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.
"Physics theories about the multiverse are stranger than fiction," by Maria Temming
www.sciencenews.org/article/mult...
#Science #Physics #Multiverse #ScienceSky
www.sciencenews.org/article/mult...
#Science #Physics #Multiverse #ScienceSky
Do multiverses exist? Physics says: Maybe.
Cosmology and quantum physics both offer tantalizing possibilities that we inhabit just one reality among many. But testing that idea is challenging.
www.sciencenews.org
January 24, 2026 at 1:15 AM
"Physics theories about the multiverse are stranger than fiction," by Maria Temming
www.sciencenews.org/article/mult...
#Science #Physics #Multiverse #ScienceSky
www.sciencenews.org/article/mult...
#Science #Physics #Multiverse #ScienceSky
'Never rely on an authority in science. Even the greatest genius can be wrong — whether he has one or two Nobel prizes, or none.'
-Erwin Schrödinger
-Erwin Schrödinger
January 23, 2026 at 4:49 PM
'Never rely on an authority in science. Even the greatest genius can be wrong — whether he has one or two Nobel prizes, or none.'
-Erwin Schrödinger
-Erwin Schrödinger
Reposted by Paul Halpern
Nothing can beat learning quantum physics from one of its greatest masters.
The mathematical elegance of Paul Dirac's proofs and explanations truly boggles the mind.
(Image courtesy of Florida State University)
#histSTM #quantum #science #physics #sciencesky
The mathematical elegance of Paul Dirac's proofs and explanations truly boggles the mind.
(Image courtesy of Florida State University)
#histSTM #quantum #science #physics #sciencesky
January 22, 2026 at 1:33 AM
Nothing can beat learning quantum physics from one of its greatest masters.
The mathematical elegance of Paul Dirac's proofs and explanations truly boggles the mind.
(Image courtesy of Florida State University)
#histSTM #quantum #science #physics #sciencesky
The mathematical elegance of Paul Dirac's proofs and explanations truly boggles the mind.
(Image courtesy of Florida State University)
#histSTM #quantum #science #physics #sciencesky
Reposted by Paul Halpern
The Horn Antenna in Holmdel, New Jersey
Using that instrument, Arno Penzias and Robert Wilson accidentally discovered the persistent radio hiss that had a profile consistent with relic radiation from the Big Bang, cooled down over billions of years.
#histSTM
Using that instrument, Arno Penzias and Robert Wilson accidentally discovered the persistent radio hiss that had a profile consistent with relic radiation from the Big Bang, cooled down over billions of years.
#histSTM
December 27, 2025 at 5:14 PM
The Horn Antenna in Holmdel, New Jersey
Using that instrument, Arno Penzias and Robert Wilson accidentally discovered the persistent radio hiss that had a profile consistent with relic radiation from the Big Bang, cooled down over billions of years.
#histSTM
Using that instrument, Arno Penzias and Robert Wilson accidentally discovered the persistent radio hiss that had a profile consistent with relic radiation from the Big Bang, cooled down over billions of years.
#histSTM
Reposted by Paul Halpern
The Pauli Effect:
How Disaster Accompanied a Quantum Physicist Wherever He Went:
medium.com/@phalpern/th...
#Science #ScienceSky #Physics #HistoryOfScience
How Disaster Accompanied a Quantum Physicist Wherever He Went:
medium.com/@phalpern/th...
#Science #ScienceSky #Physics #HistoryOfScience
January 21, 2026 at 12:17 PM
The Pauli Effect:
How Disaster Accompanied a Quantum Physicist Wherever He Went:
medium.com/@phalpern/th...
#Science #ScienceSky #Physics #HistoryOfScience
How Disaster Accompanied a Quantum Physicist Wherever He Went:
medium.com/@phalpern/th...
#Science #ScienceSky #Physics #HistoryOfScience
Reposted by Paul Halpern
One is never too old to master a new creative endeavour.
Wolfgang Amadeus Mozart waited until he was 5 years old until he had the age and experience needed for musical composition.
