How Does a Tesla Coil Work? A Historical Deep Dive

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Kathy Loves Physics & History

Kathy Loves Physics & History

Күн бұрын

How does a Tesla coil work? Take a wild journey through time from the invention of the electromagnet, through a shocked Irish priest and the discovery of radio waves to Tesla's dramatic displays! Check it out!
Timeline:
1800 Volta invents the battery: • How Volta Invented the...
1820 Oersted discovers that current creates a magnetic force: • Oersted's Experiment: ...
1826: Sturgeon creates the electromagnet: • How an Electromagnet W...
1831: Faraday discovers induction: • How Faraday Made Elect...
1836: Reverend Callan shocks himself with coils
1853 Fizau added a Leyden jar to the circuit
1866: Hertz used induction coils to create Radio waves: • How Heinrich Hertz Dis...
1889: Tesla heard of Hertz's waves
1891: Tesla patented his Tesla coil
Acknowledgments:
The lovely modern tesla coil movie comes with permission from Greg at hotstreamer.deanostoybox.com/g... He has some great advice if you are crazy enough to try to make some of these machines yourself.
The Tesla photographs are modified from: en.wikipedia.org/wiki/Nikola_...
The schematic of the tesla coil was modified from: commons.wikimedia.org/wiki/Fi...
And, as usual, the music is from the lovely and talented Kim Nalley

Пікірлер: 280
@jwingo7257
@jwingo7257 3 жыл бұрын
You have a gift at combining the historical perspective with the science and make it both entertaining and educational. Love your content! Keep it up!
@MoveMakerTV
@MoveMakerTV 2 жыл бұрын
I completely agree!!!!
@connorfisher1651
@connorfisher1651 3 жыл бұрын
Tesla was using impulses waveforms; not a.c; as the input to his magnifying transmitter. The torroid placed atop his tower was not used to ionize the atmosphere which only creates coronal discharge, but rather was utilized in order to reflect the uni-directional impulses into the earth. Tesla stated clearly that these impulses were pressure waves; not transverse electromagnetic waves, and by using these pressure waves he could then set up a grid across the earths surface which he could utilize to transmit electricity from his transmitter to the various resonant recivers which would be placed on above mentioned nodal points. If you understand the skin effect in relation to high voltage aplications, cymatics, and can comprehend that the interior of the earth was used as a component in his circuit then this concept will make a great deal of sense. Marconi simply ripped off teslas patents, and borrowed ideas from hertz and others in order to create a half baked form of radio that wasnt useful as a means of communication until r.c.a came around, and developed the amplifiers and vacuum tubes that actually made radio practicle and engineerable. The analogy of a tank circuit is useful in regards to analyzing the basic function of a tesla transmitter. That being said you have missed some very key components that lead to an understanding of tesla's ingenious and heavily supressed system of wirless electrical transmission.
@David-sp7gc
@David-sp7gc Ай бұрын
Tesla had poor math skills and did understand the inverse square law. This is why high power can’t be transmitted very far.
@larryniidji
@larryniidji 2 жыл бұрын
Marconi not only use Tesla technology but Tesla also used radio to control his submarine 11 years before Marconi's transmission.
@RichardFreeberg
@RichardFreeberg Жыл бұрын
Great presentation! Thanks Kathy! I wish that such content had been available when I was growing up back in the 50 and 60's. In particular your including the historical and human drama of the development of science is sooooo important! And you're doing it while accurately presenting the science. Marvelous.
@nastynate534
@nastynate534 3 жыл бұрын
And we love Kathy! P.S.- just found your channel, but you’re stuff is exactly what I was looking for. Keep up the excellent work, ma’am. This is the level of dedication, education, presentation, etc. people truly appreciate (and yes most people don’t realize it, but keep on the grind and hopefully some comments/patrons will give you some validation in the meantime)
@nigelradcliffe7613
@nigelradcliffe7613 2 жыл бұрын
Wish I’d had you when doing electronics. You simplify it so much. Thank you
@AJMjazz
@AJMjazz 2 жыл бұрын
Your videos are excellent, Kathy. You provide enough theory, math, and history to make all of it logical and easy to grasp. Long time electronic tech and ham operator here, this has provided me with hours of refresher info and entertainments. Kudos!
@SimonSozzi7258
@SimonSozzi7258 3 жыл бұрын
I Freaking Love this Channel!
@Kathy_Loves_Physics
@Kathy_Loves_Physics 3 жыл бұрын
Simon, I am thoroughly enjoying watching all your comments as you binge watch my videos. Glad you like them and thanks for commenting so much.
@shelliecarlson7015
@shelliecarlson7015 2 жыл бұрын
It's because of Kathy's enthusiasm. She, obviously loves electricity, and it becomes infectious. If I had Kathy as a teacher, I would have paid attention instead of learning it later in life.
