JJ Thomson Cathode Ray Tube Experiment: the Discovery of the Electron

Ғылым және технология

In 1897, JJ Thomson discovered the electron in his famous cathode ray tube experiment. How did it work and why did Thomson do the experiment in the first place? Watch the video and find out!
As usual a big thank you to the fabulous Kim Nalley for her background music and her version of Schoolhouse Rock's "Electricity, Electricity" for my intro song.

Пікірлер: 466

  • @XB10001
    @XB100012 жыл бұрын

    5:37 ... that's not even close to 1/3 of the speed of light. Did you mean per second?

  • @Kathy_Loves_Physics

    @Kathy_Loves_Physics

    2 жыл бұрын

    Yes I did. Slip of the tongue

  • @XB10001

    @XB10001

    2 жыл бұрын

    @@Kathy_Loves_Physics :-) ... you can edit the video and overlap some text with the correction. That's common practice. Something like "* Per second" that's easily readable.

  • @Kathy_Loves_Physics

    @Kathy_Loves_Physics

    2 жыл бұрын

    I actually can’t. I tried with another video and it was impossible I can only edit it and reload it in which case I lose all my views which I think is not worth it for a little slip of the tongue.

  • @XB10001

    @XB10001

    2 жыл бұрын

    @@Kathy_Loves_Physics oh, that's a shame. Anyway, clarify in the description perhaps.

  • @Kathy_Loves_Physics

    @Kathy_Loves_Physics

    2 жыл бұрын

    Good idea. Will do

  • @edcooper5841
    @edcooper58412 жыл бұрын

    Kathy makes science and history come alive. I would loved to have been in her classes.

  • @joeolejar
    @joeolejar2 жыл бұрын

    I'm hooked! Yours may be the history channel for electrical nerds.

  • @nhack5504
    @nhack55042 жыл бұрын

    I'm a retired engineer and have found your videos most interesting. I've learned many bits of background I had not learned back in school. I particularly like the progression of science that your videos provide. Nicely done!

  • @GoldFoilDecendent
    @GoldFoilDecendent10 ай бұрын

    Great to hear the history of the discovery of the electron. My last name is Rutherford and as an electrical engineer have found myself drawn to learn more about Lord Rutherford. Enjoyed your video on the works of his Professor.

  • @rumlia
    @rumlia2 жыл бұрын

    I have only one thing to say: your explanations and expressions are wonderful. Thanks for making me curious to learn when I have crossed 60 yrs of life. Cheers!

  • @h2energynow
    @h2energynow2 жыл бұрын

    Find the explanations great, what makes it special is you also go into why, how, and what motivated the inventors. Awesome.

  • @ronkirk5099
    @ronkirk50992 жыл бұрын

    I knew that J.J. Thomson was a trail blazing scientist, but it was very interesting to hear that he mentored so many Nobel laureates. Science history is fascinating. Great video.

  • @shawnmulberry774
    @shawnmulberry7743 жыл бұрын

    With all due respect to JJ Thomson, I'm just glad we ultimately choose electrons over corpuscles.

  • @2lefThumbs

    @2lefThumbs

    2 жыл бұрын

    Corpuscle is ok, "corpsjcle" sounds like a zombie treat"

  • @physicsAmbler

    @physicsAmbler

    2 жыл бұрын

    And even better than “corpsucles”!

  • @djmips

    @djmips

    2 жыл бұрын

    Agree? But we should have adopted his current flow direction. XD

  • @shawnmulberry774

    @shawnmulberry774

    2 жыл бұрын

    @@djmips Absoolutely, current flow is so unnecessarily confusing.

  • @lawrencedoliveiro9104

    @lawrencedoliveiro9104

    2 жыл бұрын

    I thought Newton used the term “corpuscle”, too, only this was for the particles of light.

  • @proudsnowtiger
    @proudsnowtiger5 жыл бұрын

    I lived and worked in Cambridge for a while, and it was always a thrill to drink in the same pubs where the discoverers of the electron, the structure of DNA and so much more sat and talked. Not to mention that Maxwell started the Cavendish, so it's holy ground indeed. But hey, lay off the humble plum pudding. It's part of every English childhood, and once you've learned to digest it it's actually quite nice.

  • @Kathy_Loves_Physics

    @Kathy_Loves_Physics

    5 жыл бұрын

    proudsnowtiger sorry I shouldn’t insult plum pudding without trying it first!

