Paul Halpern(@phalpern) 's Twitter Profile Photo

While travelling across the USA on a Greyhound bus, Freeman Dyson thought of a way of unifying quantum electrodynamics.

He brilliantly showed how the theories of Tomonaga, Schwinger, and Feynman were consistent with each other:

journals.aps.org/pr/abstract/10…

While travelling across the USA on a Greyhound bus, Freeman Dyson thought of a way of unifying quantum electrodynamics.  

He brilliantly showed how the theories of Tomonaga, Schwinger, and Feynman were consistent with each other:  

journals.aps.org/pr/abstract/10…

  #histSTM
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Paul Halpern(@phalpern) 's Twitter Profile Photo

Albert Einstein, relaxing on a Belgian beach with his 'calculator,'* Austrian mathematician Walther Mayer, 1933.

*In those days, humans adept at calculations, who worked for professors to help them complete their projects, were known as computers or calculators.

Albert Einstein, relaxing on a Belgian beach with his 'calculator,'* Austrian mathematician Walther Mayer, 1933.

*In those days, humans adept at calculations, who worked for professors to help them complete their projects, were known as computers or calculators. 

#histSTM
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Alexandre Klein(@kleinalexandre) 's Twitter Profile Photo

(Journée d'étude) Émotions, climat et environnement. Perspectives historiques (18e-21e siècles) histoiresante.blogspot.com/2024/05/emotio…

(Journée d'étude) Émotions, climat et environnement.  Perspectives historiques (18e-21e siècles) histoiresante.blogspot.com/2024/05/emotio… #histSTM
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Paul Halpern(@phalpern) 's Twitter Profile Photo

Brilliant scientist Marie Skłodowska-Curie, who received Nobel Prizes in both Physics and Chemistry, works in her laboratory at the Radium Institute in Paris, 1921 (Getty Images):

gettyimages.com/detail/video/p…

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Paul Halpern(@phalpern) 's Twitter Profile Photo

Marie Skłodowska-Curie and Irène Joliot-Curie in 1925: an extraordinary mother-daughter team of scientists.

Marie received two Nobel Prizes: Physics in 1903 and Chemistry in 1911; Irène received a Nobel in Chemistry in 1935.

Marie Skłodowska-Curie and Irène Joliot-Curie in 1925:  an extraordinary mother-daughter team of scientists.  

Marie received two Nobel Prizes:  Physics in 1903 and Chemistry in 1911;  Irène received a Nobel in Chemistry in 1935.  

#histSTM #WomenInSTEM
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Paul Halpern(@phalpern) 's Twitter Profile Photo

At the house in Zürich, Switzerland where Albert Einstein resided during his student days (1896-1900) he is remembered not just as a great physicist, but also as a friend of peace.

At the house in Zürich, Switzerland where Albert Einstein resided during his student days (1896-1900) he is remembered not just as a great physicist, but also as a friend of peace. 

#histSTM
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Paul Halpern(@phalpern) 's Twitter Profile Photo

In true quantum fashion, physicist Paul Dirac has two markers commemorating his death, one an honorary marker (inscribed with his famous equation) in Westminster Abbey, the other the actual gravestone in Roselawn Cemetery, Tallahassee, Florida

In true quantum fashion, physicist Paul Dirac has two markers commemorating his death, one an honorary marker (inscribed with his famous equation) in Westminster Abbey, the other the actual gravestone in Roselawn Cemetery, Tallahassee, Florida  

#histSTM
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Paul Halpern(@phalpern) 's Twitter Profile Photo

Richard Feynman's letter to the editor of the New York Times about 56 years ago on November 5, 1967 recognized Murray Gell-Mann as the sole proposer of the quark model.

Richard Feynman's letter to the editor of the New York Times about 56 years ago on November 5, 1967 recognized Murray Gell-Mann as the sole proposer of the quark model.  

#histSTM
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Paul Halpern(@phalpern) 's Twitter Profile Photo

The geometry textbook from which Albert Einstein learned the Pythagorean theorem as a child.