@robertakerman3570
@robertakerman3570 2 жыл бұрын
@@Kathy_Loves_Physics A friend Did make a T.Coil(cool). I owned several cars that ran on both "interruptors & excitors". Lastly; I'm not sure if "back then" it may have been the shape of the coil, but in modern times physical shape /size doesn't matter. Time is wonderful (usually).
@peterjeffery8254
@peterjeffery8254 2 жыл бұрын
I already know most of this but your delivery reminds me of how special it is. I was smiling the whole way through. Thank you Kathy.
@CharlieSolis
@CharlieSolis 2 жыл бұрын
Whoa whoa whoa… the torus on the top of the Tesla coil is meant to STOP discharges from arcing off so that it can be brought to much higher voltages, Not encourage the arcs. If one just wanted to encourage arcs you could just stick the pointy wire end of the secondary coil up into the air, like a lightning rod. The torus serves the same purpose of his lightning protector patent. As well as the half circles on the top of the magnifying transmitter Patent. A Tesla coil/magnifying transmitter is NEVER supposed to arc off the top. One of the first things my E&M teacher from getting my physics degree told us when he first started talking about Tesla to us. This is what everyone gets wrong. And Tesla explicitly says this in the patents too. Anyone who shows you a Tesla coil with it just sparking off at the top is just trying to bombastically impress you, not actually put the transmitter to utility.
@CharlieSolis
@CharlieSolis 2 жыл бұрын
He even supplies component V in the magnifying transmitter patent as a “pressure relief” if the case should ever happen by accident. “The accident is apt to occur when, the transmitting circuit being strongly excited, the impressed oscillations upon it are caused, in any manner more or less sudden, to be more rapid than the free oscillations. It is therefore advisable to begin the adjustments with feeble and somewhat slower impressed oscillations, strengthening and quickening them gradually, until the apparatus has been brought under perfect control. To increase the safety, I provide on a convenient place, preferably on terminal D, one or more elements or plates either of somewhat smaller radius of curvature or protruding more or less beyond the others (in which case they may be of larger radius of curvature) so that, should the pressure rise to a value, beyond which it is not desired to go, the powerful discharge may dart out there and lose itself harmlessly in the air. Such a plate, performing a function similar to that of a safety valve on a high pressure reservoir, is indicated at V.”
@CharlieSolis
@CharlieSolis 2 жыл бұрын
Tesla was not dumping the signal into the air and infact says this happens at great loss. The “antenna” or secondary circuit is not only connected to the terminal in the air. It’s it’s also grounded at its base to be able to use the earth. The point of the transmitter is to dump the power into the ground for transmission not the air into hertzian waves. Never mind the fact that just like the SOFAR channel deep in the ocean that traps low frequent acoustic signals into planar dispersion patterns with power decreasing at a rate of only 1/R, instead of spherical dispersion with a power decrease of 1/R^2, there are “whispering gallery” resonances of the atmosphere, starting just off the surface off the earth going all the way up to the ionosphere. These resonant wave guides around the earth allow for power transmission with a far lower rate of power loss over distance. This is proven stuff and the military has been using these channels for submarine warfare techniques for over 100 years.
@CharlieSolis
@CharlieSolis 2 жыл бұрын
From the magnifying transmitter patent In endeavoring to adapt currents or discharges of very high tension to various valuable uses, as the distribution of energy through wires from central plants to distant places of consumption, or the transmission of powerful disturbances to great distances, through the natural or non-artificial media. I have encountered difficulties in confining considerable amounts of electricity to the conductors and preventing its leakage over their supports, or its escape into the ambient air, which always takes place when the electric surface density reaches a certain value. The intensity of the effect of a transmitting circuit with a free or elevated terminal is proportionate to the quantity of electricity displaced, which is determined by the product of the capacity of the circuit, the pressure, and the frequency of the currents employed. To produce an electrical movement of the required magnitude it is desirable to charge the terminal as highly as possible, for while a great quantity of electricity may also be displaced by a large capacity charged to low pressure, there are disadvantages met with in many cases when the former is made too large. The chief of these are due to the fact that an increase of the capacity entails a lowering of the frequency of the impulses or discharges and a diminution of the energy of vibration. This will be understood when it is borne in mind, that a circuit with a large capacity behaves as a slackspring, whereas one with a small capacity acts like a stiff spring, vibrating more vigorously. Therefore, in order to attain the highest possible frequency, which for certain purposes is advantageous and, apart from that, to develop the greatest energy in such a transmitting circuit, I employ a terminal of relatively small capacity, which I charge to as high a pressure as practicable. To accomplish this result I have found it imperative to so construct the elevated conductor, that its outer surface, on which the electrical charge chiefly accumulates, has itself a large radius of curvature, or is composed of separate elements which, irrespective of their own radius of curvature, are arranged in close proximity to each other and so, that the outside ideal surface enveloping them is of a large radius. Evidently, the smaller the radius of curvature the greater, for a given electric displacement, will be the surface-density and, consequently, the lower the limiting pressure to which the terminal may be charged without electricity escaping into the air. Such a terminal I secure to an insulating support entering more or less into its interior, and I likewise connect the circuit to it inside or, generally, at points where the electric density is small. This plan of constructing and supporting a highly charged conductor I have found to be of great practical importance, and it may be usefully applied in many ways.
