Light Speed Travel

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The speed of light is more of a hot topic than ever nowadays. It is the speed at which photons travel in a vacuum- and is the fastest speed achievable within the universe. As creatures of exploration and innovation, understanding light speed has naturally led us on a quest to try and determine a method with which we can reach it, and eventually one day exceed it. Si-Fi fantasy or not, a galaxy of the Milky Way’s vastness would require such speeds to make exploring it somewhat of a possibility for a race such as humanity’s. But there are some drawbacks. The difficulty of developing light speed travel, or propulsion systems that could travel at a high percentage of it, is enormous- and may be impossible altogether. Furthermore, our current understanding of physics suggests that were you to travel at this immense speed, you would be making more of a sacrifice than you first anticipate, as light and time go hand in hand at the limit of possibility. Nonetheless, we are investing, investigating and innovating, and examining the skies and the stars, as we search for a way to travel at the ultimate speed of light…
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30 июл 2024

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Комментарии : 2,1 тыс.

@MrSpecify9 3 года назад

Light speed is too slow. We have to go... Ludicrous Speed!

@trentindo6465 3 года назад

No, they’ve gone Plaid!

@astirwirble4317 3 года назад

Heavy speed

@elliotdawkins5127 3 года назад

To the moon 🚀🚀🚀

@krishnaa9023 3 года назад

First try to go in the speed of your cat snd lets think about ludicrous speed

@platinum-or3y 3 года назад

Supersonic

@AUXdrone 5 лет назад

One of the coolest things is that due to time dilation, a photon can travel for billions of years but from the photon’s perspective, it happens instantaneously.

@marcinna8553 3 года назад

yes, that is very weird. From a photon's perspective, nothing ever happens,. There is no time, no distance, and all events are simultaneous. It is as if photons live in a world with fewer dimensions of time and space.

@alexcastro7339 3 года назад

Maybe there's a way to manipulate matter into behaving like photons. Or maybe finding a way to tunnel through spacetime. Not creating a wormhole, but to somehow dig though it as was we travel along in a spaceship.

@AUXdrone 3 года назад

@@alexcastro7339 so quantum tunneling? I mean yeah that would be cool as shit. Start working on that, dude. I have so distant planets to visit.

@marcinna8553 3 года назад

@@alexcastro7339 I think the fundamental principal here is simply whether you have mass or don't have mass. If you have mass and interact with the Higgs field you cannot travel at the speed of light. If you don't have mass you can only travel at the speed of light. Our current understanding of physics would not allow matter to behave like a photon.

@subReme 3 года назад

@@marcinna8553 it doesn't make any sense, something is not right.

@thealphajourney6108 3 года назад

I cant ever wrap my head around the distance traveled in a light year. Even 1 year at light speed is an incredible distance. Then we get into thousands and millions of light YEARS. The Universe is truly amazing.

@flooodo 2 года назад

How about the fact that the universe is infinite

@bowedbat 2 года назад

@@flooodo We don’t know this.

@flooodo 2 года назад

@@bowedbat youre right but it probably is

@bowedbat 2 года назад

@@flooodo Meh, really impossible to know currently my guy. Hopefully Hubble will afford us better understanding.

@kzdcs9574 2 года назад

@@bowedbat I think you mean James Webb

@YogSoth Год назад

It’s cool to look back at this video now. SEA, while always great, has raised his game to an entirely different level over the past couple years. Nice to see a creator evolve.

@scottwill6498 5 лет назад

Imagine the jet lag on a 5.8 trillion mile flight

@DanielDogeanu 4 года назад

It would be so bad, that everyone you ever knew and loved, died a really, really long time ago. 🤣

@Andy-in8ej 4 года назад

Only one day at TSOL

@legendarypussydestroyer6943 3 года назад

@@DanielDogeanu not really, 5.8 trillion miles is a light year, meaning if you were to travel at 80% the speed of light, you'll reach that distance in 7 months from ur perspective. From Earth's perspective, only 1.25 years has gone by, not a big deal.

