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Inside almost every atom you are made of, protons sit pressed together at distances where their electric push is the weight of a heavy suitcase. By the law Coulomb measured in 1785, those nuclei should burst apart instantly. They have held for billions of years. So what is holding them?
A slow walk from Coulomb's torsion balance to Rutherford's nucleus, from a count that came out a hundred times too high to a particle found on a Pyrenean mountaintop, and then inside the proton itself.
Get comfortable and let this long look at the smallest truce in nature keep you company tonight. Subscribe to Sundown Science if you enjoy the long way around the universe.
CHAPTERS
0:00 Introduction
1:33 The force that should win
11:40 The crack in Coulomb's law
22:01 A grip that only works up close
32:23 Yukawa's invisible messenger
43:22 The wrong particle and the right one
53:44 The rules of the grip
1:03:56 The neutron tax
1:13:00 Inside the proton
1:23:40 The string that will not break clean
1:34:58 The leak
1:45:56 When the grip fails
1:57:17 Why protons don't fly apart
SOURCES
Hideki Yukawa, Biographical (Nobel Prize 1949) — https://www.nobelprize.org/prizes/phy...
Yukawa, On the Interaction of Elementary Particles I (Osaka archive) — https://www-yukawa.phys.sci.osaka-u.a...
Lattes, Occhialini & Powell, Tracks of Slow Mesons (Nature, 1947) — https://www.nature.com/articles/160453a0
Half a century ago: the discovery of the pion (CERN Courier reprint) — http://fafnir.phyast.pitt.edu/particl...
Meitner & Frisch, Disintegration of Uranium by Neutrons (Nature, 1939) — https://www.nature.com/articles/143239a0
February 11, 1939: Meitner/Frisch paper on nuclear fission (APS News) — https://www.aps.org/publications/apsn...
The Nobel Prize in Physics 2004: asymptotic freedom (press release) — https://www.nobelprize.org/prizes/phy...
Bismuth breaks half-life record for alpha decay (Physics World) — https://physicsworld.com/a/bismuth-br...
Researchers observe two-proton radioactivity (CERN Courier) — https://cerncourier.com/a/researchers...
Proton-Proton Fusion: Powering the Sun (US Department of Energy) — https://www.energy.gov/science/np/art...
—
Disclaimer: All videos are produced for entertainment and education. Factual claims are sourced from peer-reviewed research and official scientific institutions. Where a video explores speculation, fringe theories, or the creator's own analysis, it is clearly labeled as such. Sundown Science is not a news outlet. Watch at your own discretion.
#StrongNuclearForce #QuantumChromodynamics
Hey guys! We’re now live on Spotify🎧
Listen here: https://open.spotify.com/show/5rqQFYd...
Inside almost every atom you are made of, protons sit pressed together at distances where their electric push is the weight of a heavy suitcase. By the law Coulomb measured in 1785, those nuclei should burst apart instantly. They have held for billions of years. So what is holding them?
A slow walk from Coulomb's torsion balance to Rutherford's nucleus, from a count that came out a hundred times too high to a particle found on a Pyrenean mountaintop, and then inside the proton itself.
Get comfortable and let this long look at the smallest truce in nature keep you company tonight. Subscribe to Sundown Science if you enjoy the long way around the universe.
CHAPTERS
0:00 Introduction
1:33 The force that should win
11:40 The crack in Coulomb's law
22:01 A grip that only works up close
32:23 Yukawa's invisible messenger
43:22 The wrong particle and the right one
53:44 The rules of the grip
1:03:56 The neutron tax
1:13:00 Inside the proton
1:23:40 The string that will not break clean
1:34:58 The leak
1:45:56 When the grip fails
1:57:17 Why protons don't fly apart
SOURCES
Hideki Yukawa, Biographical (Nobel Prize 1949) — https://www.nobelprize.org/prizes/phy...
Yukawa, On the Interaction of Elementary Particles I (Osaka archive) — https://www-yukawa.phys.sci.osaka-u.a...
Lattes, Occhialini & Powell, Tracks of Slow Mesons (Nature, 1947) — https://www.nature.com/articles/160453a0
Half a century ago: the discovery of the pion (CERN Courier reprint) — http://fafnir.phyast.pitt.edu/particl...
Meitner & Frisch, Disintegration of Uranium by Neutrons (Nature, 1939) — https://www.nature.com/articles/143239a0
February 11, 1939: Meitner/Frisch paper on nuclear fission (APS News) — https://www.aps.org/publications/apsn...
The Nobel Prize in Physics 2004: asymptotic freedom (press release) — https://www.nobelprize.org/prizes/phy...
Bismuth breaks half-life record for alpha decay (Physics World) — https://physicsworld.com/a/bismuth-br...
Researchers observe two-proton radioactivity (CERN Courier) — https://cerncourier.com/a/researchers...
Proton-Proton Fusion: Powering the Sun (US Department of Energy) — https://www.energy.gov/science/np/art...
—
Disclaimer: All videos are produced for entertainment and education. Factual claims are sourced from peer-reviewed research and official scientific institutions. Where a video explores speculation, fringe theories, or the creator's own analysis, it is clearly labeled as such. Sundown Science is not a news outlet. Watch at your own discretion.
#StrongNuclearForce #QuantumChromodynamics