@CharlieSolis
@CharlieSolis 2 жыл бұрын
The top dome/charge collector is very much analogous to the air piston in the oscillator patent. It’s a capacitor to bounce off of. Any loss of electricity to the air would be a complete waste in the system, dampen the oscillation not to mention would ruin the desirable polished surfaces of the charged top that are precisely for the explicit purpose of eliminating discharges into the air. Again refer to the lightning protector patent. It’s one of my favorites because everyone completely underestimated it if not get it completely wrong. Most think it’s just another novel lightning rod to “collect” lightning strikes. Buts it’s not it does the exact opposite. It’s a curved umbrella dome to eliminate lightning strikes. As well I love that patent because he “hides” SOO much of his geo electrical physics in that patent. It’s ALWAYS overlooked but plays such a critical role to so many of his larger global system ideas.
@CharlieSolis
@CharlieSolis 2 жыл бұрын
And please don’t tell me that it doesn’t work because everyone said that about his turbine and I’m making them work just fine. Just clocked 2.75kW and 6.22ft-lbs of torque at 4150rpm with just compressed air alone. People just don’t understand the fine details that contribute to the efficacy of the system. As I said above, everyone likes to scream bloody murder about “BUT POWER DROPS WITH A RATE OF 1/R^2!!! IT CAN’T WORK OVER ANY DISTANCE!!”… which is true if you make a tiny one, but to that I still say, so does acoustic sound waves. Yet somehow whales can communicate around the entire world with each other even though they cannot possibly produce a sound loud enough in free apace underwater to travel around the world. I would also suggest looking up project Mogal as it shines light on much of why the government kept these whispering gallery wave guide channels in and around the earth under wraps at the time… plot twist… it was for the sake of national security….. go figure. And before any questions it, yes, I do have a degree in physics already.
@timothystockman7533
@timothystockman7533 3 жыл бұрын
When I was in Jr. High, I built a Tesla coil. The primary was several turns of #14 magnet wire on an oatmeal container, andhe secondary was many turns of #22 magnet wire on a yard long cardboard tube from a fabric store. Instead of a spark gap generator, my coil was energized by continuous waves from a pair of transmitting triodes. I got a nice spark discharge from the top of the coil.
@Kathy_Loves_Physics
@Kathy_Loves_Physics 2 жыл бұрын
That is amazing and very brave of you
@therongertz3570
@therongertz3570 2 жыл бұрын
Excellent videos! Just found you recently, and have loved everything so far
@stevea2909
@stevea2909 2 жыл бұрын
I went through an electrical apprenticeship and I learned new things from every one of your videos, Thank you!
@dahawk8574
@dahawk8574 5 жыл бұрын
6:41 - A good addition would be a quick explanation why this is called a "tank circuit". In physics, there is the 'SHO', Simple Harmonic Oscillator, which can be a mass on a spring that bounces back & forth. In designing electrical circuits, water analogies are often used, and this kind of oscillation can be observed in a tank of water where the water sloshes back & forth. So a "tank circuit".
@Kathy_Loves_Physics
@Kathy_Loves_Physics 5 жыл бұрын
I just noticed this comment Da Hawk. I didn't know why it was called a tank circuit, that is very cool. I mention how tank circuits work in a bunch of my radio videos but never why they were called that (as you just taught me). Thanks, K
@dahawk8574
@dahawk8574 5 жыл бұрын
For everything you've taught me, I figured I owed you one! Even the math behind harmonic oscillation is fascinating. Sine waves are just circles, from a different perspective. This .gif explains it in 2 minutes: en.wikipedia.org/wiki/File:Sine_and_Cosine_fundamental_relationship_to_Circle_(and_Helix).gif I remember the day when I was sitting in class and this realization dawned on me. That was a great day.
@Kathy_Loves_Physics
@Kathy_Loves_Physics 5 жыл бұрын
Da Hawk I had heard that one before and agree it is super cool. As a physics gal who has never taken a EE course I just learned how tank circuits work like last year so I am waay behind on engineering. But I’m working on it.
