Atomic Physics

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  • Опубліковано 16 січ 2025

КОМЕНТАРІ • 61

  • @kyleb3754
    @kyleb3754 2 роки тому +7

    Fantastic film! Thanks for sharing it. 👍👍👍👍👍

  • @donbrown5414
    @donbrown5414 3 роки тому +11

    Great video wish I had seen this in high school back in the 70"s

    • @whirledpeas3477
      @whirledpeas3477 2 роки тому +1

      Why?

    • @donbrown5414
      @donbrown5414 2 роки тому +1

      @@whirledpeas3477 LOL, good point! Not sure exactly where I was going with that. It seemed like a very clear presentation of a complex subject.

    • @whirledpeas3477
      @whirledpeas3477 2 роки тому +1

      @@donbrown5414 ✌

    • @randomtux1234
      @randomtux1234 Рік тому +2

      me 2, i might have become a nuclear physicist, had they explained it like this back then, instead of thrashing us to pieces with the slipper

  • @randomtux1234
    @randomtux1234 Рік тому +20

    if only they'd teach it at school like this, we wouldnt be looking for this 30 years later

    • @TomKappeln
      @TomKappeln Рік тому

      Because the new agenda is holding people dumb.
      Consume and obey !

    • @dutchess406
      @dutchess406 7 місяців тому

      ​@aabbcc5154 you're a Dbag

    • @CiroSantilli
      @CiroSantilli 4 місяці тому +2

      School should be an optional selection of amazing videos and texts with teachers only to select and answer questions.

    • @KC-nd7nt
      @KC-nd7nt 4 місяці тому +2

      Students that worked hard were exposed to this knowledge, hence the video .
      We just didn't want you there

    • @Lesterthenightfly01
      @Lesterthenightfly01 Місяць тому

      @@KC-nd7ntspoken Like a legendary virgin

  • @kn9ioutom
    @kn9ioutom 16 днів тому +2

    AWESOME SCIENCE !!!

  • @htwt
    @htwt 2 роки тому +1

    Wow! Incredibly great film!

