Did you hear? 🚀 Scientists might have unlocked the secret to interstellar travel! They’re exploring advanced propulsion systems, like warp drives and light sails, which could make zooming between stars a reality. 🌌 One idea involves bending space-time to shorten the distance, while another uses laser-powered sails to push spacecraft to incredible speeds. These breakthroughs are still in the works, but the potential is huge—imagine visiting other star systems within a human lifetime! 🌠It’s all about combining physics, innovation, and some serious sci-fi dreams. Who knows? The future of space travel might be closer than we think! 🌟 Credit:
CC BY 4.0 https://creativecommons.org/licenses/by/4.0/:
Blueberry Bread Dough: by Terrie Simmons-Ehrhardt, https://skfb.ly/opoMP
Alcubierre Concept: by D_Dingo, https://skfb.ly/o9HKv
Space Exploration Vessel: by Vaportrash, https://skfb.ly/oCYtG
Alcubierre: by AllenMcC., CC BY-SA 3.0 https://creativecommons.org/licenses/by-sa/3.0/, CC BY-SA 2.0 https://creativecommons.org/licenses/by-sa/2.0/, https://commons.wikimedia.org/wiki/File:Alcubierre.png
Quantum tunnel effect: by Jubobroff, CC BY-SA 3.0 https://creativecommons.org/licenses/by-sa/3.0/, https://commons.wikimedia.org/wiki/File:Quantum_tunnel_effect_and_its_application_to_the_scanning_tunneling_microscope.ogv
NASA's Goddard Space Flight Center/J. Schnittman and B. Powell, https://svs.gsfc.nasa.gov/14576#media_group_374099
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This video is made for entertainment purposes. We do not make any warranties about the completeness, safety and reliability. Any action you take upon the information in this video is strictly at your own risk, and we will not be liable for any damages or losses. It is the viewer's responsibility to use judgement, care and precaution if you plan to replicate.
CC BY 4.0 https://creativecommons.org/licenses/by/4.0/:
Blueberry Bread Dough: by Terrie Simmons-Ehrhardt, https://skfb.ly/opoMP
Alcubierre Concept: by D_Dingo, https://skfb.ly/o9HKv
Space Exploration Vessel: by Vaportrash, https://skfb.ly/oCYtG
Alcubierre: by AllenMcC., CC BY-SA 3.0 https://creativecommons.org/licenses/by-sa/3.0/, CC BY-SA 2.0 https://creativecommons.org/licenses/by-sa/2.0/, https://commons.wikimedia.org/wiki/File:Alcubierre.png
Quantum tunnel effect: by Jubobroff, CC BY-SA 3.0 https://creativecommons.org/licenses/by-sa/3.0/, https://commons.wikimedia.org/wiki/File:Quantum_tunnel_effect_and_its_application_to_the_scanning_tunneling_microscope.ogv
NASA's Goddard Space Flight Center/J. Schnittman and B. Powell, https://svs.gsfc.nasa.gov/14576#media_group_374099
Animation is created by Bright Side.
----------------------------------------------------------------------------------------
Music from TheSoul Sound: https://thesoul-sound.com/
Check our Bright Side podcast on Spotify and leave a positive review! https://open.spotify.com/show/0hUkPxD34jRLrMrJux4VxV
Subscribe to Bright Side: https://goo.gl/rQTJZz
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Our Social Media:
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TikTok: https://www.tiktok.com/@brightside.official?lang=en
Telegram: https://t.me/bright_side_official
Stock materials (photos, footages and other):
https://www.depositphotos.com
https://www.shutterstock.com
https://www.eastnews.ru
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For more videos and articles visit:
http://www.brightside.me
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This video is made for entertainment purposes. We do not make any warranties about the completeness, safety and reliability. Any action you take upon the information in this video is strictly at your own risk, and we will not be liable for any damages or losses. It is the viewer's responsibility to use judgement, care and precaution if you plan to replicate.