@dahawk8574
@dahawk8574 5 жыл бұрын
As a tangent... It was about that same time for me in school when I had a class where my teacher explained to us how army tanks got to be called 'tanks'. It was a cover story for these newfangled things that they were a way to get water to the infantry troops. "Tanks of water". And this name from the cover story stuck. There's a history to absolutely everything around us. It's just that the vast majority of the stories are forgotten.
@Kathy_Loves_Physics
@Kathy_Loves_Physics 5 жыл бұрын
Da Hawk ok I actually gasped. I love that stuff.
@zachreyhelmberger894
@zachreyhelmberger894 2 жыл бұрын
Another way to explain the Leyden jar and coil circuit (aka a tank circuit) is to think in terms of energy storage. Electrical energy in the form of an electric field is present in the fully charged capacitor. When a coil with a large number of turns is connected to the capacitor, one would expect an instantaneous large blast of current and a spark like with a short piece of wire. But what actually happens is that the current rises in the coil much more slowly because of Faraday's law of induction. As the electrical energy of the capacitor is being transferred to the magnetic field of the coil, a "back EMF" is induced in the coil that opposes the change in coil current. Thus the coils slows down the transfer of electrostatic energy to magnetic energy. At some point the coil current reaches a maximum and and then the magnetic field starts to collapse inducing a coil voltage in the opposite direction and charging the capacitor back up again but in the opposite direction. Once the magnetic energy in the coil is fully discharged into the capacitor's electric field, the current starts flowing in the opposite direction as the capacitor discharges itself back into the inductor again. Finally, the after coil has charged up with magnetic energy and discharged it again to the capacitor, the capacitor is back to it's original polarity and voltage sans a certain amount of energy lost to electromagnetic field emission and heat due to resistance and other losses.
@MrElapid
@MrElapid 3 ай бұрын
Correct!
@susilgunaratne4267
@susilgunaratne4267 2 жыл бұрын
Beautifully presented as usual with energetically & convincingly.
@flagmichael
@flagmichael 2 жыл бұрын
There are a couple of "by the ways" in the description of operation of the Tesla coil. Unlike most air core transformers a TC has the majority of the secondary uncoupled from the primary; typically the primary is about a fifth or so the length of the secondary and is generally loosely coupled. A variation of the Tesla coil, known as an Oudin coil, is an autotransformer with the same working principles. Most of the extreme voltage rise comes from the effect we see in resonant antennas: peak currents at the feedpoint and peak voltages at the open end(s), but in Tesla coils the goal is not to radiate energy but to cause the standing waves to pump as much of the energy as possible into the end of the coil. The voltage rise is almost entirely outside the coupled section.
@vinquinn
@vinquinn Жыл бұрын
Good to her you call it an Oudin coil. Most people have never heard of this and mistakenly call them all Tesla coils.
@michaelfoster8929
@michaelfoster8929 Жыл бұрын
What an amazing presentation / video - well done
@aminnima6145
@aminnima6145 Жыл бұрын
I can't have enough of your awesome videos
@huangchao5164
@huangchao5164 5 жыл бұрын
exellent description of old stories, the principles of devices are so nature and clear for understanding! thanks!
@Kathy_Loves_Physics
@Kathy_Loves_Physics 5 жыл бұрын
Glad you liked it and even more glad that it made sense to you.
@kennethfuller3618
@kennethfuller3618 11 ай бұрын
I have read and watched several explanations of the Tesla Coil and, until this video, walked away just as ignorant of its workings as I was before. This video has to best explanation ever .
@dewiz9596
@dewiz9596 2 жыл бұрын
Delightfully educational. Presentations like this make me realize I’m still not too old to learn!
@zachreyhelmberger894
@zachreyhelmberger894 2 жыл бұрын
It is important to note in the Tesla coil schematic shown in the video that ONLY the capacitor and the primary coil of the air-core "Tesla coil" is involved in generating radio frequency, RF, energy that excites the RF secondary of the Tesla coil. The only job of the secondary of the iron-core transformer is to charge up the capacitor to a voltage high enough to jump the spark gap which then discharges the electrostatic energy in the capacitor into the few turns of very heavy wire of the primary coil to create a very intense magnetic pulse which then charges the capacitor back up with the opposite polarity as the magnetic field collapses back into the primary of the Tesla coil, etc. The "size" of the capacitor and the "size" of the inductor determine the frequency of the sinusoidal oscillating current in the tank circuit.
@Darthvanger
@Darthvanger 2 жыл бұрын
The best explanation ever, I understood it! :) Simply combining a few experimental results \ machines we end up with this scheme and it even seems simple enough. Everyone is trying to explain it with the theory and the laws, only to make it more complicated to comprehend. Kathy one love ❤ You're making physics great again!