@saucyiwnl 3 года назад

@@legendarypussydestroyer6943 true ur sense of time would be prolly all over the place

@opmike343 3 года назад

@@legendarypussydestroyer6943 Time debt.

@hoopschoop3339 3 года назад

I always figured if we EVER get into interstellar travel, we would just have to find a way to skip the distance entirely. Lightspeed is too slow, and too much trouble to get there anyway.

@AD-kv9kj Год назад

The best estimates of energy required to bend space-time at all, let alone enough to "warp" to vastly distant solar systems, is insane and would not only be impossible to generate or contain, but even if it was, the use of such powerful energy would be completely immoral. One accident would destroy (in the last estimates I read) thousands of solar systems in the surrounding galaxy. I love science and am all for space exploration wherever possible and to some reasonable level of safety, but I really think all these ideas of humanity jaunting around the galaxy are simply not possible. Not everything is possible, and that's ok. I actually have a weird kind of feeling that the universe has some sort of fundamental rules that ultimately prevent any technological species from interfering with other worlds or having the capability of potentially destroying vast arenas of existence.

@YaBoiSnek Год назад

@A D i mean, even traveling at half light speed it would take a relatively miniscule amount of time compared to the age of the universe for a species to colonize large areas of the galaxy. I guess the only thing really stopping a given species from traveling the stars, assuming they have the technology, is how determined they are to do it and how long they're willing to wait.

@adamhughes4442 4 месяца назад

"Just have to find a way" Problem solved...!!!

@pineappleginseng1557 5 лет назад

I just had a hypothetical scenario: News in the year 2094: "We launch new spacecraft with 20 crewmembers to Proxima Centauri! Trip will take 200 years!" News in the year 2294: "Crewmembers' descendants arrive at Proxima Centauri 100 years after first humans get there!" Crewmembers: "Wtf" Colony: "We made something better while you were en-route"

@cappuccino-1721 5 лет назад

Lol

@rickporras385 5 лет назад

It’s called the “wait calculation”. Look it up

@pineappleginseng1557 5 лет назад

@@rickporras385 Thanks for pointing this out to me. It's actually an interesting read.

@r-mackphotography6424 4 года назад

This twisted my head.... now I won’t sleep tonight lol

@Deadlyish 4 года назад

That's the backstory of a character from the old Guardians of the Galaxy comics

@ChickSage 5 лет назад

You got to the heart of the main problem, at about three and a half minutes in, when you describe photons. The faster something goes, the heavier it gets. Photons are massless, but they travel so fast that it actually allows gravity to effect them. In other words, the reason light travels so fast is because it has no mass. Aparently, even if you could make something that has mass, move at the speed of light, you'd have to be insane to actually do it. I remember reading somewhere that if a ship traveling at 1/3rd the speed of light were to be hit a tiny speck of dust, it would release more energy than a nuclear explosion.. BAM! Hell, you can't get anywhere at that speed anyway, everything is too damn far away :( We need to figure out how to teleport ourselves, like subatomic particles do :) thanks for the video

@yurinamaekawa7250 2 года назад

I'm two years late, but wanted to add that rather than photons having zero mass, they have zero "rest" mass

@jeffo2112 2 года назад

We are missing something for sure.We CANNOT fly through any interstellar or stellar space at A useful speed as you said. One peddle the size of A fingernail would cut your trip real short. I wonder if different dimensions are real, if so they may hold some of secrets to jumping around our Galaxy and or others. Ive heard it said A couple times that Atomic detonations reach through and cause damage in other Dimensions hmmm.

@ChickSage 2 года назад

@@yurinamaekawa7250 thank you

@1q2w3e4r5t6zism 2 года назад

Robots will explore space.

@adraedin 2 года назад

@@1q2w3e4r5t6zism Entropy affects everything... even (sentient) robots would be subject to the laws of physics. Moving parts break down eventually, fuel or energy to run said robots will be required, waste from the robots will be produced, space will be limited, resources will be limited, time will be limited, (sentient) robots will strive for "more" - all of these things are what biological life has to endure. There really won't be much difference in the ultimate goals of people exploring compared to robots exploring - they'd both want to explore and see what's out there in the universe.