  • @Kathy_Loves_Physics

    @Kathy_Loves_Physics

    5 жыл бұрын

    @Cliff Matthews are plum pudding fans "food lovers"?? arg, there I go making fun of plum pudding *again*. I can't seem to help it. :P

  • @wiregold8930

    @wiregold8930

    2 жыл бұрын

    @@Kathy_Loves_Physics make sure you cover it with brandy sauce (syrup) first!

  • @chuckotto7021
    @chuckotto70213 ай бұрын

    Dear Cathy, You are so wonderful! You possess the vitality and focus to bring dusty sheafs of scientific tracts to LIFE!

  • @annasdad8008
    @annasdad80082 жыл бұрын

    I just recently found your channel and really enjoy it. I remember duplicating a number of the classic experiments in a physics class back in high school (early 1970s). It was fascinating then and it still is. By the way, I did notice an error. To be going “almost a third of the speed of light” would mean the electrons were traveling 60,000 miles PER SECOND, not per hour.

  • @julianramirez4465
    @julianramirez44655 жыл бұрын

    Kathy i love u, glad u came back. Loved the Thompson story.

  • @jamesknapp64
    @jamesknapp64 Жыл бұрын

    Gonna have to binge more of your stuff Cathy. As a former Math and Physics double major this feels like all the gaps of why from the books that has been stripped out.

  • @njkauto2394
    @njkauto23942 жыл бұрын

    I truly couldn't stop laughing at people being tortured with plum pudding. As an antipodean (Australian), I was tortured with plum pudding every Xmas and New Years. Now, as an old man, I actually look forward to it each year. I love your sense of humour, Kathy 🤣

  • @jgboyer
    @jgboyer2 жыл бұрын

    Your videos always make me happy! I love to hear the stories of how it happened and who did what.

  • @ganesh28787872
    @ganesh287878722 ай бұрын

    No words to express the thanks to you kathy for such wonderful contribution by bringing the fascinating history of all scientific events with such a simplicity. Thanks a ton

  • @patrickcleveland8148
    @patrickcleveland81482 жыл бұрын

    Just compliments… I enjoy listening in. I have spent 50 years in the industrial world and have heard all the names, you so kindly mention. Never understood the stories behind the names. Thank you for your research and sharing with us.

  • @MrQbee87
    @MrQbee872 жыл бұрын

    Hi. I just discovered your channel... and I LOVE it. It's just so adorable when you use modern vocabulary talking abut historical figures, and the little jokes you put in here and there. I like the fact that the videos have this "amateur look", that shows dedication and geeky passion, and are not full professional and monetization oriented. I'm binge watching your videos right now. Also kudos for your pronunciation of Skłodowska's name.

  • @chriswalker7081
    @chriswalker70812 жыл бұрын

    These are great videos. The stories behind the discoveries are so interesting and add a real human element. Your presentation style is perfect - keep it up!😁

  • @MichelangeloFPV
    @MichelangeloFPV2 жыл бұрын

    Congratulations for your great channel Kathy!!! I love how objectively you portray characters often misunderstood like the great Nikola Tesla. I really appreciate your dedication in researching and sharing all these historical curiosities !!!! This also really helps to realize that these were human beings and sometimes not so brilliant, when trying to explain their findings.....

  • @videolabguy
    @videolabguy2 жыл бұрын

    Loved this one, Kathy. Of course I did. My career is constructed on the cathode ray tube and all its derivatives. In fact, I was working on one designed in 1939 today. Most recently, I successfully got pictures out of an authentic Farnsworth image dissector. I love physics and science too! Thanks for your channel. You rock.

  • @Kathy_Loves_Physics

    @Kathy_Loves_Physics

    2 жыл бұрын

    This is funny that you mention a Farnsworth image detector because in 3 to 4 more videos I’m finally (finally) going to do my video on Philo Farnsworth. Hey, maybe we could do a bit of a collaboration. Shoot me an email at KathyLovesPhysics(AT)gmail.com if you are interested.

  • @Felix-ge4sd
    @Felix-ge4sd3 ай бұрын

    I rarely comment, but thank you so much for this! This is an interesting, well-illustrated, and very clear video to watch!! You really gave us an insight of what was going on in Thomson's mind, and this is exactly what I needed!

  • @vectorsigma9903
    @vectorsigma99032 жыл бұрын

    These are the best videos ever. Love the history and characters in them. Thank you Kathy!

