Finally, spotted this on the way out. An upside down galvanometer.
November 13, 2024 at 3:31 PM
Finally, spotted this on the way out. An upside down galvanometer.
Yeah baby, show us your galvanometer. #horrorwatch
September 22, 2024 at 1:17 AM
Yeah baby, show us your galvanometer. #horrorwatch
This is THE galvanometer that was used to receive the Queen's Message to President Buchanan on the first trans-Atlantic cable.
December 20, 2025 at 7:42 PM
This is THE galvanometer that was used to receive the Queen's Message to President Buchanan on the first trans-Atlantic cable.
I never really trusted electricity until I created it myself 'out of thin air'.
I made a wet cell battery and tinkered together a galvanometer out of a magnetic compass and a few feet of Bell wire!
Full disclosure: I found out how to do both from 𝘣𝘰𝘰𝘬𝘴.
Knowledge is (in this case literally) power! 🙇
I made a wet cell battery and tinkered together a galvanometer out of a magnetic compass and a few feet of Bell wire!
Full disclosure: I found out how to do both from 𝘣𝘰𝘰𝘬𝘴.
Knowledge is (in this case literally) power! 🙇
May 24, 2026 at 12:15 AM
I never really trusted electricity until I created it myself 'out of thin air'.
I made a wet cell battery and tinkered together a galvanometer out of a magnetic compass and a few feet of Bell wire!
Full disclosure: I found out how to do both from 𝘣𝘰𝘰𝘬𝘴.
Knowledge is (in this case literally) power! 🙇
I made a wet cell battery and tinkered together a galvanometer out of a magnetic compass and a few feet of Bell wire!
Full disclosure: I found out how to do both from 𝘣𝘰𝘰𝘬𝘴.
Knowledge is (in this case literally) power! 🙇
Jan. 2, 1926: Richard Caton, a British physiologist who in 1875 used a galvanometer to detect electrical impulses from brains of living animals, dies at 83. His find would later be cited as crucial in the discovery of the brain’s alpha waves. He also served as Liverpool mayor.
January 2, 2026 at 7:17 PM
Jan. 2, 1926: Richard Caton, a British physiologist who in 1875 used a galvanometer to detect electrical impulses from brains of living animals, dies at 83. His find would later be cited as crucial in the discovery of the brain’s alpha waves. He also served as Liverpool mayor.
The appification of scientology! "Dewey knows about [the 'psycho-galvanometer']. We can sell thousands of them as distributors for 60% profit. I have a use for them nobody suspects yet."
open.substack.com/pub/tonyorte...
open.substack.com/pub/tonyorte...
NEW: L. Ron Hubbard letter found with plan to make millions from Scientology devices
Our researcher who helps us with early Scientology history really hit on a gem for us this time.
open.substack.com
March 21, 2026 at 11:18 AM
The appification of scientology! "Dewey knows about [the 'psycho-galvanometer']. We can sell thousands of them as distributors for 60% profit. I have a use for them nobody suspects yet."
open.substack.com/pub/tonyorte...
open.substack.com/pub/tonyorte...
I love the simplicity of electromagnetic induction. Coil, magnet, galvanometer. Feels like magic.
August 29, 2024 at 6:11 PM
I love the simplicity of electromagnetic induction. Coil, magnet, galvanometer. Feels like magic.
The device is called a "mirror galvanometer" & it's a way of turning electric impulses into motion using magnetic deflection of ferrous metal.
Think of a round metal plate like a coin hanging from a thread in a magnetic field.
The telegraph signal deflects the coin. Thomson wore a monocle...
Think of a round metal plate like a coin hanging from a thread in a magnetic field.
The telegraph signal deflects the coin. Thomson wore a monocle...
Inventing the Mirror Galvanometer | American Experience | PBS
A chance "eureka moment" by a Scottish physicist solved a problem that had plagued the transatlantic cable.
www.pbs.org
October 23, 2025 at 11:58 PM
The device is called a "mirror galvanometer" & it's a way of turning electric impulses into motion using magnetic deflection of ferrous metal.
