Rational Thinker
Rational Thinker
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  • Просмотров 487 819
The Man Who Accidentally Saved Millions of Lives
Alexander Fleming was a British microbiologist who is most known for his discovery of penicillin. His discovery happened accidentally after leaving out a culture of bacteria while on a vacation, leading to contamination of the culture by a fungus. Ernst Chain and Howard Florey took this discovery and made it producible at a massive scale, leading to penicillin saving hundreds of millions of lives in the years to come.
Просмотров: 129

Видео

The Father and Son Who Shared a Nobel Prize in Physics
Просмотров 3 тыс.14 дней назад
William Henry Bragg and William Lawrence Bragg were a father and son duo that contributed heavily to both X-ray crystallography and X-ray spectroscopy. W.H. Bragg is known for the invention of his X-ray spectrometer, while W.L. Bragg is known for his simple but effect equation, known today as Bragg's law, which relates the incident angle of an x-ray with its angle of scattering in a crystal lat...
The Physicist Who Unveiled Crystal Structure With X-Rays
Просмотров 3,8 тыс.21 день назад
Max von Laue was a German physicist most known for his experiment that revealed crystalline structure though x-ray diffraction. This experiment also showed that x-rays are a form of light, and for both of these discoveries, he won the Nobel Prize in physics 1914.
The Chemist Who Discovered Vitamins
Просмотров 3,8 тыс.28 дней назад
Casimir Funk was a Polish chemist who discovered the first 4 vitamins and is therefore responsible for curing the 4 correlated diseases. He coined the term "vitamine" in reference to the chemical structure of the first vitamin he discovered, thiamine. He, perhaps unfairly, was never given credit, for the Nobel Prize for the discovery of vitamins were give to predecessors who found a link betwee...
The Physicist That Validated the Existence of Atoms
Просмотров 5 тыс.Месяц назад
Brownian Motion was first discovered by botanist Robert Brown, when doing experiments with pollen grains suspended in water. Since 1828, many developments on this theory have happened, and 1909 experiments done by Jean Baptiste Perrin confirmed Einstein's proposed theory in 1905 that Brownian Motion is due to collisions with molecules.
The Physicist Who Split Light Using an Electric Field
Просмотров 46 тыс.Месяц назад
Johannes Stark was a German physicist who is known for two main discoveries done through research with canal rays, otherwise known as anode rays. He discovered the Doppler Effect in canal rays and also used them to split spectral lines of luminous hydrogen using strong electric fields.
The Man Who Saw Subatomic Particles for the First Time
Просмотров 10 тыс.Месяц назад
CTR Wilson was a meteorologist and physicist known for the invention of the cloud chamber, for which he won the Nobel Prize in 1927. His invention allowed scientists to see radiation and other atomic and subatomic particles for the first time.
How Rutherford Split the Atom for the First Time
Просмотров 46 тыс.Месяц назад
Ernest Rutherford was one of the greatest scientists of the 20th century, and was arguable the biggest pioneer of nuclear physics. This video covers his last major discovery: That alpha particles, when bombarding nitrogen atoms, cause the nitrogen to transform and release a proton in the process. This was the first documentation of a proton being expelled from the nucleus of an atom.
How A Radioactive Element Race Led to a Breakthrough Discovery
Просмотров 9 тыс.2 месяца назад
Frederick Soddy was a chemist who, after a scientific race with chemist Kasimierz Fajans, discovered isotopes of atoms. He won the Nobel Prize in Chemistry in 1921 for his contributions.
The Mystery That Led to 3 Nobel Prizes in Physics (Including Einstein's)
Просмотров 36 тыс.2 месяца назад
The photoelectric effect was a mysterious phenomenon that, alongside blackbody radiation, led to the birth of quantum physics. Three physicists won the Nobel Prize in Physics for their contributions to explaining this phenomenon: Philipp Lenard, Albert Einstein, and Robert Millikan.
