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1,987,039 Views • Jun 15, 2023 • Click to toggle off description
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#light #quantum #astrum
photon energy, polarized lenses, double slit experiment, quantum
Views : 1,987,039
Genre: Education
Date of upload: Jun 15, 2023 ^^
Rating : 4.894 (1,326/48,645 LTDR)
RYD date created : 2024-05-06T22:29:48.459744Z
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YouTube Comments - 3,954 Comments
Top Comments of this video!! :3
The creepiest part of all this is what the delayed choice experiments seem to prove: reality not only waits to "decide" a particle's properties until an interaction takes place, it then retroactively rewrites past uncertainties so everything remains consistent. The universe is constantly error-checking itself with a mechanism not bound by the arrow of time the same way that we are. We're caught up in the current that flows from past to future, but information itself ripples out in both (all?) temporal directions.
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Have seen dozens of explanations of the two-slit experiment and every single time walked away unconvinced I actually understood it. Until this video. Top notch stuff as always.
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I heard ages ago that light always takes the shortest path between two points.
Refraction IIRC was caused by light slowing down in the medium of water but it bends in such a way that it still finds the quickest path to it's destination.
Gravitational lensing is caused by light taking the quickest possible route which still happens to be being bent in spacetime around a gravitational object.
This almost implies light knows it's destination.
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There's clearly more to light than meets the eye! 🙂 Excellent video, thanks.
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Just to be clear, photons (light) are not the only particles that behave this way through the double slit experiment. This has been demonstrated with electrons, neutrons, atoms, and even some molecules. Also, if you move those detectors right at the detection screen and leave them off until after the particle passes through the slits, but turn them on just before the particle hits the detector, you get the exact same results. This is mind blowing. It's almost like the particle goes back in time.
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That's exactly how I'd code light to behave if I were trying to program a universe simulator. Cuts down on the amount of calculations you have to do if you can get away with just being a wave of probability most of the time. No need to render something that isn't being used by the simulation.
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This is BY FAR the absolute best explenation video of this whole topic I have ever seen! Insane work!
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I’m not a complete idiot when it comes to this but very far from any advanced college level stuff. So for me personally, you described and animated the double slit experiment in a way that made it easier to completely grasp. So thanks for that! 👏🏼 also I’ve never heard of the experiment with the polar lenses. So amazing to think about and mind blowing! Keep up the good vids 👌
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It’s probably to save memory. In video games when you don’t look at stuff they render it with less detail or just don’t render it at all. If you quickly turn around sometimes they all ragdoll fall onto the ground, because the game didn’t save their positions and continue to render them. So maybe the universe is saving memory by not rendering anything until it’s observed.
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In one of my first lectures in my chemistry studies we learned that everything falls under this wave-particle duality (or quantum probabilities if you want to call it that), but the heavier it gets, the less likely it is to behave like a wave. So in theory, we humans could also walk through two doors at the same time and interfere with ourselves, though to be fair the probability is relatively small (:
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I’ve always understood the concept of the double slit experiment, but never really understood the implication. When you described observation as an interaction, everything fell into place in my mind. I have never heard it explained like that but it all makes so much more sense now.
Thank you for this video.
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One of my favourite shows! I read physics years ago and jumped to music- so now I’m catching up on physics. I listen to almost every single show there is! Amazing to be honest
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I always learn something new on your channel, but this episode was especially illuminating.
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I've watched approximately three million videos on this topic, and I think this one is the clearest I've seen. You're an excellent storyteller, and you communicate these complex experiments and their findings like a perfectly crafted story. It's brilliant.
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It sounds like light and water have a lot in common, just on a much smaller scale. I suspect that light, like water, is attracted to pretty much everything, which is why observing it would make a difference. If light photons, like water droplets are not actually an atomic unit, but rather a collection of attracted objects then it can move in a wave, or as long as nothing interferes with it, act like a particle.
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I went through the tumbler, had chills, my jaw dropped multiple times and I am in awe. This is better than magic.
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I've seen a bunch of videos about this and I can honestly say this one made it the easiest to understand I've ever seen. Great job guys.
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I love an educator who acknowledges the fact that we don't know the full picture. Paradoxically, it makes them more reputable in my eyes.
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Hi Alex. I just wanted to say how much I enjoy the enthusiasm you show in your videos. You enthusiasm comes through so clearly I can almost year you smile when talk. Thanks!
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@astrumspace
10 months ago
If you liked this, you may like my other video on the weirdness of quantum particles here: https://www.youtube.com/watch?v=6FPk3sLssPQ Also, thanks to Babbel for sponsoring today's video. Get 60% off your Babbel subscription: go.babbel.com/t?bsc=1200m60-youtube-astrum-jun-202…
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