How does microwave superheat water?

Bored chemist · « **Reply #40 on:** 02/04/2022 17:13:37 »

Quote from: hamdani yusuf on 02/04/2022 16:00:07

how big is the test tube?

Do you know what a test tube is?

hamdani yusuf · « **Reply #41 on:** 02/04/2022 22:42:30 »

Quote from: Bored chemist on 02/04/2022 17:13:06

People were documenting superheating and supercooling before they knew about microwaves.

Can you share the link?
A video would be better.

hamdani yusuf · « **Reply #42 on:** 02/04/2022 22:59:37 »

Quote from: Bored chemist on 02/04/2022 17:13:37

Quote from: hamdani yusuf on 02/04/2022 16:00:07
how big is the test tube?
Do you know what a test tube is?

Have you never worked with different sized test tubes?

Bored chemist · « **Reply #43 on:** 02/04/2022 23:06:45 »

Quote from: hamdani yusuf on 02/04/2022 22:59:37

Quote from: Bored chemist on 02/04/2022 17:13:37
Quote from: hamdani yusuf on 02/04/2022 16:00:07
how big is the test tube?
Do you know what a test tube is?
Have you never worked with different sized test tubes?

Yes, and they are all pretty close to the same size.
Do you know what a boiling tube is?
What about a micro tube?

Bored chemist · « **Reply #44 on:** 02/04/2022 23:07:40 »

Quote from: hamdani yusuf on 02/04/2022 22:42:30

Quote from: Bored chemist on 02/04/2022 17:13:06
People were documenting superheating and supercooling before they knew about microwaves.
Can you share the link?
A video would be better.

So... you want a video from before they had microwaves.
How many pre WWII video recorders do you think there were ?

Bored chemist · « **Reply #45 on:** 02/04/2022 23:13:16 »

https://en.wikipedia.org/wiki/Boiling_chip

Here's a reference from 1930.
https://archive.org/details/sim_journal-of-biological-chemistry_1930_88_contents/page/78/mode/2up?q=antibumping

Why don't you just accept reality?

hamdani yusuf · « **Reply #46 on:** 03/04/2022 03:29:23 »

Here's the video on superheating demineralized water in microwave oven under a linear polarizer.

hamdani yusuf · « **Reply #47 on:** 03/04/2022 03:33:22 »

Quote from: Bored chemist on 02/04/2022 23:06:45

Yes, and they are all pretty close to the same size.

Why do you expect everyone else to use the same size?

Quote from: Bored chemist on 02/04/2022 23:06:45

Do you know what a boiling tube is?
What about a micro tube?

Does it really matter what I know about them?
Can you just tell me?
Or Google them?

hamdani yusuf · « **Reply #48 on:** 03/04/2022 03:34:26 »

Quote from: Bored chemist on 02/04/2022 23:07:40

So... you want a video from before they had microwaves.
How many pre WWII video recorders do you think there were ?

Your own video would be enough. I bet you have a smartphone.

hamdani yusuf · « **Reply #49 on:** 03/04/2022 03:46:10 »

Quote from: Bored chemist on 02/04/2022 23:13:16

https://en.wikipedia.org/wiki/Boiling_chip

Here's a reference from 1930.
https://archive.org/details/sim_journal-of-biological-chemistry_1930_88_contents/page/78/mode/2up?q=antibumping

Why don't you just accept reality?

Some different phenomena may have similar symptoms. In this case, explosion of heated water inside a microwave oven may seem similar to bumping. But we need to consider other symptoms too, and compare if they are found in both cases.
That's why I asked you, who claimed to have experience with bumping. Did you find these symptoms?
Superheating and de-superheating can be done slowly.
Right after the explosion, the water can still be in superheated state.
The superheating is affected by linear polarization.
The superheating can be local and non-homogenous, which means some parts of the water can be superheated while some other parts are not.

Why don't you just enjoy the show?

Bored chemist · « **Reply #50 on:** 03/04/2022 10:33:41 »

Quote from: hamdani yusuf on 03/04/2022 03:46:10

The superheating is affected by linear polarization.

Interesting claim.
You don't have adequate evidence.

hamdani yusuf · « **Reply #51 on:** 03/04/2022 12:22:13 »

Quote from: Bored chemist on 03/04/2022 10:33:41

Quote from: hamdani yusuf on 03/04/2022 03:46:10
The superheating is affected by linear polarization.
Interesting claim.
You don't have adequate evidence.

I can repeat the experiments with and without linear polarizer, and measure the steam formed during desuperheating. If you have no patience waiting for my video, you can do it yourself. It doesn't require exotic equipments. Anyone can do that.

Bored chemist · « **Reply #52 on:** 03/04/2022 12:45:10 »

How are you polarising the microwaves?
Are you taking account of the fact that the magnetron produces a polarised beam?

hamdani yusuf · « **Reply #53 on:** 03/04/2022 14:18:02 »

Quote from: Bored chemist on 03/04/2022 12:45:10

How are you polarising the microwaves?

In case you haven't seen my video, it's done by placing a linear polarizer on top of the water container. If there's no other mechanism involved, we would expect to see less energy goes into the superheated water, instead of more.

Quote from: Bored chemist on 03/04/2022 12:45:10

Are you taking account of the fact that the magnetron produces a polarised beam?

Is it linearly polarized? What's the axis of polarization?

Bored chemist · « **Reply #54 on:** 03/04/2022 16:20:14 »

Quote from: hamdani yusuf on 03/04/2022 14:18:02

Is it linearly polarized? What's the axis of polarization?

I believe so and along the axis of the output coupling connector, I think.

But don't you think you should have checked that?

hamdani yusuf · « **Reply #55 on:** 03/04/2022 23:28:21 »

And here's what bumping looks like.

hamdani yusuf · « **Reply #56 on:** 03/04/2022 23:40:18 »

Quote from: Bored chemist on 03/04/2022 16:20:14

Quote from: hamdani yusuf on 03/04/2022 14:18:02
Is it linearly polarized? What's the axis of polarization?
I believe so and along the axis of the output coupling connector, I think.

But don't you think you should have checked that?

Perhaps you've also watched my other video on microwave transceiver with double reflector. Reflection can change polarization axis.
Inside the oven chamber, the microwave gets reflected multiple times. The rotation of the base also reduces polarization effect.

Bored chemist · « **Reply #57 on:** 04/04/2022 08:49:30 »

So, the effect you are looking for might be caused by the rotation of the dish?

hamdani yusuf · « **Reply #58 on:** 04/04/2022 12:56:12 »

Quote from: Bored chemist on 04/04/2022 08:49:30

So, the effect you are looking for might be caused by the rotation of the dish?

Both experiments involved rotation of the dish.

Bored chemist · « **Reply #59 on:** 04/04/2022 16:13:16 »

So both had variable polarisations.

How does microwave superheat water?

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