The Experiment That Proved the Quantum Nature of the Atom
Просмотров 30 тыс.2 месяца назад
The Franck-Hertz experiment, done in 1914, was a revolutionary moment in quantum physics history, as James Franck and Gustav Hertz experimentally proved that electrons transfer energy in discrete amounts. They did this by firing electrons in a de-pressurized chamber filled with vaporized mercury and firing electrons between electrodes with varying voltages.
How the Oil Drop Experiment Discovered the Charge of the Electron
Просмотров 14 тыс.2 месяца назад
Robert Millikan and Harvey Fletcher were two physicists now known for discovering the mass and the charge of the electron. They did this through their famous "Oil Drop Experiment" in which they hovered electrically charged droplets of oil in a chamber with an electric field applied. This video covers the history of Millikan and Fletcher, and discusses some controversies that followed the experi...
The Physicist Who Brought Quantum Physics to the Atom
Просмотров 6 тыс.3 месяца назад
Niels Bohr was a Danish physicist known most notably for his proposal of electrons orbiting the nucleus of an atom in discrete energy levels. He applied the newly formed laws of quantum physics to atomic structure, and helped the scientific community to start unraveling the quantum nature of our world.
The Physicist Who Discovered Cosmic Rays
Просмотров 1,4 тыс.3 месяца назад
Victor Franz Hess was an Austrian physicist who is known for the discovery of cosmic rays. He did this by using a special electroscope that he brought with him on a series of flights in his hot air balloon to study ionizing radiation in space. For his experiments and discovery, he won the Nobel Prize in physics in 1936.
How the Gold Foil Experiment Changed Our Understanding of the Atom
Просмотров 21 тыс.3 месяца назад
J.J. Thomson is credited with the discovery of the electron, but his plum pudding model of the atom wasn't as accurate as thought at first. A series of experiments done by Ernest Rutherford, Hans Geiger, and Ernest Marsden in the coming years, most notably, the gold foil experiment, would lead to Rutherford's proposed nucleus-based model of the atom that would take atomic understanding to new l...
The Physicist Who First Liquefied Helium
Просмотров 3,8 тыс.4 месяца назад
The Physicist Who First Liquefied Helium
The Nobel Laureate Who Was Blinded in His Pursuit of Innovation
Просмотров 13 тыс.4 месяца назад
The Nobel Laureate Who Was Blinded in His Pursuit of Innovation
The Physicist Who Pioneered Thermal Radiation
Просмотров 13 тыс.4 месяца назад
The Physicist Who Pioneered Thermal Radiation
The Physicist Who Transformed Gas Theory
Просмотров 40 тыс.5 месяцев назад
The Physicist Who Transformed Gas Theory
Did Edison Really Invent the Light Bulb?
Просмотров 1 тыс.5 месяцев назад
Did Edison Really Invent the Light Bulb?
How Rutherford Discovered Radioactive Decay
Просмотров 17 тыс.5 месяцев назад
How Rutherford Discovered Radioactive Decay
How Color Photography Was Proven to be Possible
Просмотров 2 тыс.6 месяцев назад
How Color Photography Was Proven to be Possible
The Chemist Who Accidentally Solved Fermentation
Просмотров 4,3 тыс.6 месяцев назад
The Chemist Who Accidentally Solved Fermentation
The Most Famous Null-Resulting Experiment in the History of Physics
Просмотров 11 тыс.6 месяцев назад
The Most Famous Null-Resulting Experiment in the History of Physics
The Chemist Who First Isolated Fluorine
Просмотров 37 тыс.7 месяцев назад
The Chemist Who First Isolated Fluorine
How the Electron was Discovered
Просмотров 97 тыс.7 месяцев назад
How the Electron was Discovered
The Chemist Who Revolutionized the Dye Industry
Просмотров 2,7 тыс.7 месяцев назад
The Chemist Who Revolutionized the Dye Industry
The Physicist that Paved the Way to Einstein's First Breakthrough
Просмотров 1,5 тыс.7 месяцев назад
The Physicist that Paved the Way to Einstein's First Breakthrough
When a Physicist and a Chemist Get Together...
Просмотров 5688 месяцев назад
When a Physicist and a Chemist Get Together...
Electrolysis is Literally Modern Alchemy
Просмотров 1,1 тыс.8 месяцев назад
Electrolysis is Literally Modern Alchemy

