Paul Halpern
@phalpern.bsky.social
Physicist and Science Writer. Author of nineteen books, including Time Journeys, Cosmic Wormholes, Einstein's Dice, The Quantum Labyrinth, Synchronicity, Flashes of Creation, and The Allure of the Multiverse.
Reposted by Paul Halpern
Albert Einstein at the age of 19, during his university years at the ETH (Swiss Federal Institute of Technology) in Zürich, Switzerland. His thoughts at that time about light's behaviour would later lead him to the special theory of relativity.
(Photo courtesy of @ethlibrary.bsky.social)
#Einstein
(Photo courtesy of @ethlibrary.bsky.social)
#Einstein
February 8, 2026 at 11:40 PM
Albert Einstein at the age of 19, during his university years at the ETH (Swiss Federal Institute of Technology) in Zürich, Switzerland. His thoughts at that time about light's behaviour would later lead him to the special theory of relativity.
(Photo courtesy of @ethlibrary.bsky.social)
#Einstein
(Photo courtesy of @ethlibrary.bsky.social)
#Einstein
Astrophysicist Virginia Trimble, who served as "Miss Twilight Zone" when she was a student, pictured with Twilight Zone creator Rod Serling looking over a script.
From a great article about her in Sky and Telescope:
skyandtelescope.org/astronomy-re...
#Astronomy #Astrophysics #TwilightZone
From a great article about her in Sky and Telescope:
skyandtelescope.org/astronomy-re...
#Astronomy #Astrophysics #TwilightZone
February 14, 2026 at 9:27 PM
Astrophysicist Virginia Trimble, who served as "Miss Twilight Zone" when she was a student, pictured with Twilight Zone creator Rod Serling looking over a script.
From a great article about her in Sky and Telescope:
skyandtelescope.org/astronomy-re...
#Astronomy #Astrophysics #TwilightZone
From a great article about her in Sky and Telescope:
skyandtelescope.org/astronomy-re...
#Astronomy #Astrophysics #TwilightZone
When Jocelyn Bell, who discovered pulsars, did not win the 1974 Nobel Prize for the discovery of pulsars, and the prize went to her research supervisor Antony Hewish, critics dubbed it the 'No-Bell' prize
#Science #Astronomy #Physics
#Science #Astronomy #Physics
February 14, 2026 at 9:25 PM
When Jocelyn Bell, who discovered pulsars, did not win the 1974 Nobel Prize for the discovery of pulsars, and the prize went to her research supervisor Antony Hewish, critics dubbed it the 'No-Bell' prize
#Science #Astronomy #Physics
#Science #Astronomy #Physics
Reposted by Paul Halpern
The Joy of Physics:
Nobel Prize winning quantum physicists Wolfgang Pauli and Niels Bohr play with a Tippe Top: a spinning physics toy that curiously flips over.
#Science #Physics #quantum #ScienceSky
Nobel Prize winning quantum physicists Wolfgang Pauli and Niels Bohr play with a Tippe Top: a spinning physics toy that curiously flips over.
#Science #Physics #quantum #ScienceSky
January 22, 2026 at 1:30 AM
The Joy of Physics:
Nobel Prize winning quantum physicists Wolfgang Pauli and Niels Bohr play with a Tippe Top: a spinning physics toy that curiously flips over.
#Science #Physics #quantum #ScienceSky
Nobel Prize winning quantum physicists Wolfgang Pauli and Niels Bohr play with a Tippe Top: a spinning physics toy that curiously flips over.
#Science #Physics #quantum #ScienceSky
Reposted by Paul Halpern
'A human being is part of the Universe.. limited in time and space.
He experiences himself.. as something separate, a kind of optical delusion of his consciousness.
The striving to free oneself from this delusion is the one issue of true religion'
-Albert Einstein
#Physics #Einstein #Science
He experiences himself.. as something separate, a kind of optical delusion of his consciousness.
The striving to free oneself from this delusion is the one issue of true religion'
-Albert Einstein
#Physics #Einstein #Science
February 2, 2026 at 4:40 PM
Albert Einstein at the age of 19, during his university years at the ETH (Swiss Federal Institute of Technology) in Zürich, Switzerland. His thoughts at that time about light's behaviour would later lead him to the special theory of relativity.
