Crooke's Tube & Electrons

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  • čas přidán 11. 07. 2024
  • How JJ Thomson used a Crooke's tube to discover the electron

Komentáře • 265

  • @ANILKUMAR-ic1ms
    @ANILKUMAR-ic1ms Před 5 lety +187

    while studying in college I had seen this apparatus in book and was always confused to imagine how it works and today saw cathode ray tube (& electron flow) demonstration live. Now I'm 37..wish we had got such a Good Teacher 😥

  • @jekaaai
    @jekaaai Před 4 lety +132

    Damn! That's literally a perfect teacher there! I've always wanted to be taught by someone who teaches well at the same time who doesn't make the class too boring 😭 perfect.

  • @sevvaltate2580
    @sevvaltate2580 Před 5 lety +511

    i'm a little bit jealous, i wish i'd have a teacher like that

  • @PaulsArena
    @PaulsArena Před 3 lety +384

    Meanwhile in India - Don't touch that vernier caliper, it's too dangerous to touch. You will probably cut your finger

    • @godisalive6685
      @godisalive6685 Před 3 lety +20

      Lol bro same with me. We have a various materials at our lab but they
      Always told not to go near them as you will broke it lol.

    • @abhirupabhowmik8112
      @abhirupabhowmik8112 Před 2 lety +2

      lmao true

    • @tarankirat8226
      @tarankirat8226 Před 2 lety +3

      No hmare to calliper 2 bar mam ne hi gira dia😂

    • @amolghadigaonkar2114
      @amolghadigaonkar2114 Před 2 lety +17

      If you are an Indian using the Word 'India' attached to something that is watched globally, be careful and fully aware of it's Use. Do NOT use that Word casually to generate a Forced Joke.Whatever we speak stays permanently on the Social Media. So use Words carefully.
      I am an Indian, having already completed my Masters in Computer Science. Now I am chasing Masters in Physics and nowhere had I an Experience where the Teachers were over-Cautious and hyper-panicked.
      Speak for yourselves and stick to your own personal Experience. Do not generalize it to a complete Nation.

    • @ronitjaiswal9180
      @ronitjaiswal9180 Před 2 lety +6

      In Our school they were not worried about our fingers instead they used to say - don't touch that vernier caliper or you'll break it and then you'll have to pay for it

  • @PB-ij4xt
    @PB-ij4xt Před 2 lety +17

    Always saw this in books....wondered how it actually worked...and- after soo many years, finally saw it. Thank you sooo much Sir .

  • @TH-ys9ux
    @TH-ys9ux Před 5 lety +366

    Our teacher read straight through the entire history of the atom in one class, and just told us to learn it🙃🙃🙃

  • @miacarter6715
    @miacarter6715 Před 3 lety +80

    Indian schools don't show any experiments. They just feed us theory. It is really hard to study that way. These students are very lucky, they get to see live experiments :)

    • @rishabhsharma472
      @rishabhsharma472 Před rokem +1

      true

    • @laya38
      @laya38 Před rokem +1

      Ohh yeah ..

    • @jocelyneavila6870
      @jocelyneavila6870 Před rokem +1

      Latinamerican schools have the same problem, unfortunately!

    • @rakhibepari
      @rakhibepari Před rokem +1

      Okay ,let's not combine the whole country to blame upon because exceptions are always there
      It could be the same in other countries as well .
      And I highly appreciate teachers who actually decide to make learning interesting irrespective of nationality,race, caste,religion,creed or gender

    • @stoic7836
      @stoic7836 Před rokem +1

      @@rakhibepari exception can't be an example I also respect those few teachers of the subcontinens who makes science interesting to the students but in most of the case most of the teacher there has intention to force students to memorize everything that's not how science that's not how education system works education should be enjoyable and should be experienced mostly in case of science thus the educational system of subcontinent should be changed they should focus on the experimental education system and they should stop force students to memorize everything without understanding it

  • @zeynepyuceer9096
    @zeynepyuceer9096 Před 6 lety +98

    such a cool teacher

  • @anushkajha6313
    @anushkajha6313 Před 2 lety +20

    While I was trying to understand this concept on how electrons were discovered, from the theory which was provided by my school teacher, I didn’t understand anything, really! But, when I saw you doing it practically, things were made more clear. So, a big big big big thanks to u

  • @MicahEZ
    @MicahEZ Před 6 lety +35

    Thank you for your passion in teaching and making it fun

  • @amalkannan4154
    @amalkannan4154 Před 3 lety +45

    Teacher in india- shows diagram, picture etc
    Meanwhile here - tries Tesla coil on himself to teach his students

    • @kineticballs77
      @kineticballs77 Před 2 lety +11

      That's why indian students are better in every way cause they learned it the hard way.

