#electromagnetism — Public Fediverse posts
Live and recent posts from across the Fediverse tagged #electromagnetism, aggregated by home.social.
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In 1948, physicists succeeding in explaining electromagnetism while unifying quantum mechanics and special relativity. #Poetry #Science #History #Quantum_electrodynamics #electromagnetism (https://sharpgiving.com/Sharp/thebookofscience/items/p1948a.html)
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In 1948, physicists succeeding in explaining electromagnetism while unifying quantum mechanics and special relativity. #Poetry #Science #History #Quantum_electrodynamics #electromagnetism (https://sharpgiving.com/Sharp/thebookofscience/items/p1948a.html)
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If you suspect that this might be somewhat less than an excellent podcast, perhaps a dull rehashing of what you might already know, check out the comments. Chuck was in the zone.
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If you suspect that this might be somewhat less than an excellent podcast, perhaps a dull rehashing of what you might already know, check out the comments. Chuck was in the zone.
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“Life-animules, fragments of Od in movement.” (1913) by Hippolyte Baraduc, from The Human Soul.
Source: Boston Public Library / Internet Archive
https://pdimagearchive.org/images/1809cb9f-3b12-4eac-8460-66f361d19991
#abstract #electricity #spirituality #soul #spirits #occultism #electromagnetism #auras #art #publicdomain
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“Life-animules, fragments of Od in movement.” (1913) by Hippolyte Baraduc, from The Human Soul.
Source: Boston Public Library / Internet Archive
https://pdimagearchive.org/images/1809cb9f-3b12-4eac-8460-66f361d19991
#abstract #electricity #spirituality #soul #spirits #occultism #electromagnetism #auras #art #publicdomain
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АНТРОПОЛОГИЯ, ANTHROPOLOGY, АНТРОПОЛОГІЯ
#АНТРОПОЛОГИЯ, #ANTHROPOLOGY, #АНТРОПОЛОГІЯ
t.me/scilib_yura15cbx/542Thermodynamics, statistical physics
Термодинамика, статистическая физика
Термодинаміка, статистична фізика
#Thermodynamics, #statistical physics
#Термодинамика, #статистическаяфизика
#Термодинаміка, #статистичнафізика
t.me/scilib_yura15cbx/541PQm Quantum mechanics
Квантовая механика
Квантова механіка
#Quantum mechanics
#Квантоваямеханика
#Квантовамеханіка
t.me/scilib_yura15cbx/540PQft Quantum field theory
Квантовая теория поля
Квантова теорія поля
#Quantum field theory
t.me/scilib_yura15cbx/539Фазовые переходы
Phase_transitions, Фазовіпереходи
#Фазовые переходы
#Phase transitions, #Фазовіпереходи
t.me/scilib_yura15cbx/538Пиротехника, Піротехніка, Pyrotechnics
#Пиротехника, #Піротехніка, #Pyrotechnics
t.me/scilib_yura15cbx/537Астрономия, Астрономія, Astronomy
#Астрономия, #Астрономія, #Astronomy
t.me/scilib_yura15cbx/536PPop Popular-level
Популярная физика
Популярна Фізика
t.me/scilib_yura15cbx/535PG General courses
Общие курсы
Загальні курси
t.me/scilib_yura15cbx/534PPl Plasma Плазма
Физика плазмы
#Plasma #Плазма
#Физика плазмы
t.me/scilib_yura15cbx/533PPh Philosophy of Physics
Философия физики,
Філософія фізики
t.me/scilib_yura15cbx/532POs Oscillations and waves
Колебания и волны
Коливання і хвилі
t.me/scilib_yura15cbx/531PNu Nuclear Physics
Ядерна фізика
Ядерная физика
#Nuclear Physics
#Ядернафізика
#Ядернаяфизика
t.me/scilib_yura15cbx/530PNc Nonlinear chaos
Нелинейный хаос
Нелінійний хаос
#Nonlinear chaos
#Нелинейныйхаос
#Нелінійнийхаос
t.me/scilib_yura15cbx/529PM Atomic Molecular and Optical Physics
Атомна молекулярна та оптична Фізика
Атомная молекулярная и оптическая физика
t.me/scilib_yura15cbx/528PGrc Cosmology
Космология
Космологія
#Cosmology
#Космология
