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 😥
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.
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
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.
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 :)
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
@@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
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
@@Jatramain 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
@@Jatramain 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
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 :)
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.
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
@@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!!
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.
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!
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 ...
@@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.
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
Why don't we have schooling systems like these in pakistan!!! Believe me we'll enjoy to study like others right now it's just a disgusting burden for us 😬😬😬
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??
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 .
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.
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.
In india , scientists aren’t given respect by teachers Instead we are taught like ‘’ there was a guy , J.J. Thompson...JEY.JEY THHOPSON ; I hope you learnt that . Now he came and discovered the electron ( remember it , it can be asked in exam ) ‘’ Sad reality 😕
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)
@@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:)
Yes. The electron beam is hitting a phosphorescent screen. The phosphorescent screen is coated in, I think, zinc sulfide. This compound absorbs energy from the electrons and then radiates it back. The color it is able to radiate back has to do with the energy of the available molecular orbitals. This is similar to how things like “neon lights” work.
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 😥
i'm a little bit jealous, i wish i'd have a teacher like that
I also wish
@@educationalschool1215 me too
Ya.. Me to
NO bro !! Everyone loves their teachers , if yoy say like that. You probably insult you teachers
Me too
Meanwhile in India - Don't touch that vernier caliper, it's too dangerous to touch. You will probably cut your finger
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.
lmao true
No hmare to calliper 2 bar mam ne hi gira dia😂
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.
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
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.
hello i am from india
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 :)
true
Ohh yeah ..
Latinamerican schools have the same problem, unfortunately!
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
@@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
Always saw this in books....wondered how it actually worked...and- after soo many years, finally saw it. Thank you sooo much Sir .
Our teacher read straight through the entire history of the atom in one class, and just told us to learn it🙃🙃🙃
SAME
Happened today to me too! And then proceeded to do electricity in magnetism in the space of an hour! O_O
I think only Curious and enthusiastic teacher should deserve to teach Science
Same here
U from?
such a cool teacher
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
Thank you for your passion in teaching and making it fun
Teacher in india- shows diagram, picture etc
Meanwhile here - tries Tesla coil on himself to teach his students
That's why indian students are better in every way cause they learned it the hard way.
@@Jatramain Correct bro!
@@Jatramain 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
@@seeratdahiya1758 as I said they got to learn everything the hard way, ergo they're better
@@Jatramain 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
I need this type of education🎓
Great teaching! Thank you, teacher!
Telugu! :)
And what you can't see kids, are the X-rays, but i'm sure you won't have to worry about that lol.
you are a great teacher!!!!!! I also want a teacher like you who explain us practically like that
That's nice 🙂 you're really a great teacher.... I really want a teacher like you 🙂🙂
Best teacher in the world
😃😃😃😃
Everyone need such teacher
Nice way of teaching, Sir.
Beautiful class. Thanks for upload it on youtube!
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 :)
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.
The professor is great!
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
You made it crystal clear !
Thank you
We need teachers like him, guys who still teach us in the perfect way when pur pre-school teachers told us 🤍👏🏼
I think he was jj Thompson in his previous life he explained that beautifully
I think our country has burning need of education system like this.
Already had.. Not every where.... But may be it take some decades to spread all over
Because of this pandamic,we can't go school and observe these amazing activities in our school:(
Your school does this types of experiments !!!!!!!!!??
@@shrutikumari5014Yess,every school does this experiments...
@@candycough4101 In your dreams
@@goldenlegend7200 you and your school go to hell...
@@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!!
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.
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!
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 ...
@@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.
Thank You Sir. Keep safe everyone. God Bless Us All Always.
Gas discharge phenomena, the discovery of the electron, etc. sowed the seeds of modern physics.
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
We already have many!
“It’s following the magnet.”
“HEAIGHHH?