    • @suhanipatro9528
      @suhanipatro9528 Před 2 lety +2

      @@kineticballs77 Correct bro!

    • @seeratdahiya1758
      @seeratdahiya1758 Před 2 lety +9

      @@kineticballs77 sorry but that was not supposed to be a compliment
      indians students don't have much practical knowledge
      many situations are tough to understand with just theoretical knowledge
      whereas here people focus on practical knowledge more than theoretical one

    • @kineticballs77
      @kineticballs77 Před 2 lety

      @@seeratdahiya1758 as I said they got to learn everything the hard way, ergo they're better

    • @seeratdahiya1758
      @seeratdahiya1758 Před 2 lety +3

      @@kineticballs77 this has nothing to do with it
      what they leant was not even what was NEEDED there may be some good students who understand the things but indian's method is very bad for many students who can't understand without seeing the things themselves
      and what you are say may be true
      indians are better than foreigners in maths but there isn't any need to calculate when they got calculator
      they focus on finance and pratical maths while what we study is completely different

  • @GOVINDKUMAR-zh7ny
    @GOVINDKUMAR-zh7ny Před 3 lety +23

    I need this type of education🎓

  • @ayushigupta9643
    @ayushigupta9643 Před 2 lety +4

    you are a great teacher!!!!!! I also want a teacher like you who explain us practically like that

  • @balamuralikrishna8942
    @balamuralikrishna8942 Před 6 lety +46

    Great teaching! Thank you, teacher!

  • @joaovictordaconceicaosanto3340

    Beautiful class. Thanks for upload it on youtube!

  • @detaart
    @detaart Před 5 lety +19

    And what you can't see kids, are the X-rays, but i'm sure you won't have to worry about that lol.

  • @october_man
    @october_man Před 5 lety +6

    Nice way of teaching, Sir.

  • @anishatadkod1778
    @anishatadkod1778 Před 3 lety +3

    You made it crystal clear !
    Thank you

  • @ahmedrajpoot759
    @ahmedrajpoot759 Před rokem +3

    That's nice 🙂 you're really a great teacher.... I really want a teacher like you 🙂🙂

  • @baratavieira
    @baratavieira Před rokem

    That was truly amazing!

  • @shardindutiwari111
    @shardindutiwari111 Před 3 lety +1

    Such a great teacher 😊😊🙏🙏

  • @loveforkitten2721
    @loveforkitten2721 Před rokem

    Thanks for this amazing demonstration ❣️❣️❣️

  • @euphoria9239
    @euphoria9239 Před 4 lety +7

    The professor is great!

  • @xXDiver12Xx
    @xXDiver12Xx Před 5 měsíci

    This is AWESOME.

  • @John-wj4yf
    @John-wj4yf Před 11 měsíci

    great vid!

  • @nizamknr6495
    @nizamknr6495 Před 3 lety

    Great teacher.

  • @doodsravenlolo7173
    @doodsravenlolo7173 Před 3 lety +1

    Thank You Sir. Keep safe everyone. God Bless Us All Always.

  • @spaceshipastro
    @spaceshipastro Před 2 lety

    this is amazing

  • @pranetravyas1565
    @pranetravyas1565 Před 2 lety

    a very nice video !!!

