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Paul Halpern

@phalpern.bsky.social
3.8K followers 3.7K following 753 posts

Physicist and Science Writer. Author of nineteen books, most recently THE GREAT ATOM DEBATE: ERNST MACH, LUDWIG BOLTZMANN, AND THE BATTLE FOR THE ESSENCE OF REALITY greatatomdebate.com

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Paul Halpern @phalpern.bsky.social · 25/08/2026
In the golden age of Vienna, two brilliant thinkers vied to shape the future of physics. Their passionate struggle led directly to the quantum and relativity revolutions. History of science at its most gripping! THE GREAT ATOM DEBATE Preorder now www.amazon.com/gp/product/1... greatatomdebate.com
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Paul Halpern @phalpern.bsky.social · 9h
'I have never belonged wholeheartedly to a country, a state, nor to a circle of friends, nor even to my own family.' -Albert Einstein www.commentary.org/articles/c-s... #Einstein #science #physics
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Paul Halpern @phalpern.bsky.social · 9h
In 1954, Albert Einstein was so upset by the Oppenheimer hearing and the McCarthy era attacks on the loyalty of scientists, that he said that if he were just starting out he'd become a plumber or peddler, instead of a physicist. He soon got an invitation to join a plumbing firm! #Einstein #science
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Paul Halpern @phalpern.bsky.social · 9h
'We live on an island surrounded by a sea of ignorance. As our island of knowledge grows, so does the shore of our ignorance.' -John Archibald Wheeler #science #physics #JohnWheeler
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Paul Halpern @phalpern.bsky.social · 27/09/2026
'It is nothing short of a miracle that modern methods of instruction have not yet entirely strangled the holy curiosity of inquiry.' -Albert Einstein #Einstein #science #physics
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Paul Halpern @phalpern.bsky.social · 18/09/2026
Thrilled that Nobel laureate astrophysicist Jim Peebles has endorsed THE GREAT ATOM DEBATE, calling it "a fascinating account of the roles Ernst Mach and Ludwig Boltzmann played in the establishment of modern physics." Preorder now: www.amazon.com/Great-Atom-D... bookshop.org/p/books/the-...
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Paul Halpern @phalpern.bsky.social · 27/09/2026
'What fire there was in his playing!' Hans Byland, Albert Einstein's musical classmate at the Aarau school in Switzerland, recalling Einstein's gorgeous renditions of Mozart and others on the violin. (from Einstein: A Life, by Denis Brian) #Einstein
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Paul Halpern @phalpern.bsky.social · 19/08/2026
Delighted to announce that award-winning, accomplished astronomer and writer Dr. Caleb Scharf @calebscharf.bsky.social has kindly endorsed The Great Atom Debate, calling it "a gripping, meticulously researched history." Very grateful! greatatomdebate.com #BookSky #science #sciencebooks #physics
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Paul Halpern @phalpern.bsky.social · 26/09/2026
Remarkable letter from Thomas Jefferson to scientist David Rittenhouse dated Sept 18, 1787 (the final day of the US Constitutional Convention) listed for sale by the Raab Collection. Jefferson told Rittenhouse that he sent him a chemistry book by Fourcroy. www.raabcollection.com/presidential...
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Paul Halpern @phalpern.bsky.social · 27/09/2026
The eight "makers of universes" according to renowned Irish playwright George Bernard Shaw: Pythagoras Aristotle Ptolemy Copernicus Galileo Kepler Newton Einstein nytimes.com/1930/11/02/a... #science #physics #astronomy
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Paul Halpern @phalpern.bsky.social · 27/09/2026
'What fire there was in his playing!' Hans Byland, Albert Einstein's musical classmate at the Aarau school in Switzerland, recalling Einstein's gorgeous renditions of Mozart and others on the violin. (from Einstein: A Life, by Denis Brian) #Einstein
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Paul Halpern @phalpern.bsky.social · 27/09/2026
A revolutionary thinker and his aperiodic tiles Nobel laureate Roger Penrose, photographed standing on his eponymously tiled entrance to the University of Oxford's Mathematical Institute, 2021 (Royal Society)
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Roger Highfield @rogerhighfield.bsky.social · 23/09/2026
A minute with … Graham Farmelo, Stephen Hawking’s official biographer rogerhighfield.substack.com/p/a-minute-w...