  • @djannias
    @djannias 4 дні тому

    🎯 Key points for quick navigation:
    01:32 *📜 The Revival of Atomic Theory*
    - John Dalton's atomic theory formalized the idea of matter being composed of indivisible particles.
    - Dalton introduced combining weights and atomic symbols to represent chemical compounds.
    - His work laid the foundation for 19th-century chemistry, despite some inaccuracies.
    04:44 *🔬 Development of the Periodic Table*
    - Mendeleev organized elements by atomic weight and chemical properties into the periodic table.
    - The table allowed predictions of unknown elements based on patterns.
    - Chemical analysis advanced with Dalton's and Avogadro's theories.
    05:50 *⚡ Discovery of Ions and Electrolysis*
    - Michael Faraday's experiments linked electricity with chemical reactions.
    - Positive and negative ions move towards respective electrodes during electrolysis.
    - The concept of atomic electricity began to form.
    07:12 *🌊 Molecular Motion and Brownian Motion*
    - Robert Brown observed random motion of particles, later explained as molecular collisions.
    - The scale of atoms and molecules was highlighted through their immense quantity in small volumes.
    - Matter was confirmed to consist of perpetually moving molecules.
    08:54 *💡 Cathode Rays and the Electron*
    - J.J. Thomson discovered the electron through cathode ray experiments.
    - Electrons were found to be negatively charged and much smaller than hydrogen atoms.
    - These findings introduced the concept of subatomic particles.
    13:39 *☁️ Visualization of Atomic Particles*
    - Wilson’s cloud chamber made particle trails visible, confirming atomic behavior.
    - Charged particles ionize gas, forming visible trails of condensation.
    - This technique became crucial in atomic research.
    16:50 *➕ Discovery of Positive Ions and Canal Rays*
    - Goldstein discovered canal rays, proving positive particles existed.
    - J.J. Thomson measured the mass-to-charge ratio of these ions.
    - This confirmed atoms contain both positive and negative charges.
    19:37 *❌ Discovery of X-rays and Radioactivity*
    - Röntgen discovered X-rays, which led to medical and industrial imaging.
    - Becquerel found uranium emitted radiation, revealing radioactivity.
    - Marie and Pierre Curie isolated radium, intensifying the study of radioactive elements.
    24:07 *☢️ Alpha Particles and Atomic Transformation*
    - Rutherford’s experiments proved alpha particles are helium atoms.
    - Radioactivity revealed that atoms could spontaneously transform into other elements.
    - The instability of atoms was linked to radioactive decay processes.
    26:48 *🏛️ Rutherford’s Nuclear Atom Model*
    - Rutherford proposed the nuclear atom with a dense, positively charged nucleus.
    - Geiger and Marsden’s gold foil experiment confirmed this structure.
    - Niels Bohr expanded the model using quantum theory for electron orbits.
    32:18 *🔢 Atomic Numbers and the Proton*
    - Mosley linked atomic number to the positive charge of the nucleus.
    - Rutherford identified the proton as the nucleus of hydrogen.
    - Atomic number gained importance in defining element identity.
    34:54 *🚀 Artificial Transformation of Atoms*
    - Rutherford explored atom transmutation via alpha particle bombardment.
    - This required immense energy to overcome nuclear forces.
    - These studies opened the path to nuclear physics advancements.
    35:26 *🔄 Discovery of Nuclear Transmutation*
    - Rutherford achieved the first artificial transmutation by bombarding nitrogen with alpha particles.
    - This reaction produced oxygen and hydrogen, confirming the proton as a fundamental atomic particle.
    - Rutherford theorized the existence of a neutral particle to account for atomic mass discrepancies.
    38:59 *💡 Advancements in Nuclear Detection*
    - Development of sensitive detection instruments like the Geiger counter improved particle observation.
    - Alpha particles ionized gases, and the resulting charges were amplified for accurate measurement.
    - Early scintillation screens were used to observe particle collisions manually.
    42:09 *⚖️ Discovery of Isotopes*
    - Aston's mass spectrograph revealed that many elements are mixtures of isotopes with different atomic weights.
    - Chlorine was shown to be a mix of isotopes with masses of 35 and 37.
    - The existence of isotopes explained variations in atomic weights across elements.
    44:32 *⚛️ Discovery of the Neutron*
    - Chadwick confirmed the existence of the neutron, predicted by Rutherford in 1920.
    - Neutrons explained isotopic variations and were critical in nuclear reactions due to their lack of charge.
    - Neutrons could penetrate nuclei without being repelled, facilitating nuclear reactions.
    48:38 *🚀 Particle Acceleration and Atomic Bombardment*
    - High-voltage machines, like Cockroft and Walton’s accelerator, were developed to bombard atoms.
    - Accelerated protons split lithium nuclei, releasing alpha particles and confirming mass-energy conversion.
    - Einstein’s E=mc² equation was experimentally validated, showing mass could convert into vast energy.
    52:06 *🔄 Splitting the Atom and Mass-Energy Equivalence*
    - Cockroft and Walton split lithium nuclei, releasing measurable energy explained by E=mc².
    - This experiment proved small amounts of mass convert into significant energy.
    - The success of this experiment marked the dawn of practical nuclear energy research.
    57:26 *⚙️ Development of Advanced Particle Accelerators*
    - Machines like the synchrotron and cyclotron accelerated particles to high energies for nuclear research.
    - Deuterons were used to produce neutrons, essential for deeper nuclear studies.
    - Technological innovations addressed challenges in vacuum maintenance, radiation shielding, and magnetic field control.
    01:03:50 *💥 Discovery of Nuclear Fission*
    - Hahn and Strassmann discovered that uranium split into lighter elements, releasing energy.
    - Frisch experimentally confirmed uranium fission, leading to massive energy release.
    - This breakthrough paved the way for nuclear energy and atomic weapons.
    01:06:31 *🔗 Discovery of the Nuclear Chain Reaction*
    - Neutron release during uranium fission allowed for a self-sustaining chain reaction.
    - Spontaneous fissions could initiate uncontrolled reactions without external neutron sources.
    - This discovery laid the foundation for nuclear reactors and atomic bombs.
    01:07:51 *💣 Development of the Atomic Bomb*
    - U-235 was identified as capable of sustaining a fast chain reaction, unlike U-238.
    - Plutonium-239 was discovered through neutron capture and beta decay in U-238.
    - Massive U.S. facilities were built to produce U-235 and plutonium for bomb development.
    01:12:31 *🌋 The First Atomic Bomb and Its Impact*
    - The first atomic bomb was tested in New Mexico, confirming the destructive power of nuclear energy.
    - Hiroshima’s destruction in 1945 demonstrated the bomb’s catastrophic human impact.
    - The event highlighted the need for global efforts to prevent nuclear warfare.
    01:14:35 *⚙️ Transition to Peaceful Nuclear Energy*
    - Efforts began to adapt nuclear reactors to generate electricity.
    - Control rods and cooling systems were designed to manage reactor heat safely.
    - Radioactive byproducts found use in medical research, such as blood flow studies.
    01:17:07 *🌞 Exploring Fusion Energy*
    - Scientists explored replicating stellar fusion by fusing hydrogen into helium.
    - Fusion promised abundant energy if extreme heat and pressure could be managed.
    - The United Nations began discussing global nuclear disarmament and peaceful atomic energy use.
    01:18:41 *⚡ Future of Nuclear Power*
    - Research aimed to develop nuclear power plants for electricity generation.
    - Radioactive materials were used in medicine, biology, and scientific research.
    - Scientists hoped nuclear energy would increase global living standards and eliminate war.
    01:19:38 *🧬 Milestones in Atomic Physics*
    - Rutherford’s nuclear model and discovery of the proton and neutron revolutionized atomic theory.
    - Cockroft and Walton’s splitting of lithium validated Einstein’s E=mc².
    - Uranium fission and controlled chain reactions led to nuclear energy and weaponry.
    Made with HARPA AI