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FunTranscript
00:00Alright, so our universe is four-dimensional.
00:04Three dimensions are for space, and one is for time.
00:07Now let's mix them together.
00:09Ah, we're getting a nice dough called space-time.
00:13This dough has one amazing feature.
00:16Even though you can't use it to bake a pie, you can bend and tear it.
00:20Now forget about our culinary analogy, we're going to space!
00:25Waves traveling through space-time can travel at speeds much greater than the speed of light.
00:30Now when it comes to propulsion, or simply put, moving forward, traveling through space
00:35by ejecting hot gas from the back of your spacecraft is not the most efficient approach.
00:42But a much more elegant way is to manipulate the fabric of space-time around your ship.
00:48That's how we get to the topic of the Alcubierre warp drive.
00:52So far it's just a hypothetical concept, but who knows, maybe in 10 or 20 decades we'll
00:58use this device to visit our relatives who have moved to the other side of the Milky
01:02Way.
01:03Anyway, the warp drive theoretically contracts the space-time in front of a spacecraft, simultaneously
01:11expanding the space-time behind it.
01:13It allows the ship to move from one point to another at an insanely fast speed.
01:19While the spacecraft would be distorting space-time, someone outside the ship's warp bubble would
01:24observe it moving faster than the speed of light.
01:27At the same time, if you were that lucky traveler inside the ship, you'd feel no acceleration
01:33whatsoever.
01:34If we could make such a superluminal warp drive a reality – superluminal, which is
01:40a fancy word to describe something faster than the speed of light – it would change
01:44our lives for good.
01:46It would enable us to travel all over our solar system and, perhaps, help us reach neighboring
01:51star systems as well.
01:52For example, we could get to Alpha Centauri, the closest to a star system located a bit
01:58more than 4 light-years away, within days or weeks instead of thousands of years.
02:04Unfortunately, I gotta quench your enthusiasm, my friend.
02:08The warp drive has a huge problem.
02:10The force behind its operation, which is called negative energy, involves pretty exotic particles.
02:17Even worse, they're completely hypothetical and, as far as we know, don't exist in our
02:22universe.
02:23Scientists have only managed to describe them in mathematical terms.
02:27These exotic particles behave in unexpected ways.
02:31For example, they have negative mass – boy, I wish I could pull such a trick after a big
02:35family dinner! – and they work in opposition to gravity.
02:40But wait, there's still some hope left!
02:42A new discovery might solve this seemingly unmovable roadblock.
02:47Researchers from New York City have envisioned a positive energy system that does not mess
02:52with the known laws of physics.
02:54The authors of the study claim that it's a game-changer and could be the first chapter
02:58in the manual for interstellar travel.
03:01You see, this positive energy makes all the difference.
03:05Now let's say you're an astronaut on a spacewalk and you decide to play tennis out
03:09there.
03:10So, you push the ball away from you.
03:13But instead of floating away, the ball pushes back.
03:16And this confrontation can continue to the point that it might take your hand off if
03:20you apply enough force.
03:22Now that's a quality of the negative energy the warp drive needs.
03:27But as you can see, there's no way to harness this energy, and it sounds rather dangerous.
03:32That's why we should probably turn to good old positive energy for the construction of
03:38the warp bubble.
03:39This bubble is a spherical structure surrounding a spacecraft using a shell of regular, albeit
03:45super-dense, matter.
03:47The bubble propels the spacecraft forward using the powerful gravity of the shell.
03:52But the passengers inside the ship don't feel any acceleration.
03:56An elevator ride is apparently more eventful than hurtling through space in such a bubble.
04:03All because of the immense density of the shell and the pressure it would exert on the
04:07interior if controlled properly.
04:10And since nothing can travel faster than the speed of light, according to the theory of
04:14general relativity, the bubble is designed in a way that those inside could experience
04:20normal time.
04:23At the same time, the bubble compresses the space-time in front of it and expands it behind
04:28the ship, just like that warp drive that uses negative energy.
