1

Physics, Astronomy & Cosmology / Re: What information can be derived from sending an electric current to a structure?

« on: 06/01/2020 08:30:55 »

You can read about eddy current testing in this article
https://en.wikipedia.org/wiki/Eddy-current_testing

Eddy-current testing (also commonly seen as eddy current testing and ECT) is one of many electromagnetic testing methods used in nondestructive testing (NDT) making use of electromagnetic induction to detect and characterize surface and sub-surface flaws in conductive materials.

2

General Science / Re: Can fire cast a shadow?

« on: 26/12/2019 06:24:01 »

Here is another demonstration of black fire I found in YT.

3

Physics, Astronomy & Cosmology / Re: What Do You Call A Moon Of A Moon ?

« on: 14/12/2019 13:20:52 »

It's called subsatellite.
https://en.m.wikipedia.org/wiki/Subsatellite

4

Physics, Astronomy & Cosmology / Re: What is the Bernoulli Principle?

« on: 27/11/2019 01:04:55 »

I consider this as yet another great evidence that the electric current flows de facto from the Plus to the Minus-pole of the battery.

It doesn't indicate anything like that.

It wasn't me who wrote that. I have the same experience as this not so long ago. I checked and found that it occurs when you select someone's statements but then click someone else's action button.

5

Physics, Astronomy & Cosmology / Re: What is the Bernoulli Principle?

« on: 26/11/2019 12:01:25 »

Since here it is not allowed to post external links, I can tell only to search for my full name and you will find my book on academia edu (pages 23-26).

I think you should create a new topic in New Theory section due to policy of this forum. You can explain your theory in more details. The topic of diffraction and magnet deflection can be discussed in separate threads. I've made extensive experiments about light diffraction and share them here https://www.thenakedscientists.com/forum/index.php?topic=66301.0
Let's see if you can explain the results using your theory.

I've browse your website and find an interesting experiment shown below

I have posted originally there this interesting experiment I came across recently in the book Physik, Band 2 from the author Hermann von Baravalle (pages 83–84). Look at the setup below.
When high DC voltage is connected to it, then sparks start to jump across the upper part of the circuit.

As soon as the poles of the voltage source are reversed, then sparks start to jump across the lower part of the circuit (drawing below).

The two different ends where the sparks jump are a thick sharpened wire and a metal plate.
I consider this as yet another great evidence that the electric current flows de facto from the Plus to the Minus-pole of the battery.

I think I can try to repeat and verify the experiment and then upload it to my Youtube channel.

6

Physics, Astronomy & Cosmology / Re: What is the Bernoulli Principle?

« on: 25/11/2019 04:10:11 »

Alas no. The current is the same in both wires, so the magnetic field is identical outside the wire. The current density is greater in the thinner wire but you won't notice the difference unless the thicker wire is much wider than the length of the compass needle.

I speak on basis of experiments. What experimental evidence I have for my assertion about the deflection of the magnetic needles you can read in my book, which is downloadable free of charge.

Interesting. My experience using clamp meter never show difference in Ampere reading due to cable size. Where can I download your book? Which part of your book contains this particular experiment?

7

Physics, Astronomy & Cosmology / Re: What happens when both slits are observed by in the double slit experiment?

« on: 11/11/2019 02:55:14 »

I watched as single photons passed through a single slit producing a single bar pattern.

I believe this only happens in simulation, never really happens in actual experiment. The images below show what you'd get from single slit and double slit experiment.

With a normal single slit apperture, you will still get interference pattern due to diffraction effect.

8

New Theories / Re: Do we need to alternate polarity, when we transmit RF?

« on: 01/11/2019 03:29:11 »

The "hump" is 180 degrees of one frequency. 

Please read this
https://en.wikipedia.org/wiki/Fourier_series#Table_of_common_Fourier_series

9

New Theories / Re: Can scientific beliefs be compared to religous dogma?

« on: 20/10/2018 08:28:48 »

No i am a retired engineer, with very little science, & not much math. I like to have an intense interest for a few years & then move on to something new, & at present my main interest is aether (which requires that i try to understand the enemy (Einstein)).I am very impressed & awed with~by the intelligence of scientists, oldendays & modern, & wish that Einsteinism be quickly dumped so that science advances. My heroes are Cahill, Ranzan, Crothers, Demjanov, Michelson, Miller, Sagnac, Ives, Lorentz, Wallace, Builder, Dingle, Arp, VanFlandern, Allais, Esclangon, Munera, & about 20 others.

I think this youtube channel has some materials you might find interesting.
https://www.youtube.com/channel/UCT87-DzFFbPkAIk2PRZuz2A

10

That CAN'T be true! / Re: Tides is the result of the rotation of the Earth and whirlpools

« on: 04/06/2018 15:13:33 »

I think this video explains tide well. The title is "What Physics Teachers Get Wrong About Tides!"