  • @whirledpeas3477
    @whirledpeas3477 Рік тому +2

    I have to say this is good for me, thanks

  • @kn9ioutom
    @kn9ioutom 16 днів тому +1

    AWSOME SCIENCE !!

  • @robdudley3867
    @robdudley3867 3 роки тому +3

    Wonderful! Thanks for sharing this.

  • @jimsvideos7201
    @jimsvideos7201 Місяць тому +2

    Remarkable.

  • @michaelogden5958
    @michaelogden5958 14 днів тому

    This video is really amazing. We take for granted this thing and that. Here, we see where much of our knowledge came from, and even many of the folks who figured it out - using relatively crude devices.

  • @Scoochie77
    @Scoochie77 24 дні тому +3

    Every one of these characters sounds like an absolute authority on the subject. I love physics history.

    • @davelowets
      @davelowets 6 днів тому

      I like ANY kinds of physics..... ancient, current, whatever..

  • @detectiveofmoneypolitics
    @detectiveofmoneypolitics 6 місяців тому +2

    1:27 PUBLIC CHANNEL* Educate on Money * Credit * Debt & Politics * Keep it Simple ! Ham Radio Operator VK3GFS is following this Overdue Debate ! 73s Frank

  • @ulisesfonseca7937
    @ulisesfonseca7937 3 роки тому +2

    thanks

  • @abcde_fz
    @abcde_fz 3 роки тому +10

    No Comments! Geez!! Never done a First Comment before!!!
    Old as this is, it's pretty good for anyone who wants to get a decent idea of how The Atom became useful to us all. Covers all the bases in the proper order, makes sure to include the contributions of some of the less well known names in atomic physics history. Needs little math to describe some aspects, and needs none at all to understand them. Well paced, too, if you ask me.
    Was kinda' like watching a light mystery or comedy film. Kept my attention all the way through.
    Hell, I'll give it an A.
    :-)

    • @bayekofsiwa365
      @bayekofsiwa365 3 роки тому

      This is how education is supposed to be done.