  • @SteveRaynerMakes
    @SteveRaynerMakes2 жыл бұрын

    I'm subscribed, and now I'm spending all day watching your videos.

  • @yuvrajcharan5387
    @yuvrajcharan538710 ай бұрын

    For years I have been searching for an video which actually combines pure physics with contemporary history your videos make that reality thank you very much for that. Love from India

  • @JamesFSmith-cb9lz
    @JamesFSmith-cb9lz2 жыл бұрын

    Kathy....you're awesome! Thanks!

  • @indianhistorybuff
    @indianhistorybuff Жыл бұрын

    Wow! Your Chanel is exactly what I was looking for! The story of the experiments, the conclusions and then contradictions which led to better and better understanding.

  • @iaov
    @iaov Жыл бұрын

    Love your videos Kathy! Thanks little sister. You rock!!

  • @danielforderer968
    @danielforderer9682 жыл бұрын

    Congrats to Kathy. Your Videos are fun to whatch and listen to.

  • @alastairchestnutt6416
    @alastairchestnutt64165 жыл бұрын

    Love your channel. Interesting and informative. Often watch more than once to grasp all the ideas.

  • @Kathy_Loves_Physics

    @Kathy_Loves_Physics

    5 жыл бұрын

    Hope that is a good thing and not a bad thing (watching twice).

  • @simonmasters3295

    @simonmasters3295

    Жыл бұрын

    I love your videos

  • @vijay_r_g
    @vijay_r_g3 жыл бұрын

    Its from your channel that I get many of my doubts cleared....I'm really happy. You really owe more ....

  • @jackd.ripper7613
    @jackd.ripper76135 жыл бұрын

    I can't believe I was 7 hours late to my favorite KZread channel. I wish your videos were an hour. The perfect blend of history and science. They leave me wanting to smoke a cigarette afterward and looking forward to more.

  • @Kathy_Loves_Physics

    @Kathy_Loves_Physics

    5 жыл бұрын

    Jack D. Ripper and here I was worried that my videos are too long. I always try to make em shorter than 10 min and almost always fail.

  • @Kathy_Loves_Physics

    @Kathy_Loves_Physics

    5 жыл бұрын

    Jack, I got a new video out!

  • @pipb1426
    @pipb14263 жыл бұрын

    Watched all the vids on youtube on this topic for my chem prac. This one was by far the best, you explain things so well! Just amazing.

  • @jeffmills4103
    @jeffmills41032 ай бұрын

    I enjoy the story behind the discovery; the putting together the various puzzle oieces and other's contributions.

  • @stanallen1072
    @stanallen10722 жыл бұрын

    Loved the history. Thanks Kathy.!

  • @brettselph7591
    @brettselph75912 жыл бұрын

    Kathy, even if i freeze to death (and become a corpsicle), I'm always gonna love your videos! ❤️

  • @Kathy_Loves_Physics

    @Kathy_Loves_Physics

    2 жыл бұрын

    Aww you turned my mispronunciation into a compliment. Thank you. 😍

  • @brettselph7591

    @brettselph7591

    2 жыл бұрын

    @@Kathy_Loves_Physics Oh no, now i adore you even more! This is very bad for a corpsicle, if i melt 💘

  • @davidharvey6169
    @davidharvey61692 жыл бұрын

    love it, very cool and fun to learn when you are presenting the information.

  • @timothym2241
    @timothym22412 жыл бұрын

    Thank you for making these videos so interesting and informative.

  • @jeffharrison1090
    @jeffharrison1090 Жыл бұрын

    So interesting to find out that these giants in physics weren't born with a silver spoon in their mouths! Or had intuitive insight at all times. You convey their truly humble beginnings as well as their brilliant observations, their spats, their loves and their humanity (gifts and faults) that we all have! And make it all so entertaining! Thx so much!

  • @amramjose
    @amramjose3 ай бұрын

    Haliday and Resnick was some 40 years ago for me, thus your videos are a great refresher of the electricity portions of the course. Cheers.

  • @ricardopiasentin5193
    @ricardopiasentin5193 Жыл бұрын

    I do love your classes. Thank you very much.

  • @SabaDhutt
    @SabaDhutt4 жыл бұрын

    That was amazing. Comprehensive and to the point. Lady, you deserve a million subscribers. Keep up the good work.