@ronaldhenderson8660
@ronaldhenderson8660 Жыл бұрын
I join those who love your info and delivery. Thank you
@colekeircom
@colekeircom 5 жыл бұрын
Thank you Kathy. Very well explained in a concise and no nonsense manner . Anybody who feels they need more detailed information can use this as a starting point . Regards Kieron
@Kathy_Loves_Physics
@Kathy_Loves_Physics 5 жыл бұрын
So glad you liked it Kieron feel free to share
@2Steps2D
@2Steps2D 6 жыл бұрын
Great and interesting content. Keep it up!
@scfrhc9131
@scfrhc9131 3 күн бұрын
Your discussion is very interesting and intense but I’m afraid that I will have to listen to it many many more times and probably transcribe it before I can even understand it enough to ask you a sensible question…notwithstanding thanks!
@paulmiles1065
@paulmiles1065 2 жыл бұрын
One of my all time favorite channels!
@ryandodson919
@ryandodson919 2 жыл бұрын
Thank you for making this. Its very well put together and clearly explains Tesla Coils and the science behind them. I use this video for training volunteers at the science museum I work at for our Tesla Coil shows.
@Kathy_Loves_Physics
@Kathy_Loves_Physics 2 жыл бұрын
That makes me so happy.
@tgs2012
@tgs2012 3 жыл бұрын
Great presentation Kathy! Thank you.
@Kathy_Loves_Physics
@Kathy_Loves_Physics 3 жыл бұрын
Glad you enjoyed it!
@kamatchinmay
@kamatchinmay 2 жыл бұрын
Why didn't KZfaq recommend this channel sooner. The content here is amazing
@MrDuran9000
@MrDuran9000 5 жыл бұрын
WOW, I think your great. Made people think! Quick and to the point. Wish you great success and thanks for sharing knowledge.
@Kathy_Loves_Physics
@Kathy_Loves_Physics 5 жыл бұрын
MrDuran9000 glad you liked it. Feel free to share with friends and enemies 😉
@Sunspot1225.
@Sunspot1225. 10 ай бұрын
Physics class in college would have been almost redundant except for the mathematics involved. I understand your presentation and it is enjoyable. I have a playlist with all of your shows.
@PinkeySuavo
@PinkeySuavo 3 жыл бұрын
I came across on one of your videos before but I didn't open it. Now I did and I don't regret. Interesting history! I saw a 3-hours documentary about history of electricity but clearly it missed a lot of points, and this video filled a lot of gaps out there. Thanks!
@Kathy_Loves_Physics
@Kathy_Loves_Physics 3 жыл бұрын
Welcome aboard!
@h-h1859
@h-h1859 2 жыл бұрын
Thanks for the video.super interesting and informative. Im always facinated by history of science and humble beginings .🙏❤️
@paknbagn9917
@paknbagn9917 2 ай бұрын
really good video and explained easily
@zubershaikh7663
@zubershaikh7663 Жыл бұрын
I like you video and i always interested in how things firstly happened.. thanks for ur video.
@Scriptank
@Scriptank 2 жыл бұрын
This as absolutely awesome and so informative! Thank you.
@halweilbrenner9926
@halweilbrenner9926 2 жыл бұрын
So clearly explained. Was able to follow without mind overload & brain shut down. So well done!
@Kathy_Loves_Physics
@Kathy_Loves_Physics 2 жыл бұрын
So glad
@peterbonucci9661
@peterbonucci9661 2 жыл бұрын
This is the best description of how a Tesla coil works that I have seen. Thanks.
@rolandmousaa3110
@rolandmousaa3110 2 жыл бұрын
Thanks for the SC ED.. Keep up the Good Work! (inventor)
@hank1519
@hank1519 5 жыл бұрын
Beautiful video! Thank you!
@martinhaub2602
@martinhaub2602 2 жыл бұрын
This is the best, clearest explanation of how a Tesla Coil works I've ever seen! Thanks for doing it.
@car9167
@car9167 2 жыл бұрын
not really...
@sayedhassanphysics8491
@sayedhassanphysics8491 3 жыл бұрын
Great and interesting content. Keep it up ❤️👍 Beautiful video Thank you .......