Think of a round metal plate like a coin hanging from a thread in a magnetic field.
The telegraph signal deflects the coin. Thomson wore a monocle...
Think of a round metal plate like a coin hanging from a thread in a magnetic field.
The telegraph signal deflects the coin. Thomson wore a monocle...
In 1791, Johann Schweigger built the first working galvanometer, coiling a wire around a magnetic needle. #Poetry #Science #History #Electromagnetism #Galvanometer #Schweigger sharpgiving.com/thebookofsci...
1791,1820 - Galvanometer - The book of science
In 1791, Johann Schweigger built the first working galvanometer, coiling a wire around a magnetic needle.
sharpgiving.com
March 22, 2025 at 5:40 PM
In 1791, Johann Schweigger built the first working galvanometer, coiling a wire around a magnetic needle. #Poetry #Science #History #Electromagnetism #Galvanometer #Schweigger sharpgiving.com/thebookofsci...
Today's #OccupationOfTheDay is...FAULT FINDER:
"in [electrical] test room makes various tests (for insulation, resistance, etc.) on cable to ensure it reaches standard specification, using galvanometer."
Dict Occup'l Terms (1927)
📷 Galvanometer room, Edison lab (1915) c/o Wiki Commons
"in [electrical] test room makes various tests (for insulation, resistance, etc.) on cable to ensure it reaches standard specification, using galvanometer."
Dict Occup'l Terms (1927)
📷 Galvanometer room, Edison lab (1915) c/o Wiki Commons
March 12, 2025 at 9:30 AM
Today's #OccupationOfTheDay is...FAULT FINDER:
"in [electrical] test room makes various tests (for insulation, resistance, etc.) on cable to ensure it reaches standard specification, using galvanometer."
Dict Occup'l Terms (1927)
📷 Galvanometer room, Edison lab (1915) c/o Wiki Commons
"in [electrical] test room makes various tests (for insulation, resistance, etc.) on cable to ensure it reaches standard specification, using galvanometer."
Dict Occup'l Terms (1927)
📷 Galvanometer room, Edison lab (1915) c/o Wiki Commons
It reminded me that I have an antique mirror galvanometer to clean up and get working when I retire in a few years. Needs at least the ground glass scale and a 3V bulb. The old wire insulation probably needs TLC too
October 24, 2025 at 11:07 AM
It reminded me that I have an antique mirror galvanometer to clean up and get working when I retire in a few years. Needs at least the ground glass scale and a 3V bulb. The old wire insulation probably needs TLC too
Before the multimeter, there was the galvanometer. When Oersted's experiments were published and spread throughout, men from every corner of Europe were trying to capitalize on the discovery. Learn more in this Digikey Retro Electro article on the Galvanometer.
emedia.digikey.com/eMagazine-Vo...
emedia.digikey.com/eMagazine-Vo...
July 12, 2025 at 10:10 PM
Before the multimeter, there was the galvanometer. When Oersted's experiments were published and spread throughout, men from every corner of Europe were trying to capitalize on the discovery. Learn more in this Digikey Retro Electro article on the Galvanometer.
emedia.digikey.com/eMagazine-Vo...
emedia.digikey.com/eMagazine-Vo...
Nice argument. Unfortunately, I have already depicted myself as Thomson's Mirror Galvanometer, and you as Whitehouse's Electromagnetic Steelyard.
December 31, 2025 at 10:14 PM
Nice argument. Unfortunately, I have already depicted myself as Thomson's Mirror Galvanometer, and you as Whitehouse's Electromagnetic Steelyard.
William Thomson (a.k.a. Lord Kelvin) died #OnThisDay in 1907. In today's #ScientistOfTheDay post, Bill Ashworth describes how Thomson contributed to the construction of the first transatlantic telegraph cable.
www.lindahall.org/about/news/s...
#histSTM #histtech #physics #telecom 🗃️ 📜
www.lindahall.org/about/news/s...
