@charmstrange9.bsky.social
Haifa, Israel. I love mental algebra
Reposted
The idea of QFT was already around, of course, but Dirac and others had thought of the electron field ψ as a "relativistic wave function," not as a field to be quantized. It was Pauli & Weisskopf who set things straight once and for all.
link.springer.com/chapter/10.1...
link.springer.com/chapter/10.1...
Über die Quantisierung der skalaren relativistischen Wellengleichung
In der vorliegenden Arbeit wird die konsequente Anwendung des Heisenberg-Pauli’schen Formalismus der Quantisierung der Wellenfelder auf die skalare relativistische Wellengleiehung für Mater...
link.springer.com
November 30, 2025 at 9:01 PM
The idea of QFT was already around, of course, but Dirac and others had thought of the electron field ψ as a "relativistic wave function," not as a field to be quantized. It was Pauli & Weisskopf who set things straight once and for all.
link.springer.com/chapter/10.1...
link.springer.com/chapter/10.1...
Reposted
1988 interview with physicist Victor Weisskopf. We overlapped at MIT when he was emeritus and I was a postdoc, but I never really chatted with him (because I'm an idiot). In 1934 he and Wolfgang Pauli wrote the first paper insisting that everything is quantum fields!
www.youtube.com/watch?v=utZY...
www.youtube.com/watch?v=utZY...
Conversations with History: Victor F. Weisskopf
YouTube video by University of California Television (UCTV)
www.youtube.com
November 30, 2025 at 8:59 PM
1988 interview with physicist Victor Weisskopf. We overlapped at MIT when he was emeritus and I was a postdoc, but I never really chatted with him (because I'm an idiot). In 1934 he and Wolfgang Pauli wrote the first paper insisting that everything is quantum fields!
www.youtube.com/watch?v=utZY...
www.youtube.com/watch?v=utZY...
Reposted
Voyager 1 is almost one light-day from Earth. The intrepid #spacecraft will cross a major distance milestone in November 2026 - 16.1 billion miles. #Voyager1 #lightday
Link for more information: www.popsci.com/science/voya...
Link for more information: www.popsci.com/science/voya...
November 25, 2025 at 11:39 PM
Voyager 1 is almost one light-day from Earth. The intrepid #spacecraft will cross a major distance milestone in November 2026 - 16.1 billion miles. #Voyager1 #lightday
Link for more information: www.popsci.com/science/voya...
Link for more information: www.popsci.com/science/voya...
Reposted
"The Many Hidden Worlds of Quantum Mechanics," my lecture series for the Great Courses (24 half-hour lectures), is still available on Prime video for a few days! Tell your family that watching football on Thanksgiving is hopelessly uncool.
www.amazon.com/gp/video/det...
www.amazon.com/gp/video/det...
November 26, 2025 at 2:14 PM
"The Many Hidden Worlds of Quantum Mechanics," my lecture series for the Great Courses (24 half-hour lectures), is still available on Prime video for a few days! Tell your family that watching football on Thanksgiving is hopelessly uncool.
www.amazon.com/gp/video/det...
www.amazon.com/gp/video/det...
Reposted
Vaccines DO NOT cause autism - there is extensive research showing this. Resurrecting old, discredited, fraudulent work is shameful.
Vaccine-preventable illnesses are serious - this is going to cause real harms.
This is dangerous & disappointing.
Vaccine-preventable illnesses are serious - this is going to cause real harms.
This is dangerous & disappointing.
November 21, 2025 at 11:40 PM
Vaccines DO NOT cause autism - there is extensive research showing this. Resurrecting old, discredited, fraudulent work is shameful.
Vaccine-preventable illnesses are serious - this is going to cause real harms.
This is dangerous & disappointing.
Vaccine-preventable illnesses are serious - this is going to cause real harms.
This is dangerous & disappointing.
Reposted
RFK Jr unilaterally turned CDC into an anti-vaccine propaganda site.
Do people forget that he has made millions of dollars demonizing vaccines and autism for the last 25 years?
This is his business model.
Watch:
youtu.be/ZZCutMBhjpg?...
Do people forget that he has made millions of dollars demonizing vaccines and autism for the last 25 years?
