Still incomplete since as many stated this is indeed wireless but not the hertz type but a capacitance like transfer. KZfaq 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?

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 👌👌

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.

Thanks

Happy to hear that

:)

@@HITLERSENSEITHEORIGINAL69 nope.

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!

Wow. Salutations to your practicality.

+Debjit625 Thanks!

thanks

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.

Bravo

Very nice video

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.

😊

Good point, thanks!

I agree. This implies DC so maybe your experiment does not in fact demonstrate "Hertzian Waves" but merely capacitive coupling. I think you need to separate both halves of the experiment somewhat as Hertz himself did.

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

+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

helut kuno I wll do that definitely

Glad you like it

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.

+Ege Sarioglu open the lighter and you will find the two wires

+Mr Ghotala Hi, no i don´t

Thanks

Calculate it to the speed of light divide by the frequency that the lead antenna can hold on

Actually an antenna (the sheets of foil) is essential in producing radio waves. The EM waves are not caused by the spark but the variation in the current traveling through the antenna. Note that real life radio antennas do not need a spark.

The purpose of the spark is to allow for the sudden discharge of energy, and the fact that the sudden energy change appears on the foil paddles allows for the generation of electromagnetic energy, which then propagate.

Experimento de ondas de radio heinrich hertz

not easy at all

If distance increase charge or voltage to the antenna also should be increases

+Alberto Moreau thanks!

I think its probably the EM wave, as its supplying an electric field to it and giving it enough energy to glow

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

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)