Lautaro Vergara-Cofré
@vergaralautaro.bsky.social
Chilean physicist.
Posting mainly about history of physics.
Too many interesting things to learn, too few time.
Born at 316.91 ppm
Posting mainly about history of physics.
Too many interesting things to learn, too few time.
Born at 316.91 ppm
though his identity is largely unknown.
Shifting from academia, Rodrigues followed his family into finance but soon became a devoted disciple and financial supporter of the charismatic utopian socialist Claude-Henri de Saint-Simon. Following Saint-Simon's death, Rodrigues
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Shifting from academia, Rodrigues followed his family into finance but soon became a devoted disciple and financial supporter of the charismatic utopian socialist Claude-Henri de Saint-Simon. Following Saint-Simon's death, Rodrigues
4/
October 6, 2025 at 5:34 PM
though his identity is largely unknown.
Shifting from academia, Rodrigues followed his family into finance but soon became a devoted disciple and financial supporter of the charismatic utopian socialist Claude-Henri de Saint-Simon. Following Saint-Simon's death, Rodrigues
4/
Shifting from academia, Rodrigues followed his family into finance but soon became a devoted disciple and financial supporter of the charismatic utopian socialist Claude-Henri de Saint-Simon. Following Saint-Simon's death, Rodrigues
4/
QUOTE OF THE DAY
August 31, 2025 at 6:40 PM
QUOTE OF THE DAY
QUOTE OF THE DAY
August 22, 2025 at 3:55 PM
QUOTE OF THE DAY
QUOTE OF THE DAY
August 20, 2025 at 5:16 PM
QUOTE OF THE DAY
QUOTE OF THE DAY
August 18, 2025 at 1:28 PM
QUOTE OF THE DAY
QUOTE OF THE DAY
August 17, 2025 at 10:15 PM
QUOTE OF THE DAY
QUOTE OF THE DAY
July 6, 2025 at 8:17 PM
QUOTE OF THE DAY
QUOTE OF THE DAY
July 5, 2025 at 1:53 AM
QUOTE OF THE DAY
QUOTE OF THE DAY
June 14, 2025 at 3:17 PM
QUOTE OF THE DAY
The end of this story was that Igor Dzyaloshinskii finally did solid state theory...
However, ...
--end
However, ...
--end
June 13, 2025 at 2:58 PM
The end of this story was that Igor Dzyaloshinskii finally did solid state theory...
However, ...
--end
However, ...
--end
QUOTE OF THE DAY
May 20, 2025 at 7:35 PM
QUOTE OF THE DAY
QUOTE OF THE DAY
May 18, 2025 at 8:21 PM
QUOTE OF THE DAY
HISTORY OF PHYSICS
In early 1951, Edward Teller and Stanislaw Ulam developed the Teller-Ulam configuration, a design for a practical hydrogen bomb. This design utilized radiation from a fission primary to compress and ignite a thermonuclear secondary.
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(Source: Wikimedia)
In early 1951, Edward Teller and Stanislaw Ulam developed the Teller-Ulam configuration, a design for a practical hydrogen bomb. This design utilized radiation from a fission primary to compress and ignite a thermonuclear secondary.
1/
(Source: Wikimedia)
May 12, 2025 at 7:11 PM
HISTORY OF PHYSICS
In early 1951, Edward Teller and Stanislaw Ulam developed the Teller-Ulam configuration, a design for a practical hydrogen bomb. This design utilized radiation from a fission primary to compress and ignite a thermonuclear secondary.
1/
(Source: Wikimedia)
In early 1951, Edward Teller and Stanislaw Ulam developed the Teller-Ulam configuration, a design for a practical hydrogen bomb. This design utilized radiation from a fission primary to compress and ignite a thermonuclear secondary.
1/
(Source: Wikimedia)
This is a sea lion.
It lived its whole life in the Patagonian sea.
But once, he thought why not to know other places?
And it has been found walking around 50 km from the coast, in Torres del Paine, Chile.
It lived its whole life in the Patagonian sea.
But once, he thought why not to know other places?
And it has been found walking around 50 km from the coast, in Torres del Paine, Chile.
May 10, 2025 at 2:58 PM
This is a sea lion.
It lived its whole life in the Patagonian sea.
But once, he thought why not to know other places?
And it has been found walking around 50 km from the coast, in Torres del Paine, Chile.
It lived its whole life in the Patagonian sea.
But once, he thought why not to know other places?