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Helen Pearson @helenpearson.bsky.social · 23/09/2026
NEW: There are widespread concerns that AI will reduce our critical-thinking skills. My story for @nature.com today looks at how to maintain those skills — and teach them to students. I found some fascinating science on critical thinking + useful tips for us all 🧠 www.nature.com/articles/d41...
nature.com
How to stay smart in the age of AI: the science of critical thinking
There is growing concern that AI can blunt memory and reasoning. But science shows ways to keep the brain sharp.
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Ethan Siegel @startswithabang.bsky.social · 22/09/2026
This discovery is why Einstein was history’s greatest physicist Einstein made a whole lot of discoveries in his life, with many others very close to many of his breakthroughs. But without Einstein, General Relativity may never have come about at all. bigthink.com/starts-with-... #space #astro
bigthink.com
This discovery is why Einstein was history's greatest physicist
Although many of Einstein's papers revolutionized physics, there's one Einsteinian advance, generally, that towers over all the rest.
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Ethan Siegel @startswithabang.bsky.social · 24/09/2026
“Donnie Darko” offers a time travel lesson you won’t find elsewhere The movie "Donnie Darko" first came out 25 years ago. How does the time travel in the story stack up against what physics actually understands? bigthink.com/starts-with-... #space #astro #physics #timetravel #movies
bigthink.com
"Donnie Darko" offers a time travel lesson you won't find elsewhere
Most time travel stories involve changing the past to create a better future. Donnie Darko subverts that expectation, and a whole lot more.
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Paul Halpern @phalpern.bsky.social · 21/12/2024
Ambivalent worlds: John Wheeler’s hesitant parentage of the multiverse By Paul Halpern ilnuovosaggiatore.sif.it/article/383 #histstm #physics #science #sciencehistory
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Catlin Lee @catlinyy.bsky.social · 05/06/2025
These popular physics books are really enjoyable and easy to read. The author explains the strange concepts well, and the ideas sing along with what I learned in classes, but the classes are not required to understand them. I love the book covers too! #booksky #science
Synchronicity: The Epic Quest To Understand The Quantum Nature of Cause and Effect by Paul HalpernThe Allure of the Multiverse: Extra Dimensions, Other Worlds, and Parallel Universes by Paul Halpern
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Paul Halpern @phalpern.bsky.social · 07/09/2026
'No man achieves a hero's worldly fame Who has not forced himself with all his power; And as it caused his aching heart to tremble His valiant deed will live in song immortal.. Was he a king, a rich man or the like? He was a human's son beset with pain!' -Ludwig Boltzmann From "Beethoven in Heaven"
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Paul Halpern @phalpern.bsky.social · 16/09/2026
The only known photograph of Albert Einstein explaining his famous equation 'E = m c^2' on a blackboard. He was giving a public talk at the Carnegie Institute of Technology (now Carnegie Mellon University) in Pittsburgh, PA, USA, on December 28, 1934. cmu.edu/news/stories... #Einstein #science
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lnz @helix7293.bsky.social · 07/09/2026
Can't wait to read it!
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Philip Ball @philipcball.bsky.social · 27/08/2026
Congratulations Paul - it looks great!
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Chanda Prescod-Weinstein 🌌 @chanda.blacksky.app · 07/09/2026
This looks exciting!!