  • @Kathy_Loves_Physics

    @Kathy_Loves_Physics

    3 жыл бұрын

    Thank you! 😊

  • @jeffmills4103
    @jeffmills41032 ай бұрын

    Thank you for posting and sharing!

  • @joeolejar
    @joeolejar Жыл бұрын

    I really enjoy watching your videos a second time when it pops up in my KZread feed .

  • @willyjensen8595
    @willyjensen8595 Жыл бұрын

    Wonderful history lesson about the electron, thanks

  • @enthros5116
    @enthros51162 жыл бұрын

    I love Kathy and physics too. Now I grasp Physics a little more, thanks 4 the awesome videos. You Kathy are Marvelous

  • @Kathy_Loves_Physics

    @Kathy_Loves_Physics

    2 жыл бұрын

    Thank you 😊

  • @calvingrondahl1011
    @calvingrondahl10112 жыл бұрын

    Exciting and informative. Thanks Kathy.

  • @fairnut6418
    @fairnut64182 жыл бұрын

    9:18 love the quick review on the “dessert”

  • @MrDsalomon
    @MrDsalomon2 жыл бұрын

    In a word, important and elegant (both the video and JJ's work).

  • @bradleybobbs
    @bradleybobbs2 жыл бұрын

    It's funny how, at 1:50, CTR Wilson is misspelled as "CRT Wilson", which made me wonder whether his dedication to the Cathode Ray Tube was so great that he named himself after it!

  • @Kathy_Loves_Physics

    @Kathy_Loves_Physics

    2 жыл бұрын

    Ha! Maybe I was unconsciously honoring him.

  • @1945jlee
    @1945jlee2 жыл бұрын

    Wow, just totally amazing...! Love it...

  • @warrendargusch5873
    @warrendargusch58732 жыл бұрын

    Bravo! An amazing video. Filled in the blanks too!

  • @eggroll1up918
    @eggroll1up9182 жыл бұрын

    Another great video Kathy.

  • @bzigelnik
    @bzigelnik2 жыл бұрын

    I cannot find the right superlatives for your videos. I’m going to watch every one of them.

  • @SimonSozzi7258
    @SimonSozzi72582 жыл бұрын

    I really could spend all day watching your videos.

  • @sakshamdixit2759
    @sakshamdixit27592 жыл бұрын

    I felt an element of authenticity from your communication. Well explained dear.

  • @parulraizadaschannel-sl8bj
    @parulraizadaschannel-sl8bj4 ай бұрын

    Very well made videos! Superb content and great presentation!

  • @rand49er
    @rand49er2 жыл бұрын

    I've now watched maybe eight or nine of your videos, and I've enjoyed each and every one of them. They are a mix of history and scientific explanation. I just love it!

  • @GojoSaturo-oy3wb
    @GojoSaturo-oy3wb2 күн бұрын

    you explained this sooo well and i thank you for that because i have a test after tomorrow

  • @noxnc
    @noxnc2 жыл бұрын

    Excellent video

  • @bearcalw
    @bearcalw2 жыл бұрын

    Thank you for teaching me an old man wanting to learn about electronics you are such a good teacher

  • @rubusroo68
    @rubusroo682 жыл бұрын

    these videos are fantastic!

  • @blackshadowofmysoul
    @blackshadowofmysoul2 жыл бұрын

    Best channel explaining about electron! Thanks

  • @ashutoshhiremath4578
    @ashutoshhiremath45782 ай бұрын

    Awesome job

  • @shrravanpatankar77
    @shrravanpatankar772 жыл бұрын

    Amazing!!👏 I can really spend whole day watching videos on your channel..😄

  • @GungaLaGunga
    @GungaLaGungaАй бұрын

    What an excelent channel. Thanks!

  • @christophercarmody7094
    @christophercarmody70942 жыл бұрын

    Great channel, love it.

  • @th1ngo
    @th1ngo2 жыл бұрын

    Bzzzt. Plum pudding (along with hard sauce and fruit cake) is one of the reasons for life! Greetings from a Natural Philosopher in the Antipodes. Love your channel.

  • @johnpyott4014
    @johnpyott40145 жыл бұрын

    Thanks! That was terrific!

  • @Kathy_Loves_Physics

    @Kathy_Loves_Physics

    5 жыл бұрын

    So glad you liked it :)

  • @nancymisage2574
    @nancymisage25744 жыл бұрын

    Thank you for your videos. With public schools closed due to Coronavirus, your Channel is helping me "teach" the remaining topics to my students in a way that will hopefully spur their interest in both Physics and History.