And it has been found walking around 50 km from the coast, in Torres del Paine, Chile.
but also a second image that would not exist without the lens. Moreover, if the directions to the source and the lens align perfectly, the two images merge, and the observer sees a luminous ring around the lens
In 1936, Albert Einstein calculated the radius of such a ring, the "Einstein Ring"
-end
In 1936, Albert Einstein calculated the radius of such a ring, the "Einstein Ring"
-end
April 28, 2025 at 4:15 PM
but also a second image that would not exist without the lens. Moreover, if the directions to the source and the lens align perfectly, the two images merge, and the observer sees a luminous ring around the lens
In 1936, Albert Einstein calculated the radius of such a ring, the "Einstein Ring"
-end
In 1936, Albert Einstein calculated the radius of such a ring, the "Einstein Ring"
-end
In 1924, Orest Khvolson published a note titled "On a False Double Star," in which he showed that if the distance between the light source, the lensing object, and the observer on Earth is sufficiently large, the observer can see not only a displacement of the distant source's image,
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April 28, 2025 at 4:13 PM
In 1924, Orest Khvolson published a note titled "On a False Double Star," in which he showed that if the distance between the light source, the lensing object, and the observer on Earth is sufficiently large, the observer can see not only a displacement of the distant source's image,
3/
3/
HISTORY OF PHYSICS
Einstein Ring.
Orest Khvolson was a Russian/Soviet physicist who wrote a “Course of Physics”, translated into German, French and Spanish.
Writing a six-volume course of physics (1st edition, 1895), was the main work of his life.
1/
Einstein Ring.
Orest Khvolson was a Russian/Soviet physicist who wrote a “Course of Physics”, translated into German, French and Spanish.
Writing a six-volume course of physics (1st edition, 1895), was the main work of his life.
1/
April 28, 2025 at 4:11 PM
HISTORY OF PHYSICS
Einstein Ring.
Orest Khvolson was a Russian/Soviet physicist who wrote a “Course of Physics”, translated into German, French and Spanish.
Writing a six-volume course of physics (1st edition, 1895), was the main work of his life.
1/
Einstein Ring.
Orest Khvolson was a Russian/Soviet physicist who wrote a “Course of Physics”, translated into German, French and Spanish.
Writing a six-volume course of physics (1st edition, 1895), was the main work of his life.
1/
I would vote for Juan Maldacena as new Pope.
And you?
And you?
April 24, 2025 at 3:50 PM
I would vote for Juan Maldacena as new Pope.
And you?
And you?
Hans Bethe at the Nobel ceremony, Dec. 10th 1967.
AI "enhanced." Colorized.
AI "enhanced." Colorized.
April 20, 2025 at 12:04 AM
Hans Bethe at the Nobel ceremony, Dec. 10th 1967.
AI "enhanced." Colorized.
AI "enhanced." Colorized.
HISTORY OF PHYSICS
Lev Landau and Boris N. Yeselson, probably during a pause at the 1st All-Union Conference on Low Temperature Physics held in 1954, in Kharkov.
I don't like pictures taken when one is eating.😂
Source: Lev Pitaevskii, 2010.
Lev Landau and Boris N. Yeselson, probably during a pause at the 1st All-Union Conference on Low Temperature Physics held in 1954, in Kharkov.
I don't like pictures taken when one is eating.😂
Source: Lev Pitaevskii, 2010.
April 13, 2025 at 7:20 PM
HISTORY OF PHYSICS
Lev Landau and Boris N. Yeselson, probably during a pause at the 1st All-Union Conference on Low Temperature Physics held in 1954, in Kharkov.
I don't like pictures taken when one is eating.😂
Source: Lev Pitaevskii, 2010.
Lev Landau and Boris N. Yeselson, probably during a pause at the 1st All-Union Conference on Low Temperature Physics held in 1954, in Kharkov.
I don't like pictures taken when one is eating.😂
Source: Lev Pitaevskii, 2010.
Einstein’s theory in which he considers the energy conservation law found in Einstein’s 1916 paper “Die Grundlagen der allgemeinen Relativitätstheorie,” consisting of the vanishing of the divergence of two terms:
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April 12, 2025 at 8:05 PM
Einstein’s theory in which he considers the energy conservation law found in Einstein’s 1916 paper “Die Grundlagen der allgemeinen Relativitätstheorie,” consisting of the vanishing of the divergence of two terms:
3/
3/
HISTORY OF PHYSICS
On fairplay and chivalry.
As told by Viki Weisskopf.
On fairplay and chivalry.
As told by Viki Weisskopf.
April 11, 2025 at 9:05 PM
HISTORY OF PHYSICS
On fairplay and chivalry.
As told by Viki Weisskopf.
On fairplay and chivalry.
As told by Viki Weisskopf.
Pavel Cherenkov with his hair style at an angle given by
cos(θ)=1/(n β)
cos(θ)=1/(n β)
April 7, 2025 at 4:03 PM
Pavel Cherenkov with his hair style at an angle given by
cos(θ)=1/(n β)
cos(θ)=1/(n β)