  • @Lyrics_for_you975
    @Lyrics_for_you975 Před 2 lety

    I'd like to watch Ur next video Sir But I like your way to teach them ......it seemed like enjoyment you're doing well...🙃

  • @kganesh30
    @kganesh30 Před 4 lety

    Very nice explained I am glad of you

  • @Don_668
    @Don_668 Před 8 měsíci

    Good video 💯

  • @tehseenansari3835
    @tehseenansari3835 Před 2 lety

    Amazing 😍

  • @monstergaming8027
    @monstergaming8027 Před 5 lety

    Excellent

  • @aabbccdd1234eeff
    @aabbccdd1234eeff Před 2 lety +1

    I think he was jj Thompson in his previous life he explained that beautifully

  • @anshuaggarwal5784
    @anshuaggarwal5784 Před 2 lety

    Good explanation

  • @pradnyadesai1620
    @pradnyadesai1620 Před 3 lety +1

    So good, wish I had a teacher like that😔

  • @candycough4101
    @candycough4101 Před 3 lety +20

    Because of this pandamic,we can't go school and observe these amazing activities in our school:(

    • @shrutikumari5014
      @shrutikumari5014 Před 3 lety +3

      Your school does this types of experiments !!!!!!!!!??

    • @candycough4101
      @candycough4101 Před 3 lety +1

      @@shrutikumari5014Yess,every school does this experiments...

    • @goldenlegend7200
      @goldenlegend7200 Před 3 lety +4

      @@candycough4101 In your dreams

    • @candycough4101
      @candycough4101 Před 3 lety +1

      @@goldenlegend7200 you and your school go to hell...

    • @candycough4101
      @candycough4101 Před 3 lety

      @@goldenlegend7200 yess,your school must do these activities in your dreams,that's why your are asking from others!and must remember to be in your limit!!

  • @vanshikamalik2069
    @vanshikamalik2069 Před 2 lety

    And here I was wasting my time in reading the same topic again and again and trying to understand how electrons were discovered.....
    We need a teacher like him

  • @osamamagdy3035
    @osamamagdy3035 Před 3 lety

    Amazing

  • @theroaster2282
    @theroaster2282 Před 2 lety +1

    guys he's not a school teaches he's a professor in a college be proud of ur teachers our teachers in India teach us foreign college level chemistry.....my teacher also showed me cathode Ray tube in the lab....if u also want to see just ask ur teacher to show u from the lab :)

    • @thegoah2
      @thegoah2 Před 2 lety

      I’m glad your experience in India has been good. I’m very ignorant of educational practices in India. I’m not a professor though. The students in this video are 15 year olds, many of whom didn’t go to college after high school.

  • @khansaboo2030
    @khansaboo2030 Před 2 lety

    THANK YOU SO MUCH SIR

  • @shehanmax8749
    @shehanmax8749 Před 4 lety +1

    I have a question, what if I send cathode Ray's through DNA or RNA???

  • @douglasstrother6584
    @douglasstrother6584 Před 2 lety

    Gas discharge phenomena, the discovery of the electron, etc. sowed the seeds of modern physics.

  • @Tabbu_12370
    @Tabbu_12370 Před 3 lety +4

    I think our country has burning need of education system like this.

    • @sahanag2841
      @sahanag2841 Před 2 lety

      Already had.. Not every where.... But may be it take some decades to spread all over

  • @internaldragon118
    @internaldragon118 Před 3 lety

    I have never seen a teacher like him he the cool teacher in my world

  • @4Ntertainment
    @4Ntertainment Před 3 lety

    VERY nice 😀😀😀👌

  • @sedu7357
    @sedu7357 Před 2 lety +1

    Thank you
    ඔබට ස්තුතියි ගුරුතුමනි

  • @pradeepkumar7737
    @pradeepkumar7737 Před 3 lety

    Great sir

  • @Photo_doctor
    @Photo_doctor Před 3 lety +7

    We need teachers like him, guys who still teach us in the perfect way when pur pre-school teachers told us 🤍👏🏼

  • @tiredironrepair
    @tiredironrepair Před 2 lety

    Why is the light in the Crooks tube green?

  • @roywimar
    @roywimar Před rokem

    Thanks a lot

  • @sheebav4869
    @sheebav4869 Před 4 lety +1

    Was he humming a Kesha song In between?

  • @YinNYang_Official
    @YinNYang_Official Před 4 lety +2

    If you ever see him again tell him he’s famous

  • @Photo_doctor
    @Photo_doctor Před 3 lety +2

    I want this guy to be my chemistry teacher. He's cool 👌

  • @chemistry3007
    @chemistry3007 Před rokem

    Hi sir from where we can bay these apparatus.

  • @simanr9368
    @simanr9368 Před 3 lety

    Ke$ha, can you believe this he's singin' a Ke$ha song. Why isn't my teacher this cool?