This is his business model.
Watch:
youtu.be/ZZCutMBhjpg?...
Remember when RFK Jr profited off the lie that vaccines cause autism? | excerpts from @WIRED
YouTube video by Andrea Love, PhD
youtu.be
November 23, 2025 at 4:53 PM
RFK Jr unilaterally turned CDC into an anti-vaccine propaganda site.
Do people forget that he has made millions of dollars demonizing vaccines and autism for the last 25 years?
This is his business model.
Watch:
youtu.be/ZZCutMBhjpg?...
Do people forget that he has made millions of dollars demonizing vaccines and autism for the last 25 years?
This is his business model.
Watch:
youtu.be/ZZCutMBhjpg?...
Reposted
A picture of the moon I took on a lovely clear night a couple of weeks ago!
#photography #astronomy #moon #astrophotography #photooftheday
#photography #astronomy #moon #astrophotography #photooftheday
November 17, 2025 at 11:17 AM
A picture of the moon I took on a lovely clear night a couple of weeks ago!
#photography #astronomy #moon #astrophotography #photooftheday
#photography #astronomy #moon #astrophotography #photooftheday
Reposted
Mindscape Ask Me Anything | November 2025. We dive into wealth inequality, superintelligent AI risks, how to judge nonsense, quantum entanglement, and more. Patreon supporters get a picture of Caliban and a skeleton. #MindscapePodcast
www.preposterousuniverse.com/podcast/2025...
www.preposterousuniverse.com/podcast/2025...
November 17, 2025 at 1:00 PM
Mindscape Ask Me Anything | November 2025. We dive into wealth inequality, superintelligent AI risks, how to judge nonsense, quantum entanglement, and more. Patreon supporters get a picture of Caliban and a skeleton. #MindscapePodcast
www.preposterousuniverse.com/podcast/2025...
www.preposterousuniverse.com/podcast/2025...
Reposted
Next up in the talks from the #NaturalPhilosophy Symposium: Nima Arkani-Hamed offers Two Cheers for Shut Up and Calculate. (He previously was giving three cheers, but he's changed his mind just a bit.) Comments from me, of all people.
www.youtube.com/watch?v=72QL...
www.youtube.com/watch?v=72QL...
October 23, 2025 at 3:16 PM
Next up in the talks from the #NaturalPhilosophy Symposium: Nima Arkani-Hamed offers Two Cheers for Shut Up and Calculate. (He previously was giving three cheers, but he's changed his mind just a bit.) Comments from me, of all people.
www.youtube.com/watch?v=72QL...
www.youtube.com/watch?v=72QL...
Reposted
About to talk with a lovely group of philosophers and physicists at @perimeterinstitute.ca about the century-long debate over the foundations of #quantum physics! Watch live here: www.youtube.com/live/eIXSmhg...
100 Years of Quantum: Perspectives on its Past, Present, and Future
YouTube video by Perimeter Institute for Theoretical Physics
www.youtube.com
October 22, 2025 at 10:48 PM
About to talk with a lovely group of philosophers and physicists at @perimeterinstitute.ca about the century-long debate over the foundations of #quantum physics! Watch live here: www.youtube.com/live/eIXSmhg...
Reposted
Researchers in Leeds have joined experts from across the world in warning that Earth is reaching the first of many climate tipping points that will cause catastrophic harm without urgent action.
#climatecrisis #tippingpoint #auspol www.leeds.ac.uk/news/article...
#climatecrisis #tippingpoint #auspol www.leeds.ac.uk/news/article...
‘New reality’ as world reaches first climate tipping point
Researchers in Leeds have joined experts from across the world in warning that Earth is reaching the first of many climate tipping points that will cause catastrophic harm without urgent action.
www.leeds.ac.uk
October 13, 2025 at 10:38 AM
Researchers in Leeds have joined experts from across the world in warning that Earth is reaching the first of many climate tipping points that will cause catastrophic harm without urgent action.
#climatecrisis #tippingpoint #auspol www.leeds.ac.uk/news/article...
#climatecrisis #tippingpoint #auspol www.leeds.ac.uk/news/article...