The summary is that difference of gravitational force between nearest and furthest point on earth in earth-moon axis is too small to be the main cause of tidal bulge. Instead it is caused by the accumulation of forces on points outside of earth-moon axis.

11

Physics, Astronomy & Cosmology / Re: Do out-of-phase photons cancel each other out?

« on: 02/04/2018 11:34:29 »

Johann Mahne  asked the Naked Scientists:
...
If the waves are running from both ends of a rope,then after they collide the rope will have no ripples.

...

Regards
Johann

What do you think?

They will pass through each other in this case, as if nothing is coming from the other end.

12

Physiology & Medicine / Re: Does an individual's mitochondria disappear?

« on: 02/04/2018 11:21:54 »

So, since I don't have sisters, and my mother's sisters didn't reproduce, and I only have sons who have sons am I to understand that whatever of me is physically present on this planet will not continue further? In other words, my only chance of a specious immortality is negated by biology?

You can donate your mitochondria, like in this case :
https://www.newscientist.com/article/2107219-exclusive-worlds-first-baby-born-with-new-3-parent-technique/

13

General Science / Re: Neutral has 0 voltage, so how does current flow?

« on: 15/01/2018 21:49:13 »

Okay thanks guys, the crux of what im getting at is this. Say theres 120v between line and neutral, this potential difference causes current to flow, normally back to the supply transformer through the neutral (which is at earth potential 0V). Okay I get that. So in a live system there is current flowing through the neutral right, so why do i not get a shock if im standing on the ground and i touch the neutral, because there is still current going through it isnt there !!

I suspect it has something to do with the fact that there is no potential difference between the neutral and earth (that im connected to via the ground in this instance); so in that case there is no voltage between neutral and earth, but there is current flowing through the neutral from the live 120v. But i cant feel this 120v if i touch the neutral while im standing on the ground !!! WHY IS THIS PLEASE HELP

the neutral is usually already connected to the earth by the utility providers.

14

Physics, Astronomy & Cosmology / Re: How are muons detected and generated?

« on: 24/11/2017 01:18:13 »

I found an interesting video describing muon detection to demonstrate time dilation.

This is the most comprehensive material I've ever found. But I have some questions need to be cleared.
How to make first spike which represent the event of entering muon into the scintillator always occur on the left most side of the oscilloscope display?
How to determine that other factors that can influence the reading are negligible, especially the possibility that new muon is created between top mountain level and sea level?

15

Physics, Astronomy & Cosmology / Re: Is the photon model of electromagnetic wave an oversimplification?

« on: 21/11/2017 04:20:22 »

Many strangeness in results of experiments showing single photon detection that we found in popular science news hide complexities faced by experimenters. We can even find some papers published in scientific journal depicting a single photon going through complicated macroscopic device such as beam splitter and prism, and stays as single photon on detector.

Referring to photomultiplier tubes handbook from Hamamatsu Photonics, we find that single photon detection is not as simple as depicted in popular documentary movies. In my opinion, the existence of dark current and thermionic emission reduce credibility of single photon detection. Instead, they show electron detections from earlier stages of the dynode.

https://www.hamamatsu.com/resources/pdf/etd/PMT_handbook_v3aE.pdf

16

Physics, Astronomy & Cosmology / Re: Is it possible to define infinity?

« on: 15/11/2017 03:20:38 »

It's an interesting video by Vsauce showing different types of infinity.

17

General Science / Re: How can I stop static building up on my body?

« on: 04/07/2017 13:27:11 »

...
- Move to a climate with higher humidity.

Or maybe install a humidifier in your room.

18

Physics, Astronomy & Cosmology / Re: How are the results of the double slit experiment recorded?

« on: 03/07/2017 12:40:46 »

If we assume that light is stream of particles, just like Newton did, the occurence of light and dark bands on the screen is an unexpected result.
If we assume that light is a wave, akin to wave of water surface, then the unexpected result will show when the intensity is extremely low,  undetected by naked eye, hence requires very sensitive sensor, such as photomultiplier.

19

Physics, Astronomy & Cosmology / Re: How are the results of the double slit experiment recorded?

« on: 03/07/2017 12:34:05 »

In my topic https://www.thenakedscientists.com/forum/index.php?topic=66301.0
I show double slit experiment, which is just a special case of diffraction with four edges obstruction.

20

Physics, Astronomy & Cosmology / What is the effect on the moon's orbit of harvesting tidal energy?

« on: 19/05/2017 10:32:29 »

Harvesting energy from tides is known to make the Earth to rotate slower, but what is the effect on the moon's orbit? Measurements shows that the moon is moving away from Earth, but that means its potential energy is increasing?