Комментарии

  • @stevenlaube7535
    @stevenlaube7535 15 часов назад

    you do understand what you said that he documented a reaction , ground breaking enough ,he did not split the atom

  • @justjoe942
    @justjoe942 22 часа назад

    I enjoyed that very much; thanks for posting. God bless.

  • @kalpdruma
    @kalpdruma День назад

    Ernest was an earnest scientist.

  • @jhonwask
    @jhonwask День назад

    I love this channel, but unfortunately, RUclips is making it more difficult to watch with the mandatory 10 minute commercials.

  • @rayrocher6887
    @rayrocher6887 День назад

    thanks about Niels Bohr, thanks Hertz and Franck. I love the Munich and Berlin Physics. sorry the world stupider since 1950's

  • @Bob-h3n
    @Bob-h3n День назад

    So its more accurate to say that he observed the splitting of the atom than he caused it. I had never known tge method before, thanks.

  • @geoffgeoff143
    @geoffgeoff143 День назад

    Incorrect. He wasn't the first to split the atom. He was the first to observe it.

  • @geoffgeoff143
    @geoffgeoff143 День назад

    I thought young Einstein did it in the wood shed.

  • @colinpovey7923
    @colinpovey7923 2 дня назад

    Ernest Rutherford is my favorite scientist. From a sheep ranch in New Zealand, he was educated in New Zealand, then Cambridge, before moving to Canada. His list of accomplishments is massive, but to me, his biggest achievement was in educating the next generation of scientists. 10 of his Ph.D. grad students got Nobel Prizes, no body else has ever had more than 2.

  • @innertubez
    @innertubez 2 дня назад

    Wait so Rutherford predicted the neutron?

  • @charlesemond7916
    @charlesemond7916 3 дня назад

    If there’s a theory about chaos then you better rethink that term. As there’s no such thing as chaos but rather unexplained events and unpredictable outcomes.

  • @charlesemond7916
    @charlesemond7916 3 дня назад

    Maybe he was combative because he was ripped off

  • @frunomaol5069
    @frunomaol5069 4 дня назад

    At min 1:16, what is the component M? Is a source of high energy used in the experiment or is just natural emissions from the material on the slider component? I think the video needs some extra info.

  • @GaryMacAuthor
    @GaryMacAuthor 4 дня назад

    McGill!!!

  • @RaymondSackenheim
    @RaymondSackenheim 4 дня назад

    "Plunk"? In all of the texts from my college science classes, and all of the lectures, I always saw and heard his name pronounced and spelled as Plank. You learn something new everyday.

  • @daemon1143
    @daemon1143 5 дней назад

    Sad that most school only teach that he came up with a later incorrect model of the atom, and nothing more.

    • @RationalThinker118
      @RationalThinker118 2 дня назад

      Agree, it's crazy just how much Rutherford did. A giant in experimental physics

  • @Michaelmas68
    @Michaelmas68 6 дней назад

    That would be a tough one for sure since the very definition of an atom is still undetermined. And the materialist BS of “modern” science continues on 💪🖕🏻

  • @karlD1963
    @karlD1963 6 дней назад

    He used a katana.

  • @1Clavdivs
    @1Clavdivs 7 дней назад

    "Spitting of the atom" does not refer to the process described, although it is indeed induced partial splitting and a major achievement. Furthermore, Rutherford went on to develop atom smashers but the spitting the atom and releasing more energy that was put in , remained elusive, leading him to claim that nuclear energy would not be possible for another generation. Fermi was the first to split the atom. Otto Hahn, trained by Rutherford in nuclear chemistry repeated the experiment and found boron. Lise Meitner was then able to deduce that U235 was split but Hahn took the credit as Meitner had escaped nazi Germany. The problem with recognizing Rutherford as being the first to split the atom is that his experiment did not lead to energy production, reactors that produce plutonium (the major fissionable material) or bombs that we associate with nuclear fission, whereas Fermi's did. This point is historically important as Fermi defected from Fascist Italy to the USA, had he not done so the world might have been different.

  • @prashantpandya1508
    @prashantpandya1508 7 дней назад

    Whichever the way he did it, he made me fail in physics!!!😂😊😂😊😂

  • @Toyos-yk3ri
    @Toyos-yk3ri 8 дней назад

    Incredibly smart men.

  • @dargi_amorim
    @dargi_amorim 8 дней назад

    Very interesting, thank you ! When I studied solid-state physics in the uni I heard a lot the surnames Bragg and Laue but I never searched about these scientists. Thanks to this video and the previous one I finally know who were they. Thanks a lot !

  • @JoeMacdonagh
    @JoeMacdonagh 9 дней назад

    E.T.S Walton split the atom for the first time.

  • @zachreyhelmberger894
    @zachreyhelmberger894 9 дней назад

    Nitrogen?!? I was expecting uranium or some other heavy element...

  • @zachreyhelmberger894
    @zachreyhelmberger894 9 дней назад

    Well done!!

  • @elmolewis9123
    @elmolewis9123 12 дней назад

    Great informative video. Quality is first-rate.

