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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.
Quote from: Zer0 on 20/07/2023 20:02:39@YusufI 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?
@YusufI 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.
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?
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)
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.