  • @shehanmax8749
    @shehanmax8749 Před 4 lety

    Nice teacher

  • @libenkithan162
    @libenkithan162 Před 2 lety

    Woowww very good

  • @creativetech6450
    @creativetech6450 Před 4 lety

    Why you connect only one terminal to a electrode

  • @pragatimishra4410
    @pragatimishra4410 Před 3 lety

    sir nice explained

  • @chrisstrait9944
    @chrisstrait9944 Před 6 lety +6

    The BD 10 wand that he claims to be a tesla coil is actually a device based on an oudin coil and does not have spinning magnets inside of it. Had it been a tesla coil it still would not have had any moving parts inside.

    • @lancemgy
      @lancemgy Před 4 lety

      Exactly. The buzzing sound is the mechanical interrupter that pulses the current to a little Tesla (Oudin) coil and out comes high frequency high voltage. Otherwise, great presentation!

    • @uploadJ
      @uploadJ Před 2 lety

      re: "and does not have spinning magnets inside of it."
      Do you know what a motor is, how it operates? A motor is used inside the 'wand' to drive the mechanical interrupter at a very high rate ...

    • @chrisstrait9944
      @chrisstrait9944 Před 2 lety +1

      @@uploadJ Yes I am very aware of what a motor is. That is irrelevant because this device does not contain one. I personally own and have worked on multiple of these. There are zero moving parts, the sound it makes is when the electricity arcs across the spark gap preventing the user from making direct contact with the AC source it is plugged into.

  • @indianchhori6145
    @indianchhori6145 Před 2 lety +1

    O god. I was really wanna this experiment. But so sad there is no sources in my school 🏫. But yeah when I watched this video I'm very happy 😊.

  • @UKWALALADKA
    @UKWALALADKA Před 2 lety

    Thanki sir love from india

  • @mrgrizzly9034
    @mrgrizzly9034 Před 3 lety +3

    When he says- oooeeoeeeoeee oee WHY WHY WHY WHY!! OYEOOOEOE 😂😂🤣🤣

  • @candycough4101
    @candycough4101 Před 3 lety

    Who is the singing this strange music?

  • @sajanhnp3479
    @sajanhnp3479 Před 4 lety +10

    Where's anode and cathode connection with high voltage

  • @sirijanthakur
    @sirijanthakur Před 2 lety

    i wish if i had such practical explanations in my school lol

  • @jevsdisjava
    @jevsdisjava Před 2 lety

    so they new about electricity and have some way to generate courant before even discovering the electron ?

  • @eleggance
    @eleggance Před 4 lety +4

    Can you explain how electron beam is being generated in the tube by Tesla Coil if there is no potential difference between cathode and anode in the tube??

    • @srsa2436
      @srsa2436 Před 4 lety +3

      eleggance The Tesla coil generates a high potential . The electrode near the coil has a high potential and the one far is at approx 0 potential . So the electrons flow .

    • @KK-pq6lu
      @KK-pq6lu Před 2 lety +1

      The other end of the Crookes should have been grounded for best effect. He is relying on the leakage of the current through the wood stand and into the air. That is why the green beam is not that sharp and also has a vertical line where the glass standoff is in the middle - the electrons are leaking down the glass standoff and into wood stand. BTW - safety tip, keep that Tesla coil away from those gas jets.

  • @raggedybritches5798
    @raggedybritches5798 Před rokem

    This guy's vocal pitch is on point @2:40

  • @tsionalemayehu-vp2ot
    @tsionalemayehu-vp2ot Před rokem

    A real teacher

  • @WSNO
    @WSNO Před 2 lety

    thanks

  • @lifealie-ve8sg
    @lifealie-ve8sg Před 3 lety

    W Crook discovered Cathod rays and named them electron.

  • @marthiapo
    @marthiapo Před 6 lety +15

    hoca baya iyiymiş bea :))

    • @safaduman
      @safaduman Před 5 lety

      Harbiden. Adam işini yaparken baya eğleniyo

    • @mrhonneynive
      @mrhonneynive Před 4 lety

      Herkes anot katot, şöyle böyle zıplar falan diye anlatıyor. Bir bu amcada anladım.

  • @jyoti_kumari36
    @jyoti_kumari36 Před rokem +1

    Thankyou sir

  • @abhyudaysingh3911
    @abhyudaysingh3911 Před 4 lety

    Sir why this green light is only looking

  • @mast_duniya
    @mast_duniya Před rokem

    How many voltage are required?