(Photo courtesy of @ethlibrary.bsky.social)
#Einstein
(Photo courtesy of @ethlibrary.bsky.social)
#Einstein
February 8, 2026 at 11:40 PM
Albert Einstein at the age of 19, during his university years at the ETH (Swiss Federal Institute of Technology) in Zürich, Switzerland. His thoughts at that time about light's behaviour would later lead him to the special theory of relativity.
(Photo courtesy of @ethlibrary.bsky.social)
#Einstein
(Photo courtesy of @ethlibrary.bsky.social)
#Einstein
Albert Einstein didn't like telephones. He especially didn't like being bombarded by calls from inquisitive reporters.
Nevertheless, he still had to pay his phone bills.
Here's one of his cheques to New Jersey Bell Telephone to pay the fee for his Princeton landline.
#Einstein #physics #science
Nevertheless, he still had to pay his phone bills.
Here's one of his cheques to New Jersey Bell Telephone to pay the fee for his Princeton landline.
#Einstein #physics #science
February 8, 2026 at 11:35 PM
Danish quantum physicist Niels Bohr visited the Soviet Union in 1932 and met with Russian physiologist Ivan Pavlov.
Upon meeting, perhaps Pavlov asked Bohr, "Does my name ring a bell?"😜
#quantum #science #psychology #ScienceSky #Bohr #Pavlov
Upon meeting, perhaps Pavlov asked Bohr, "Does my name ring a bell?"😜
#quantum #science #psychology #ScienceSky #Bohr #Pavlov
February 8, 2026 at 11:34 PM
Danish quantum physicist Niels Bohr visited the Soviet Union in 1932 and met with Russian physiologist Ivan Pavlov.
Upon meeting, perhaps Pavlov asked Bohr, "Does my name ring a bell?"😜
#quantum #science #psychology #ScienceSky #Bohr #Pavlov
Upon meeting, perhaps Pavlov asked Bohr, "Does my name ring a bell?"😜
#quantum #science #psychology #ScienceSky #Bohr #Pavlov
"Mathematics, rightly viewed, possesses not only truth, but supreme beauty—a beauty cold and austere like that of sculpture."
-Bertrand Russell
#science #mathematics
-Bertrand Russell
#science #mathematics
February 8, 2026 at 11:29 PM
"Mathematics, rightly viewed, possesses not only truth, but supreme beauty—a beauty cold and austere like that of sculpture."
-Bertrand Russell
#science #mathematics
-Bertrand Russell
#science #mathematics
One of the coolest retirement cakes ever made was for American Physical Society officer Alan Chodos.
It reads: "You've officially passed the employment horizon... Welcome to the black hole of retirement!"
But black holes must be escapable; he now has a post-retirement position
#Physics #Science
It reads: "You've officially passed the employment horizon... Welcome to the black hole of retirement!"
But black holes must be escapable; he now has a post-retirement position
#Physics #Science
February 8, 2026 at 11:28 PM
Science historians use many tools to explore the past: university archives, online newspaper searches, oral history records, interviews with scientists, and the Tardis.
Oops, the final item on the list was supposed to be top secret 🤫
Oops, the final item on the list was supposed to be top secret 🤫
February 8, 2026 at 11:26 PM
Science historians use many tools to explore the past: university archives, online newspaper searches, oral history records, interviews with scientists, and the Tardis.
Oops, the final item on the list was supposed to be top secret 🤫
Oops, the final item on the list was supposed to be top secret 🤫
Gravitational physicist Louis Witten was born in April 1921, little more than a year after Einstein became world famous when eclipse expeditions confirmed general relativity.
Now, at the age of almost 105, he remains one of the oldest and most prominent researchers in that field
#Physics
Now, at the age of almost 105, he remains one of the oldest and most prominent researchers in that field
#Physics
February 8, 2026 at 11:25 PM
Gravitational physicist Louis Witten was born in April 1921, little more than a year after Einstein became world famous when eclipse expeditions confirmed general relativity.
Now, at the age of almost 105, he remains one of the oldest and most prominent researchers in that field
#Physics
Now, at the age of almost 105, he remains one of the oldest and most prominent researchers in that field
#Physics
Physicist Richard Tolman consults with Albert Einstein at Caltech.