@GriffinGBrock
@GriffinGBrock Жыл бұрын
Some points of interest for your consideration: 11:10 "ionization of air" Rather than employing the term free electrons to describe the discharge emanating from the capacitive torus of such a setup, it is truly the action and strain of the connecting electric field lines which in due cause a discharge in the surrounding air. Granted that the modern day Tesla Coil, one of high impedance, high loss, and little use for radio telecommunications, possesses a donut shaped top load, this gives a nonuniform potential gradient surrounding the torus. The sides of this shape pose to increase the electric field gradient and number of lines of force per square centimeter, causing the dielectric strain of the surrounding air to breakdown, as the quantity of electric lines of force increase with respect to terminal potential. Hence, a discharge occurs. For this reason, Tesla speaks of employing spherical top capacities, as a sphere provides the most uniform field line distribution, preventing stray discharges to some extent. 11:25 "Wardenclyffe to electrify the globe" Despite the lack of a functional setup in the end at Long Island, it is to say without doubt in retrospect, that Tesla seemed to be mainly concerned with toying with experimentation, rather than simply constructing a functional setup. After returning from Colorado Springs, where a respectful amount of data was collected on the effective transmission of telluric communication, something seemed to have went askew, as his latter patent on Wardenclyffe would stray away from an efficient coil setup. His three coil magnifying transmitter arrangement developed at Colorado Springs had maximized transmission efficiency, by constraint coil geometry of stout form. The opposite of which is seen in the Wardenclyffe patent. For this reason, many believe that the modern day Tesla Coil of elongated proportions is in fact the finalized and perfected transmission apparatus which Tesla had developed. The latter of which is falsehood, whereby Colorado Springs appears to be the correct avenue of conducted research to approach.
@dougdoug2165
@dougdoug2165 2 жыл бұрын
Great one, again. Tying up the loose ends in the understanding of electricity. The historical perspective really cements the tying up process. Thank you, wish you would have been around 40 years ago. Kids: pay attention to this.
@jamesslick4790
@jamesslick4790 2 жыл бұрын
I just discovered your channel, And YOU and "Technology Connections" make learning about the ROOTS of tech SO damn FUN and EDUCATIONAL. I have been into ANYTHING electrical (and mechanical) since I was a kid in the 1970s, And even if there is stuff that I knew, both of your channels brought the "deep dive" I have wanted FOREVER. I am NOT a "fan" of a lot of what KZfaq does (to content creators...or viewers) BUT, The access for "regular folk" to a (let's face it..) television platform make me glad that "cable" is dying. I never EVER got the likes of this even on the (over hyped) vaunted PBS. This RIGHT HERE is "Educational TV" as it SHOULD BE. 👍😊👍 PS watching on a PC connected to a projector to a 120" screen. WE LIVE IN THE FUTURE!
@lordbeebus9842
@lordbeebus9842 2 жыл бұрын
Great work!
@mikepasko7493
@mikepasko7493 2 жыл бұрын
Great explanation
@finallyy3959
@finallyy3959 4 жыл бұрын
Mam Iam from India. I really loved u r exploitation
@Kathy_Loves_Physics
@Kathy_Loves_Physics 4 жыл бұрын
ananthula shiva so glad you liked it. Hope my California accent wasn’t too difficult to understand. Cheers
@racookster
@racookster 2 жыл бұрын
Very nicely explained!
@neko7787
@neko7787 2 жыл бұрын
Thx for the clear explanation... 💚
@pramitchaudhury1821
@pramitchaudhury1821 2 жыл бұрын
In love with your content ❤️❤️
@pixelking8706
@pixelking8706 Жыл бұрын
This'll be great for my project! 😃😁
@PuwadejP
@PuwadejP 4 жыл бұрын
Thank you so much for your great work.
@Kathy_Loves_Physics
@Kathy_Loves_Physics 4 жыл бұрын
You are quite welcome.
@techmyo916
@techmyo916 5 жыл бұрын
Thanks for the valuable information ♥️
@Kathy_Loves_Physics
@Kathy_Loves_Physics 5 жыл бұрын
Glad you liked it
@gabrielhacecosas
@gabrielhacecosas Жыл бұрын
What an excellent explanation. I've recently discovered your channel and I think it's great. 11:04 It is better to put the spark gap in parallel with the transformer and the capacitor in series with the primary coil. As you have it in the video, you run the risk of the high frequency getting into the transformer and burning it out.
@lancegreathouse9623
@lancegreathouse9623 4 жыл бұрын
Good info!
@almegdadkhalid5522
@almegdadkhalid5522 2 жыл бұрын
What a great lesson. Thank you a lot.
@OnlyTheParanoidSurvive444
@OnlyTheParanoidSurvive444 3 жыл бұрын
This was great!
@binsojoy90
@binsojoy90 4 жыл бұрын
nice job
@twistedyogert
@twistedyogert 4 жыл бұрын
4:23 They were also called "trembler coils". Early cars used these devices to fire the spark plugs.
@Kathy_Loves_Physics
@Kathy_Loves_Physics 4 жыл бұрын
I knew that they are used in spark plugs but I didn't know that they are called "trembler coils" what a cool name!