#Космологія
t.me/scilib_yura15cbx/527PGr Gravitation
Гравитация
Гравітація
#Gravitation
#Гравитация
#Гравітація
t.me/scilib_yura15cbx/526PGe Encyclopaediae physics
Енциклопедія
Энциклопедии
t.me/scilib_yura15cbx/525PE Electromagnetism
Електромагнетизм
Электромагнетизм
#Electromagnetism
#Електромагнетизм
#Электромагнетизм
t.me/scilib_yura15cbx/523PD Dynamical systems
Динамические системы
Динамічна система
t.me/scilib_yura15cbx/522PCh Chemical physics
Хімічна фізика
Химическая физика
#Chemical physics
#Хімічнафізика
#Химическаяфизика
t.me/scilib_yura15cbx/521PCtm Theoretical mechanics
Теоретическая механика
Теоретична механіка
t.me/scilib_yura15cbx/520PCstr Special relativity
Спеціальна теорія відносності
Специальная теория относительности
t.me/scilib_yura15cbx/519PCft Classical fields
Классические поля, классическая теория поля, класична теорія поля
t.me/scilib_yura15cbx/518 -
АНТРОПОЛОГИЯ, ANTHROPOLOGY, АНТРОПОЛОГІЯ
#АНТРОПОЛОГИЯ, #ANTHROPOLOGY, #АНТРОПОЛОГІЯ
t.me/scilib_yura15cbx/542Thermodynamics, statistical physics
Термодинамика, статистическая физика
Термодинаміка, статистична фізика
#Thermodynamics, #statistical physics
#Термодинамика, #статистическаяфизика
#Термодинаміка, #статистичнафізика
t.me/scilib_yura15cbx/541PQm Quantum mechanics
Квантовая механика
Квантова механіка
#Quantum mechanics
#Квантоваямеханика
#Квантовамеханіка
t.me/scilib_yura15cbx/540PQft Quantum field theory
Квантовая теория поля
Квантова теорія поля
#Quantum field theory
t.me/scilib_yura15cbx/539Фазовые переходы
Phase_transitions, Фазовіпереходи
#Фазовые переходы
#Phase transitions, #Фазовіпереходи
t.me/scilib_yura15cbx/538Пиротехника, Піротехніка, Pyrotechnics
#Пиротехника, #Піротехніка, #Pyrotechnics
t.me/scilib_yura15cbx/537Астрономия, Астрономія, Astronomy
#Астрономия, #Астрономія, #Astronomy
t.me/scilib_yura15cbx/536PPop Popular-level
Популярная физика
Популярна Фізика
t.me/scilib_yura15cbx/535PG General courses
Общие курсы
Загальні курси
t.me/scilib_yura15cbx/534PPl Plasma Плазма
Физика плазмы
#Plasma #Плазма
#Физика плазмы
t.me/scilib_yura15cbx/533PPh Philosophy of Physics
Философия физики,
Філософія фізики
t.me/scilib_yura15cbx/532POs Oscillations and waves
Колебания и волны
Коливання і хвилі
t.me/scilib_yura15cbx/531PNu Nuclear Physics
Ядерна фізика
Ядерная физика
#Nuclear Physics
#Ядернафізика
#Ядернаяфизика
t.me/scilib_yura15cbx/530PNc Nonlinear chaos
Нелинейный хаос
Нелінійний хаос
#Nonlinear chaos
#Нелинейныйхаос
#Нелінійнийхаос
t.me/scilib_yura15cbx/529PM Atomic Molecular and Optical Physics
Атомна молекулярна та оптична Фізика
Атомная молекулярная и оптическая физика
t.me/scilib_yura15cbx/528PGrc Cosmology
Космология
Космологія
#Cosmology
#Космология
#Космологія
t.me/scilib_yura15cbx/527PGr Gravitation
Гравитация
Гравітація
#Gravitation
#Гравитация
#Гравітація
t.me/scilib_yura15cbx/526PGe Encyclopaediae physics
Енциклопедія
Энциклопедии
t.me/scilib_yura15cbx/525PE Electromagnetism
Електромагнетизм
Электромагнетизм
#Electromagnetism
#Електромагнетизм
#Электромагнетизм
t.me/scilib_yura15cbx/523PD Dynamical systems
Динамические системы
Динамічна система
t.me/scilib_yura15cbx/522PCh Chemical physics
Хімічна фізика
Химическая физика
#Chemical physics
#Хімічнафізика
#Химическаяфизика
t.me/scilib_yura15cbx/521PCtm Theoretical mechanics
Теоретическая механика
Теоретична механіка
t.me/scilib_yura15cbx/520PCstr Special relativity
Спеціальна теорія відносності
Специальная теория относительности
t.me/scilib_yura15cbx/519PCft Classical fields
Классические поля, классическая теория поля, класична теорія поля
t.me/scilib_yura15cbx/518 -
Evaluations of my #Electromagnetism course for Engineers just arrived, overall very good (93% overall satisfaction, which very high considering it's a mandatory first year course, which is really not the reason one enrols into energy engineering).