Tolman introduced the oscillating universe idea (in science) that the cosmos passes through a succession of ever-increasing cycles,
#histSTM #Science #Physics #Einstein #ScienceSky
Tolman introduced the oscillating universe idea (in science) that the cosmos passes through a succession of ever-increasing cycles,
#histSTM #Science #Physics #Einstein #ScienceSky
February 8, 2026 at 11:24 PM
Physicist Richard Tolman consults with Albert Einstein at Caltech.
Tolman introduced the oscillating universe idea (in science) that the cosmos passes through a succession of ever-increasing cycles,
#histSTM #Science #Physics #Einstein #ScienceSky
Tolman introduced the oscillating universe idea (in science) that the cosmos passes through a succession of ever-increasing cycles,
#histSTM #Science #Physics #Einstein #ScienceSky
Reposted by Paul Halpern
Particles in the universe are grouped into two categories, based on their statistical properties.
Force carriers are named after the scientist on the left.
The building blocks of matter are named after the one on the right.
Pictured: Satyendra Nath Bose and Enrico Fermi
#Science #Physics
Force carriers are named after the scientist on the left.
The building blocks of matter are named after the one on the right.
Pictured: Satyendra Nath Bose and Enrico Fermi
#Science #Physics
February 5, 2026 at 3:20 AM
Reposted by Paul Halpern
'Science makes people reach selflessly for truth and objectivity; it teaches people to accept reality, with wonder and admiration, not to mention the deep awe and joy that the natural order of things brings to the true scientist.'
-Lise Meitner, Austrian nuclear scientist
#Physics #Science
-Lise Meitner, Austrian nuclear scientist
#Physics #Science
February 2, 2026 at 4:39 PM
Reposted by Paul Halpern
'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 #ScienceSky #Physics #JohnWheeler #quantum #historyofscience #historyofphysics
As our island of knowledge grows, so does the shore of our ignorance.'
-John Archibald Wheeler
#Science #ScienceSky #Physics #JohnWheeler #quantum #historyofscience #historyofphysics
February 2, 2026 at 4:38 PM
'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 #ScienceSky #Physics #JohnWheeler #quantum #historyofscience #historyofphysics
As our island of knowledge grows, so does the shore of our ignorance.'
-John Archibald Wheeler
#Science #ScienceSky #Physics #JohnWheeler #quantum #historyofscience #historyofphysics
Particles in the universe are grouped into two categories, based on their statistical properties.
Force carriers are named after the scientist on the left.
The building blocks of matter are named after the one on the right.
Pictured: Satyendra Nath Bose and Enrico Fermi
#Science #Physics
Force carriers are named after the scientist on the left.
The building blocks of matter are named after the one on the right.
Pictured: Satyendra Nath Bose and Enrico Fermi
#Science #Physics
February 5, 2026 at 3:20 AM
'A human being is part of the Universe.. limited in time and space.
He experiences himself.. as something separate, a kind of optical delusion of his consciousness.
The striving to free oneself from this delusion is the one issue of true religion'
-Albert Einstein
#Physics #Einstein #Science
He experiences himself.. as something separate, a kind of optical delusion of his consciousness.
The striving to free oneself from this delusion is the one issue of true religion'
-Albert Einstein
#Physics #Einstein #Science
February 2, 2026 at 4:40 PM
'Science makes people reach selflessly for truth and objectivity; it teaches people to accept reality, with wonder and admiration, not to mention the deep awe and joy that the natural order of things brings to the true scientist.'
-Lise Meitner, Austrian nuclear scientist
#Physics #Science
-Lise Meitner, Austrian nuclear scientist
#Physics #Science
February 2, 2026 at 4:39 PM
'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 #ScienceSky #Physics #JohnWheeler #quantum #historyofscience #historyofphysics
As our island of knowledge grows, so does the shore of our ignorance.'
-John Archibald Wheeler
#Science #ScienceSky #Physics #JohnWheeler #quantum #historyofscience #historyofphysics
February 2, 2026 at 4:38 PM
'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 #ScienceSky #Physics #JohnWheeler #quantum #historyofscience #historyofphysics
As our island of knowledge grows, so does the shore of our ignorance.'
