This is why youtube is the greatest invention since the printing press. Genius people can build their experiments and share with everyone around the world. Thank you so much for this! Wishing you the best!
Still incomplete since as many stated this is indeed wireless but not the hertz type but a capacitance like transfer. TH-cam is for stating the x happened not for the reason x happened.
@@stefano.a Read other comments or a physics book about the definition of a capacitor... Also tesla coil has a COIL (inductor) and uses a more general capacitor than this experiment does
Billy Monday the spectrum of the signal produced from spark is so large that is surely transmitted ad electomagnetic wave. To be sure that the receiver it is not in the “short” field distance is enough to move the receiving antenna more distant. But the concept doesn’t change.
Curiosity was a real thing back in those days. That’s why they were able to make such advancements - today, because of the internet & the ease of access to information, we have indirectly been made both ignorant & uninterested. We’re spoiled!
@@Digital963 right but it only makes us even more curious, look what things we have achieved in last decade, spacex , phones and now we are going to mars
@@Digital963 man and curiosity go side by side. The discoveries that we are making now are exponentially more complex when compared to the old days. Just think about quantum, Planck and Einstein lead the discovery of this ideology and now we are implementing it.
Yes when we had maxwell in our physics class we all were amazed and simultaneously said that maxwell equations are much more important than Einsteins relativity theory.
Many years ago I did an experiment with the same setup using an LED and a piezo igniter and got it to light up 4 meters away with long wires on both ends of the igniter and receiver using a coherer. It worked really well!
Thank you. I was reading one of Poincaré's paper and he was talking about this experiment, but sadly a text is not good enough for one to understand how exactly was the experiment so I decided to search for it on youtube. Your video was good enough for me to understand it better, thank you very much!
One has to be careful how to interpret this experiment as the receiver is so near that one may be receiving the near field and not the far distant field. So this could be interpreted as a transformer effect and not a " transmission" effect as shown by the diagram at 0:58 where there are about five half wavelengths between the transmitter and receiver. Well what is shown is " ELECTROMAGNETIC" but it is not an electromagnetic WAVE ! I would say it is an induction transformer effect.
Fuck me. He was only trying to give a "domestic" level insight with a simple experiment. Of course one could actually reproduce Hertz's original experiment and you would presumably be happy with that you gigantic fucking tool.
Very nicely demonstrated. Thank you for your efforts. If I can humbly suggest an improvement, you can switch the high voltage generator on/off with the Morse code for a word. There you have digital communications.
Pity the poor guy who lives next door who can't understand why his electronic gear keeps doing strange stuff. I have a "Boys Own Paper" annual from 1922 which shows you how to build a spark gap transmitter and offers a prize "for the boy who demonstrates the largest distance a signal is transmitted" . A year or two later the British Post Office made such kit illegal because of interference with new wireless stations being set up.
Notice that when the neon lamp glows that the glow is only around one electrode? Neon lamps of this type can be used to check for Direct Current, as is the case in this last demonstration. If it were Alternating Current it would then glow from both electrodes. This is not to say that the source supply is AC or DC but the result to the lamp at a distance is shown to be DC. Thanks for this video, it is always nice to watch them.
It's unipolar, but not dc (as it is not a constant current). Huh? In this case, what is happening is an exponential decay. In each case, you have a capacitor (yes, the quartz "shocker" in the lighter is effectively a capacitor charged by piezomechanical stimulation) that discharges through a spark gap (a sort of variable resistor if you will). To transmit an electromagnetic wave, you only need a time-varying signal and an antenna, and a discharge is time-varying. But this discharge is not a sinusoidal wave, it is unipolar...it moves from one potential down to zero (asymptotically close anyway), never crossing over. It's a curve of the form V*e^-(t/RC), so it never crosses the x-axis.
I would like to have seen it performed in a way as to block any reflection of the lite that you are transmitting. Preferably one with the spark gap and the lite bulb in a box with black background to show the lite better. And to have a non translucent blocking material between the spark gap and bulb to show no reflection on the glass bulb from the spark gap. To show a good experiment, is to show it in a away as to not leave any angles that could be used to disprove your experiment. Thank You
You took great efforts to experiment all this videos. You are super experimentor not belonging to this planet I pray god for 10M subscribers. Thanks for the efforts.
