A holiday gift for those who have it all The Allure of the Multiverse An extraordinary voyage into the history of parallel universes, higher dimensions, and time travel in speculative science and imaginative fiction. Available at: amazon.com/Allure-Multi... hachettebookgroup.com/titles/paul-...

Richard Feynman on String Theory: 'I have noticed when I was younger that a lot of old men in the field couldn’t understand new ideas very well... I’m an old man now, and these are new ideas, and they look crazy to me, and they look like they’re on the wrong track.' #Physics #Feynman #Science

I swore an oath to the Constitution in 1986. I've upheld it through 25 years of service and every day since I retired. If Trump's trying to intimidate me, it won’t work. I’ve given too much to our country to be silenced by bullies who care more about power than the Constitution.

The President doesn't want you standing up and speaking out against him, so he's coming after me to intimidate all of us. But I won't back down — and neither should you.

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

'I rarely think in words at all. A thought comes, and I may try to express it in words afterwards.' -Albert Einstein (From a conversation with psychologist Max Wertheimer in 1916) #Einstein #science #physics #ScienceSky

Today is UK publication day for my new book *Discordance: The Troubled History of the Hubble Constant* To celebrate, I’m posting an essay on the trailblazing women who transformed our understanding of the universe. open.substack.com/pub/jimbaggo...

"Baggott’s book is a masterpiece that combines depth with clarity and comprehensiveness with readability,” says renowned historian of physics Helge Kragh in his review of my new book ‘Discordance’. 😳 www.nature.com/articles/d41...

Tributes at Bryn Mawr College to the brilliant mathematician Emmy Noether, who spent her final years there. Noether revolutionized the methods of modern physics by identifying continuous symmetry groups with conservation laws. The third image is her grave marker. #Science #Mathematics #Physics

Annual holiday tradition: Thanksgiving Turkey Feynman Diagram, drawn by particle physicist Yuhsin Tsai: quantumdiaries.org/2009/11/26/t... #HappyThanksgiving #LHC #physics

'Strange is our situation here upon earth. Each of us comes for a short visit, not knowing why, yet sometimes seeming to divine a purpose.. There is one thing we do know: that man is here for the sake of other men.. upon whose well-being our own happiness depends.' -Albert Einstein #ScienceSky

Pair it with a good Martini for a Christmas you won't forget. Great book.

Richard Feynman on String Theory: 'I have noticed when I was younger that a lot of old men in the field couldn’t understand new ideas very well... I’m an old man now, and these are new ideas, and they look crazy to me, and they look like they’re on the wrong track.' #Physics #Feynman #Science

A holiday gift for those who have it all The Allure of the Multiverse An extraordinary voyage into the history of parallel universes, higher dimensions, and time travel in speculative science and imaginative fiction. Available at: amazon.com/Allure-Multi... hachettebookgroup.com/titles/paul-...

The Allure of the Multiverse Expand your mind with a fantastic voyage into the strange history of parallel universes, higher dimensions, and time travel—from mystic musings to quantum conjectures and hidden realms beyond cosmic frontiers www.amazon.com/Allure-Multi...

'Strange is our situation here upon earth. Each of us comes for a short visit, not knowing why, yet sometimes seeming to divine a purpose.. There is one thing we do know: that man is here for the sake of other men.. upon whose well-being our own happiness depends.' -Albert Einstein #ScienceSky

Richard Feynman and Julian Schwinger, two of the recipients of the 1965 Nobel Prize in Physics and both New Yorkers, were intellectual rivals Schwinger would assert that he never used Feynman diagrams Feynman would pretend to students that he couldn't pronounce Schwinger's name #ScienceSky

Annual holiday tradition: Thanksgiving Turkey Feynman Diagram, drawn by particle physicist Yuhsin Tsai: quantumdiaries.org/2009/11/26/t... #HappyThanksgiving #LHC #physics

One of Albert Einstein's best friends in his later years was mathematician Kurt Gödel, who found a strange rotating universe model that allowed for backward time travel, and presented it to him on his birthday. Note that the idea was purely hypothetical, and has no known connection with reality.

Tributes at Bryn Mawr College to the brilliant mathematician Emmy Noether, who spent her final years there. Noether revolutionized the methods of modern physics by identifying continuous symmetry groups with conservation laws. The third image is her grave marker. #Science #Mathematics #Physics

'The existence and validity of human rights are not written in the stars.. A large part of history is therefore replete with the struggle for those rights.. in which a final victory can never be won. But to tire in that struggle would mean the ruin of society' -Albert Einstein #Einstein #Science

#MathSky #physics #astronomy It's great to find #scicomm specialist Paul Halpern on Bluesky! There are lots of good #scicomm accounts around, but Paul excels at being a storyteller. His books are fascinating, whether you are a STEM nerd or a nonscientist just looking for cocktail party topics.

Ambivalent worlds: John Wheeler’s hesitant parentage of the multiverse By Paul Halpern ilnuovosaggiatore.sif.it/article/383 #histstm #physics #science #sciencehistory

From the “Praise For Synchronicity” page of the book “Synchronicty” by Paul Halpern, PHD.

#RecommendedReading: “The Allure Of The Multiverse – Extra Dimensions, Other Worlds, and Parallel Universes” by Paul Halpern

"What's the multiverse?" Physicist Paul Halpern answers that question and explains why the far-out subject is so mesmerizing for scientists in the latest episode of the Fiction Science podcast. cosmiclog.com/2024/01/15/s...