Wolfgang Amadeus Mozart waited until he was 5 years old until he had the age and experience needed for musical composition.
December 27, 2025 at 5:12 PM
One is never too old to master a new creative endeavour.
Wolfgang Amadeus Mozart waited until he was 5 years old until he had the age and experience needed for musical composition.
Wolfgang Amadeus Mozart waited until he was 5 years old until he had the age and experience needed for musical composition.
Reposted by Paul Halpern
US federal agencies were gutted in 2025, losing ~20% of their staff relative to 2024.
January 22, 2026 at 11:57 AM
US federal agencies were gutted in 2025, losing ~20% of their staff relative to 2024.
Reposted by Paul Halpern
Latest from the Nature Podcast 🔊 The biggest 'Schrödinger's cat' yet — physicists put 7,000 atoms in superposition 🧪
go.nature.com/3LtK7mp
go.nature.com/3LtK7mp
The biggest 'Schrödinger's cat' yet — physicists put 7,000 atoms in superposition
Hear the biggest stories from the world of science | 21 January 2026
go.nature.com
January 22, 2026 at 12:36 PM
Latest from the Nature Podcast 🔊 The biggest 'Schrödinger's cat' yet — physicists put 7,000 atoms in superposition 🧪
go.nature.com/3LtK7mp
go.nature.com/3LtK7mp
Nothing can beat learning quantum physics from one of its greatest masters.
The mathematical elegance of Paul Dirac's proofs and explanations truly boggles the mind.
(Image courtesy of Florida State University)
#histSTM #quantum #science #physics #sciencesky
The mathematical elegance of Paul Dirac's proofs and explanations truly boggles the mind.
(Image courtesy of Florida State University)
#histSTM #quantum #science #physics #sciencesky
January 22, 2026 at 1:33 AM
Nothing can beat learning quantum physics from one of its greatest masters.
The mathematical elegance of Paul Dirac's proofs and explanations truly boggles the mind.
(Image courtesy of Florida State University)
#histSTM #quantum #science #physics #sciencesky
The mathematical elegance of Paul Dirac's proofs and explanations truly boggles the mind.
(Image courtesy of Florida State University)
#histSTM #quantum #science #physics #sciencesky
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
The Pauli Effect:
How Disaster Accompanied a Quantum Physicist Wherever He Went:
medium.com/@phalpern/th...
#Science #ScienceSky #Physics #HistoryOfScience
How Disaster Accompanied a Quantum Physicist Wherever He Went:
medium.com/@phalpern/th...
#Science #ScienceSky #Physics #HistoryOfScience
January 21, 2026 at 12:17 PM
The Pauli Effect:
How Disaster Accompanied a Quantum Physicist Wherever He Went:
medium.com/@phalpern/th...
#Science #ScienceSky #Physics #HistoryOfScience
How Disaster Accompanied a Quantum Physicist Wherever He Went:
medium.com/@phalpern/th...