Actually, those same waves are literally the ONLY thing your eyes can see lol. Visible light is a little higher on the electromagnetic spectrum than the spark gap transmitter here is producing. Raise the frequency far enough, and instead of a spark, it would emit visible light!
@@animeepisode9280 Wow - so much hostility just because someone doesn't understand electromagnetism - I'm ignorant too, but not an "idiot". We are here to learn, but some people have such big egos because they know something another person doesn't, as IF that makes you intelligent.
@@animeepisode9280 Also, if you deform a quartz crystal, a high voltage can be generated. The effect works both ways. That’s the way spark ignitors work for lighters, and is how the spark was created here. So OP is correct, and this is a clever use of a piezo sparker.
Interestingly a spark gap can be used as a radio jammer. Although this is VERY illegal, and dangerous if you don't know what you're doing. A spark gives off radio waves of every radio band, effectively jamming every radio band within range of its effects. If you had speaker near this spark, it would just play static. Even without a receiver. The wires themselves act as an antenna. Of course, a small spark gap like this would only affect things within a few meters at most. But a large enough one could potentially jam emergency frequencies, public and private radio (private more so), and cause a lot of issues. It would also require a LOT of electricity to make a spark gap that big and to keep it going. The first radio transmitters were actually spark gap transmitters that worked on this very principle. Say for transmitting morse code wirelessly, you just have a switch that creates a spark across the gap, and the reciever will hear it regardless of what it's tuned into. You can hear this for yourself during a thunderstorm. I remember I had a set of Harmon/Kardon speakers that used to click every time there was a flash of lightning. The cord is acting as an antenna and causes the diaphragm to jerk real quick for a moment.
My physics professor was too bored to check our modern physics exam so he said we can record ourselves doing this experiment to pass instead of reviewing this semester. It is not legal but cool. So i am learning right now :3
I'm one of that dislikers. I can explain. This is not a proper expriment. Not enough explaination and there are several mistakes. Even we are not sure that the lamb is emiting light or just reflecting the main spark's light. He had to measure the voltage of that lamb. AND most importantly, the original expriment done by a circle and he uses a linear antenna! instead. This is way more important detail than you think. And i'm not sure but the neon thing may cause another mistake because the magnetic pulse may ignite the gases in tube so the light may not be created by the current but the magnetic field itself. (You can see similar effect on Tesla coils and flourescent lambs)
interesting to see that only one pole of the neon lit up... usually an indication of DC voltage, although AC is clearly transmitted.... This leads to more questions....
Electromagnetism was used in Egypt 2700 to 3000 years before Europe and the French invaded the African land. Also, Volta’s battery the laden jar to Tesla coil all have discovered to have been in use in Egypt.
Question, can these waves be created and turned back towards each other just like acoustic waves can be to produce acoustic levitation affect at their wave nodes?
Great video - many thanks. Can I ask what would happen experimentally if you rotated the receiver through 90 degrees? Could this setup also be used to prove that the EM transmission is polarised?
@@neldungca8524 Thanks - it is very important. I don't really buy the photon model (of EM transmission anyway) so for me polarisation is such a wave like phenomenon that I'm not convinced by polarisation using a photon model.
Why does only one electrode of the neon lamp light up? if the lamp was lighting from radio waves they would both light up. Hertz' experiment used a loop as a receiver, not a dipole.
It's because the circuit gave an exponential decay, not a damped sinusoid. As "TheIAMINU" comments above, you needed to add some inductance in parallel to the capacitor (or in series with each arm of the dipole) to make a circuit that would ring down resonantly. The type of antenna has NOTHING to do with the observed effect.
What exactly causes the spark in the detector? Is it EMW or the normal light (from the spark in the circuit). I mean if we have used normal circuit, instead of the LCR circuit having oscillations and all... will the spark in the detector still be there? Bcz I have read somewhere that EMW has the effect on spark length. I'm confused with the exact cause of spark🙃.plss explain. It would be a great help.
We are trying to recreate this experiment but we are not getting a good output in the bulb. Only a small orange dot is visible, the whole led doesn't spark up. Pls help.
A video about a cohärer (a Metall filled tube with one electrode on each contakt) would be interesting, especially in the context of this video (wireless power transmission). I tried it myself, and it was amazing to see how far you can for example swich a LED on and off.