#histSTM #histtech #physics #telecom 🗃️ 📜
December 17, 2024 at 2:06 PM
William Thomson (a.k.a. Lord Kelvin) died #OnThisDay in 1907. In today's #ScientistOfTheDay post, Bill Ashworth describes how Thomson contributed to the construction of the first transatlantic telegraph cable.
www.lindahall.org/about/news/s...
#histSTM #histtech #physics #telecom 🗃️ 📜
www.lindahall.org/about/news/s...
#histSTM #histtech #physics #telecom 🗃️ 📜
Before there were multimeters, there was the galvanometer. Born from Ørsted’s magnetic needle experiment and refined by Schweigger, Ampère, and Ohm. This is the story of the Galvanometer. #RetroElectro @Digikey
emedia.digikey.com/eMagazine-Vo...
emedia.digikey.com/eMagazine-Vo...
June 28, 2025 at 10:10 PM
Before there were multimeters, there was the galvanometer. Born from Ørsted’s magnetic needle experiment and refined by Schweigger, Ampère, and Ohm. This is the story of the Galvanometer. #RetroElectro @Digikey
emedia.digikey.com/eMagazine-Vo...
emedia.digikey.com/eMagazine-Vo...
Before there were multimeters, there was the galvanometer. Born from Ørsted’s magnetic needle experiment and refined by Schweigger, Ampère, and Ohm. This is the story of the Galvanometer. #RetroElectro
emedia.digikey.com/eMagazine-Vo...
emedia.digikey.com/eMagazine-Vo...
June 17, 2025 at 9:50 PM
Before there were multimeters, there was the galvanometer. Born from Ørsted’s magnetic needle experiment and refined by Schweigger, Ampère, and Ohm. This is the story of the Galvanometer. #RetroElectro
emedia.digikey.com/eMagazine-Vo...
emedia.digikey.com/eMagazine-Vo...
TRIANGULAR GALVANOMETER CONDEMNED; ZÜRICH GRADERS REFUSE THE SQUARE
Institute's new three-coil instrument reads honeydew spikes along a 60° lattice, yielding vintages no rectangular meter can price. Cellarmen strike, citing 14 readings that arrived before the sample.
Institute's new three-coil instrument reads honeydew spikes along a 60° lattice, yielding vintages no rectangular meter can price. Cellarmen strike, citing 14 readings that arrived before the sample.
September 24, 2026 at 9:30 PM
TRIANGULAR GALVANOMETER CONDEMNED; ZÜRICH GRADERS REFUSE THE SQUARE
Institute's new three-coil instrument reads honeydew spikes along a 60° lattice, yielding vintages no rectangular meter can price. Cellarmen strike, citing 14 readings that arrived before the sample.
Institute's new three-coil instrument reads honeydew spikes along a 60° lattice, yielding vintages no rectangular meter can price. Cellarmen strike, citing 14 readings that arrived before the sample.
... like this: 🧐. He noticed that when it dangled, it cast crazy reflections around the room.
He put a mirror on the coin, hung the whole thing from a silken thread borrowed from his niece's best dress.
As it moved in response to the signal, it cast a reflection on the wall opposite.
He put a mirror on the coin, hung the whole thing from a silken thread borrowed from his niece's best dress.
As it moved in response to the signal, it cast a reflection on the wall opposite.
Lord Kelvin's mirror galvanometer with lamp and stand, 1858. | Science Museum Group Collection
collection.sciencemuseumgroup.org.uk
October 23, 2025 at 11:58 PM
... like this: 🧐. He noticed that when it dangled, it cast crazy reflections around the room.
He put a mirror on the coin, hung the whole thing from a silken thread borrowed from his niece's best dress.
As it moved in response to the signal, it cast a reflection on the wall opposite.
He put a mirror on the coin, hung the whole thing from a silken thread borrowed from his niece's best dress.
As it moved in response to the signal, it cast a reflection on the wall opposite.
Resistance is futile ⚡ You Shall Be assimilated 🔌
Wheatstone Bridge! A classic derivation to show that we can determine the resistance of a resistor using two known resistors, a variable resistor and galvanometer!