However, the variance of comments is maddening.
Here are students leaving comments for the very-same-course I teach: -
Evaluations of my #Electromagnetism course for Engineers just arrived, overall very good (93% overall satisfaction, which very high considering it's a mandatory first year course, which is really not the reason one enrols into energy engineering).
However, the variance of comments is maddening.
Here are students leaving comments for the very-same-course I teach: -
In 1947, Shockley, Brattain, and Bardeen invented the transistor. #Poetry #Science #History #Electromagnetism #Transistor #Shockley #Brattain #Bardeen (https://sharpgiving.com/Sharp/thebookofscience/items/p1947c.html)
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In 1947, Shockley, Brattain, and Bardeen invented the transistor. #Poetry #Science #History #Electromagnetism #Transistor #Shockley #Brattain #Bardeen (https://sharpgiving.com/Sharp/thebookofscience/items/p1947c.html)
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Nice between the 72 written exams of #Electromagnetism I am correcting, there's the one of one student who gave it to me and added "but please prof leave it on sunlight for a couple of hours because i have mononucleosis and I just sneezed over it"
🙄
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Nice between the 72 written exams of #Electromagnetism I am correcting, there's the one of one student who gave it to me and added "but please prof leave it on sunlight for a couple of hours because i have mononucleosis and I just sneezed over it"
🙄
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“Photograph of the Od attracted by the state of soul of a child lamenting over a recently killed pheasant.” (1913) by Hippolyte Baraduc, from The Human Soul.
Source: Boston Public Library / Internet Archive
https://pdimagearchive.org/images/14fc5a8b-ea24-40fb-9078-f826f68f582b
#electricity #spirituality #soul #spirits #occultism #death #electromagnetism #auras #windows #sadness #grieving #art #publicdomain
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“Photograph of the Od attracted by the state of soul of a child lamenting over a recently killed pheasant.” (1913) by Hippolyte Baraduc, from The Human Soul.
Source: Boston Public Library / Internet Archive
https://pdimagearchive.org/images/14fc5a8b-ea24-40fb-9078-f826f68f582b
#electricity #spirituality #soul #spirits #occultism #death #electromagnetism #auras #windows #sadness #grieving #art #publicdomain
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Morning of #Electromagnetism and experiments with high-school students (now on vacation, but willing to know more about #physics!)
All in the laboratories of our department.
#academia #astrophysics #science -
Morning of #Electromagnetism and experiments with high-school students (now on vacation, but willing to know more about #physics!)
All in the laboratories of our department.
#academia #astrophysics #science -
I wanted a simple but smooth electromagnetic field model of an RF cavity for use in particle tracking. I didn't want to design the whole cavity yet, so assumed a particular on-axis field function and then used Maxwell's equations to give a power series in radius. (I loosely based this on a similar note for magnet fields that I wrote in 2013).
https://stephenbrooks.org/ap/report/2026-9/rffield.pdf
#accelerators #physics #electromagnetism -
I wanted a simple but smooth electromagnetic field model of an RF cavity for use in particle tracking. I didn't want to design the whole cavity yet, so assumed a particular on-axis field function and then used Maxwell's equations to give a power series in radius. (I loosely based this on a similar note for magnet fields that I wrote in 2013).
https://stephenbrooks.org/ap/report/2026-9/rffield.pdf
#accelerators #physics #electromagnetism -
“Iconography produced in April 1894 in the dark, both hands stretched towards the plate.” (1913) by Hippolyte Baraduc, from The Human Soul.