@@ludicscience, thank you!.. here I was thinking that the dipole with the foil was the key. Now I understand, it is the higher frequency broadband EM produced by the spark that propagates.
Amazing video…👍🏼. 3 questions. 1)Is that a dipole antenna? The antenna design is different from Hert’s original experiment. 2) how far can you transmit the EM waves? 3) will an Led bulb fives the same effect? Tqvm.
what is the purpose of shining aluminum foil used in the transmitter, are waves transmitted through the foils, so if we cover up the point of spark it should still work.
Yes, the spark is to allow the sudden flow of electrical energy, that's all. The foil paddles are the antenna, which transmit the electromagnetic energy. So, if the spark was covered, it would still work.
This is why youtube is the greatest invention since the printing press. Genius people can build their experiments and share with everyone around the world. Thank you so much for this! Wishing you the best!
Still incomplete since as many stated this is indeed wireless but not the hertz type but a capacitance like transfer. TH-cam is for stating the x happened not for the reason x happened.
Billy Monday how did you conclude that this is a “capacitance like” transfer? You are confusing a tesla coil with this experiment.
@@stefano.a Read other comments or a physics book about the definition of a capacitor... Also tesla coil has a COIL (inductor) and uses a more general capacitor than this experiment does
Billy Monday the spectrum of the signal produced from spark is so large that is surely transmitted ad electomagnetic wave. To be sure that the receiver it is not in the “short” field distance is enough to move the receiving antenna more distant. But the concept doesn’t change.
@@stefano.a I didnt dissprove antennas , however this experiment doesnt prove them either ok?
Did anyone ever just stop and really think about the brilliance that these scientists must have had, considering no computers.
Curiosity was a real thing back in those days. That’s why they were able to make such advancements - today, because of the internet & the ease of access to information, we have indirectly been made both ignorant & uninterested. We’re spoiled!
@@Digital963 right but it only makes us even more curious, look what things we have achieved in last decade, spacex , phones and now we are going to mars
@@Digital963 man and curiosity go side by side. The discoveries that we are making now are exponentially more complex when compared to the old days. Just think about quantum, Planck and Einstein lead the discovery of this ideology and now we are implementing it.
@@gmusashi_45 I never questioned the complexity or importance of today's discovery.
That's a great statement 👌👌
It's amazing how such simple experiments can be used to prove such complicated ideas
It's amazing to view an experiment, than to learn it simply. Thanks for this excellent work.
Maxwell took the biggest leap among all the theories that were ever produced!
U c how antennas work same principle of maxwell
Yes when we had maxwell in our physics class we all were amazed and simultaneously said that maxwell equations are much more important than Einsteins relativity theory.
Many years ago I did an experiment with the same setup using an LED and a piezo igniter and got it to light up 4 meters away with long wires on both ends of the igniter and receiver using a coherer. It worked really well!
طالبه سادس خارجي مرت من هنا لكي تفهم طريقه هيرتز في توليد شراره من العراق ❤❤❤❤❤
The best video to replicate the idea incorporated first. I was looking for the exact same thing. So grateful.
Thanks
Thank you. I was reading one of Poincaré's paper and he was talking about this experiment, but sadly a text is not good enough for one to understand how exactly was the experiment so I decided to search for it on youtube. Your video was good enough for me to understand it better, thank you very much!
Happy to hear that
One has to be careful how to interpret this experiment as the receiver is so near that one may be receiving the near field and not the far distant field. So this could be interpreted as a transformer effect and not a " transmission" effect as shown by the diagram at 0:58 where there are about five half wavelengths between the transmitter and receiver. Well what is shown is " ELECTROMAGNETIC" but it is not an electromagnetic WAVE ! I would say it is an induction transformer effect.
Absolutely agree.
And the problem with that...?
@@fazergazer I think what the poster means is the effect could be via inductiin rather than em radiation.
Fuck me. He was only trying to give a "domestic" level insight with a simple experiment. Of course one could actually reproduce Hertz's original experiment and you would presumably be happy with that you gigantic fucking tool.
A near magnetic field is effectively around two spark gap lengths.. so it's not that.
