Thanks, Kathy! Your videos are so educational and engaging! I guessed that you had taught physics for some time before starting your video series. So, I Googled you, and found that you've taught both high school and university physics. Your students must love your classes! I really like your historical approach to teaching physics. It allows the learner to follow the path of discovery, and to see how each subsequent breakthrough occurred.
Thank YOU madam, for YOUR lessons AND a glimpse of HISTORY, that is the icing on the cake. ONCE again, I THANK YOU for the piece of human "ACHIEVEMENTS" you are showing ALL. "WE the people" HOPE to deserve the HISTORY. VERY glad that I discovered this channel. Respect, FROM India.
As you know, your an excellent teacher. Thank you. If I may, your presentation, your enthusiasm, your vibe although invisible, can be felt registered and therefore its concluded, that your electromagnetic radiance, during your presentation, draws in people of all walks of life and not necessarily fans of physics but your energy harmonize perfectly with a natural perfect logic, thereby elegant and sweet, in open arms.
In reading Faraday’s notes, Article 9 at 3:10, it is so interesting to me his humility; I only hope I present myself in a similar fashion, he’s very inspirational. I should like to find an anthology of his written work, I think it would make for very good reading. I can easily see how he made such notable contacts, I can only imagine what a pleasure it must have been to work and correspond with such a gentleman. It is amazing to me he came up with the theory of a magnetic field surrounding a current carrying conductor, especially given the trouble I had conceptualizing the various fields in college Physics - and those had already been discovered and/or theorized! It’s a huge mental leap to theorize something as such from scratch, all from primitive experimentation and outstanding deduction. He’d been quite the fellow to have a cup of coffee with. As before, thank you for sharing your love of Physics and history, Kathy.
I've been enjoing many of your vidoes (all those I've seen). I do have a question of fact about one item in this video. Wasn't the first telegraph the Cooke & Wheatsone system?
On e I get my lab up and running after a move, I’ll try it - but - what happens if you wrap a current carrying wire around, say, a bar of aluminum rather than steel (or cobalt, nickel). I know eddy currents get generated, but will it concentrate the magnetic field lines and will it attract ferromagnetic materials?
When you really think about it, the quote, "Advanced-enough technology is indistinguishable from magic" is actually not quite right. Electromagnetism IS magic, as far as the basic definition is concerned! "Magic" has its only difference in having the person doing it have some sort of direct or indirect control of the actions of some object, including living things, or summoning up some being that has such ability that will do its thing when the magic-user requires it (forced, bribed, or payed-for). "Electro-magnetism" as a source of energy and controlled force is different only in that it has a physical form that can be built-into objects using manufacturing techniques similar to those of a blacksmith (taking the proper rock and extracting the iron and then mixing it with heat and other materials in the correct way to strengthen the final object, such as a sword, for some purpose). Once known, anyone with the knowledge, resources, and enough skill (and usually assistance in a group project) can create the device that performs the "magical" activity. And the things electro-magnetism can do or are involved with in our world are magic as far as their huge variation, including chemistry, biology, power generating, power directing, communications, computation, and so forth,. ad infinitum. There is NO difference between electro-magnetism and magic as far as the possible results are concerned, just more repeatable, down-to-earth rules governing these created results...
another great video of yours. I m just an interested layman. I watched a video that showed : because the electrons flow with the speed of light Einsteins theory of relativity comes into place by the electrons gaining more mass and are producing therefore more magnetic attraction as anticipated, and what does this to time because if time slows down the speed slows down too ? Explanation ? I don t get it ?
wow thanks for mentioning Samuel Morse's racist egotism, it helps to contextualize historical figures in all their glory and sin, I wish historians would do this more
I was enjoying this series until you called Samuel Morse a "Racist Egoist" . Where do you get off judging people who lived in another time by calling them present day idioms? You lost all credibility with me in that statement. You have no right passing judgement on someone who lived in another place and time! Unless you were there and knew all the circumstances on which you base your judgement, you have no right to pass judgement. Keep your opinions to yourself!
Having a theme song that just repeats the same word over and over at the beginning and end of your video is extremely annoying. It's not a cute song, it just gets stuck in your head, and so I will not be watching your channel, even though it was good otherwise. I'm not exposing myself to that kind of psychological warfare that tries to force things into my mind by repeating them over and over.