Source: Boston Public Library / Internet Archive
https://pdimagearchive.org/images/d26b84c7-e483-4353-8b5c-84ce8c5bb807
#abstract #electricity #spirituality #soul #spirits #occultism #electromagnetism #auras #art #publicdomain
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“Iconography produced in April 1894 in the dark, both hands stretched towards the plate.” (1913) by Hippolyte Baraduc, from The Human Soul.
Source: Boston Public Library / Internet Archive
https://pdimagearchive.org/images/d26b84c7-e483-4353-8b5c-84ce8c5bb807
#abstract #electricity #spirituality #soul #spirits #occultism #electromagnetism #auras #art #publicdomain
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End of my #Electromagnetism course (for engineers) for this semester!
🫠
I just hated the subject when it was first given to me in 2017, and now it became my favourite one.
Here is a short list (10 in total) of what I think are the fundamental small experiments one can easily do at the desk to show the foundation of EM in action .
(larger collection here https://vimeo.com/showcase/5419982)
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End of my #Electromagnetism course (for engineers) for this semester!
🫠
I just hated the subject when it was first given to me in 2017, and now it became my favourite one.
Here is a short list (10 in total) of what I think are the fundamental small experiments one can easily do at the desk to show the foundation of EM in action .
(larger collection here https://vimeo.com/showcase/5419982)
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📄 New publication: "Field measurements of environmental dose rate for trapped charge dating"
Field measurements at or close to the sampling position used for dating are the most direct ways of estimating environmental dose rates. They usually happen in undisturbed settings under natural conditions, avoiding extensive post-processing or modelling. Over the last decades, the trapped charge dating community has pr (...)
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In 1946, Walter M. Elsasser explained that convection in Earth’s outer core creates the magnetosphere. #Poetry #Science #History #Electromagnetism #Earth_science #Magnetosphere #Elsasser (https://sharpgiving.com/Sharp/thebookofscience/items/p1946c.html)
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In 1946, Walter M. Elsasser explained that convection in Earth’s outer core creates the magnetosphere. #Poetry #Science #History #Electromagnetism #Earth_science #Magnetosphere #Elsasser (https://sharpgiving.com/Sharp/thebookofscience/items/p1946c.html)
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Very proud of this test, first time ever I make it work: it shows in a nutshell the wireless transmission of a small power via #Faraday induction effect, from one coil to a secondary coil which is connected to a voltmeter.
Both coils have >1e4 windings.
First, I let the primary coil have an intermittent current, but nothing happens on the secondary. After I insert a ferromagnet instead, the transmitted tension to the secondary goes to a few +-0.1V.
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Very proud of this test, first time ever I make it work: it shows in a nutshell the wireless transmission of a small power via #Faraday induction effect, from one coil to a secondary coil which is connected to a voltmeter.
Both coils have >1e4 windings.
First, I let the primary coil have an intermittent current, but nothing happens on the secondary. After I insert a ferromagnet instead, the transmitted tension to the secondary goes to a few +-0.1V.
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#Electromagnetism experience of today: Faraday induction law in action, look at my baby electric generator (of course I just bought it and assembled, it's a nice today with led bulb)
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#Electromagnetism experience of today: Faraday induction law in action, look at my baby electric generator (of course I just bought it and assembled, it's a nice today with led bulb)
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New #Electromagnetism experiment in the class today: THE fundamental one, i.e. Faraday's discovery of the induction law (~1831) in which a variation of the magnetic field flux across a coil generates a voltage, which the voltmeter can measure (a super tiny one here, i.e. 0.01V or so).
Faraday's induction is no less than the foundation of our technology, from the generation of electricity, to its transformation, to wireless anything. You can even cook with it!