Very nicely demonstrated. Thank you for your efforts. If I can humbly suggest an improvement, you can switch the high voltage generator on/off with the Morse code for a word. There you have digital communications.
Wow. Salutations to your practicality.
Pity the poor guy who lives next door who can't understand why his electronic gear keeps doing strange stuff. I have a "Boys Own Paper" annual from 1922 which shows you how to build a spark gap transmitter and offers a prize "for the boy who demonstrates the largest distance a signal is transmitted" . A year or two later the British Post Office made such kit illegal because of interference with new wireless stations being set up.
+Gribbo9999 Nice anecdote
Home-grown electronic warfare! ;)
Great demo!
illegal? Woah
if you do this at a distace its a weapon sort of first ray gun
Notice that when the neon lamp glows that the glow is only around one electrode? Neon lamps of this type can be used to check for Direct Current, as is the case in this last demonstration. If it were Alternating Current it would then glow from both electrodes.
This is not to say that the source supply is AC or DC but the result to the lamp at a distance is shown to be DC.
Thanks for this video, it is always nice to watch them.
Good point, thanks!
It's unipolar, but not dc (as it is not a constant current). Huh? In this case, what is happening is an exponential decay. In each case, you have a capacitor (yes, the quartz "shocker" in the lighter is effectively a capacitor charged by piezomechanical stimulation) that discharges through a spark gap (a sort of variable resistor if you will). To transmit an electromagnetic wave, you only need a time-varying signal and an antenna, and a discharge is time-varying. But this discharge is not a sinusoidal wave, it is unipolar...it moves from one potential down to zero (asymptotically close anyway), never crossing over. It's a curve of the form V*e^-(t/RC), so it never crosses the x-axis.
Can you like explain why dc would only glow one electrode and why ac would glow two
What are the materials required to do this experiment?
U should make a journal. I will happily to read it
this video is perfection
I would like to have seen it performed in a way as to block any reflection of the lite that you are transmitting. Preferably one with the spark gap and the lite bulb in a box with black background to show the lite better. And to have a non translucent blocking material between the spark gap and bulb to show no reflection on the glass bulb from the spark gap. To show a good experiment, is to show it in a away as to not leave any angles that could be used to disprove your experiment. Thank You
One of the best explanation of em wave
You took great efforts to experiment all this videos. You are super experimentor not belonging to this planet I pray god for 10M subscribers. Thanks for the efforts.
Incredible! I may have to try this for myself as I already have a bunch of dissected lighters. Amazing work!
thanks man for this...really amazing to see with eyes that waves travel in space
Actually, those same waves are literally the ONLY thing your eyes can see lol. Visible light is a little higher on the electromagnetic spectrum than the spark gap transmitter here is producing. Raise the frequency far enough, and instead of a spark, it would emit visible light!
This demonstration is excellent and i have a better understanding of em radiation. Thanks for making!
what a simplified experiment.
thank you so much.
you made my day.
:)
@@HITLERSENSEITHEORIGINAL69 nope.
Excellent work
thanks
The antennas are not connected right? Cos its zoomed in
Thanks for the nice demo.
Bravo
Very nice video
Very clever use of the piezo!
Piezoelectric effect- A effect in which the two ends quartz crystal are given a difference of 10,000V to generate Ultrasonic waves.
You are a idiot
@@animeepisode9280 Wow - so much hostility just because someone doesn't understand electromagnetism - I'm ignorant too, but not an "idiot". We are here to learn, but some people have such big egos because they know something another person doesn't, as IF that makes you intelligent.
@@animeepisode9280 Also, if you deform a quartz crystal, a high voltage can be generated. The effect works both ways. That’s the way spark ignitors work for lighters, and is how the spark was created here. So OP is correct, and this is a clever use of a piezo sparker.
One of the only great indian science youtubers lol. You are brilliant! ♥️
Interestingly a spark gap can be used as a radio jammer. Although this is VERY illegal, and dangerous if you don't know what you're doing. A spark gives off radio waves of every radio band, effectively jamming every radio band within range of its effects. If you had speaker near this spark, it would just play static. Even without a receiver. The wires themselves act as an antenna. Of course, a small spark gap like this would only affect things within a few meters at most. But a large enough one could potentially jam emergency frequencies, public and private radio (private more so), and cause a lot of issues. It would also require a LOT of electricity to make a spark gap that big and to keep it going. The first radio transmitters were actually spark gap transmitters that worked on this very principle.