Such a great teacher 😊😊🙏🙏
Thanks for this amazing demonstration ❣️❣️❣️
When he says- oooeeoeeeoeee oee WHY WHY WHY WHY!! OYEOOOEOE 😂😂🤣🤣
Ke$ha, can you believe this he's singin' a Ke$ha song. Why isn't my teacher this cool?
Thank you
ඔබට ස්තුතියි ගුරුතුමනි
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 😊.
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...🙃
Where's anode and cathode connection with high voltage
If you ever see him again tell him he’s famous
Indian education system should learn something from this video 🙂...I love my country but ..you know ........
This is AWESOME.
I want this guy to be my chemistry teacher. He's cool 👌
That was truly amazing!
Why don't we have schooling systems like these in pakistan!!! Believe me we'll enjoy to study like others right now it's just a disgusting burden for us 😬😬😬
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??
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 .
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.
So good, wish I had a teacher like that😔
I have never seen a teacher like him he the cool teacher in my world
hoca baya iyiymiş bea :))
Harbiden. Adam işini yaparken baya eğleniyo
Herkes anot katot, şöyle böyle zıplar falan diye anlatıyor. Bir bu amcada anladım.
It is effecting the magnetic because it has no electricity and when you are passing electricity from instrument it effects
Great teacher.
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.
th-cam.com/video/X-1s-cZ2lBg/w-d-xo.html
I have a question, what if I send cathode Ray's through DNA or RNA???
Very nice explained I am glad of you
In india , scientists aren’t given respect by teachers
Instead we are taught like ‘’ there was a guy , J.J. Thompson...JEY.JEY THHOPSON ; I hope you learnt that . Now he came and discovered the electron ( remember it , it can be asked in exam ) ‘’
Sad reality 😕
So sad that we dont have one ..And any Experiments on our lap..
i wish if i had such practical explanations in my school lol
This is difference between foreign they tell through experiment
I WISH I COULD BE THE STUDENT IN HIS CLASS !! 🙃
this is amazing
W Crook discovered Cathod rays and named them electron.
Good explanation
THANK YOU SO MUCH SIR
Good video 💯
2:41 in India its substituted by naagin tune
so they new about electricity and have some way to generate courant before even discovering the electron ?
Was he humming a Kesha song In between?
First time seeing actually
a very nice video !!!
Not sure why he says it but Tesla coils do not have spinning magnets. Look it up.
Thanki sir love from india
Thankyou sir
That Tesla coil must be trashing every RF receiver in the county.
This video alone of 6 min can expose the education system of india
A real teacher
That's how science should be taught.
Amazing 😍
What is the relation between pressure of gass inside the tube and the applied voltage???plz help if anyone has idae...😢😢
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)
@@october_man thanks alot broo
@@october_man But how did the current even flow through without the circuit being complete?
@@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:)
@@october_man Yes, it did and thanks for answering. And btw potential difference does exist right? For the electrons to flow?
sir nice explained
MAN HE'S SO GOOD I WISH THE EDUCATION SYSTEM OF PAKISTAN WAS LIKE THAT TOO :(
Why is the light in the Crooks tube green?
Amazing
VERY nice 😀😀😀👌
Thanks a lot
Excellent
Great sir
Why you connect only one terminal to a electrode
Sir why this green light is only looking
ZnS-green colour
Did you quit using feeder at the age of 18? I had to ask this by looking at your mouth and singing.
Nice teacher
CAN I KNOW WHY THAT RAY IS GREEN IN COLOR? NOT SOME OTHER COLOUR,
Yes. The electron beam is hitting a phosphorescent screen. The phosphorescent screen is coated in, I think, zinc sulfide. This compound absorbs energy from the electrons and then radiates it back. The color it is able to radiate back has to do with the energy of the available molecular orbitals. This is similar to how things like “neon lights” work.
It is negative rays
thanks
🔥🔥🔥
I laughed why the class didn't?
Who is the singing this strange music?
Hi sir from where we can bay these apparatus.