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Paul Halpern @phalpern.bsky.social · 25/09/2026
The combined insights of English chemist Michael Faraday and Scottish physicist James Clerk Maxwell helped illuminate the world, by showing that light is an electromagnetic wave.🏴󠁧󠁢󠁥󠁮󠁧󠁿🏴󠁧󠁢󠁳󠁣󠁴󠁿🇬🇧💡 #physics #chemistry #science
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Paul Halpern @phalpern.bsky.social · 21/09/2026
Statue of brilliant Scottish physicist James Clerk Maxwell on George Street in Edinburgh. It features his beloved Irish terrier Toby, with whom he used to discuss scientific ideas. Toby seems to have been a loyal friend and good listener 🏴󠁧󠁢󠁳󠁣󠁴󠁿🇬🇧 edinburghnews.scotsman.com/whats-on/art... #Maxwell
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Paul Halpern @phalpern.bsky.social · 21/09/2026
We have to admire in humility the beautiful harmony of the structure of this world—as far as we can grasp it. And that is all. -Albert Einstein
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Iwan Rhys Morus @irmorus.bsky.social · 25/09/2026
The photograph's a composite, of course. Not even Tesla took that much of a risk for his showmanship!
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Paul Halpern @phalpern.bsky.social · 25/09/2026
Quantum Harmonies: Modern Physics and Music: From Pythagoras to string theory, explore the surprising connections between music and physics: www.pbs.org/wgbh/nova/ar...
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Paul Halpern @phalpern.bsky.social · 18/09/2026
Publishers Weekly praises THE GREAT ATOM DEBATE: "Halpern... delivers a solid account of two Austrian physicists who famously debated the existence of atoms... [I]ntriguing intellectual history... [and] an accessible look at a critical scientific era." www.publishersweekly.com/9781541607224
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Paul Halpern @phalpern.bsky.social · 26/09/2026
"May the spirit of Newton’s method give us the power to restore unison between physical reality and the profoundest characteristic of Newton’s teaching—strict causality." -Albert Einstein (Speech on the 200th anniversary of Newton’s death, 1927) #Einstein #Newton #science #physics
Albert Einstein in his 40s
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Paul Halpern @phalpern.bsky.social · 26/09/2026
On his 84th birthday, inventor Thomas Edison was interviewed by his friend Harvey Firestone, founder of Firestone tires Firestone asked Edison "What do you think of Einstein's theory?" Edison responded, "I don't think anything of Einstein's theory because I can't understand it" #Einstein #Edison
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Paul Halpern @phalpern.bsky.social · 26/09/2026
Remarkable letter from Thomas Jefferson to scientist David Rittenhouse dated Sept 18, 1787 (the final day of the US Constitutional Convention) listed for sale by the Raab Collection. Jefferson told Rittenhouse that he sent him a chemistry book by Fourcroy. www.raabcollection.com/presidential...
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Paul Halpern @phalpern.bsky.social · 25/09/2026
Albert Einstein, before, during, and after reading all of the books, magazines, and research articles in his extensive library 🤔 #Einstein #science #physics
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Paul Halpern @phalpern.bsky.social · 07/09/2026
'It was Ernst Mach who, in his History of Mechanics, upset [my] dogmatic faith [in Newtonian mechanics]... I see Mach's greatness in his incorruptible skepticism and independence.' -Albert Einstein #Einstein #Mach #GreatAtomDebate #science #physics
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Dr Space Junk (Alice Gorman) @drspacejunk.bsky.social · 13/05/2025
Looking out from behind Ernst Mach's eye socket. Who knew he was such an amazing artist? 🧪
pdimagearchive.org
‘Self-Portrait by Ernst Mach’ by Ernst Mach (1886)
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Paul Halpern @phalpern.bsky.social · 25/09/2026
Albert Einstein, before, during, and after reading all of the books, magazines, and research articles in his extensive library 🤔 #Einstein #science #physics
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Paul Halpern @phalpern.bsky.social · 25/09/2026
A good science book can spark so many interests and galvanize enthusiasm for the wonders of the natural world! Photo: Nikola Tesla reading in his laboratory, 1899 (Getty Images) #science #NikolaTesla #physics
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Paul Halpern @phalpern.bsky.social · 25/09/2026
'About your cat, Mr. Schrödinger — I have good news and bad news.' (Benjamin Schwartz, New Yorker)
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Paul Halpern @phalpern.bsky.social · 25/09/2026
Quantum Harmonies: Modern Physics and Music: From Pythagoras to string theory, explore the surprising connections between music and physics: www.pbs.org/wgbh/nova/ar...