-John Archibald Wheeler
#Science #ScienceSky #Physics #JohnWheeler #quantum #historyofscience #historyofphysics
'My pacifism is an instinctive feeling, a feeling that possesses me because the murder of men is disgusting. My attitude is not derived from any intellectual theory but is based on my deepest antipathy to every kind of cruelty and hatred'
-Albert Einstein
-Albert Einstein
January 31, 2026 at 12:05 AM
'My pacifism is an instinctive feeling, a feeling that possesses me because the murder of men is disgusting. My attitude is not derived from any intellectual theory but is based on my deepest antipathy to every kind of cruelty and hatred'
-Albert Einstein
-Albert Einstein
Reposted by Paul Halpern
Rare color photo of Albert Einstein, taken on the porch of his house in Princeton, February 1954.
Courtesy of Einstein Archives.
#Science #Einstein #Physics #ScienceSky #AlbertEinstein
Courtesy of Einstein Archives.
#Science #Einstein #Physics #ScienceSky #AlbertEinstein
January 27, 2026 at 12:40 PM
Rare color photo of Albert Einstein, taken on the porch of his house in Princeton, February 1954.
Courtesy of Einstein Archives.
#Science #Einstein #Physics #ScienceSky #AlbertEinstein
Courtesy of Einstein Archives.
#Science #Einstein #Physics #ScienceSky #AlbertEinstein
Reposted by Paul Halpern
'It is in .. times of evil that men recognize their helplessness and their profound dependence..
In the Bhagavad-Gita it says, "Man is a creature whose substance is faith. What his faith is, he is.."
For this reason it is possible to maintain the hope.'
-J Robert Oppenheimer
(Roosevelt Memorial)
In the Bhagavad-Gita it says, "Man is a creature whose substance is faith. What his faith is, he is.."
For this reason it is possible to maintain the hope.'
-J Robert Oppenheimer
(Roosevelt Memorial)
January 27, 2026 at 12:33 PM
'It is in .. times of evil that men recognize their helplessness and their profound dependence..
In the Bhagavad-Gita it says, "Man is a creature whose substance is faith. What his faith is, he is.."
For this reason it is possible to maintain the hope.'
-J Robert Oppenheimer
(Roosevelt Memorial)
In the Bhagavad-Gita it says, "Man is a creature whose substance is faith. What his faith is, he is.."
For this reason it is possible to maintain the hope.'
-J Robert Oppenheimer
(Roosevelt Memorial)
Reposted by Paul Halpern
Beatles and the Butterfly Effect
A little-noticed feature of Paul McCartney's 2018 video 'Who Cares?' is that his character is called 'Dr. Lorenz,' after meteorologist Edward Lorenz, the founder of chaos theory, and refers to chaotic order from disorder:
youtu.be/7WOb6ePqjIE
#Beatles #McCartney
A little-noticed feature of Paul McCartney's 2018 video 'Who Cares?' is that his character is called 'Dr. Lorenz,' after meteorologist Edward Lorenz, the founder of chaos theory, and refers to chaotic order from disorder:
youtu.be/7WOb6ePqjIE
#Beatles #McCartney
January 27, 2026 at 12:30 PM
Beatles and the Butterfly Effect
A little-noticed feature of Paul McCartney's 2018 video 'Who Cares?' is that his character is called 'Dr. Lorenz,' after meteorologist Edward Lorenz, the founder of chaos theory, and refers to chaotic order from disorder:
youtu.be/7WOb6ePqjIE
#Beatles #McCartney
A little-noticed feature of Paul McCartney's 2018 video 'Who Cares?' is that his character is called 'Dr. Lorenz,' after meteorologist Edward Lorenz, the founder of chaos theory, and refers to chaotic order from disorder:
youtu.be/7WOb6ePqjIE
#Beatles #McCartney
Reposted by Paul Halpern
Albert Einstein and psychologist Sigmund Freud greatly admired each other.
Here is a portrait of Einstein, painted by Ferdinand Schmutzer, that was part of Freud's personal collection.
It is now housed in the Freud Museum, Vienna.
#histSTM #Science #Physics #Freud #Einstein
Here is a portrait of Einstein, painted by Ferdinand Schmutzer, that was part of Freud's personal collection.
It is now housed in the Freud Museum, Vienna.
#histSTM #Science #Physics #Freud #Einstein
January 27, 2026 at 12:26 PM