[hamdani yusuf]

Let's not forget that double slits experiment is a special case of multiple edges diffraction experiments. In this case, the number of edges is four. The interference pattern produced here is like double wires experiment, which also has four edges.

I think most explanations we can find online are inadequate to account for observed effects in variations of multiple edges diffraction experiments.

The Original Double Slit Experiment

Light is so common that we rarely think about what it really is. But just over two hundred years ago, a groundbreaking experiment answered the question that had occupied physicists for centuries. Is light made up of waves or particles?

The experiment was conducted by Thomas Young and is known as Young's Double Slit Experiment. This famous experiment is actually a simplification of a series of experiments on light conducted by Young. In a completely darkened room, Young allowed a thin beam of sunlight to pass through an aperture on his window and onto two narrow, closely spaced openings (the double slit). This sunlight then cast a shadow onto the wall behind the apparatus. Young found that the light diffracted as it passed through the slits, and then interfered with itself, created a series of light and dark spots. Since the sunlight consists of all colours of the rainbow, these colours were also visible in the projected spots. Young concluded that light consist of waves and not particles since only waves were known to diffract and interfere in exactly the manner that light did in his experiment.

The way I have always seen this experiment performed is with a laser and a manufactured double slit but since the experiment was conducted in 1801 I have always thought that it should be possible to recreate the experiment using sunlight and household materials. That is basically what I did here. I will show the interference pattern I observed with my homemade double slit on 2Veritasium but I chose to use a manufactured double slit here to ensure that the pattern was impressive for observers at the beach.

[Zer0 (OP)]

@Yusuf

I have a few questions about the apparatus/instruments/devices used in the DSE.

Will you Help me in figuring out the Answers?

ps - totally fine if u can't.

What are the questions?

I would like to know the following...
Only concerning an Atom & Not Photons.

1) What is the Size of the Single Atom in DSE?

2) There are 2 Slits.
|A|  &  |B|
What is the |Size| of each slit?

3) What is the Size of the gap between both Slits?
|A|<--Size-->|B|

4) In a Sniper rifle, there is an aiming scope with Crosshairs.
(+)
The firing tube or discharging cylinder thru which the Atom is sent in the Direction of the Slits...it must be Aiming at a Specific point.

So where is or on what is the Crosshair aimed at?

Slit A?
|(+)|   |B|

Slit B?
|A|   |(+)|

Or Right in the Centre of A & B?
|A|  (+)  |B|

ps - i have a few more doubts, shall ask later on, Thanks!

[hamdani yusuf]

I never made the double slit experiment using particles. I only used light. So, what I'm going to write is not based on first hand experience.
1) The size of single atom can be found in the online periodic table. But I read that DSE has been done with large molecules such as C60, Buckminsterfullerene.
2) Some source require the size of the slits and the gap between them to have similar size as the wavelength, although experimentally, we can still get the interference pattern with the aperture size a thousand times larger than the wavelength.
3)ditto
4) Since the pattern is usually symmetrical, it's likely that the cross hair is aimed at the center, which is the gap between the slits. But it's not a sharpshooter, hence the bullets spread around the cross hair according to a statistical distribution.

[Zer0 (OP)]

3) Ditto means what?
&
You sure about point 4)?
DSE conducted with Molecules, Aiming right at the Centre gap of 2 Slits, should produce No Pattern.

Why do they deviate from a Straight path?
Isn't the experiment conducted in a Vacuum?
& What about Gravitational Fields & Static Charges, is Everything accounted for?

ps - What I'm trying to Understand but Failing...

If the ' Bullet ' is ' Aimed ' n fired,
Why does it " Miss the Target " ?

Is the ' Gun ' a Sniper rifle or a damm Shotgun?

[hamdani yusuf]

3) Ditto means what?
&
You sure about point 4)?
DSE conducted with Molecules, Aiming right at the Centre gap of 2 Slits, should produce No Pattern.

Why do they deviate from a Straight path?
Isn't the experiment conducted in a Vacuum?
& What about Gravitational Fields & Static Charges, is Everything accounted for?

ps - What I'm trying to Understand but Failing...

If the ' Bullet ' is ' Aimed ' n fired,
Why does it " Miss the Target " ?

Is the ' Gun ' a Sniper rifle or a damm Shotgun?

Same as above.

I think so.

I think it's called uncertainty.
Anything hotter than absolute zero are in state of motion.

[Zer0 (OP)]

Honestly...DSE has Alot of Uncertainties.

Right at the beginning of every video I've watched...
It is said, " We shall shoot a stream of Particles "  OR  " We shall emit one Particle at a time ".

Why are WE even calling or naming them as Particles?

Why not say or use the term
" Blobs " ?

ps - weirdly funny, the emitting rod is a blob, the slits are blobs, the detector screen blobs & we're blobs too!
(lol)

[hamdani yusuf]

Honestly...DSE has Alot of Uncertainties.

Right at the beginning of every video I've watched...
It is said, " We shall shoot a stream of Particles "  OR  " We shall emit one Particle at a time ".

Why are WE even calling or naming them as Particles?

Why not say or use the term
" Blobs " ?

ps - weirdly funny, the emitting rod is a blob, the slits are blobs, the detector screen blobs & we're blobs too!
(lol)

I think it came from historical context. Google Bard tells me.

A particle is a small localized object which can be described by several physical or chemical properties, such as volume, density, or mass. In the physical sciences, particles are the fundamental building blocks of matter and energy.

I think that using particle model to describe electromagnetic propagation has a lot of drawbacks. It doesn't seem to be localized, as I found out in my experiment with microwave attempting to measure the "size of photons".