Reposted
Mindscape 331 | Solo: Fine-Tuning, God, and the Multiverse. In which I shamelessly steal material from the #PhilosophyOfCosmology course I am teaching to talk about some big questions. #MindscapePodcast
www.preposterousuniverse.com/podcast/2025...
www.preposterousuniverse.com/podcast/2025...
October 6, 2025 at 11:42 AM
Mindscape 331 | Solo: Fine-Tuning, God, and the Multiverse. In which I shamelessly steal material from the #PhilosophyOfCosmology course I am teaching to talk about some big questions. #MindscapePodcast
www.preposterousuniverse.com/podcast/2025...
www.preposterousuniverse.com/podcast/2025...
Reposted
Tylenol does not cause autism. Vaccines do not cause autism. Any asshole telling you otherwise is a harmful hack that will absolutely get people killed.
September 22, 2025 at 11:59 PM
Tylenol does not cause autism. Vaccines do not cause autism. Any asshole telling you otherwise is a harmful hack that will absolutely get people killed.
Reposted
An appeal to help preserve a unique archive of recorded scientific talks.
Nobel Prize Laureate Roger Penrose, Yvette Fuentes, and myself, request your help in order to save an archive of incredible scientific and historical value. Please raise awareness by *sharing*, or *contribute*:
www.crowdfunder.co.uk/p/roger-penr...
www.crowdfunder.co.uk/p/roger-penr...
Roger Penrose & Friends Appeal for Unique Archive
To digitise and restore the worlds largest collection of audio and visual recordings within the scientific community, spanning over 50 years
www.crowdfunder.co.uk
September 13, 2025 at 8:42 PM
An appeal to help preserve a unique archive of recorded scientific talks.
Reposted
Your periodic reminder that mRNA vaccines are a scientific and public health game-changer. Those that have been approved have passed stringent efficacy and safety checks. They protect you and your child against potentially fatal diseases. You may, however, get a sore arm.
September 3, 2025 at 10:55 AM
Your periodic reminder that mRNA vaccines are a scientific and public health game-changer. Those that have been approved have passed stringent efficacy and safety checks. They protect you and your child against potentially fatal diseases. You may, however, get a sore arm.
Reposted
Great new article about the cool stuff we're finding (improbably) alive deep inside Earth's crust! Nice work, @laurapoppick.bsky.social at @quantamagazine.bsky.social www.quantamagazine.org/the-pursuit-...
The Pursuit of Life Where It Seems Unimaginable | Quanta Magazine
A decade ago, Karen Lloyd discovered single-celled microbes living beneath the seafloor. Now she studies how they can survive in Earth’s crust, possibly for hundreds or thousands of years, and push li...
www.quantamagazine.org
August 20, 2025 at 7:54 PM
Great new article about the cool stuff we're finding (improbably) alive deep inside Earth's crust! Nice work, @laurapoppick.bsky.social at @quantamagazine.bsky.social www.quantamagazine.org/the-pursuit-...
Reposted
Being against vaccines when diseases are rampant (measles, Covid) is like adding chlorine to the gene pool. Darwin is watching.
August 19, 2025 at 12:38 AM
Being against vaccines when diseases are rampant (measles, Covid) is like adding chlorine to the gene pool. Darwin is watching.
Reposted
In which a well-timed talk by @seanmcarroll.bsky.social gets me to write about quantum foundations research and its importance to physics overall: open.substack.com/pub/chadorze...
On Quantum Foundations
Today in "Evergreen Post Topics"
open.substack.com
August 4, 2025 at 2:12 PM
In which a well-timed talk by @seanmcarroll.bsky.social gets me to write about quantum foundations research and its importance to physics overall: open.substack.com/pub/chadorze...
Sculpture of a water (polar) molecule in Jerusalem 🇮🇱
July 18, 2025 at 11:09 PM
Sculpture of a water (polar) molecule in Jerusalem 🇮🇱
Reposted
Is it time to bring back natural philosophy? ABC Radio chats with Sandra Mitchell, Alan Guth, Melanie Mitchell @melaniemitchell.bsky.social, Anil Seth @anilseth.bsky.social, David Albert and me, as produced by @danfalk.bsky.social.
www.abc.net.au/listen/progr...
www.abc.net.au/listen/progr...