@sammysam2615 5 лет назад

SEA never fails to provide great videos. Keep them coming

@willimo8565 5 лет назад

Man, when the fastest speed in the universe is'int fast enough!

@joshuamedina7292 5 лет назад

The universe is expanding at a faster than light speed so light speed is not the fastest speed. It's not arguable it's proven there are countless galaxies moving away from us at a faster than light speed as we speak the "edges" of our universe is not the actual edge but just the visible extent of witch we can see aka the extent of witch light can still reach us

@johnk6598 4 года назад

Joshua Medina they’re not traveling faster than light. Space is expanding. There’s a difference.

@joshuamedina7292 4 года назад

@@johnk6598 they who i never mentioned anyone, and yes space expanding but the things inside space is also moving within it and it's getting faster and faster with no limit thus far. So what was your point again???

@givenchie462 4 года назад

Joshua Medina nothing of mass can naturally move the speed of light

@joshuamedina7292 4 года назад

@@givenchie462 you can tell that to all them super Geniuses that say otherwise. Good luck with that

@Norguosanow- 3 года назад

I love science. The thought.. The imagination of there being something bigger than we could ever comprehend whilst also full of puzzles that we have yet to fully understand. Love it

@MrJoker42369 3 года назад

This has got to be the best channel on YT. No science/space documentaries/series have ever come close to this sort of content, explanation nor graphics.

@indiv3250 5 лет назад

glad to see you’re back to making videos, these topics are always interesting and editing/scriptwriting is really well done :)

@DoubleD19788 3 года назад

We are not alone in this Universe, yet we are alone due to distance.

@christianknuchel 3 года назад

I wanted to bring up that, even if we happened to have that TV-trope-y hostile sci-fi encounter, if it's all sublight, we'd have plenty of time to turn the table, or to just make peace before it's all broken. Even though the speed issue also applies to that, it's kinda scary to think how things like strange quarks could be weaponized if such a war were to actually break out. ^^"

@chrishernandez3473 3 года назад

This is the primary reason why I don't believe we have ever been visited by any alien spacecraft.

@theadversarylight-bringing6980 3 года назад

Well put.

@FitzgeraldStanburyWeissV 2 года назад

We may very well be alone. But, whether or not we are, we will probably never know... unless we get taken over by an alien race.

@petertimowreef9085 2 года назад

One thing SEA videos have taught me is that we're not only stuck in a bubble of space, but in a bubble of time as well.

@awsumguy-bh9pz 3 года назад

"the faster something goes, the more weight it gains" that one obese kid:

@stanimatorblue 3 года назад

Unless it phases its energy out of the 3rd dimension to a higher dimension where the physics change.

@Mr_AlcoN 5 лет назад

Just amazing SEA! Can't figure out how in earth I've could have missed your channel until couple of days ago. Think I've looked through most of the science channels on YT now and yours is one of the best, hands down! 👍 All the best to you!

@Spagghetii 4 года назад

The one cool thing about traveling the speed of light is that its instantaneous for the traveler, the downside is how to stop your spacecraft at the destination if you have no way of measuring time or interacting with the physical universe.

@RemixedVoice 5 лет назад

I believe the only way a civilization can explore the universe is through machines and AI. Biological life forms are just too fragile.

@sheepketchup9059 5 лет назад

i agree on this one too actually

@aston452 5 лет назад

Wow you are left wing as fuck embarrassing

@bigcauc7530 5 лет назад

@@aston452 what the fuck are you bitching about?

@chinito77 5 лет назад

The final evolution of humans will be that of a mechanical being with human thoughts. So basically, as we begin to prolong our life with artificial parts, we will one day sacrifice our flesh based bodies for something that does not age.

@bearup1612 5 лет назад

@@aston452 Please name the person your replying to.