#Science #ScienceSky #Physics #HistoryOfScience
Reposted by Paul Halpern
'I was delighted too when I heard about the Nobel Prize, thinking as you did that my bongo playing was at last recognised. Imagine my chagrin when I realised that there had been some mistake: they cited marks I made on paper 15 years ago and not one word about percussion technique'
-Richard Feynman
-Richard Feynman
January 19, 2026 at 11:23 PM
'I was delighted too when I heard about the Nobel Prize, thinking as you did that my bongo playing was at last recognised. Imagine my chagrin when I realised that there had been some mistake: they cited marks I made on paper 15 years ago and not one word about percussion technique'
-Richard Feynman
-Richard Feynman
Reposted by Paul Halpern
Laudation for Emmy Noether
The struggles and triumphs of a mathematical genius who helped shape modern physics
www.ilnuovosaggiatore.sif.it/article/430
#Mathematics #Science #ScienceSky #HistoryOfScience
The struggles and triumphs of a mathematical genius who helped shape modern physics
www.ilnuovosaggiatore.sif.it/article/430
#Mathematics #Science #ScienceSky #HistoryOfScience
January 8, 2026 at 6:28 PM
Laudation for Emmy Noether
The struggles and triumphs of a mathematical genius who helped shape modern physics
www.ilnuovosaggiatore.sif.it/article/430
#Mathematics #Science #ScienceSky #HistoryOfScience
The struggles and triumphs of a mathematical genius who helped shape modern physics
www.ilnuovosaggiatore.sif.it/article/430
#Mathematics #Science #ScienceSky #HistoryOfScience
Reposted by Paul Halpern
The US 🇺🇸 and Denmark 🇩🇰 have a lasting friendship, akin to the harmonious relationship between music and science
That friendship should be honored by the US respecting the autonomy of Greenland 🇬🇱, part of the Danish kingdom
Pictured: American musician Louis Armstrong and Danish physicist Niels Bohr
That friendship should be honored by the US respecting the autonomy of Greenland 🇬🇱, part of the Danish kingdom
Pictured: American musician Louis Armstrong and Danish physicist Niels Bohr
January 18, 2026 at 11:19 PM
The US 🇺🇸 and Denmark 🇩🇰 have a lasting friendship, akin to the harmonious relationship between music and science
That friendship should be honored by the US respecting the autonomy of Greenland 🇬🇱, part of the Danish kingdom
Pictured: American musician Louis Armstrong and Danish physicist Niels Bohr
That friendship should be honored by the US respecting the autonomy of Greenland 🇬🇱, part of the Danish kingdom
Pictured: American musician Louis Armstrong and Danish physicist Niels Bohr
'I was delighted too when I heard about the Nobel Prize, thinking as you did that my bongo playing was at last recognised. Imagine my chagrin when I realised that there had been some mistake: they cited marks I made on paper 15 years ago and not one word about percussion technique'
-Richard Feynman
-Richard Feynman
January 19, 2026 at 11:23 PM
'I was delighted too when I heard about the Nobel Prize, thinking as you did that my bongo playing was at last recognised. Imagine my chagrin when I realised that there had been some mistake: they cited marks I made on paper 15 years ago and not one word about percussion technique'
-Richard Feynman
-Richard Feynman
Reposted by Paul Halpern
'As marvelous as the stars is the mind of the person who studies them.'
-Rev. Dr. Martin Luther King, Jr.
#MLKDay2026 #MLKDay
-Rev. Dr. Martin Luther King, Jr.
#MLKDay2026 #MLKDay
January 18, 2026 at 12:38 AM
'As marvelous as the stars is the mind of the person who studies them.'
-Rev. Dr. Martin Luther King, Jr.
#MLKDay2026 #MLKDay
-Rev. Dr. Martin Luther King, Jr.
#MLKDay2026 #MLKDay
The US 🇺🇸 and Denmark 🇩🇰 have a lasting friendship, akin to the harmonious relationship between music and science
That friendship should be honored by the US respecting the autonomy of Greenland 🇬🇱, part of the Danish kingdom
Pictured: American musician Louis Armstrong and Danish physicist Niels Bohr
That friendship should be honored by the US respecting the autonomy of Greenland 🇬🇱, part of the Danish kingdom
Pictured: American musician Louis Armstrong and Danish physicist Niels Bohr
January 18, 2026 at 11:19 PM
The US 🇺🇸 and Denmark 🇩🇰 have a lasting friendship, akin to the harmonious relationship between music and science
That friendship should be honored by the US respecting the autonomy of Greenland 🇬🇱, part of the Danish kingdom
Pictured: American musician Louis Armstrong and Danish physicist Niels Bohr
That friendship should be honored by the US respecting the autonomy of Greenland 🇬🇱, part of the Danish kingdom
Pictured: American musician Louis Armstrong and Danish physicist Niels Bohr
“Call it democracy, or call it democratic socialism, but there must be a better distribution of wealth within this country for all God’s children.”
-Martin Luther King, Jr.
#NoToOligarchy
-Martin Luther King, Jr.
