[hamdani yusuf (OP)]

I have uploaded my latest video of my investigation on microwave's behavior. This time I demonstrate interference of microwave using two paraffin plates which act as dielectric material. Here we can see clearly the occurrence of constructive and destructive interference of the microwave due to the gap between the plates, related to microwave's wave length.

youtube.com/watch?v=2heUH1a9yYo
I think this experiment hold a key point for building my new theory on electromagnetic wave.

[hamdani yusuf (OP)]

My current research in optics and microwave are strongly indicating that refraction is best viewed as multilayer partial reflection.

[hamdani yusuf (OP)]

At last I can replicate refraction and internal reflection in microwave using array of metallic cylinders. I'll upload the video soon.
Stay tuned!

[hamdani yusuf (OP)]

I have uploaded new video showing diffraction in microwave frequency.

Basically, the experiment result leads us to conclude that diffraction comes from the material blocking the microwave path. When the obstruction is opaque enough, we find no diffraction. It's similar to my experiment using laser showing non-diffractive obstruction.

This result is not widely known yet.
 

[hamdani yusuf (OP)]

My next videos will explore further microwave behavior when interacting with meta-materials in various shapes and configurations.

[Bored chemist]

Have you mistaken this site for your blog?

[hamdani yusuf (OP)]

Have you mistaken this site for your blog?

No. I think that this part of the forum is for "Discussion of science experiments on the show or to do at home".
Just read the description of "Science Experiments".
If this is not the right place to share my experiments with other members of the forum who are curious about science, could you please tell me where should I put them?

[evan_au]

I watched a few of the experiments, and they illustrate some interesting effects of electromagnetism.

I hope the power of the transmitter is quite low, as microwave exposure has been associated with development of cataracts in the eyes - the lens of the eye has a poor blood supply, and so has trouble keeping at 37C when exposed to microwaves. Maybe just turn on the transmitter for a few seconds while filming, then take a break while planning the next experiment?

[hamdani yusuf (OP)]

I watched a few of the experiments, and they illustrate some interesting effects of electromagnetism.

I hope the power of the transmitter is quite low, as microwave exposure has been associated with development of cataracts in the eyes - the lens of the eye has a poor blood supply, and so has trouble keeping at 37C when exposed to microwaves. Maybe just turn on the transmitter for a few seconds while filming, then take a break while planning the next experiment?

Thanks for your advice.
I've measured electrical power consumption of the transmitter in one of my video. It took around 22 mA at 220 V to operate. So the power consumption is around 4.8 Watts, which is much less than average microwave cooker.

[Bored chemist]

...
No. I think that this part of the forum is for "Discussion of science experiments on the show or to do at home".
...

A discussion needs more than one person.

[hamdani yusuf (OP)]

Which part of my experiments would you like to discuss?

[hamdani yusuf (OP)]

Let's start with my latest video demonstrating diffraction. Do you expect that metal plate doesn't diffract microwave, while dielectric materials do?

[hamdani yusuf (OP)]

Have you expected vertically polarized microwave to go through a surface which is almost completely covered by metal except for some horizontal thin slits?
Or have you expected that the same microwave cannot go through an almost empty plane except for some vertical wires?

[hamdani yusuf (OP)]

Have you expected that a metal plate and a metal grating, can turn linearly polarized microwave into circularly polarized microwave?
Or that the same feature can be done by two rarely arranged metal gratings?

[hamdani yusuf (OP)]

Can you explain the behavior of evanescent wave?

[hamdani yusuf (OP)]

Or one simple fact that a metal grating can rotate linearly polarized microwave?

[hamdani yusuf (OP)]

I have uploaded three more videos investigating behavior of microwave. This time I use meta-material.
The first is constructing meta-material to demonstrate interference by partial reflector

Second, we emulate refraction in microwave using meta-material, which is a multilayer metal grating

Lastly, reconstructing prism for microwave using meta-material to demonstrate refraction and internal reflection.

NB: This is not an April fool

[hamdani yusuf (OP)]

Here is a new video demonstrating diffraction of microwave using multilayer metal grating, which is a meta-material.

Same as diffraction by normal material, it only occurs when the meta-material is adequately transparent to the microwave.

[hamdani yusuf (OP)]

I also uploaded a video demonstrating a non-refractive prism.

According to Fermat's principle of least time, the result shown in the video would mean that the microwave propagates through the prism with same speed as it would in air, or refractive index of the prism is 1.

[hamdani yusuf (OP)]

My next video try to replicate previous demonstration of refraction by meta-material. Instead of tubular metal, this experiment uses flat metal strip as basic unit of the meta-material. Interesting things are observed, especially apparent refractive index less than 1, which indicates FTL phenomenon.