canals? Yes! This new paper in Journal of Hydrology, led by former MS student Dina Ragab, illustrates the use timelapse ERT to reveal locations of decreased resistivity associated with seepage from nearby irrigation canals #hydrology
How do geophysicists “see” underground? 👀⚡️
Electrical Resistivity Tomography (ERT) helps scientists map underground resistivity to locate groundwater, track pollution, and more! Our new animation explains how ERT works and why it’s a powerful tool in geophysics.
Full video: https://loom.ly/g13mEGs
Electrical Resistivity Tomography (ERT) helps scientists map underground resistivity to locate groundwater, track pollution, and more! Our new animation explains how ERT works and why it’s a powerful tool in geophysics.
Full video: https://loom.ly/g13mEGs
March 17, 2025 at 5:45 PM
How do geophysicists “see” underground? 👀⚡️
Electrical Resistivity Tomography (ERT) helps scientists map underground resistivity to locate groundwater, track pollution, and more! Our new animation explains how ERT works and why it’s a powerful tool in geophysics.
Full video: https://loom.ly/g13mEGs
Electrical Resistivity Tomography (ERT) helps scientists map underground resistivity to locate groundwater, track pollution, and more! Our new animation explains how ERT works and why it’s a powerful tool in geophysics.
Full video: https://loom.ly/g13mEGs
By sending low-voltage electrical currents through the ground and measuring how the current flows between electrodes, electrical resistivity tomography reveals variations in underground resistivity. These measurements are combined to create a detailed resistivity profile of subsurface materials.
March 21, 2025 at 6:30 PM
By sending low-voltage electrical currents through the ground and measuring how the current flows between electrodes, electrical resistivity tomography reveals variations in underground resistivity. These measurements are combined to create a detailed resistivity profile of subsurface materials.
Magma beneath the Yellowstone Caldera may be shifting to the northeast, according to research on the properties of the crust beneath the area published in Nature. https://go.nature.com/3PorWgj 🧪
January 8, 2025 at 2:12 PM
Magma beneath the Yellowstone Caldera may be shifting to the northeast, according to research on the properties of the crust beneath the area published in Nature. https://go.nature.com/3PorWgj 🧪
Published in @newphyt.bsky.social: Our new paper highlights the significant role of ecological memory and legacy effects in determining tree responses to environmental changes https://nph.onlinelibrary.wiley.com/doi/10.1111/nph.20245
December 19, 2024 at 6:38 AM
Published in @newphyt.bsky.social: Our new paper highlights the significant role of ecological memory and legacy effects in determining tree responses to environmental changes https://nph.onlinelibrary.wiley.com/doi/10.1111/nph.20245
You can tell the scenario on the right is more real-world because they are sitting on a cooler 😆
December 27, 2025 at 2:00 AM
You can tell the scenario on the right is more real-world because they are sitting on a cooler 😆
got it that makes sense(and also sounds right for resistivity)
September 13, 2026 at 6:38 PM
got it that makes sense(and also sounds right for resistivity)
I acquired a whole bunch of long-ass usb and HDMI cables for a work project last year. A few were 30 ft. Turns out you can push ohm's law (and more importantly the capacitance and inductance, bc copper has like 0.01 ohms/metre resistivity) of a cable pretty far if you don't need 4k and 120 fps.
January 27, 2024 at 3:08 AM
I acquired a whole bunch of long-ass usb and HDMI cables for a work project last year. A few were 30 ft. Turns out you can push ohm's law (and more importantly the capacitance and inductance, bc copper has like 0.01 ohms/metre resistivity) of a cable pretty far if you don't need 4k and 120 fps.
Waiting for the geophysics experiment to end. Sunset at the UNSW field station at Wellington, Australia
March 19, 2025 at 10:03 AM
Waiting for the geophysics experiment to end. Sunset at the UNSW field station at Wellington, Australia
We don’t just write about archaeology!
Here is our editor Tansy (pictured in red) who participated in a resistivity survey with the Suffolk Archaeological Field Group this past weekend! 🏺
Here is our editor Tansy (pictured in red) who participated in a resistivity survey with the Suffolk Archaeological Field Group this past weekend! 🏺
September 26, 2025 at 1:07 PM
We don’t just write about archaeology!