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New #Electromagnetism experiment in the class today: THE fundamental one, i.e. Faraday's discovery of the induction law (~1831) in which a variation of the magnetic field flux across a coil generates a voltage, which the voltmeter can measure (a super tiny one here, i.e. 0.01V or so).
Faraday's induction is no less than the foundation of our technology, from the generation of electricity, to its transformation, to wireless anything. You can even cook with it!
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New #Electromagnetism small experiment in the class: showing the boost in magnetic field on the axis of a solenoid (for a given current I, B scales with the density of winding per unit length) to produce an electro magnet and lift a small neodymium magnet.
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New #Electromagnetism small experiment in the class: showing the boost in magnetic field on the axis of a solenoid (for a given current I, B scales with the density of winding per unit length) to produce an electro magnet and lift a small neodymium magnet.
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In todays experiment of #Electromagnetism in the class:
Faraday's homopolar motor (1821), here using a battery, a magnet and a rigid copper wire.
https://en.wikipedia.org/wiki/Homopolar_motor
(the original experiment involved liquid mercury instead, probably not allowed to use at the uni)
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In todays experiment of #Electromagnetism in the class:
Faraday's homopolar motor (1821), here using a battery, a magnet and a rigid copper wire.
https://en.wikipedia.org/wiki/Homopolar_motor
(the original experiment involved liquid mercury instead, probably not allowed to use at the uni)
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#Electromagnetism experience of the day in the class: magnetic levitation using a B-field opportunely induced by alternating currents.
(from there, I gave the idea of how levitation works for **trains** , as in the #Maglev https://en.wikipedia.org/wiki/Maglev)
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#Electromagnetism experience of the day in the class: magnetic levitation using a B-field opportunely induced by alternating currents.
(from there, I gave the idea of how levitation works for **trains** , as in the #Maglev https://en.wikipedia.org/wiki/Maglev)
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Forget about the #SimulationHypothesis and other infections of the mind:
(https://mastodon.social/@franco_vazza/116447021798645275)
here is the joy of rock solid #electromagnetism, which induces parcels of iron to bounce on a plate and align according to the magnetic field lines of two magnets put just below the plate (in todays EM class)
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Forget about the #SimulationHypothesis and other infections of the mind:
(https://mastodon.social/@franco_vazza/116447021798645275)
here is the joy of rock solid #electromagnetism, which induces parcels of iron to bounce on a plate and align according to the magnetic field lines of two magnets put just below the plate (in todays EM class)
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Another #Electromagnetism lecture, another live experiment: this one is creating the "tomato battery", i.e. using cherry tomatoes to create zinc-copper galvanic cells and power a small electric watch (which needs about 1.5V to work).
the students realise that a single cell is not enough, and a series of two is needed to get enough voltage.That's the vegan version of the original experiments by Galvani, in which dead frogs were involved..
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Another #Electromagnetism lecture, another live experiment: this one is creating the "tomato battery", i.e. using cherry tomatoes to create zinc-copper galvanic cells and power a small electric watch (which needs about 1.5V to work).
the students realise that a single cell is not enough, and a series of two is needed to get enough voltage.That's the vegan version of the original experiments by Galvani, in which dead frogs were involved..
-
In my #Electromagnetism lectures yesterday: trying to show the concept of discharge and breaking of a dielectric medium using a "plasma ball".
The innermost part is elevated to a ~10kiloVolt potential by an upward transformation, which is enough to produce plasma sparks in this rarefied medium.
(btw this thing is cool but I tend to break it once a year, which causes a sharp whistle when the mixture of rare gases leaks out - probably radon, krypton & argon)
#science #physics -
In my #Electromagnetism lectures yesterday: trying to show the concept of discharge and breaking of a dielectric medium using a "plasma ball".
The innermost part is elevated to a ~10kiloVolt potential by an upward transformation, which is enough to produce plasma sparks in this rarefied medium.
(btw this thing is cool but I tend to break it once a year, which causes a sharp whistle when the mixture of rare gases leaks out - probably radon, krypton & argon)
#science #physics -
Here is the "experiment" of today in the #Electromagnetism class: a tiny replica of the Leiden jar which is a far ancestor of the battery, consisting of a distribution of chargers trapped in in a glass container, which acts as a capacitor when the inner and outer conducting layers are reconnected again.