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Paul Halpern @phalpern.bsky.social · 25/09/2026
The combined insights of English chemist Michael Faraday and Scottish physicist James Clerk Maxwell helped illuminate the world, by showing that light is an electromagnetic wave.🏴󠁧󠁢󠁥󠁮󠁧󠁿🏴󠁧󠁢󠁳󠁣󠁴󠁿🇬🇧💡 #physics #chemistry #science
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Paul Halpern @phalpern.bsky.social · 21/09/2026
We have to admire in humility the beautiful harmony of the structure of this world—as far as we can grasp it. And that is all. -Albert Einstein
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Paul Halpern @phalpern.bsky.social · 21/09/2026
Francisca Nneka Okeke, Professor of Physics at the University of Nigeria, received the L’Oreal-UNESCO for Women in Science Award for her significant contributions to the understanding of the ion currents in the upper atmosphere: web.archive.org/web/20170425... #NigerianScientists 🇳🇬
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Paul Halpern @phalpern.bsky.social · 21/09/2026
Statue of brilliant Scottish physicist James Clerk Maxwell on George Street in Edinburgh. It features his beloved Irish terrier Toby, with whom he used to discuss scientific ideas. Toby seems to have been a loyal friend and good listener 🏴󠁧󠁢󠁳󠁣󠁴󠁿🇬🇧 edinburghnews.scotsman.com/whats-on/art... #Maxwell
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Paul Halpern @phalpern.bsky.social · 21/09/2026
Albert Einstein's connections to Scotland 🏴󠁧󠁢󠁳󠁣󠁴󠁿: Einstein was inspired by work of Scottish physicist James Clerk Maxwell. Relativity has deep links with Maxwell's electromagnetism. In 1933, University of Glasgow awarded him an honorary degree and he spoke about general relativity. #physics #science
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Paul Halpern @phalpern.bsky.social · 21/09/2026
Albert Einstein's final research assistant, Israeli physicist Dr. Bruria Kaufman, reported the results of their joint calculations on a unified field theory at an international conference in Bern, Switzerland several months after his death. #WomenInSTEM #IsraeliScience #Einstein #physics
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Paul Halpern @phalpern.bsky.social · 21/09/2026
Palestinian neuroscientist Thabat Al-Khatib works tirelessly at the University of Aberdeen, Scotland, researching possible medications to treat Alzheimer's disease, while serving as a role model for young Palestinian scientists: aaup.edu/Alumni-Affai... \ #WomenInSTEM #PalestinianScience #Science
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Paul Halpern @phalpern.bsky.social · 21/09/2026
Acclaimed physicists Fred Hoyle and Richard Feynman converse in Ripponden, Yorkshire, England. Feynman's wife Gweneth was originally from that region. From "Take the World from Another Point of View," Yorkshire Television. archives-dc.library.caltech.edu/islandora/ob... #histSTM #Feynman #Hoyle
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Paul Halpern @phalpern.bsky.social · 21/09/2026
Quantum physicist Paul Dirac as a pensive child in Bristol, England #Dirac #quantum #physics #science
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Paul Halpern @phalpern.bsky.social · 21/09/2026
Albert Einstein's landing card, when he travelled by ferry from Ostend, Belgium to Dover, England in May 1933 to escape Nazi threats. The card was stored for 80 years at the UK Border Agency at Heathrow Airport before historians discovered it: migrationmuseum.org/einstein-lan... #Einstein
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Paul Halpern @phalpern.bsky.social · 16/09/2026
'I cannot seriously believe in [quantum mechanics] because the theory cannot be reconciled with the idea that physics should represent a reality in space and time, free from spooky actions at a distance.' -Albert Einstein to Max Born March 3, 1947 #histSTM
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