  • @articulate5797
    @articulate5797 Před 2 lety

    Thankyou

  • @armaanmalhotra9042
    @armaanmalhotra9042 Před rokem +1

    🔥🔥🔥

  • @H.o.b.e
    @H.o.b.e Před rokem

    So sad that we dont have one ..And any Experiments on our lap..

  • @heloiza_af
    @heloiza_af Před 3 lety

    Thomson é um gênio mesmo cacete imagina pensar nisso

  • @findingmyself2446
    @findingmyself2446 Před 3 lety +1

    I wish that I had a teacher like him :) ...such a fun and interactive class it was :) .... India needs teacher like him who can demonstrate the practical approach to all the stuff written in the textbooks

  • @edtisbyaqsa
    @edtisbyaqsa Před 3 lety

    It is effecting the magnetic because it has no electricity and when you are passing electricity from instrument it effects

  • @indhumathikarthikeyan2938

    I WISH I COULD BE THE STUDENT IN HIS CLASS !! 🙃

  • @kafamagore5215
    @kafamagore5215 Před 6 lety +1

    Waovv super

  • @M22Editszz
    @M22Editszz Před 2 lety

    Watching dec.2021

  • @educationalschool1215
    @educationalschool1215 Před 3 lety +1

    Best teacher in the world
    😃😃😃😃
    Everyone need such teacher

  • @abiellaelf
    @abiellaelf Před 6 lety

    thank you1\!

  • @fatima_nadeem
    @fatima_nadeem Před 4 lety

    👍👍👍

  • @vihangavimukthi4884
    @vihangavimukthi4884 Před 4 lety

    wow

  • @nabishaikh4265
    @nabishaikh4265 Před rokem

    Which is product use ..please share me product used name this ...is

    • @LHSAtkins
      @LHSAtkins  Před rokem

      If you Google “high frequency generator” you’ll see the voltage source. And then I have a crooke’s tube with a screen inside and a neodymium magnet.

  • @salihasalam8518
    @salihasalam8518 Před 5 lety +4

    What is the relation between pressure of gass inside the tube and the applied voltage???plz help if anyone has idae...😢😢

    • @october_man
      @october_man Před 5 lety +4

      Saliha Salam If the pressure is high( due to larger number of gas molecules) we’d have to apply a high voltage. But if a few molecules of gas are to be escaped pressure will be low and we’d have to apply a relatively less amount of voltage in order to observe the phenomena... (by lowering the pressure means the number of gas molecules present are lower and thus for less molecules less amount of voltage will be enough)

    • @salihasalam8518
      @salihasalam8518 Před 5 lety +1

      @@october_man thanks alot broo

    • @internetuser9279
      @internetuser9279 Před 3 lety

      @@october_man But how did the current even flow through without the circuit being complete?

    • @october_man
      @october_man Před 3 lety +1

      @@internetuser9279 This tube is not acting like a typical load. Here the main thing to observe is the passage of electrons from one electrode to another and this phenomenon doesn't need current to flow back to its source unlike other loads
      Hope this will help:)

    • @internetuser9279
      @internetuser9279 Před 3 lety

      @@october_man Yes, it did and thanks for answering. And btw potential difference does exist right? For the electrons to flow?

  • @donut4185
    @donut4185 Před rokem +1

  • @rajnichaturvedi3125
    @rajnichaturvedi3125 Před 5 lety

    It is negative rays

  • @tarankirat8226
    @tarankirat8226 Před 2 lety +1

    2:41 in India its substituted by naagin tune

  • @conorquinlan9444
    @conorquinlan9444 Před 3 lety +8

    “It’s following the magnet.”
    “HEAIGHHH?

  • @Arjun-pi2iq
    @Arjun-pi2iq Před 2 lety

    That's how science should be taught.

  • @madihafatima7564
    @madihafatima7564 Před 2 lety

    Woooww🔥🔥🔥🔥

  • @goddessofkratos2ndchannel995

    I think that was a wonderful teaching thing to do. If we all were given such coolness in elementary we'd be a much more advanced species. On that note, may i open your mind professor to explore a different perspective. Your science was correct until the light from battery vs tube.