  • @Kathy_Loves_Physics

    @Kathy_Loves_Physics

    4 жыл бұрын

    Glad to help. If you want to talk (teacher to teacher) feel free to email me (the link is in the About me section). Good luck

  • @shawnmulberry774
    @shawnmulberry7743 жыл бұрын

    7:44 1898 apparently was the year of the mustache.

  • @berulan8463
    @berulan84632 жыл бұрын

    Thank you for these great videos!

  • @Raphael_NYC
    @Raphael_NYC2 жыл бұрын

    Love,love,love your videos and they way you do them. Thank you. rapahel nyc

  • @dansmalley5415
    @dansmalley54152 жыл бұрын

    good, clear, and motivating history. Very good presentations. Thanks Greatly appreciated

  • @Kathy_Loves_Physics

    @Kathy_Loves_Physics

    2 жыл бұрын

    Glad you liked it

  • @factchecker9358
    @factchecker93582 жыл бұрын

    Another good one. It's great to see the chain of students coming from these labs to help fill out the connections.

  • @darkfox77
    @darkfox772 жыл бұрын

    Great video.

  • @yousufnazir8141
    @yousufnazir81412 жыл бұрын

    Very essential and helpful lecture for the students of physical sciences

  • @jamesdriscoll_tmp1515
    @jamesdriscoll_tmp15152 жыл бұрын

    Very well done. It would be cool to get the history of the mass spectrometer like this.

  • @navjotsingh6930
    @navjotsingh69302 жыл бұрын

    Amazing channel. Loved your content. And experimental details of setup and pictures. Cover all nobel prizes.

  • @TheRev0
    @TheRev02 жыл бұрын

    This video, and these videos in general, reignite my interest in studying electrical engineering

  • @predragpejovic611
    @predragpejovic611 Жыл бұрын

    Simply, GREAT!!!

  • @funkbo
    @funkbo2 жыл бұрын

    I fell in love with this channel 🥰

  • @LucasPinheiroV8
    @LucasPinheiroV82 жыл бұрын

    Excelent video! Thanks!

  • @shawnjones4000
    @shawnjones40002 жыл бұрын

    Superb!

  • @krisduboise276
    @krisduboise2762 жыл бұрын

    I really love these videos Kathy 😍

  • @jjson775
    @jjson775 Жыл бұрын

    excellent content

  • @bombadeer8231
    @bombadeer82312 жыл бұрын

    Nother great one Kathy 👍

  • @norsagon6215
    @norsagon6215 Жыл бұрын

    I am having so much fun watching your videos

  • @Kathy_Loves_Physics

    @Kathy_Loves_Physics

    Жыл бұрын

    I'm so glad!

  • @sherakhela4044
    @sherakhela40442 жыл бұрын

    Great knowledge. Thanks

  • @tigranavemian803
    @tigranavemian803 Жыл бұрын

    Great, very interesting!

  • @zack_120
    @zack_12010 ай бұрын

    JJ Thompson makes louder sounds in my mind for his work on electrons, the most famous, active subatomic particles 😁

  • @vaishnavisoni4106
    @vaishnavisoni4106 Жыл бұрын

    Thankyou mam very interesting journey of discovery of electron

  • @thehman2007
    @thehman20072 жыл бұрын

    What a great video. “Kathy does a great job explaining physics”.

  • @Kathy_Loves_Physics

    @Kathy_Loves_Physics

    2 жыл бұрын

    Aww thanks

  • @DickHoskins
    @DickHoskins7 ай бұрын

    Superb video. It is clear that you really know and understand this (and many others) topic. Thanks!

  • @erikmattsson3437
    @erikmattsson34372 жыл бұрын

    You are so good!

  • @MegaPraveenk
    @MegaPraveenk2 жыл бұрын

    Blend of history & science behind .....just great

  • @GaryCameron780
    @GaryCameron7802 жыл бұрын

    I always enjoy your videos. :)

  • @mr.bianco8519
    @mr.bianco85192 жыл бұрын

    Your a sweetheart. Keep up the good work.almost to 100k subs.good stuff

  • @sijimathew8888
    @sijimathew88883 жыл бұрын

    Great video!! loved it

  • @Kathy_Loves_Physics

    @Kathy_Loves_Physics

    3 жыл бұрын

    Glad you liked it! I love this story and need to make a better thumbnail I think.

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