Here is our editor Tansy (pictured in red) who participated in a resistivity survey with the Suffolk Archaeological Field Group this past weekend! 🏺
Here is our editor Tansy (pictured in red) who participated in a resistivity survey with the Suffolk Archaeological Field Group this past weekend! 🏺
Me, an electrical engineer, telling a meeting full of civil engineers that our geotechnical surveys aren't just soil borings, they also include soil resistivity testing, & getting a bunch of blank stares in return 🤦🏽♀️
March 20, 2026 at 3:00 PM
Me, an electrical engineer, telling a meeting full of civil engineers that our geotechnical surveys aren't just soil borings, they also include soil resistivity testing, & getting a bunch of blank stares in return 🤦🏽♀️
the idea has fascinated me ever since i did a science fair project on the resistivity of different lunchmeats
July 30, 2024 at 4:05 AM
the idea has fascinated me ever since i did a science fair project on the resistivity of different lunchmeats
One of the best online collaborative activities I've done, teaching electricity. For 45 minutes, the entire classroom was engaged, sharing ideas, teaching each other, reinforcing work from previous lessons. Great stuff
@cossettej.bsky.social
#iteachphysics
tinyurl.com/bdzmn4h9
@cossettej.bsky.social
#iteachphysics
tinyurl.com/bdzmn4h9
Circuit Virtual Escape Room
Virtual Escape Room on the topics of circuits, electricity, voltage, resistance, current, ohm's law, and resistivity
passionatelycurioussci.weebly.com
January 28, 2025 at 7:28 PM
One of the best online collaborative activities I've done, teaching electricity. For 45 minutes, the entire classroom was engaged, sharing ideas, teaching each other, reinforcing work from previous lessons. Great stuff
@cossettej.bsky.social
#iteachphysics
tinyurl.com/bdzmn4h9
@cossettej.bsky.social
#iteachphysics
tinyurl.com/bdzmn4h9
[2609.22751] Hayato Uchimura et al.: Dust Growth in Evolving Filamentary Molecular Clouds: Signatures in Ionization, Resistivity, and Infrared Scattering. link
September 22, 2026 at 5:26 AM
[2609.22751] Hayato Uchimura et al.: Dust Growth in Evolving Filamentary Molecular Clouds: Signatures in Ionization, Resistivity, and Infrared Scattering. link
Cat-ching up with Digging For Britain 🏺
January 11, 2024 at 7:26 PM
Cat-ching up with Digging For Britain 🏺
'promising a 30-year expected operational lifetime...∞Cell N785Ah is designed for a 20,000-cycle service life and supports storage durations between 2-hour and 8-hour...high phase-purity, high compaction-density, low-resistivity sodium iron phosphate pyrophosphate (NFPP) cathode material'
Hithium unveils 20,000-cycle sodium-ion cell and 4MWh BESS
Hithium launched its new sodium-ion (Na-ion) cell and energy storage system product line, promising a 30-year expected operational lifetime.
www.energy-storage.news
September 18, 2026 at 1:54 PM
'promising a 30-year expected operational lifetime...∞Cell N785Ah is designed for a 20,000-cycle service life and supports storage durations between 2-hour and 8-hour...high phase-purity, high compaction-density, low-resistivity sodium iron phosphate pyrophosphate (NFPP) cathode material'
"Below this structure, ERT reveals a highly electrically resistive anomaly, which extends over an area of about 10 m by 10 m."
onlinelibrary.wiley.com/doi/full/10....
onlinelibrary.wiley.com/doi/full/10....
GPR and ERT Exploration in the Western Cemetery in Giza, Egypt
A geophysical exploration employing ground-penetrating radar (GPR) and electrical resistivity tomography (ERT) was conducted at the Western Cemetery, Giza, Egypt, in 2021–23 by a joint research team ...
onlinelibrary.wiley.com
December 26, 2025 at 1:20 AM
"Below this structure, ERT reveals a highly electrically resistive anomaly, which extends over an area of about 10 m by 10 m."
onlinelibrary.wiley.com/doi/full/10....
onlinelibrary.wiley.com/doi/full/10....
Getting ready for two weeks of geophysics mapping #groundwater and #premafrost in #NorthernBC using Electrical Resistivity Tomography and Induced Polarization
July 26, 2026 at 9:11 PM
Getting ready for two weeks of geophysics mapping #groundwater and #premafrost in #NorthernBC using Electrical Resistivity Tomography and Induced Polarization
“How deep should stakes be driven for measuring earth resistivity?” is not a question I thought I’d be asking when writing a Midwestern gothic, but here we are.
#writingcommunity #authorsky #writersky #indiewriters
#writingcommunity #authorsky #writersky #indiewriters
November 7, 2025 at 4:06 PM
“How deep should stakes be driven for measuring earth resistivity?” is not a question I thought I’d be asking when writing a Midwestern gothic, but here we are.
#writingcommunity #authorsky #writersky #indiewriters
#writingcommunity #authorsky #writersky #indiewriters
Imported blue wafers with over 15% doping swings are idling U.S. solar lines, as factories lose all control over resistivity, gettering, and junction depth. The result is scrap, drifting fill factors, and stalled progress on TOPCon or heterojunction cells.
#SolarManufacturing
#SolarManufacturing
September 24, 2026 at 10:00 PM
Imported blue wafers with over 15% doping swings are idling U.S. solar lines, as factories lose all control over resistivity, gettering, and junction depth. The result is scrap, drifting fill factors, and stalled progress on TOPCon or heterojunction cells.
#SolarManufacturing
#SolarManufacturing