    • @donbrown5414
      @donbrown5414 3 роки тому

      Absolutely agree with your comments. Very well done, I wish I had seen this video 45 years ago in high school.

  • @DaleKallio
    @DaleKallio День тому

    A bit of humor..Was Uranium named for Uranus?😅 At 1:40:00 Particle acceleration is directly conveyed, I hope our next generation is ready for population and it's energy requirements. Implications of mutual destruction, and sustainability are in question. May we find resolution.

  • @mars4free
    @mars4free 23 дні тому +1

    @1:03:28 "Disintegration"?, I say "Transmission"

  • @thomasrussell4674
    @thomasrussell4674 Рік тому +2

    I love the way it says with thanks to ...
    ...Albert Einstein

  • @dizzo95
    @dizzo95 3 роки тому

    Q: ) Why Is There Something Rather Than Nothing?
    A: ) Because Magnetism is an attractive force, not a repulsive force ?
    That's a guess, gravity is also an attractive force.
    Isaac Asimov in a book thought it was because there were more protons than electrons in the universe ( thus forming matter )

  • @davidwilkie9551
    @davidwilkie9551 2 роки тому

    Uchicagoarts can now explain 3D-T Physics format in Geometrical Theoretical Drawing and Perspective Projection Techniques of transverse trancendental sync-duration Superspin Singularity Reciproction-recirculation.
    (You have to start, and finish, everywhere-when-> somewhere, ie conic-cyclonic logarithmic->holographic wave-packaging?)

  • @clarencewright9841
    @clarencewright9841 2 роки тому

    This is done by the British that's why it is so good

    • @davelowets
      @davelowets 6 днів тому

      😆 NO.
      The Brits couldn't even come up with their own nuclear bomb without help from the U.S.
      They tried SO hard to get the help, and we're desperate, because they just couldn't do it on their own.
      Facts....

  • @davelowets
    @davelowets 5 днів тому

    "Tcheeuubes"...
    I ALWAYS get a kick out of it when someone from across the pond pronounces "tubes".... 😂
    Edit: BUT, Electron Vacuum Tubes, are "Valves" over there... 🤨
    Valves are for plumbing, but not electronics. 🤷🏻

  • @buckaroundandfindout
    @buckaroundandfindout 2 роки тому +1

    If the definition of an atom is indivisible, and of course I'm paraphrasing. Then why do you classify uranium as an atom if it breaks down?

    • @irinabonney1721
      @irinabonney1721 Рік тому +1

      The definition of an atom is not indivisible , the video just said Dalton was hypothesizing.

    • @qed100
      @qed100 22 дні тому +1

      The chemical elements were dubbed "atoms" before it was discovered that they are composites. By that time the popular usage was too well established to change it.

    • @buckaroundandfindout
      @buckaroundandfindout 22 дні тому

      @qed100 so it's either the science is wrong or the scientist is wrong. Make up my mind.

    • @qed100
      @qed100 22 дні тому

      @@buckaroundandfindout
      It’s not wrong. It’s only an artifact of the way language evolves.

    • @davelowets
      @davelowets 6 днів тому

      ​@@buckaroundandfindoutThe scientist WAS wrong....
      Fission and Fusion PROVED that