Say for transmitting morse code wirelessly, you just have a switch that creates a spark across the gap, and the reciever will hear it regardless of what it's tuned into. You can hear this for yourself during a thunderstorm. I remember I had a set of Harmon/Kardon speakers that used to click every time there was a flash of lightning. The cord is acting as an antenna and causes the diaphragm to jerk real quick for a moment.
My physics professor was too bored to check our modern physics exam so he said we can record ourselves doing this experiment to pass instead of reviewing this semester. It is not legal but cool. So i am learning right now :3
this is a genius demo....my respect to you sir.
A very good experimental explanation of Hertz experiment👍👍👍👍
Can we transfer enegry by this method?
I heard it said that James Clerk Maxwell is the greatest scientist that most people haven't heard of. I loved the experiment. Thanks
+Siskin's Bits and Bobs Yeah Maxwell was a genius, and nobody goes saying "hey Maxwell invented that", as with Tesla, sadly
ِA man who calculated the speed of light THEORETICALLY !! You know what this means..
That's because there's a fast luxury car named after Tesla, but only coffee named after Maxwell.
Is there any way to block the unnecessary waves inside a home?
It is badly needed!
Great vid, bud. Liked, and added to favorites. Thanks for posting this.
What are the things used in it
it's freaking magic to me...where do you find this used in daily life? Like, what are the practical applications for something like that
Any radio. They use a more refined version of this process.
Literally any type of wireless connection brtween electronic devices.
how much distance can you keep the neon bulb?
Great video , I don’t know why some people disliked this great video
I'm one of that dislikers. I can explain. This is not a proper expriment. Not enough explaination and there are several mistakes. Even we are not sure that the lamb is emiting light or just reflecting the main spark's light. He had to measure the voltage of that lamb. AND most importantly, the original expriment done by a circle and he uses a linear antenna! instead. This is way more important detail than you think. And i'm not sure but the neon thing may cause another mistake because the magnetic pulse may ignite the gases in tube so the light may not be created by the current but the magnetic field itself. (You can see similar effect on Tesla coils and flourescent lambs)
why spark gaps produce strongest em? why its used?
Interesting. But I wonder, is there a need for a warning about using high voltage in the second half of the video?
interesting to see that only one pole of the neon lit up... usually an indication of DC voltage, although AC is clearly transmitted.... This leads to more questions....
By using DC, you only get a half wave pulse as opposed to a full AC waveform
@@FreiNrg If viewing the received waveform with an oscilloscope, would you not see a full sinusoidal waveform?
Can you say me what are the apparatus you used
whats the purpose of those aluminium foils?
any idea why silver papers
what would happen if u stuck ur hand between the lamp and the spark???
Love the video. One thing, TH-cam got rid of annotations, so the link to the other video isn't visible anymore. Thought you might want to know this.
Thanks
can you make a more detailed version like a tutorial on this
What's the tin foil for?
Did u supply this equipment for physics lab
Ciao! Nice video and experiment! One question: what is the aim of the two aluminum foils on the transmitter?
question, what is the 2 foil that is attached to the metal rod for?
what is the purpose of generating spark?
Do i get shock if i put hand between them?
whrere is the link plz tell.
Good demonstration of how effective resonance is...
Amazing!!
This video helped me a lot
Is it important to bend the wings of the antena?
Thanks for this wonderful demonstration
Hello, what is the duty of capacitor here ?
Is there a way to block radio waves from a portion of your body safely? Thank you.
Why we put Aluminium foil??
As an oscilator
What is material of the antenna??
I'm trying to replicate your take on this experiment and I have the ionized spark and the little bulb, but I can't get it to work. Any suggestions?
I wonder, can I let Tronic waves be used to charge or discharge a battery from a distance? Can such charging or discharging be done by laser?
What are those "wings" on the antenna made of? and what do they do?
Can you give the procedures to make that?
Hello, I hope you were successful. If you have learned it, can you explain the procedures to me?