@Nomadmandude 3 года назад

I love this channel. I can't stop watching. Great writing. Great amount of information.

@austinarzylcharlzm.mandin1207 5 лет назад

Nice. Keep up the good work with these space videos. These videos are better than your notifications. Quality over Quantity.

@Devendra95 5 лет назад

I don’t normally comment on videos but damn this was very well put together. Great job! 👏🏽

@zdude731 5 лет назад

I haven’t watched any other of your videos other that your gd ones when i found you about a month and a half ago. But now i have a reason to look at all your content. And not to mention your REALLY satisfying voice to hear. Keep up the good content👌🏻

@sea_space 5 лет назад

💙

@halcyongeezer 3 года назад

Thanks for being so educational and entertaining. Can't wait your videos appear on DVD, Netflix, BBC - the future David Attenborough of Space Science. Also looking forward to the video "All about SEA" - who is he, where is he, how did he become so addictive? Keep up the fantastic work, SEA.

@clark1066 3 года назад

This is the first video I’ve ever watched that described time dilation in a way that I can actually understand. Thank you

@baronvonhoughton 3 года назад

Did you mean can?

@clark1066 3 года назад

@@baronvonhoughton Yup

@GainingDespair 5 лет назад

Every time I hear people talk about light speed travel I can't help but to wonder how we could ever do this in any manner, far to many problems to address and if anything you would still hit debris in space.. It's everywhere you could not reasonably avoid most of it, and at such speeds the impact would be insane with enough force to destroy any space ship with absolutely no chance to react in real time. You need light to see and radar will be no help at all at such speeds best case your radar waves are traveling at the speed of light and not falling behind you since you out run it. It would never have a chance to pass ahead of the ship to preform it's job light also has the same problem. We would need a completely clear straight line of sight path to any object we wanted to travel to.. that would require a divine miracle.. so realistically you are traveling towards something at such speeds any debris of any size could easily be fatal to the ship. (literally wrote this within seconds of mentioning debris) Enjoy flying completely blind, we would also have a problem slowing down just as it would take infinite energy to reach light speed it would also require infinite energy to come to a stop. You couldn't come to a complete stop as the force would just kill everyone and the ship would be torn apart, you would need to slowly speed up to light speed over the course of years and the same time would also be required to come to a stop. There is no drag in space or resistance so you would relatively keep to what ever speed you achieved, the only real viable way to slow down without infinite energy would be to use a stars gravitational pull. Even if we could find a star with enough mass to slow us down when traveling at light speed we would never be able to break from it's pull.

@davidrenton Год назад

"it would take infinite energy to reach light speed it would also require infinite energy to come to a stop" well you solved your own problem, you already have infinite energy to get going, so you have some more in the infinite energy gas tank to stop

@JKTProductionzIncNCo 6 месяцев назад

@@davidrenton Yea just like Chuck Norris counted to infinity... twice on a Sunday afternoon.

@seldenification 4 года назад

Absolutely love your content. Thank you for everything you do.

@JustinLHopkins 4 года назад

Pessimists also said the first Ford car went too fast and would kill people. They said breaking the sound barrier was impossible and flight was just another kooky idea. We’re bound to the limits of current technology and many people simply believe this is it or they’re too unimaginative to think forward. What was once thought impossible 100 years ago is commonplace today. We’ve overcome most problems throughout our 100+ thousand years of existence and I can’t see that stopping anytime soon.

@andrewpotapenkoff7723 5 лет назад

I subscribed to this channel only because of these space videos. Very well done.

@davidczajkowski5956 4 года назад

First we had coal and there was no way we could find enough energy to travel out of the atmosphere, now gas and there’s no way to travel past mars...unless we use solar sails which are already being looked at. Next we’ll develop miniature black holes in the new colliders we are building or we’ll learn to create and store large amounts of antimatter. Then we’ll learn what dark energy is and how it stretches space. Then we’ll learn how to use it for travel. Yes warp drive is protmore than 500+ years in the future. But the only reason it’s seems unobtainable is because we haven’t answered certain questions yet so we can ask the next questions we don’t even know we’ll be asking.