@WJV9
@WJV9 2 жыл бұрын
The vacuum tube radios in automobiles used vibrator coils to produce high plate voltage for vacuum tubes from the 12 volt DC battery. You could always hear a hum of the vibrator when you turned on the radio.
@wisdomovermoney3394
@wisdomovermoney3394 3 ай бұрын
That intro is dope
@dirkpitt5468
@dirkpitt5468 2 жыл бұрын
Awesome sauce!
@tiagoperes1631
@tiagoperes1631 2 жыл бұрын
I found that one!!! Hahaha 🤣 I’m in love with your content!!!! 🥰 Thank you again!!
@chainsik3817
@chainsik3817 21 күн бұрын
Buen video, me hará salvar el semestre!
@olivergouveia9915
@olivergouveia9915 4 жыл бұрын
LOVED IT! Very interesting
@Kathy_Loves_Physics
@Kathy_Loves_Physics 4 жыл бұрын
Oliver Gouveia so glad
@gregorycotter6461
@gregorycotter6461 2 жыл бұрын
Great video.
@sunnyray7819
@sunnyray7819 2 жыл бұрын
Very interesting, I never knew about the tank circuit. I heard about it a while back but forgot to be honest.. I just kinda know enough to be dangerous.. But, now I understand how the Telsa coil really works. Thanks for the great explanation!
@margidim1472
@margidim1472 2 жыл бұрын
It will be very interesting to learn about the history of semiconductor and full conductor's electricals or electronics 🙂
@cogentdynamics
@cogentdynamics 3 жыл бұрын
What a great presentation!
@Kathy_Loves_Physics
@Kathy_Loves_Physics 3 жыл бұрын
Glad you liked it!
@hubercats
@hubercats 2 жыл бұрын
Another excellent video!
@whatsappvideosandgifs4315
@whatsappvideosandgifs4315 3 жыл бұрын
nice video, clearly explained
@Kathy_Loves_Physics
@Kathy_Loves_Physics 3 жыл бұрын
Glad you liked it
@futureboy7653
@futureboy7653 2 жыл бұрын
@ 3:45 : "CATARRH" Now that's an ailment
@diplomatutorial3256
@diplomatutorial3256 4 жыл бұрын
really this video was very enlightening for me
@Kathy_Loves_Physics
@Kathy_Loves_Physics 4 жыл бұрын
I am so glad. Really, it makes me smile to read positive comments and helps me through the mean and nasty ones.
@laskartrece
@laskartrece 2 жыл бұрын
Some people love you. You induce affection don't know how...? thank you... You give science a heart and a purpose.
@redminote5pro399
@redminote5pro399 2 жыл бұрын
Subscribed 👍
@alistairmcmeekin5382
@alistairmcmeekin5382 Жыл бұрын
Excellent
@accessiblenow
@accessiblenow 2 жыл бұрын
Another good one
@mostafaismail43
@mostafaismail43 2 жыл бұрын
Amazing video
@Kathy_Loves_Physics
@Kathy_Loves_Physics 2 жыл бұрын
Thanks
@tanner1985
@tanner1985 2 ай бұрын
I appreciated the fact that every time a name was to be given, it wasn't the name I supposed :D Oersted, Ruhmkorff... neither one I guessed right! Thanks to this I have info to search more and again, to have a better picture. Thanks! The downside of this videos is, despite being well informative, it failed to point out HOW the high voltage in the topload is reached. It is *NOT* just by induction. It's because of the loose coupling between the primary over the secondary, the secondary itself being a single wire transmission line with a lenght sufficient to sport transmission line properties, and resonant rise in the 1/4 wavelenght... The question "How does a Tesla coil Work" can't be answered without the loose coupling, dear physicist.
@ollieoniel
@ollieoniel 2 жыл бұрын
if you use resonance. If you run the circuit through a differential equation. There is a thing where the oscillation causes the wave to get bigger and bigger with just the right input frequency. This is an extra design feature tesla intended to use the coil to create massive changing voltage fields.
@climbeverest
@climbeverest 2 жыл бұрын
Please also do 30 minutes or more, you have such talent and such deep knowledge, we want to know history of physics, especially voltaire’s girlfriend, I forget the name was incredible engrossing
@eloycastillo4191
@eloycastillo4191 3 ай бұрын
Can you talk about darzoval currents....and how make scalar phenomenon?
@mieldeabeja6453
@mieldeabeja6453 Жыл бұрын
Gracias
@debeshbhattarai
@debeshbhattarai 2 жыл бұрын
Love it, Tried making one...looks a bit difficult feat though. Keep inspiring.
@zachreyhelmberger894
@zachreyhelmberger894 2 жыл бұрын
Let me know what you are doing. I have built a number of Tesla coils in the past. I might be able to walk you through the construction process.