Electromagnetism was used in Egypt 2700 to 3000 years before Europe and the French invaded the African land. Also, Volta’s battery the laden jar to Tesla coil all have discovered to have been in use in Egypt.
sir i have an doubt : the electromagnetic wave only passes through along straight path
if distance increases what will happen sir
If distance increase charge or voltage to the antenna also should be increases
Question, can these waves be created and turned back towards each other just like acoustic waves can be to produce acoustic levitation affect at their wave nodes?
What's the silver leaf for? Anyone........
Great video - many thanks. Can I ask what would happen experimentally if you rotated the receiver through 90 degrees? Could this setup also be used to prove that the EM transmission is polarised?
Yes it could not light as result of polarization
@@neldungca8524 Thanks - it is very important. I don't really buy the photon model (of EM transmission anyway) so for me polarisation is such a wave like phenomenon that I'm not convinced by polarisation using a photon model.
AWESOME experiment!! Thank you!!
What the aluminium foils are for?
why those big plates and capacitor is used???
hello sir, how much far between the both of Tx and Rx how we do?
could you make a version with multiple lamps in a line in increasing distance from the spark ? or a 2D array
Why does only one electrode of the neon lamp light up? if the lamp was lighting from radio waves they would both light up. Hertz' experiment used a loop as a receiver, not a dipole.
+pixelpatter01 That is the reason, the use of a dipole.
+Ludic Science My BS meter is pegged right now.
It's because the circuit gave an exponential decay, not a damped sinusoid. As "TheIAMINU" comments above, you needed to add some inductance in parallel to the capacitor (or in series with each arm of the dipole) to make a circuit that would ring down resonantly. The type of antenna has NOTHING to do with the observed effect.
May I know the materials used?? We need it for our Performance task
Hello, I hope you were successful. If you have learned it, can you explain the materials to me?
What exactly causes the spark in the detector? Is it EMW or the normal light (from the spark in the circuit). I mean if we have used normal circuit, instead of the LCR circuit having oscillations and all... will the spark in the detector still be there? Bcz I have read somewhere that EMW has the effect on spark length. I'm confused with the exact cause of spark🙃.plss explain. It would be a great help.
I think its probably the EM wave, as its supplying an electric field to it and giving it enough energy to glow
We are trying to recreate this experiment but we are not getting a good output in the bulb. Only a small orange dot is visible, the whole led doesn't spark up. Pls help.
Hello, I hope you were successful. If you have learned it, can you explain the materials to me?
Where is the link for the high power source plz make quick
How many volt/wats is this neon lamp?
who is the narrator count dracula?
Brilliant !
Well done!
I love it
😊
Any idee of the spectrum ?
Wonderful!
I am subscribing and hope to see more videos like this in future...
Thanks
+Debjit625 Thanks!
Could you built a morse transmitter ?
You are genious sir.......Great video 👍
Thanks
A video about a cohärer (a Metall filled tube with one electrode on each contakt) would be interesting, especially in the context of this video (wireless power transmission).
I tried it myself, and it was amazing to see how far you can for example swich a LED on and off.
helut kuno I wll do that definitely
Have you tested the aerial current with a voltage meter?
fantastic! but is there any need to lose power with a spark configuration at the source antenna.
The spark creates the electromagnetic wave. It does not work without the spark
@@ludicscience, thank you!.. here I was thinking that the dipole with the foil was the key. Now I understand, it is the higher frequency broadband EM produced by the spark that propagates.
Amazing video…👍🏼. 3 questions.
1)Is that a dipole antenna? The antenna design is different from Hert’s original experiment.
2) how far can you transmit the EM waves?
3) will an Led bulb fives the same effect?
Tqvm.
what is the purpose of shining aluminum foil used in the transmitter, are waves transmitted through the foils, so if we cover up the point of spark it should still work.
Yes, the spark is to allow the sudden flow of electrical energy, that's all. The foil paddles are the antenna, which transmit the electromagnetic energy. So, if the spark was covered, it would still work.
@@nojiratzlaff4388 Thanks for reply
where is the link to make that power suply?
A tv high voltage transformer and a transistor oscillator using a winding for reaction and one as primary of the transformer
You can improvised an ignition coil system and the output would be used to charge the rod
Sorry to sound silly, but what do the alumkinum sheets do?
Great demonstration of hertz experiment
Visible light?
Very nice experiment, I will show this video for my physics students. Thank u.
+Alberto Moreau thanks!