@thinkingmachine354 4 года назад

That's assuming our civilization and society can make it that far. Tbh I think we will be stuck here. Not a bad thing.

@craigmichaelcurtice3013 4 года назад

@@thinkingmachine354 so right, it's almost time for the 13000 year sun micronova who's going to be left after that

@altar8010 4 года назад

I think the dark energy will be the energy becuz it can make the entire universe expand faster than the light but it will maybe require more than quintillion of them

@jasonking1284 3 года назад

I think warp drive will be discovered within the next 200 years.. maybe 100.

@Immashift 3 года назад

That's just it. Every new discovery raises the horizon. It's possible there's a limit to technology. But humanity is as curious as it is stupid. We discover uranium, and the first thing we do is figure out how big a bang it can make, on our own planet no less. But then we figure out you can get a stupid amount of energy from it, and so we power a good chunk of civilization with it. The same will happen with sustained fusion. Who's to say the next time we raise the bar it won't be something like antimatter or bending spacetime. The only thing that slightly concerns me is that we'll cock it up and suddenly half the planet will appear halfway across the visible universe without any idea how it got there because some scientist literally stumbled across the way to make an artificial wormhole or something. I mean we used to use x-rays to check how shoes fit your feet because we thought that was really neat, right up until someone realized it also gives you cancer. Maybe the aliens or God or whatever gave us all this stuff to work with, just to sit back and see how long it would take us to make an oof so big it finally wipes us all out.

@johnmarr5316 3 года назад

For the first time in all the years that I've been trying to understand the idea of time dilation, I actually almost understood it!!! I think I'll watch this again a couple of times and I'll get it. Thanks dude, you've been able to explain something so elusive (to me) in a way which makes it quite simple.

@tuomash.5724 4 года назад

Didn't even watch the video. Just listened. Such a charismatic voice.

@dragoda Год назад

Saw a documentary on travel to nearby stars. One ship left earth and the journey lasted 4000 years. After 2000 years humanity developed even a faster travel. When the ship reached the planet, it was populated by humans. Why is that? Because the second ship, developed after 2000 years, surpassed the first ship that left Earth and they get there faster.

@TheExoplanetsChannel 5 лет назад

Great video! Scientists are working on a probe that can theoretically come very close to the speed of light. *NanoFET* , which stands for Nano-particle field extraction thruster, is an experimental engine under development by the University of Michigan. The thruster *creates electric fields* that charge and accelerate carbon nanotubes, which are molecules of carbon. These *particles are expelled out of the probe* consequently pushing it in the opposite direction. With this method, the probe could achieve *90% the speed of light*

@RemixedVoice 5 лет назад

That sounds incredibly promising!! But, I think we should take all precautions to try to avoid a resonance cascade scenario....

@SubhanKhan-lm9eo 5 лет назад

Ye but even hitting a little stone in space at that speed 😬 things can get ugly 😅

@ThisNoName 5 лет назад

At 90% speed of light, you are not going anywhere.

@SubhanKhan-lm9eo 5 лет назад

@@ThisNoName Yes you are you could reach proxima centauri in around 10 years or less and get a signal in 4 years that's amazing for something like that

@BobBob-vc4bt 5 лет назад

Means nothing in a universe 90 billion light years across.

@dashinking 5 лет назад

at the speed of light by dimrain47

@theemeraldboat9947 5 лет назад

[TO] DashinKing111 you beat me to it

@silentkaisei 5 лет назад

IKR I can't believe SEA forgot that dimrain47 already went at the speed of light

@silentkaisei 5 лет назад

@@aetaetaetaetae yeah I got the shittiest puns ever

@GMFan 5 лет назад

GOD DAMNIT XD

@Qortexgd 5 лет назад

This is fun👍 like for you

@johnvillanueva2591 5 лет назад

Imagine hitting a planet or asteroid on ur path at the speed of light, quick oof

@Danster547 5 лет назад

Sugar High Haha extra quick oof

@LordMall 5 лет назад

You cannot. At the speed of light, time will stop completely and you'll turn into a black hole.

