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
5:37 ... that's not even close to 1/3 of the speed of light. Did you mean per second?
@Kathy_Loves_Physics
2 жыл бұрын
Yes I did. Slip of the tongue
@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
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
2 жыл бұрын
@@Kathy_Loves_Physics oh, that's a shame. Anyway, clarify in the description perhaps.
@Kathy_Loves_Physics
2 жыл бұрын
Good idea. Will do
Kathy makes science and history come alive. I would loved to have been in her classes.
I'm hooked! Yours may be the history channel for electrical nerds.
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!
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.
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!
Find the explanations great, what makes it special is you also go into why, how, and what motivated the inventors. Awesome.
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.
With all due respect to JJ Thomson, I'm just glad we ultimately choose electrons over corpuscles.
@2lefThumbs
2 жыл бұрын
Corpuscle is ok, "corpsjcle" sounds like a zombie treat"
@physicsAmbler
2 жыл бұрын
And even better than “corpsucles”!
@djmips
2 жыл бұрын
Agree? But we should have adopted his current flow direction. XD
@shawnmulberry774
2 жыл бұрын
@@djmips Absoolutely, current flow is so unnecessarily confusing.
@lawrencedoliveiro9104
2 жыл бұрын
I thought Newton used the term “corpuscle”, too, only this was for the particles of light.
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
5 жыл бұрын
proudsnowtiger sorry I shouldn’t insult plum pudding without trying it first!
@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
2 жыл бұрын
@@Kathy_Loves_Physics make sure you cover it with brandy sauce (syrup) first!
Dear Cathy, You are so wonderful! You possess the vitality and focus to bring dusty sheafs of scientific tracts to LIFE!
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.
Kathy i love u, glad u came back. Loved the Thompson story.
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.
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 🤣
Your videos always make me happy! I love to hear the stories of how it happened and who did what.
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
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.
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.
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!😁
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.....
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
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.
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!
These are the best videos ever. Love the history and characters in them. Thank you Kathy!
I'm subscribed, and now I'm spending all day watching your videos.
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
Kathy....you're awesome! Thanks!
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.
Love your videos Kathy! Thanks little sister. You rock!!
Congrats to Kathy. Your Videos are fun to whatch and listen to.
Love your channel. Interesting and informative. Often watch more than once to grasp all the ideas.
@Kathy_Loves_Physics
5 жыл бұрын
Hope that is a good thing and not a bad thing (watching twice).
@simonmasters3295
Жыл бұрын
I love your videos
Its from your channel that I get many of my doubts cleared....I'm really happy. You really owe more ....
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
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
5 жыл бұрын
Jack, I got a new video out!
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.
I enjoy the story behind the discovery; the putting together the various puzzle oieces and other's contributions.
Loved the history. Thanks Kathy.!
Kathy, even if i freeze to death (and become a corpsicle), I'm always gonna love your videos! ❤️
@Kathy_Loves_Physics
2 жыл бұрын
Aww you turned my mispronunciation into a compliment. Thank you. 😍
@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 💘
love it, very cool and fun to learn when you are presenting the information.
Thank you for making these videos so interesting and informative.
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!
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.
I do love your classes. Thank you very much.
That was amazing. Comprehensive and to the point. Lady, you deserve a million subscribers. Keep up the good work.
@Kathy_Loves_Physics
3 жыл бұрын
Thank you! 😊
Thank you for posting and sharing!
I really enjoy watching your videos a second time when it pops up in my KZread feed .
Wonderful history lesson about the electron, thanks
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
2 жыл бұрын
Thank you 😊
Exciting and informative. Thanks Kathy.
9:18 love the quick review on the “dessert”
In a word, important and elegant (both the video and JJ's work).
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
2 жыл бұрын
Ha! Maybe I was unconsciously honoring him.
Wow, just totally amazing...! Love it...
Bravo! An amazing video. Filled in the blanks too!
Another great video Kathy.
I cannot find the right superlatives for your videos. I’m going to watch every one of them.
I really could spend all day watching your videos.
I felt an element of authenticity from your communication. Well explained dear.
Very well made videos! Superb content and great presentation!
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!
you explained this sooo well and i thank you for that because i have a test after tomorrow
Excellent video
Thank you for teaching me an old man wanting to learn about electronics you are such a good teacher
these videos are fantastic!
Best channel explaining about electron! Thanks
Awesome job
Amazing!!👏 I can really spend whole day watching videos on your channel..😄
What an excelent channel. Thanks!
Great channel, love it.
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.
Thanks! That was terrific!
@Kathy_Loves_Physics
5 жыл бұрын
So glad you liked it :)
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
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
7:44 1898 apparently was the year of the mustache.
Thank you for these great videos!
Love,love,love your videos and they way you do them. Thank you. rapahel nyc
good, clear, and motivating history. Very good presentations. Thanks Greatly appreciated
@Kathy_Loves_Physics
2 жыл бұрын
Glad you liked it
Another good one. It's great to see the chain of students coming from these labs to help fill out the connections.
Great video.
Very essential and helpful lecture for the students of physical sciences
Very well done. It would be cool to get the history of the mass spectrometer like this.
Amazing channel. Loved your content. And experimental details of setup and pictures. Cover all nobel prizes.
This video, and these videos in general, reignite my interest in studying electrical engineering
Simply, GREAT!!!
I fell in love with this channel 🥰
Excelent video! Thanks!
Superb!
I really love these videos Kathy 😍
excellent content
Nother great one Kathy 👍
I am having so much fun watching your videos
@Kathy_Loves_Physics
Жыл бұрын
I'm so glad!
Great knowledge. Thanks
Great, very interesting!
JJ Thompson makes louder sounds in my mind for his work on electrons, the most famous, active subatomic particles 😁
Thankyou mam very interesting journey of discovery of electron
What a great video. “Kathy does a great job explaining physics”.
@Kathy_Loves_Physics
2 жыл бұрын
Aww thanks
Superb video. It is clear that you really know and understand this (and many others) topic. Thanks!
You are so good!
Blend of history & science behind .....just great
I always enjoy your videos. :)
Your a sweetheart. Keep up the good work.almost to 100k subs.good stuff
Great video!! loved it
@Kathy_Loves_Physics
3 жыл бұрын
Glad you liked it! I love this story and need to make a better thumbnail I think.