  • @AntzLoks1314
    @AntzLoks1314 Рік тому

    el-Choctaw-lord-de-CalifasMexicoAztlan ANTZ Holywater i cali

  • @T0Mdisstroya
    @T0Mdisstroya 3 роки тому +1

    The only problem on this is, the us choose the not so efficient way to enreach uranium and was able to build the electronic for it. Fission reactors, electric propulsion, atomic propulsion engines missiles, rockets, EMPs, helicopters are all developments done in europe between. ww1 & ww2 with the target to be autark from oil. the invented synthetic rubber, synthetic oil, synthetic fuel, they. build new ways to come to energy, build new plants using water to generate electricity. also aerodynamic engineering, forged industrial steel forming and constructions with steel concrete, where results on forcing the chemical industry and supporting technical engineers too create their visions. the part of the allies was to steal all this things, test & reverse engineer it, use it in military top secret projects but hide it as long as possible from the public to defend the money printing fossil energy industry and the world economy & global fincial system based on the „petro-dollar"

    • @abcde_fz
      @abcde_fz 3 роки тому

      I agree. But certainly not with everything.
      I have now seen enough evidence to follow the portion on how pre-Nazi/Nazi Germany was MUCH further along in nuclear weapons research and development than we've been told for 70 (and more) years.
      Scary thought there.
      But the US stole no more 'intellectual property' from Germany and Eastern/Western Europe than what would be considered normal 'shady dealings' between nation-states all throughout history.
      As far as WARTIME is concerned, well, all bets are off.
      Intelligence/data gathered during wartime by ANY means is just flat-out how the world WORKS.
      That's my first point, but it needs to be put in context, and that context is NOT, by any means, limited to the time period during which Nazi Germany became a richer, healthier nation-state. In other words, the period between roughly 1933 and 1939. The period during which Hitler and his political machine turned Germany around 180 degrees, reversing the horrible condition the German economy was left in after WWI. Making real, economically valid changes in the way the German nation controlled it's resources. Except for the isolationist policies, which were un-sustainable in the long term. Germany lacked the natural resources necessary to remain isolationist. This is a large part of why Hitler thought he was going to rule the world. By making it ALL Germany. No more isolationism when you're the only nation-state on the planet.
      OK, the context that 'intellectual property' existed in MUST be mentioned to dispute the ridiculous assertion that the US somehow stole all it's knowledge from friggin' Nazi Germany.
      Eastern/Western European scientists and academics **they were FAR from all being German nationals or even citizens.**
      Then, as now, researchers and academics work in universities, government sponsored programs, and private industry, as they have for a couple hundred years.
      These researchers and academics PUBLISHED their work. They SHARED much of it, as has been the case, again, for hundreds of years.
      The US didn't need to 'steal' anything from Nazi Germany. We were part of the world of academia and research just as well as any OTHER country on earth. We had our scientists and researchers and academics, and the fruits of their labors, and these guys ALSO published in the various journals, then as now.
      I could go on, but it would be pointless. The facts are the facts. Yes, Nazi Germany was FAR ahead in their nuclear weapons research than we've been told for a good couple decades.
      But do your research. Before Germany became NAZI Germany, began to shy away from what had been normal relations with the rest of the world, and essentially moved into 'war is coming' mode, the US and the rest of the world interacted with German and OTHER Eastern/Western European intellectuals, and THEY interacted with the US, in kind. A GOOD portion of cutting edge research of all kinds WAS being done in Eastern/Western Europe, but that's not the same as saying it was all being done in Germany. That's absurd. The US didn't need to steal anything from Germany during peacetime. By definition, we weren't stealing from Germany during WWII, and finally, German and OTHER Eastern/Western European intellectuals WANTED to come to the US AFTER WWII.
      We didn't steal anything. It was either shared through the normal channels of scientific research, or CAME to the US eventually, anyway.

    • @davelowets
      @davelowets 5 днів тому

      You have that ALL wrong.... Europe couldn't figure out how to harness the energy from atoms at all. It was the U.S. that figured it out, AND figured out the best way to enrich it.
      The nations on the European continent were BEGGING the U.S. for the technology to do it. They could ONLY build the bomb with help from the U.S. They tried for years with nothing but failure and got nowhere. Then they got flustered and desperate, and finally got the info from the U.S.
      It IS what it IS, and THAT'S the way it happened... 🤷🏻