The Discovery of the Electron (Chemistry & Physics) - [1-2-4]
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- เผยแพร่เมื่อ 28 ก.ย. 2024
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Twitter: / jasongibsonmath
In this lesson, you will learn how the electron was discovered. We will learn what a cathode ray tube and how applying a voltage across a low pressure gas in the tube produces a glowing beam that was initially called cathode rays. It was discovered that this is really electrons which can be manipulated with external magnets and electric fields. In this way, early scientists could calculate the relative mass of an electron along with the charge on the electron. Now with quantum mechanics we know that electrons also have properties of waves in addition to their particle properties.
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Personally I'm always skeptical of lessons on white boards compared to animations, but you break it down better than some others have done with animations lol I'm really surprised.
Thanks teacher. I am learning more and more about physics. I thought it would be harder but with the help of great teacher like you it makes things more motivating. I am graduating in physics next year and teaching poor kids from public school in the northeast of brazil. Thanks so much for being part of my learning.👏👏✍️✍️
Pls can I get a mean to reach you I need more help in maths and physics pls
@@greatemmanuel8051 buy his courses its a major help
Teaching while learning is a great experience. Keep it up.
Amazing foundational information!!!!! So well presented!!!
Nice explaination
Great job👍🏻👍🏻
I love this channel!
Superb. Thanks a lot.
Ty, ty
Congrats on a million subs. My dad both me your dvd way back in 2008 to help me with my Maths.
Thank you so much!
Outstanding. Keep it up!
Thanks man.
Great class...
did the anode have holes?
Thank you for all your help!!!
Need a study mate that can assist through maths and physics.can u pls
LOVE YOUR CONTENT
Thanks so much!
Nice 👍
Thank you!
Sooner or later, NASA will see these tutorials and re-hire our Jason to work for them, probably as a scientist for the moon or Mars mission, then we won't get any further new tutorials! man, i will feel sad then😭
Thanks so much! When I left NASA, it was my own choice and we definitely left on good terms. I left so that I could focus on this, and so this is where all my focus is and will be for the foreseeable future. Thanks again and good luck in your studies! Jason
Electricity is the move of electric loads, NOT electrons. It is also immaterial.
Can u assist me with maths and physics teaching?
@@greatemmanuel8051 I'm not a teacher. Having knowledge is not enough to teach.
@@greatemmanuel8051 if in United States a lot of physics is taught badly to millions of people, it doesn't make sense for me, alone, to come from another system to teach it well.
@@valentinchiriac9117 well I’m not from united state..I’m a Nigerian..physics is taught poorly here
@@valentinchiriac9117 ok
Indeed, inside a CRT you have a jet of electrons. The interesting fact is inside the vacuum of the CRT, this jet of electrons DO NOT emit light. Also inside of a "microwave" oven (which functions also with a jet of electrons), they DO NOT emit light.
Why?
@@ThomasThomas-be4sn Because their energetic level does not lower. Thus, no quantum of energy is emitted.
I thought cathode was positive and anode was negative
I so wish this guy had been my physics teacher in high school. He definitely dives into the "how and the why" in such a way that makes it interesting, and builds good foundations for the next levels of study.
You are toooo right with this guy
Outstanding presentation. I especially appreciated the bit about heat being electrons in higher energy levels. I believed it, but most explanations just talk about the atoms vibrating which I feel is a completely inadequate. I was also wondering if there are different ways that light can be emitted, or is it only when an electron moves to a lower energy level? This certainly would account for the quantum nature of light. Thank you!
This is one of the most beautiful explanations ever. My father was a physics professor at college. I miss having him talk science. With all respect, all the viewers / students are blessed with your knowledge & teaching experience!
I am also a new subscriber.
Jason, this is a great video lesson! The TH-cam channel "Kathy Loves Physics" may very well have a video on the history of the discovery of the electron. All of Kathy's videos are on the history of the Scientists & Engineers making their discoveries (I think all on electricity) along with how they did their experiments.
"teach I don't know how much to thank you"?
For some of us CRT tvs are still modern technology
When I was a kid and I turned the TV off there was a build up of something on the screen. It only lasted a few seconds but I could run my hand across it and it would crackle. I think it may have been a static charge but it didn't shock. This was CRT.
Or, there were certain people who knew what an electron was long before 1909 but they needed a way to explain it to the scientists of the day in a way those scientists would understand it with their 1909 technological.
Really enjoyed it sir thanks once again ☺️
Great great great lecture. Thank your very much. Mr. Gibson! I am always motivated watching every your videos. I believe lots of people are. It is inspirational too for any one who came cross to watch it. One big question as you leave the video open at the end. If electron exist under wave for, how can it have mass? Is it because of its duality? It has mass when it exists under particle form, and no mass when it is under wave form.
Thank you so much. These are excellent questions and the truth is we don’t know all of the answers to these questions. There’s so much that I’ve left unsaid and There will need to be a complete course in quantum mechanics to even get a little closer into understanding the wave nature of the electron. One big hint I can give you a stop trying to think of duality is it a particle or is it a wave? It’s actually something else that we don’t interact with and see on a daily basis but has properties of both. It’s something you’ve never really seen before and that’s why it’s confusing to us. As to why has mass, mass it’s just a resistance to a force the resistance to motion, and the modern theories say that mass arises because of particles interact with the Higgs field which is another field that we don’t see with your eyes.
@@MathAndScience Thanks for giving a hint. It turns out that I was misled. Science is amazing. I am fascinated having absorbed your knowledge and your reasonings. You are such a great teacher; knowledgeable, kind, humble, and inspirational. ❤ I can't wait to see your next videos.
Thank you very much , Sir!
THANK YOU... SIR...!!!
2:15am6/1/2453
Wouldn't 1.602 × 10^-19 C be the charge of one Proton? Because there are 6.24 × 10^18 individual electrons in a Coulomb. A Coulomb per second is expressed as an Amp.
Nevermind, I answered my own question.
I guess I'm assuming that if you took one 1 electron out of coulomb it would have an individual charge of 1.60218 × 10^-19 C?
Having difficulty in downloading most of your full videos especially on calculus,pls is there am mean you can make it available..it afford the price for buying access to must of the course
Maan...this guy, what a hero!! This was some truly awesome explaining. WANT MORE, WANT MORE😅
Thank you!
Oh no, no. I, THANK YOU!
Hi Jason, are you currently creating a entire new course on introduction to physics and chemistry? When will it be ready?
I am filming a lot of things concurrently. This lesson is from the new "chemistry course" which is more comprehensive that the tutor series I made years ago. There is also separately a new physics course series which is the same idea. When will they be ready, as in fully "done"? Probably a few years. But I am filming and releasing every week. I release some to TH-cam as usual, but have the full lessons posted on MathAndScience.com. Thank you! Jason
@@MathAndScienceappreciate it sir
I think the cause of light is due to electrons. What makes the electrons to move on themselves? May be due to their high charge to mass ratio.
It is due to electrons, but definitely not because of their movement.
@@valentinchiriac9117 when an electron falls from higher energy level to lower energy level,it gives off its energy in the form light.
@@hemarajue2736 Very possible. According to what I know about physics.