I don't know how to express how much I respect these demonstrations of principles which mostly consist of "theory that just works". Great work.

If my grade school teachers had demonstrated stuff like this, I would have had much more interest in science.

Even though one knows the theory, actually seeing the field properties is so informative, real world.

This would be a great video to show to prospective ham operators in a Technician license course.

As a Ham operator, that was not just interesting, but hugely informative to help me picture what goes on on an antenna. And just cool science. Thanks very much!

It's one thing to read about it from some book, but something much more digestable and intuitive to experience it in person using such simple tools!! More and even lower grade schools should show stuff like that!!!! So THANK YOU VERY MUCH! 73 !

Very nice demonstration！ THank you sir！It helps a ton to have a better understanding of the electromagnetic filed out of a dipole.

This was absolutely fascinating. Thank you so much for demonstrating this.

Thank you so much for taking the time to create such valuable video

Brilliant presentation. This explains theory of Maxwell Equations in practical way.

I appreciate your experiment. On demonstration of B-field, in fact 2 loops perpendicular to each other exist, the small loop is the connection of the light bulb. The small loop could get the B-field. In near field probe applications, we always use small loop sniffers perpendicular to the wire.

Great visual demo and explanation , very helpful 👍

OUTSTANDINNG! Very well done. Thank you

As an RF specialist i liked too much this video! Very didactic!

That loop still blows my mind

Even if you know this stuff it's a beautiful demonstration.

I visited a high power transmit station, the fluorescent light fixtures were fitted in the room but never wired up to mains power, but they had a nice glow just like this demonstration.

Amazing presentation, thank you!!!!

Impressive demonstration. Safety distance of 100W 300 MHz into a dipole would be about 4 meters in my country (28 V/m E-field strength limit)

The Florescent bulb is a voltage device, and so it emits more light, at the ends of the dipole, where the voltage is highest!

Great explanation! Thanks.

Awesome demonstration!!

Superb Demonstration! Thank you!

love these videos!

10 years ago I saw a identical video from Harvard, I think was this same lab and transmitter, but there was a water tank and he submersed a smaller antenna that lit a bulb only inside the tank, showing that the magnetic field changes in wavelength when traveling inside different densities, so the bulb did not lit outside the tank because the antenna was so small tho the wavelength of the air.

Fabulous demo !

great video as always :D

Thank you for this great video!

Great way to demonstrate this. Thank you!

Brilliant demo

Very interesting demonstration, I believe that it is the same emission that leads to close the dipoles of the L-rods with an electric field and variations of the unified field :-)

OMG fantastic ......thanks a lot ... if such experiments are shown .....all people including non technical ....will start loving the physics,maths & nature.. .....

Fascinating experiements! 🙄 Stay safe, regards Niels ❤💕

What a demonstration sr👏👏👏

Outstanding explanation 👍 thanks for sharing.

One of the best videos I have seen KZfaq

this is the best video i have seen til today

We experiment with Lorentz force RF antennas. The physical field manifestation is interesting. Here is one setup: 1) 10 layers of store-bought aluminum foil, each layer separated by a dielectric layer (basically a 10-layer lamination). The lamination is horizontally oriented on the workbench 2) very strong vertically-oriented B-field applied to the axis (center) of the lamination 3) roughly 16 Mhz fed to eddy current coils positioned radially, and adjacent to, but not touching, the foil lamination With a vertical B field through the centerpoint, and radial eddy currents flowing horizontally through the metal layers, the Lorentz force sweeps the charged particles in the metal layers back and forth, coherently, at the 16 Mhz rate. Since artificial gravity can be created by immense coherent accelerations present in the bulk of a sample, we use variations of this design to check for such effects.

Super film. Dziękuję bardzo

Thank you and more please!

Isn't it scary that only about 6k people watch this yet prank videos get millions?

I was waiting for him to say “Induction Loop” and “Horizontal Polarisation” , otherwise a very visual representation, thanks.

Beautiful. Thank you

This is really cool. Consider how you might make a similar demonstration of concepts with household or hardware store items.

Absolutely mind blowing learning from this video

As an AM broadcast engineer, I used to have visitors carry a 4' fluorescent lamp to "help me" and walk them past the tower. A lot of broken lamps in the gravel over the years.

Thank you very much for this educative video and visualise the antenna field surrounding it. Tnx for sharing VU2GNR

Fascinating!

I REALY LIKE IT! GOOD JOB

so much better than only a text book

NICE VIDEO!!!

This is forcing me to think and improve my antenna - and hang a few more. Thank you.

wow, great video.