@georgewashingtoniv9162 5 лет назад

It doesn't matter, the spaceship wouldn't be able to withstand light speed travel anyways.

@militantpeace2052 5 лет назад

He would probably exit the entire universe without the proper braking

@jakephilipak3363 5 лет назад

Darth Caedus Only if something has mass. For a photon, traveling would actually take zero time for any distances. It would only be for an outside observer that light would actually take time for any traveled distances.

@johnpmilheiser5991 5 лет назад

Propelling a space vessel faster than light speed 1st, we need to have a 10 to 20 foot diameter pipe line, formed into a 5 to 10 mile in diameter circle or donut shape. 2nd, there would need to be independently powered electromagnetic coils wrapped around the pipe which would be evenly spaced. 3rd, we would need to build a bullet shaped space vessel made of a ferrous metal alloy with its own electromagnetic pulse generator The vessel would need to travel around through the pipeline several times until it got up to light speed. Once the vessel reaches light speed it can be released into a straight tube that is pointed in the direction we wanted the vessel to go. This can be accomplished by each electromagnet producing a magnetic pulse which will propel the vessel forward and just beyond the next electromagnet which will fire the next magnetic pulse. As the accelerator’s electromagnetic pulse occurs so does the magnetic pulse generator in the vessel In Phase 1, each accelerator’s electromagnetic needs to pulse to gets the vessel to maximum potential In Phase 2, every other electromagnet in the accelerator needs to pulse to get the vessel to to its next maximum potential velocity. In phase 3 every third electromagnet needs to pulse to get the vessel to its next maximum potential velocity. In Phase 4 each forth electromagnet needs to pulse to get the vessel to its next maximum potential which is limited only by its structural integrity. Structural integrity can be increased by jelling the inside of the ship.

@bryanpan8172 5 лет назад

oh my god i forgot all about this channel when i quit gd and then i saw this amazing video sea!

@randymiller7788 5 лет назад

Sounds like we are left to watch Star Trek re-runs

@DAVHORNER 5 лет назад

Really enjoyed this - thorough, detailed work Patrick Moore would have approved. I would add that PBS Spacetime also go into the use of available technologies and 'to be' tech (Dyson Probes) arrive at different conclusions in terms of galaxy exploration, estimates that the Milky Way could have been completely explored in as little as 20 million years. Worth checking out too.

@TheNoodlyAppendage 4 года назад

13:30 Because professional physicists are too preoccupied with finding new virtual particles and they suck up all the research dollars. Meanwhile the engineering side of things got completely defunded in the early 90's with the collapse of the soviet union and subsequent end of the cold war. e.g. work on ION engines which had fully working laboratory models completely ceased and Hall effect devices became the norm, but Hall effect has limits, where ION engines could boast Isp's several orders of magnitude greater. Again, WE ALREADY HAD WORKING ENGINES, btu there was no money to build production models. So yes, Physics is actually holding back technological progress.

@markmartin2819 3 года назад

Agree completely

@thePeterpumpkin68 5 лет назад

Space is an unimaginably big place. To truly explore the universe and beyond in any sensible time frame, you gonna need silly unobtainable speeds. To even travel to Andromeda within a couple hours, you need to travel at least 1.25 million light years an HOUR!.....so looks like we ain't going anywhere, anytime soon.

@slayingdeathgaming5537 5 лет назад

If you were to travel at light speed you can traverse any part of the universe in a instant relative to you. To a outside observer it would take you the time light travels to reach said destination, assuming that you have a infinite amount of energy, and could brake instantly.

@bvbinsane1vanity 4 года назад

@Steven Baal 20 years at light speed would mean the Andromeda galaxy is only 20 light years away...Its 2.5 million light years away. At light speed it would take 2.5 million years...not 20....

@ferrallezz5246 4 года назад

Your_Doppelganger Well. Andromeda is farer a way than I thought.