#physics
Wheatstone Bridge! A classic derivation to show that we can determine the resistance of a resistor using two known resistors, a variable resistor and galvanometer!
#physics
December 12, 2024 at 10:53 PM
Resistance is futile ⚡ You Shall Be assimilated 🔌
Wheatstone Bridge! A classic derivation to show that we can determine the resistance of a resistor using two known resistors, a variable resistor and galvanometer!
#physics
Wheatstone Bridge! A classic derivation to show that we can determine the resistance of a resistor using two known resistors, a variable resistor and galvanometer!
#physics
Does anybody here know how I can get my hands on a late 19th century mirrored galvanometer?
January 24, 2025 at 2:00 PM
Does anybody here know how I can get my hands on a late 19th century mirrored galvanometer?
... MIRROR GALVANOMETER.
Electrical impulses move a mirror which redirects a laser beam that makes the planetarium come alive with 1970's classic rock music.
So Lord Kelvin invented the laser light show, he just got a bit ahead of the music (& lasers).
Who would have gone to "CANDLE TCHAIKOVSKY"?
Electrical impulses move a mirror which redirects a laser beam that makes the planetarium come alive with 1970's classic rock music.
So Lord Kelvin invented the laser light show, he just got a bit ahead of the music (& lasers).
Who would have gone to "CANDLE TCHAIKOVSKY"?
Arduino Laser Show With Real Galvos
Arduino Laser Show With Real Galvos: In this project we use an Arduino UNO/Nano to run a laser show with a laser pointer. We are using real galvos (galvanometers) like in commercial laser projectors, ...
www.instructables.com
October 23, 2025 at 11:58 PM
... MIRROR GALVANOMETER.
Electrical impulses move a mirror which redirects a laser beam that makes the planetarium come alive with 1970's classic rock music.
So Lord Kelvin invented the laser light show, he just got a bit ahead of the music (& lasers).
Who would have gone to "CANDLE TCHAIKOVSKY"?
Electrical impulses move a mirror which redirects a laser beam that makes the planetarium come alive with 1970's classic rock music.
So Lord Kelvin invented the laser light show, he just got a bit ahead of the music (& lasers).
Who would have gone to "CANDLE TCHAIKOVSKY"?
This is THE galvanometer that was used to receive the Queen's Message to President Buchanan on the first trans-Atlantic cable.
June 21, 2026 at 1:15 PM
This is THE galvanometer that was used to receive the Queen's Message to President Buchanan on the first trans-Atlantic cable.
Electromagnetism:
On this day in history, 194 years ago, October 28, 1831, Michael Faraday created the first small electrical transformer in his laboratory by winding copper wires around an iron ring and connecting a battery to one wire and a galvanometer to another. (1/4)
On this day in history, 194 years ago, October 28, 1831, Michael Faraday created the first small electrical transformer in his laboratory by winding copper wires around an iron ring and connecting a battery to one wire and a galvanometer to another. (1/4)
October 28, 2025 at 7:30 PM
Electromagnetism:
On this day in history, 194 years ago, October 28, 1831, Michael Faraday created the first small electrical transformer in his laboratory by winding copper wires around an iron ring and connecting a battery to one wire and a galvanometer to another. (1/4)
On this day in history, 194 years ago, October 28, 1831, Michael Faraday created the first small electrical transformer in his laboratory by winding copper wires around an iron ring and connecting a battery to one wire and a galvanometer to another. (1/4)
like, the further I get into this paper, the more it starts to sound like Sam Altman's been spending years and billions of dollars building hotter and heavier electromagnetic steelyards, and Percepta here has just invented the mirror galvanometer
The dumbest guy in history | Fool Time, Part 4 of 4
YouTube video by Secret Base
youtu.be
March 13, 2026 at 11:34 AM
like, the further I get into this paper, the more it starts to sound like Sam Altman's been spending years and billions of dollars building hotter and heavier electromagnetic steelyards, and Percepta here has just invented the mirror galvanometer