In an autobiographical essay he wrote in his later years, he called it a 'wonder.'



📷

The geometry textbook from which Albert Einstein learned the Pythagorean theorem as a child.

In an autobiographical essay he wrote in his later years, he called it a 'wonder.'

#Einstein #histSTM

📷
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Paul Halpern(@phalpern) 's Twitter Profile Photo

Four Catholic clerics who helped shape the history of science:

Gregor Mendel (genetics)
Giuseppe Mercalli (volcanology and seismology)
Georges Lemaître (cosmology)
Stanley Jaki (history and philosophy of science)

aleteia.org/2018/05/25/the…

Four Catholic clerics who helped shape the history of science:  

Gregor Mendel (genetics)
Giuseppe Mercalli (volcanology and seismology)
Georges Lemaître (cosmology)
Stanley Jaki (history and philosophy of science)

aleteia.org/2018/05/25/the…

#histSTM
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Paul Halpern(@phalpern) 's Twitter Profile Photo

Almost 105 years ago, the recorded bending of starlight by the Sun during a solar eclipse helped propel Albert Einstein into international renown.

His fame continued to skyrocket for the rest of his life:

physicstoday.scitation.org/doi/10.1063/PT…

Almost 105 years ago, the recorded bending of starlight by the Sun during a solar eclipse helped propel Albert Einstein into international renown.  

His fame continued to skyrocket for the rest of his life: 

physicstoday.scitation.org/doi/10.1063/PT…  

#histSTM
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Paul Halpern(@phalpern) 's Twitter Profile Photo

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.

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
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Paul Halpern(@phalpern) 's Twitter Profile Photo

'You believe in the God who plays dice, and I in complete law and order in a world which objectively exists...'

-Albert Einstein
(letter to quantum physicist Max Born, 1944)

'You believe in the God who plays dice, and I in complete law and order in a world which objectively exists...'        

 -Albert Einstein  
(letter to quantum physicist Max Born, 1944)       

#histSTM
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Paul Halpern(@phalpern) 's Twitter Profile Photo

More than three centuries before Galileo, brilliant 13th century Persian Muslim scholar Nasir al-Din al-Tusi was the first known thinker to suggest that the Milky Way is composed of numerous stars, each contributing light to its hazy profile.

More than three centuries before Galileo, brilliant 13th century Persian Muslim scholar Nasir al-Din al-Tusi was the first known thinker to suggest that the Milky Way is composed of numerous stars, each contributing light to its hazy profile.  

#histSTM
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Paul Halpern(@phalpern) 's Twitter Profile Photo

Two physicists from vastly different backgrounds and parts of the world--Ernest Rutherford of rural Brightwater, New Zealand and Niels Bohr of urban Copenhagen, Denmark--changed our concept of the atom.

Two physicists from vastly different backgrounds and parts of the world--Ernest Rutherford of rural Brightwater, New Zealand and Niels Bohr of urban Copenhagen, Denmark--changed our concept of the atom.

#histSTM
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Paul Halpern(@phalpern) 's Twitter Profile Photo

Four generations of the family of accomplished American theoretical physicist John Archibald Wheeler, honored by US President Lyndon Johnson at the White House in 1968.

Four generations of the family of accomplished American theoretical physicist John Archibald Wheeler, honored by US President Lyndon Johnson at the White House in 1968.

#histSTM
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Paul Halpern(@phalpern) 's Twitter Profile Photo

Does quantum physics ring a bell? ⚛️🔔🐶

Danish physicist Niels Bohr chats with Russian physiologist Ivan Pavlov, each a Nobel laureate

Does quantum physics ring a bell?    ⚛️🔔🐶

Danish physicist Niels Bohr chats with Russian physiologist Ivan Pavlov, each a Nobel laureate   

 #histSTM
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Paul Halpern(@phalpern) 's Twitter Profile Photo

'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

'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 #Einstein
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Paul Halpern(@phalpern) 's Twitter Profile Photo

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.

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
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