  • @fightwithbiomechanix
    @fightwithbiomechanix 12 дней назад

    I use X-Ray Diffraction in my Face Centered Cubic metals research!!! So much easier that Scanning Electron Microscopy in terms of sample prep ❤

  • @georgemoore7186
    @georgemoore7186 12 дней назад

    what's the big deal about splitting the atom? anyone can do it, just get your atom, put it on a solid surface, get out your chisel, carefully put it on the atom, then wack it with a Mallet as hard as you can, and the atom will split in two, easy peasy! Just be careful cos the pieces sometimes fly everywhere and it can be a devil to find all of them🤣🤣

  • @ghostmantagshome-er6pb
    @ghostmantagshome-er6pb 13 дней назад

    I remember reading some thought the son rode on the dads coattails but it wasn't true they both showed genius and were deserving.

  • @jarikinnunen1718
    @jarikinnunen1718 13 дней назад

    I had scientific 1918 magazine which did include article of Rutherford experiment.

  • @benstallone6784
    @benstallone6784 13 дней назад

    The Braggs have a lot to brag about

  • @richardthunderbay8364
    @richardthunderbay8364 13 дней назад

    I really like how you explain physics in a very understandable way in these short videos. The biographical and historic information is also much appreciated.

  • @Blu3B33r
    @Blu3B33r 13 дней назад

    Laurence reminds me a bit of a young Cillian Murphy

  • @AutomaticBadger
    @AutomaticBadger 13 дней назад

    Really appreciate the quality of your videos. They always make my weekend better

    • @RationalThinker118
      @RationalThinker118 13 дней назад

      I really appreciate you commenting every video and supporting the channel too!

  • @jimsvideos7201
    @jimsvideos7201 14 дней назад

    I can only imagine the dose of ionizing radiation these scientists absorbed.

    • @dogcarman
      @dogcarman 13 дней назад

      They not only discovered a lot of physics, they also discovered new and exciting ways to get cancer.

  • @rayrocher6887
    @rayrocher6887 14 дней назад

    I like the video, love you love intelligence science

  • @rayrocher6887
    @rayrocher6887 14 дней назад

    Thanks Bauer, thanks van lowen

  • @gavinedmondstone316
    @gavinedmondstone316 14 дней назад

    I am enjoying these videos and seeing some of the human side of the pioneers of methods that became routine parts of my working days. On my first x-ray diffractometer the diffraction pattern was record on film. If you couldn't figure out what my unknown specimen was by comparing the experimental film strip with a library of film strips of known materials then resort to using the Bragg equation to determine the d-spacings of the three strongest lines was required. Then you had use books that indexed the d-spacings and if you were lucky could figure out what you had. God help you if it was a mixture. Our next instrument was computerized but manual use of the Bragg equation occasionally came in handy for sorting out an artifact from a mystery component.

  • @melodymonger
    @melodymonger 14 дней назад

    Thank you for that fascinating history lesson 🙏. That really was an excellent video 👏🤩

  • @outerrealm
    @outerrealm 14 дней назад

    Can’t you narrate your own videos? Are you lazy? This fake voice sucks

  • @shammusomalley8986
    @shammusomalley8986 15 дней назад

    OK, show us a live virus under scanning electron microscope. Prove virology once and for all. They won't do it, because they can't do it, because scanning electron microscope doesn't exist, and you're being lied to. If it's not repeatable, it's not science. When the tools and methods of "S"cience are only available to a few people, and held under lock and ket, that is the opposite of scientific method. Trust should have no place in real science. If you have to trust someone's word, it's not science.

  • @dargi_amorim
    @dargi_amorim 15 дней назад

    Your videos are awesome !

  • @reluginbuhl
    @reluginbuhl 16 дней назад

    Box? Your initial description is confusing. Did you mean to say "screen"?

  • @mvdbussc
    @mvdbussc 18 дней назад

    Thanks! I really enjoy your content, keep it up!

  • @assabjorn
    @assabjorn 19 дней назад

    Thank you for learning me and thank to all and forgett youuuuu tube ❤

  • @assabjorn
    @assabjorn 19 дней назад

    He not electro statick light ..no I doubt I think never no one made still , no current

  • @assabjorn
    @assabjorn 19 дней назад

    It seems like alll great inverotrs not easy life 😅good I’m not telling my project😂

  • @assabjorn
    @assabjorn 19 дней назад

    Tesla kind of a man honnour❤

  • @cabanford
    @cabanford 20 дней назад

    Great channel. Instant view ❤

  • @paulpaulsen7777
    @paulpaulsen7777 20 дней назад

    At this time, we still had some brains in Germany. Not anymore. Now we mostly consist of people from some Ubbualakk country, including their behavior