I used a voltmeter to detect the tiny residual voltage (0.4mV) produced across the bottle after the charging process.
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Here is the "experiment" of today in the #Electromagnetism class: a tiny replica of the Leiden jar which is a far ancestor of the battery, consisting of a distribution of chargers trapped in in a glass container, which acts as a capacitor when the inner and outer conducting layers are reconnected again.
I used a voltmeter to detect the tiny residual voltage (0.4mV) produced across the bottle after the charging process.
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“Major Darget, placing his fingers together, projected his will on a sensitive plate.” (1913) by Hippolyte Baraduc, from The Human Soul.
Source: Boston Public Library / Internet Archive
https://pdimagearchive.org/images/65b2de8e-f9ac-4b7e-8ae5-169f4cba3111
#abstract #electricity #spirituality #soul #spirits #occultism #electromagnetism #auras #art #publicdomain
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“Major Darget, placing his fingers together, projected his will on a sensitive plate.” (1913) by Hippolyte Baraduc, from The Human Soul.
Source: Boston Public Library / Internet Archive
https://pdimagearchive.org/images/65b2de8e-f9ac-4b7e-8ae5-169f4cba3111
#abstract #electricity #spirituality #soul #spirits #occultism #electromagnetism #auras #art #publicdomain
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In 1821, Humphry Davy described the basic rules of electric conductivity. #Poetry #Science #History #Electromagnetism #Conductivity #Davy (https://sharpgiving.com/Sharp/thebookofscience/items/p1821a.html)
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In 1821, Humphry Davy described the basic rules of electric conductivity. #Poetry #Science #History #Electromagnetism #Conductivity #Davy (https://sharpgiving.com/Sharp/thebookofscience/items/p1821a.html)
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Mind blowing 💥 experiment to show the principle of an electroscope, with high tech material.
Home recorded experiment, under safe conditions, of what I am also going to present in the class. -
Mind blowing 💥 experiment to show the principle of an electroscope, with high tech material.
Home recorded experiment, under safe conditions, of what I am also going to present in the class. -
CW: My #AI Grievance
Okay I happened on a #AI generated video using #RichardFeynman's voice to explain #electromagnetism. But I didn't realize that it was a #deepfake at first. My clue was the "Feynman" in the video kept referred to the "device you're listening to this lecture on" 🤔 I'm thinking that the real Feynman was doing his thing before tablets and personal computers, etc. 🤔 That's when I noticed the disclaimer below the video. In other words, he never said the things in the video. WTF?
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CW: My #AI Grievance
Okay I happened on a #AI generated video using #RichardFeynman's voice to explain #electromagnetism. But I didn't realize that it was a #deepfake at first. My clue was the "Feynman" in the video kept referred to the "device you're listening to this lecture on" 🤔 I'm thinking that the real Feynman was doing his thing before tablets and personal computers, etc. 🤔 That's when I noticed the disclaimer below the video. In other words, he never said the things in the video. WTF?
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French physicist André-Marie Ampère, born OTD in 1775, was one of the founders of the science of classical #electromagnetism, the measure of electrical current is named for him https://cromwell-intl.com/travel/france/electricity/?s=mb #travel #France #science
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French physicist André-Marie Ampère, born OTD in 1775, was one of the founders of the science of classical #electromagnetism, the measure of electrical current is named for him https://cromwell-intl.com/travel/france/electricity/?s=mb #travel #France #science
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Faraday Effects Emerging from the Optical Magnetic Field https://hackaday.com/2026/01/06/faraday-effects-emerging-from-the-optical-magnetic-field/ #electromagnetism #MichaelFaraday #Faradayeffect #Science #faraday
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Faraday Effects Emerging from the Optical Magnetic Field https://hackaday.com/2026/01/06/faraday-effects-emerging-from-the-optical-magnetic-field/ #electromagnetism #MichaelFaraday #Faradayeffect #Science #faraday
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Faraday Effects Emerging from the Optical Magnetic Field