@debeshbhattarai
@debeshbhattarai 2 жыл бұрын
@@zachreyhelmberger894 Most of the videos in KZfaq seems to be baseless, it rarely works. I am more intersted to get it simple by having limited electronics here...say merely by controlling turns in Primary and secondary. And may be basic assembly for on off switch in a very primitive way...as they used to do 150 years back...MORE LIKE A BARE SCIENCE...!!
@debeshbhattarai
@debeshbhattarai 2 жыл бұрын
May be you shall add a line or post the details in video soon. I got make one DIY Tesla soon. Cheers Mate. Also a line about me for your Info, myself an architect, musician, DIY enthusiast and Exercise Guru. Cheers...!!
@gristlevonraben
@gristlevonraben 5 жыл бұрын
great video!
@Kathy_Loves_Physics
@Kathy_Loves_Physics 5 жыл бұрын
so glad you liked it
@MaleAdaptor
@MaleAdaptor 5 жыл бұрын
Excellent video but @11:30, you do not have Tesla's vision. Other's think differently search fo "zenneck surface wave" and corrolate that with Warden Clyff.
@braaitongs
@braaitongs Жыл бұрын
What about the importance of the spark gap? Ie disruptive discharge? And also what about the radiant energy produced by his tesla resonant transformer?
@robertmoskowitz3101
@robertmoskowitz3101 2 жыл бұрын
In Jr. High, our 9th grade science teacher had a monster Tesla coil. Primary was 5 turns of 1/2" copper tubing. Secondary was 5,000 turns of #10 copper wire. This was hooked up to an oil capacitor bank able to put out 10KV. Yes, a 10MV spark, but a very low current. I walked up to it, put my hand into it... Fun!
@BBQDad463
@BBQDad463 2 жыл бұрын
Thank you for this video and for all your videos. Keep on rockin'! It has always been my belief that the letter to be transmitted by Marconi was "S," and that the letter as well as the date and time of transmission had been predetermined and agreed upon by Marconi and his assistant in America. So... "I plan to transmit the letter "S" at a precise date and time." "I will be ready and will watch closely at the precise date and time, oh man who signs my paycheck." "Did you receive the letter "S" at the preordained date and time?" "Yes, I did, exactly as you said I should, at the precise date and time, oh man who signs my paycheck." Or does the historical record truly say otherwise?
@frostfamily5321
@frostfamily5321 2 жыл бұрын
I hope you get to make a video about laser keyboards and the science behind them!
@briangenge2649
@briangenge2649 4 жыл бұрын
Excellent - lucid and scintillating!
@Kathy_Loves_Physics
@Kathy_Loves_Physics 4 жыл бұрын
Brian Genge so glad you liked it
@boone7777777777
@boone7777777777 Жыл бұрын
I love this video, makes me want to try to build a tesla coil
@danielmusat597
@danielmusat597 2 жыл бұрын
Hi Cathy! Just a small correction: capacitors do not store energy in the plates (as most electrical engineers will tell you) but in the dielectric between the plates (be it material or vacuum).
@zachreyhelmberger894
@zachreyhelmberger894 2 жыл бұрын
It is kind of both, I think. The positive plate will have a deficiency of electrons and the negative plate will have an excess of electrons. These net charges create an electric field that is the most intense between the plates. The dielectric in between the plates can reduce the intensity of the electric field in between the plates by electrostatic induction in the atoms or molecules of the dielectric. The greater the dielectric constant, the lower the intensity of the electric field (or voltage per unit distance) for a given differential of charge between the positive and negative plate. This allows more charge to be transferred from one plate to the other before the voltage gets too high and dielectric breaks down and a spark ensues or the charge finds another route from one plate to the other typically in a rather dramatic fashion. Similarly, a conductor with and electric current passing through it creates a magnetic field, which is also a form of energy storage. When the current stops, the magnetic field "collapses" into the conductor and causes the current to flow in the opposite direction.
@Darthvanger
@Darthvanger 9 ай бұрын
Can you do a video on why magnetism is a relativistic effect of electricity, and how it all works? And with history of discovery ofc :)
@climbeverest
@climbeverest 2 жыл бұрын
Madam you know so much, I want to get back to vector calculus and start learning physics like I am in Newton’s time do you have book recco for this?
@rahulpagidimarri4677
@rahulpagidimarri4677 4 жыл бұрын
Good information madam
@Kathy_Loves_Physics
@Kathy_Loves_Physics 4 жыл бұрын
Glad you liked it
@coffeeisgood102
@coffeeisgood102 2 жыл бұрын
If I keep watching your channel I’m going to have to get a bigger brain to store all this knowledge.
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