#NoToOligarchy
January 18, 2026 at 11:13 PM
“Call it democracy, or call it democratic socialism, but there must be a better distribution of wealth within this country for all God’s children.”
-Martin Luther King, Jr.
#NoToOligarchy
-Martin Luther King, Jr.
#NoToOligarchy
One of Albert Einstein's best friends in his later years was mathematician Kurt Gödel.
Gödel found a strange solution to Einstein's general theory of relativity that modelled a rotating universe allowing for backward time travel.
Gödel presented the rotating solution to Einstein on his birthday.
Gödel found a strange solution to Einstein's general theory of relativity that modelled a rotating universe allowing for backward time travel.
Gödel presented the rotating solution to Einstein on his birthday.
January 18, 2026 at 5:55 PM
One of Albert Einstein's best friends in his later years was mathematician Kurt Gödel.
Gödel found a strange solution to Einstein's general theory of relativity that modelled a rotating universe allowing for backward time travel.
Gödel presented the rotating solution to Einstein on his birthday.
Gödel found a strange solution to Einstein's general theory of relativity that modelled a rotating universe allowing for backward time travel.
Gödel presented the rotating solution to Einstein on his birthday.
'As marvelous as the stars is the mind of the person who studies them.'
-Rev. Dr. Martin Luther King, Jr.
#MLKDay2026 #MLKDay
-Rev. Dr. Martin Luther King, Jr.
#MLKDay2026 #MLKDay
January 18, 2026 at 12:38 AM
'As marvelous as the stars is the mind of the person who studies them.'
-Rev. Dr. Martin Luther King, Jr.
#MLKDay2026 #MLKDay
-Rev. Dr. Martin Luther King, Jr.
#MLKDay2026 #MLKDay
Reposted by Paul Halpern
Reposted by Paul Halpern
'I think and think for months, for years. Ninety-nine times the conclusion is false. The hundredth time I am right.'
-Albert Einstein,
From 'The Einstein Theory of Living,' New York Times, March 12, 1944: nyti.ms/2BfmRlD
-Albert Einstein,
From 'The Einstein Theory of Living,' New York Times, March 12, 1944: nyti.ms/2BfmRlD
December 27, 2025 at 5:16 PM
'I think and think for months, for years. Ninety-nine times the conclusion is false. The hundredth time I am right.'
-Albert Einstein,
From 'The Einstein Theory of Living,' New York Times, March 12, 1944: nyti.ms/2BfmRlD
-Albert Einstein,
From 'The Einstein Theory of Living,' New York Times, March 12, 1944: nyti.ms/2BfmRlD
Reposted by Paul Halpern
'The origin of all technical achievements is the divine curiosity and the play instinct of the working and thinking researcher, as well as the constructive fantasy of the technical inventor.'
-Albert Einstein
#Einstein #Science #Physics #ScienceSky #AlbertEinstein #Technology
-Albert Einstein
#Einstein #Science #Physics #ScienceSky #AlbertEinstein #Technology
January 6, 2026 at 1:19 AM
'The origin of all technical achievements is the divine curiosity and the play instinct of the working and thinking researcher, as well as the constructive fantasy of the technical inventor.'
-Albert Einstein
#Einstein #Science #Physics #ScienceSky #AlbertEinstein #Technology
-Albert Einstein
#Einstein #Science #Physics #ScienceSky #AlbertEinstein #Technology
Reposted by Paul Halpern
At the 1932 Tournament of Roses New Year's Day Parade in Pasadena, California, Albert Einstein was delighted to congratulate the prize-winning team!
#HappyNewYear #HappyNewYear2026
#HappyNewYear #HappyNewYear2026
January 1, 2026 at 4:07 PM
At the 1932 Tournament of Roses New Year's Day Parade in Pasadena, California, Albert Einstein was delighted to congratulate the prize-winning team!
#HappyNewYear #HappyNewYear2026
#HappyNewYear #HappyNewYear2026
Reposted by Paul Halpern
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 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
November 25, 2025 at 12:38 PM