As you I use to show this to my students (ESIEE Paris) but with the help of a Baofeng and a log-periodic Yagi. I don't have an 100 W RFPA ! But I believe you don't use it at full power otherwise the bulbs will suffer somewhat. Using an horizontal reflector below RX and Tx dipoles you can also show the Fresnel zones. All students like to see that :D

Very nice and inspiring.

Respect, very helpful!

Well attractive explanation, thank you.

Resources online today.. omg.. double thumbs up !

Thank you so much ❤

WOW. Spelled W.O.W. GR8T demo. This explained a lot.

It's really facinating how so many properties with-in Nature exist in waves, frequencies, and vibration, which converts into energy. Also differences seem to be a key factor in keeping dynamic systems functioning. High pressure/low pressure, hot/cold temp, different densities, static electric charges/discharges, electromagnetism north/south poles, different velocity/angular momentum, layers between different regions like land, water, air, edge of atmosphere, in space the regions of particle bubbles/cloud regions, nebula's/ Galaxy clusters/to less dense regions of space. All of these things are basic differences but create a way for the dynamic engine with-in Nature to continue flowing and operating to create and convert energy. Like regions of high/low pressure and temperature differences create winds. Transfer that into water or planets core and add density. It creates either ocean currents and flow or planetary convection geothermal activity.

Amazing sir 🌟🌟

Thank you so much!

Beautiful go on i love science

wow, never thought antenna would be this simple

COOL !! 😀👍🏻 Thanks, Bro

I love that video :)

It would be fun to build an array of lights and coils along the dipole emission field in 90° orientations to see this effect. thanks for sharing

Amazing!

No need for 100W. I did the same when I was a eenager experimenting with approx. 8-10W @100 MHz, (with QQE03/12 tube, parts from old tube radios and TV’s and a standard FM radio dipole, Then dimming the light by varying the power. Once light up one could walk pretty far away with the tube. It convinced my parents I could do magic. :-) This brought back the memory of those fun times.

Thank you sir.

Magic demo.

That was brilliant. I bloody love the Internet.

This is great

Excellent superb. Tq

great demonstration

Sus videos son muy buenos siga asi

This is a very cool demonstration! Can you come up with an experiment that reveals the phase relationship of the electric field to the magnetic field close to the transmitting antenna? I'm interested in an experiment, not in a variety of equations. Thanks.

This gives me bumps, geting back to that tesla photo holding a light bulb

Yes, very nice, thanks.

Most excellent presentation! Seeing the relationship between linear dipole and magnetic loop orientation for maximum current flow is critically important; I’m trying to design an antenna with the inductive sensitivity of a magnetic loop yet able to reflect and direct the electric field aspects of radio signals the way the capacitive character of the linear dipole is able to accomplish. However I’m not able to “see around” the fact that the magnetic field is 90 degree perpendicular to the electric field which is oriented in the direction of wave propagation...an essential fact for electric wave reflection.

Super cool

Best video ever …

Very interesting

lovely bro

well done

I love this stuff

Very good. You demonstrate perfectly that there is a stationary wave surrounding the transmitter antenna. And there is more power at the borders of the dipole. Well done. I think this experiment could be a little bit dangerous for a human due to the high power.

That's some cool old school Tesla OG there

Gracias.

I used this effect years ago with my CB radio. Had a 6 foot fluorescent bulb on roof of car that would light with no wires

It is a very nice demonstrations supporting antenna theory, will it be possible also to perform similar demonstration using folded dipole instead. Thanks.

I love your remarks and, if you brought a circular antenna and take it to a spin, I'd love to see what it does. Because you, it's on a linear point of view. . . J'adore vos remarques et, si vous apportiez une antenne circulaire et que vous l'emmenez à une rotation, j'aimerais voir ce que cela fait. Car vous, c'est sur un point de vue linéaire . . .

Anytime I'll see one of these videos I feel a little bit stupid and I love it..🦊🧡⚜️⚡

Thanks good nice👍👍👍👍👍👍

I want a 100W transmitter too, it would be fun to use lol

Good demonstration. That's what Nikola Tesla wanted to achieve, to be able to transmit power thru radio waves and light up the world! I believe he was way ahead of his time!

Quando a antena estava em uma posição perpendicular e ele aproximou o dedo, notei um repentino aumento do brilho da lâmpada incandescente. Ou seja , o corpo do rapaz está também servindo de transmissor .

So to me the next step would be to capture any electricity and store it. Can that be done? Or can it only provide a throughput to the load? And if electricity can then be captured from the B-field antennae, can it be scaled up to the point that it produces a significant enough amount of electricity to power electrical devices or even a home.?

I get the feeling Nikola Tesla would have enjoyed seeing this.