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315,923 Views • May 21, 2023 • Click to toggle off description
Go to sponsr.is/cs_drbenmiles and use code DRBENMILES to save 25% off today. Thanks to Curiosity Stream for sponsoring today’s video.
Most articles on the topic stop just after the reveal - gravity can turn into light, but don't explain how. If you're like me that wasn't quite enough to satisfy your curiosity, so I wanted to dig a bit deeper and try to understand what is actually being proposed here.
#breakthrough #gravity #light
0:00 Pop Science Articles Aren't Giving Me Answers
00:38 Physicists Find Gravity Can Create Light
1:14 Starting with a Big Bang
3:53 Ad Segment
5:07 What Happened during Cosmic Inflation
7:50 How Gravity Creates Light
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Views : 315,923
Genre: Science & Technology
Date of upload: May 21, 2023 ^^
Rating : 4.831 (364/8,242 LTDR)
RYD date created : 2024-04-24T18:42:13.791311Z
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YouTube Comments - 933 Comments
Top Comments of this video!! :3
There's an uncertainty in the title. It allows for the interpretation that the fundamental cause of existence of light resides in gravity, somehow. The presentation states that some processes related to gravitational waves can lead to generating photons, wich is a much weaker statement. It's kind of saying that turning the light on is the reason photons exist. :)
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Let me know what you think! And thanks to today's sponsor Curiosity Stream!
Go to sponsr.is/cs_drbenmiles and use code DRBENMILES to save 25% off today. Thanks to Curiosity Stream for sponsoring today’s video.
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This is the perfect level of abstraction for me, I think. Thanks for the great content.
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Correction.
Alan Guth inflationary theory proposes that the universe expanded in the inflationary period from a plank size to the size of a nugget, effectively in an expansion rate where 2 points separated at speed faster than light (not to the current size as said in this video).
Then from nugget size kept expanding but according to the standard big bang theory
Very nice video, I enjoyed the explanations and the animations, pretty cool 🙂👍
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In regards to Cherenkov radiation, The particles are not moving faster than light in a vacumm.
Cherenkov radiation results when a charged particle, most commonly an electron, travels through a dielectric medium with a speed greater than light's speed in that medium.
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07:00 "Two particles that were an atom's width apart before inflation would have been more than a thousand lighyears apart <after>." Even if the arithmetic per se may be sound, this is a bit confusing, and maybe even misleading. Since we are putting things in perspective, I take it the calculation is hypothetical, because, within the theoretical framework of inflation, there were no particles prior to inflation, and if there had been, the universe was so dense that no two particles could have been much more than a planck length apart. The width of an atom is between 1,000 and 10,000 times that of a proton, which is 10^20 times a planck length. (I'm disregarding the bewildering possibility that the universe might have been infinite already prior to inflation.)
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I've always figured the expansion wasn't so much about space extending outward, but rather inward. The so called "bang" was more like an implosion where the resolution of space increased. Like Planck scale increased, analogous to a centimeter growing more notches of measure, say 100x more notches yet within the same length of the original centimeter. So there same effect, kinda sorta, but with the understanding we still live inside a small singularity type sized space. That the space within grew, and that's a subtle difference. Purely speculative, off course, but it does help fit some of the vacuum energy conundrums this research paper attempts to tackle. I like this theory because it's a novel way to think about the topic.
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Interesting hypothesis but as others have posted very difficult if not impossible to determine if this is what actually happened.
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Well, gravity and light both move at the same speed so at least they have something in common.
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Amazing videos as always! Thank you!
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Since youtube created the "playback in feeds" feature, i usually watch all videos in my feeds only without opening them...... BUT this video made me open it..
Truly a masterpiece!
Just subscribed!
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Unifying gravity with the electromagnetic force would be absolutely world changing.
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Hey Dr. Ben Miles, your videos are amazing and you deserve more recognition. Can you please do a video on the recent discovery of the James Webb telescope that found a possible galaxy that formed only 1 billion years after the Big Bang. Not sure how accurate that is so don’t quote me. But I would be very interested.
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Dr Ben, I realize that as a science communicator you may choose from time to time to phase conjectures as fact to make the subject more approachable but I would remind you that causality even in theoretical works is invariant. In QFT a 'known ' particle can be assigned a field , but this does not apply for a 'unknown' particle as this creates a circular validation argument which cannot hold.
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Wait so gravity has particles? I thought ‘gravity,’ according to special relativity, was caused by an object being so massive that it ‘bends’ the lines of space time towards it?
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Gravity Light is better than Bud Light😂
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Gravity compresses aether particles which gives E =mc squared. Light is a high energy wave from the friction of 2 particles which are spinning at the speed of light being pushed together.
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I always think it funny that astrophysicists talk like it is certain they know what happened to the nearest billionth of a second at the start, then are now uncertain what happened during the next billion years or so. (Uncertain because of JWST' find of early galaxies.) I am not questioning it, just find somehow ironic.
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Time is fascinating. I worked the subway stations for nearly 10 years. From one end of the city to the other. Every so often I would notice the city would be saying that, "Today just flew by" or "The day was just dragging along." How can an entire city complain about the same time paradox unless it was effected by it. Maybe a time distorted bubble the earth passes through in its revolution around the sun. Maybe random waves of time distortion hitting the earth? Maybe they're randomly given off by the sun. Maybe they're from outside our Terran system and reach us in intervals. ???? Ti-i-i-ime, is on my side. Yes, it is!
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@DrD0000M
11 months ago
Nothing can be heavy if nothing is light.
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