04:32It allows it to ferry itself and the craft unbelievably fast.
04:36The walls of the bubble produce the necessary momentum, just like the momentum of balls
04:41rolling.
04:43If you decided to take up the task of controlling a warp bubble, it would require a great deal
04:48of coordination.
04:50Such bubbles need enormous amounts of matter and energy to keep passengers safe and maintain
04:55the correct passage of time.
04:57Plus, communication between people inside and outside the bubble would become super-distorted
05:03during the passage through the curvatures of warp space.
05:06Now, of course, there are still tons of problems researchers need to deal with before finally
05:12building a working warp drive.
05:14But some of them claim that the model should eventually get close to the speed of light.
05:19But even if it remains below the speed of light, it'll still be a great improvement
05:23compared to our today's technologies.
05:26Hey, see for yourself.
05:28Traveling at even half the speed of light to Alpha Centauri would take 9 years.
05:33In contrast, Voyager 1, which is currently traveling at 38,000 mph, would need around
05:3975,000 years to reach our neighboring star system.
05:44There are some more things to consider.
05:46As you approach the speed of light, things get really weird.
05:49For example, the faster an object moves, the greater its mass becomes.
05:54And this mass can increase infinitely, so that the object will need an infinite amount
05:59of energy to maintain its speed.
06:01Another issue?
06:02Current models allow a stable warp bubble only for a constant speed.
06:07But then, how are you supposed to accelerate at the beginning of your journey?
06:11And what should you do when you eventually need to slow down and stop?
06:16Experts claim that the process of the creation of the warp drive is like trying to figure
06:20out the concept of the automobile for the first time.
06:24We can compare the stage at which the warp drive technology is with the car technology
06:29at the end of the 19th century.
06:31At that time, automobile travel was possible, but it looked like a tricky process not everyone
06:37could deal with.
06:38Now, the whole warp drive idea is to stretch and squeeze space to zip around the Universe.
06:44Well, there's a theory that's even wilder.
06:47What if, instead of bending space-time, we just ripped it?
06:52Think about it like this.
06:54When you bend space-time, you still have to deal with all the stretching and compressing.
06:58It's like folding a paper map.
07:00You still have to drag your finger across the folds.
07:03But try ripping the paper in half and slapping the two ends together.
07:07Bam!
07:08You're already at your destination.
07:11So how can we rip space-time?
07:14We might not need to.
07:16Black holes may already be doing it.
07:18At the center of a black hole, gravity goes nuts, everything compresses into an infinitely
07:24small point, and time itself stops.
07:27This point, called a singularity, might be that very rip in space-time.
07:33And if you could ride your spaceship into a large enough black hole, gravity might be
07:37smooth enough for you to survive the journey.
07:40Maybe.
07:41And then, some scientists think you might pop out the other side of the Universe through
07:45a white hole.
07:47Okay.
07:48Now, another type of rip is called a wormhole.
07:51Unlike a black hole, wormholes have both an entrance and an exit.
07:55They're like a cosmic tunnel shortcut.
07:58If we could figure out how to find them, open them, and keep them from closing again, we
08:03could get the key to intergalactic travel.
08:07And now, get ready for a twist – quantum tunneling!
08:10Now, let's say you're playing a video game, and your character can magically walk
08:15through walls.
08:16It's kind of what particles do in quantum tunneling.
08:21Particles can tunnel through barriers, even if they don't have enough energy to go over
08:25them, thanks to their wavy quantum nature.
08:29But what if particles could quantum tunnel through connected wormholes?
08:34Instead of just sneaking through a wall, they'd be taking cosmic shortcuts through space-time,
08:39zipping from one part of the Universe to another instantly.
08:43In theory, this could open up totally new possibilities for how we understand the Universe
08:48and travel across it.
08:49That's it for today!
08:51So hey, if you pacified your curiosity, then give the video a like and share it with your
08:55friends!
08:56Or if you want more, just click on these videos and stay on the Bright Side!