Is it time to bring back natural philosophy? - ABC listen
Once upon a time, what we now call scientists were known as "natural philosophers". These were people who studied the physical universe through observation and logic, using philosophical methods and r...
www.abc.net.au
July 18, 2025 at 1:34 PM
Is it time to bring back natural philosophy? ABC Radio chats with Sandra Mitchell, Alan Guth, Melanie Mitchell @melaniemitchell.bsky.social, Anil Seth @anilseth.bsky.social, David Albert and me, as produced by @danfalk.bsky.social.
www.abc.net.au/listen/progr...
www.abc.net.au/listen/progr...
Reposted
💤👁️ Hey... Happy Friday. 💤
a cartoon cat is laying down on the floor
ALT: a cartoon cat is laying down on the floor
media.tenor.com
July 4, 2025 at 8:01 AM
💤👁️ Hey... Happy Friday. 💤
Reposted
#OTD in 1868, Henrietta Swan Leavitt was born in Lancaster, Massachusetts.
Her story is an example of how passion and determination can overcome significant social and personal barriers.
I reshare a long thread of mine about this great woman and astronomer.
🔭 🧪 #HistSci #WomenInStem #HistAstro
Her story is an example of how passion and determination can overcome significant social and personal barriers.
I reshare a long thread of mine about this great woman and astronomer.
🔭 🧪 #HistSci #WomenInStem #HistAstro
1/n #WomenInSTEM 🔭🧪⚛️
12 December 1921: Henrietta Swan Leavitt, a great pioneer of modern astronomy, passed away.
Her name is not familiar to most people and she is certainly not as recognizable as Galileo, W. Herschel, or E. Hubble, even though it ought to be.⤵️
12 December 1921: Henrietta Swan Leavitt, a great pioneer of modern astronomy, passed away.
Her name is not familiar to most people and she is certainly not as recognizable as Galileo, W. Herschel, or E. Hubble, even though it ought to be.⤵️
July 4, 2025 at 2:32 PM
#OTD in 1868, Henrietta Swan Leavitt was born in Lancaster, Massachusetts.
Her story is an example of how passion and determination can overcome significant social and personal barriers.
I reshare a long thread of mine about this great woman and astronomer.
🔭 🧪 #HistSci #WomenInStem #HistAstro
Her story is an example of how passion and determination can overcome significant social and personal barriers.
I reshare a long thread of mine about this great woman and astronomer.
🔭 🧪 #HistSci #WomenInStem #HistAstro
Reposted
🧵
"The soul is the mirror of an indestructible universe."
— Gottfried W. Leibniz, 'Monadology'.
A great mathematician, a great philosopher, and much more, Leibniz was born #OTD in 1646.
A biography➡️ mathshistory.st-andrews.ac.uk/Biographies/...
🧪 ⚛️ #Science #HistSci #Maths #PhilSci
"The soul is the mirror of an indestructible universe."
— Gottfried W. Leibniz, 'Monadology'.
A great mathematician, a great philosopher, and much more, Leibniz was born #OTD in 1646.
A biography➡️ mathshistory.st-andrews.ac.uk/Biographies/...
🧪 ⚛️ #Science #HistSci #Maths #PhilSci
July 1, 2025 at 4:27 PM
Reposted
Wow! For the first time ever, the James Webb Space Telescope has revealed an exoplanet by directly imaging it. The newfound world has a mass similar to Saturn and orbits inside the debris disk surrounding a very young star just 111 light years away. via @nature.com
www.nature.com/articles/s41...
www.nature.com/articles/s41...
Evidence for a sub-Jovian planet in the young TWA 7 disk - Nature
Using the James Webb Space Telescope's Mid-Infrared Instrument, a study reports evidence for a direct detection of a cold, sub-Jupiter-mass planet in the disk of the star TWA 7.
www.nature.com
June 28, 2025 at 8:19 PM
Wow! For the first time ever, the James Webb Space Telescope has revealed an exoplanet by directly imaging it. The newfound world has a mass similar to Saturn and orbits inside the debris disk surrounding a very young star just 111 light years away. via @nature.com
www.nature.com/articles/s41...
www.nature.com/articles/s41...