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Reposted by Paul Halpern

MoveOn @moveon.org · 9h

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.

Randi Weingarten 🖇️📚✊🇺🇸 @rweingarten.bsky.social · 9h

It's official. Nearly 7 million people. Today is the single largest day of protest in American history. Americans from all corners of the country are standing up and saying #NoKings. This is what peaceful, patriotic protest looks like.

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Paul Halpern @phalpern.bsky.social · Nov 12

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...

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Paul Halpern @phalpern.bsky.social · 12d

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

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Paul Halpern @phalpern.bsky.social · Jun 5

'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

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Paul Halpern @phalpern.bsky.social · 5d

'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

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Paul Halpern @phalpern.bsky.social · 5d

Need a great costume idea this Halloween? Dress up as your favorite Feynman diagram!

symmetrymagazine.org/article/octo...

#HalloweenScience #happyhalloween2025 #Science #ScienceSky #Physics

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Paul Halpern @phalpern.bsky.social · 5d

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

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Paul Halpern @phalpern.bsky.social · 20d

'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

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Paul Halpern @phalpern.bsky.social · 12d

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

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Paul Halpern @phalpern.bsky.social · 6d

Many congratulations Marcus! And on a different note, thanks for your ongoing advocacy for democracy, access to health care for all, and human rights in general.

Paul Halpern @phalpern.bsky.social · 12d

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

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Paul Halpern @phalpern.bsky.social · 12d

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

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Reposted by Paul Halpern

Catlin Lee @catlinyy.bsky.social · Jun 5

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 Halpern

The Allure of the Multiverse: Extra Dimensions, Other Worlds, and Parallel Universes by Paul Halpern

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Marcus Chown @marcuschown.bsky.social · 13d

“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....

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Reposted by Paul Halpern

Marcus Chown @marcuschown.bsky.social · 12d

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!

Robert “The Bobby Yaga” McNees @mcnees.bsky.social · 12d

VAR!

In the early morning hours #OTD in 1923, Edwin Hubble took a photo plate of M31 that showed a Cepheid variable star.

Using Henrietta Swan Leavitt’s distance-luminosity relationship, Hubble concluded that M31 is another galaxy outside the Milky Way. 🧪 🔭 ⚛️

Image: Carnegie Observatories

Photo plate of Hubble's famous "VAR!" discovery. This is a photonegative plate of an image of the Andromeda Galaxy, with several small annotations made in grease pencil. One of them was previously marked "N" for "nova," but the N has been crossed out and replaced with an excited "VAR!" to indicate a Cepheid Variable.

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Paul Halpern @phalpern.bsky.social · Sep 1

'I am happy because I want nothing from anyone. I do not care for money. Titles or distinctions mean nothing. I do not crave praise. The only thing that gives me pleasure, apart from my work, my violin and my sailboat, is the appreciation of my fellow worker'

-Albert Einstein

#Science #Einstein

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Muy Interesante @muyinteresante.com · Sep 12

En su nuevo libro, Paul Halpern narra la historia de cómo Einstein y Schrödinger, dos de los grandes genios del siglo XX, se unieron primero como aliados y luego como rivales en su intento de desafiar la idea de que el universo está gobernado por el azar.

Einstein, Schrödinger y el libro que te hará entender el debate más profundo de la física cuántica

www.muyinteresante.com

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Math! Science! History! Podcast @mathsciencehistory.bsky.social · 12d

Tomorrow on Math! Science! History! >>> Before America was a country, Abigail Adams faced a different war: smallpox. In 1776, she gathered her children, entered quarantine, and chose science over fear. Tomorrow, hear her story and the letters that changed history.
Www.MathScienceHistory.com

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Mike Christie @mikecwriter.bsky.social · Mar 5

In "The Allure of the Multiverse" science writer Paul Halpern takes on the idea that there may be universes other than the one that we know. He discusses both quantum mechanics and cosmology.

#books #BookReview #science #physics #QuantumMechanics #cosmology

mypointbeing.com/2024/03/05/t...

cover of the book "The Allure of the Multiverse"

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Lee Keyes @leekeyes.bsky.social · Aug 2

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...

Edgar Allan Poe’s Eureka and the Big Bang

Did the 19th century master of the macabre predict our cosmic history?

share.google

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Alan Boyle @b0yle.bsky.social · Jan 15

"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...

Why scientists are mesmerized by the multiverse

The multiverse may be a cool (and convenient) concept for comic books and superhero movies, but why do scientists take it seriously? In a new book titled “The Allure of the Multiverse,”…

cosmiclog.com

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Paul Halpern @phalpern.bsky.social · 20d

'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

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Paul Halpern @phalpern.bsky.social · 23d

RELATIVITY

There was a young lady named Bright
Whose speed was far faster than light;
She set out one day
In a relative way
And returned on the previous night.

-A. H. Reginald Buller (1923)

#ScienceSky #Science #Physics #Einstein

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Marcus Chown @marcuschown.bsky.social · 21d

Feynman was charismatic and approachable. I asked him to write to my mum in the hope he could get her interested in science. The gist of his letter was “Dear Mrs Chown, Ignore your son’s attempt to teach you physics. Physics is not the the most important thing. Love is. Richard Feynman.”

MandyB @mandy1b.bsky.social · 22d

Oh wow, you had Feynman as a lecturer! From the T.V./ and video I've seen of him, he seems charismatic and inspiring. I wonder if that was true in real life or if it was a case of 'never meet your idols'. I hope it was the former.

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Paul Halpern @phalpern.bsky.social · 21d

'No one can work hard on a serious intellectual problem for more than four hours a day.'

-Nobel Laureate physicist Paul Dirac

Dirac had many hobbies including gardening, hiking, and reading.

(Quote and photo, courtesy of Monica Dirac)

#Science #quantum #ScienceSky

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