Richard Feynman dressed as a Ladakhi monk, painted by Pasadena artist Sylvia Posner. The 'lightning bolt' he is clutching in his right hand resembles one of his scientific diagrams. More about the costume parties Feynman attended: medium.com/starts-with-... #Feynman #Halloween #science #physics

Albert Einstein never worked in the Manhattan Project to create a nuclear weapon. However, he did offer scientific advice to the U.S. Navy during World War II. Here's an image of Einstein discussing his defense research with naval officers in 1943. #Einstein #science #ScienceSky

Billionaires rapidly increase their wealth in the United States while poverty rises and life expectancy lowers. Meanwhile, military spending skyrockets, the federal deficit balloons, but relief for hunger is in limbo. Truly appalling: www.theguardian.com/us-news/2025... @marcuschown.bsky.social

'A wonder of this kind I experienced as a child of four or five years when my father showed me a compass. That this needle behaved in such a determined way did not at all fit [my preconceptions] ... This experience made a deep and lasting impression upon me.' -Albert Einstein #Einstein #Science

Albert Einstein never worked in the Manhattan Project to create a nuclear weapon. However, he did offer scientific advice to the U.S. Navy during World War II. Here's an image of Einstein discussing his defense research with naval officers in 1943. #Einstein #science #ScienceSky

The 400 richest Americans are now worth a record $6.6 trillion. The entire bottom 50% of America is worth just $4.2 trillion. Read that back. When 400 people control more wealth than half a country’s population, we have a very serious problem.

Billionaires rapidly increase their wealth in the United States while poverty rises and life expectancy lowers. Meanwhile, military spending skyrockets, the federal deficit balloons, but relief for hunger is in limbo. Truly appalling: www.theguardian.com/us-news/2025... @marcuschown.bsky.social

SPOOKY QUANTUM PHYSICS! 🎃👻 '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 #Halloween2025

Albert Einstein moved to the United States on October 17, 1933. Two weeks later was Halloween. When a group of girl trick-or-treaters knocked on his door that evening, Einstein came to the front porch and played the violin for them: capitalcentury.com/1933.html #HappyHalloween2025 #ScienceSky

Need a great costume idea this Halloween? Dress up as your favorite Feynman diagram! symmetrymagazine.org/article/octo... #HalloweenScience #happyhalloween2025 #Science #ScienceSky #Physics

Thinking about what to wear for Halloween? Nuclear shell model pioneer Maria Goeppert Mayer, the second woman to receive a Nobel Prize in Physics, shows off her wonderful bat costume (AIP ESVA) #Science #ScienceSky #Physics #Halloween #HappyHalloween

Richard Feynman dressed as a Ladakhi monk, painted by Pasadena artist Sylvia Posner. The 'lightning bolt' he is clutching in his right hand resembles one of his scientific diagrams. More about the costume parties Feynman attended: medium.com/starts-with-... #Feynman #Halloween #science #physics

International Einstein: Four places where the brilliant physicist lived throughout his life: Zürich (as a student attending the ETH) Bern (as a patent officer) Berlin (as a professor; original building was destroyed) Princeton (in his later years) All photos by Paul Halpern #Einstein

Thank you, Paul.

Poe understood the expanding Universe and was at the beginning of science fiction. Edgar Allan Poe’s Eureka and the Big Bang | by Paul Halpern | Starts With A Bang! | Medium share.google/wnme0ptUSb7t...

BREAKING: Our crowd count estimate from the No Kings coalition responsible for planning today’s event is 7 MILLION nationwide. 7 MILLION of you gathered across the country to peacefully protest today. 2 million more than the first No Kings action in June.

'The existence and validity of human rights are not written in the stars.. A large part of history is therefore replete with the struggle for those rights.. in which a final victory can never be won. But to tire in that struggle would mean the ruin of society' -Albert Einstein #Einstein #Science

Need a great costume idea this Halloween? Dress up as your favorite Feynman diagram! symmetrymagazine.org/article/octo... #HalloweenScience #happyhalloween2025 #Science #ScienceSky #Physics

Thinking about what to wear for Halloween? Nuclear shell model pioneer Maria Goeppert Mayer, the second woman to receive a Nobel Prize in Physics, shows off her wonderful bat costume (AIP ESVA) #Science #ScienceSky #Physics #Halloween #HappyHalloween

'Einstein's life was rich in genius and irony, passion for the issues of his time, insights into education, the connection between science and politics, and a demonstration that in­dividuals can after all change the world.' -Carl Sagan newrepublic.com/article/1170... #Einstein #Science #physics

Albert Einstein moved to the United States on October 17, 1933. Two weeks later was Halloween. When a group of girl trick-or-treaters knocked on his door that evening, Einstein came to the front porch and played the violin for them: capitalcentury.com/1933.html #HappyHalloween2025 #ScienceSky

SPOOKY QUANTUM PHYSICS! 🎃👻 '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 #Halloween2025

“Writers Who Inspire Me”. Something I recorded when I was a Royal Literary Fund fellow at Brunel University helping students with their writing www.rlf.org.uk/posts/marcus....

When Harlow Shapley received a letter from Hubble containing the evidence that the spiral nebulae were separate "galaxies", he said: “This is the letter that destroyed my universe." Shapley had believed the Universe contained just one "Big Galaxy" - our Milky Way. Now we know there are ~2 trillion!