@Fermion. 4 года назад

That is if you're stuck thinking that the only way to get from place to place is a straight line. You're trying to solve future problems with modern day thinking and tech. That'll never work. It's like a caveman trying to figure out how to cross an ocean with their limited understanding and tech. Science has proven that spacetime can be bent. So it stands to reason that the obvious method of interstellar travel will be somehow manipulating that feature of spacetime, instead of trying to just fly there in a straight line, wouldn't you say?

@tluv6921 4 года назад

That’s fine. The kraken maybe there anyway.

@DardS8Br 5 лет назад

Tapped as you as the notification came. BTW I’ve been subbed since your first voiced G-News

@DardS8Br 5 лет назад

Holy crap you hearted me

@TrumpImmortal 5 лет назад

If we have reached the limits of technology we had better start preparing for the reaper invasion.

@zinj2618 5 лет назад

someone give Commander Shepard a call

@TrumpImmortal 5 лет назад

@@zinj2618 only if it's femshep.

@allenmcknight4079 5 лет назад

Yes!

@commandershepard5636 3 года назад

@@zinj2618 bonjour

@googoogjoobgoogoogjoob 3 года назад

The sad thing is that even SOL travel, impossible as it is, just wouldn't be enough. Conceptually, we've been let down by the sluggishness of the photon.

@cippi2384 3 года назад

goo goo g'joob

@lt5444 3 года назад

goo goo g'joob

@ajminadhimi8985 3 года назад

goo goo g'joob

@CeezGeez 2 года назад

goo goo g'joob

@GianFr3E 2 года назад

goo goo g'joob

@zerofox1551 5 лет назад

Remember when the sound barrier was a barrier?

@marxk4rl 5 лет назад

The speed limit in the universe is actually the speed of causality, not the speed of a photon. Incidentally, as we know by now, the light has the same speed as causality, so it's called the speed of light. Further research might found that the speed of causality is higher than the speed of light. Entangled particles is one example. Or tachyon, a hypothetical particle that moves faster than light.

@LaborHours 5 лет назад

Ordinary matter cannot reach the speed of light because it gains mass as it approaches C. Is it just me or does gaining mass just by going faster seem like a strange thing to happen?

@systematic101 5 лет назад

@@LaborHours Not really. The mass gained is the energy added to the object to get it to that speed.

@LaborHours 5 лет назад

@@systematic101 I thought the energy gained was called kinetic energy which is measured as mass times velocity squared. So what amount of the energy is measured as mass and how exactly is the energy converted into mass?

@systematic101 5 лет назад

@@LaborHours Kinetic energy is calculated as 0.5mv^2. You can then use E=mC^2 to convert that energy into mass. For example; a 1Kg object travelling at 50% the speed of light would have about 1.125 x10^16 joules of energy. That kinetic energy alone would be 0.125 Kg of mass. This is only the kinetic energy and does not account for any other forms of energy in the object. If you look at the rate the mass energy increases just for kinetic energy related to the rate of speed increase you'll notice it gains mass faster than velocity. At about 99% of C the mass of the kinetic energy jumps up from 0.125Kg to 0.50Kg even though the velocity has only doubled. Keep in mind this is a sustained velocity and not acceleration. Acceleration is an energy hog. Accelerating from 50% C to 51% C will take more energy than it took to go from 49% C to 50% C. This is directly related to the fact the mass has increased faster than velocity. More mass requires more energy. It's actually more complicated than this but this was one of the easiest ways I could explain it.

@deanfawcett2085 3 года назад

It's an awesomely massive amount of sheer space to simply look at if we are unable to ever explore it in person. It seems to me that there will (have to) be another Newton or Einstein to give us the mathematical means to describe the universe and provide us the ability to visit other star systems.

@xSmoKinGun 5 лет назад

This wasnt just a YT video. This was a personal quest and very emotional.

@dichaelovic 2 года назад

I swear this is the greatest channel for background sound for gaming or study.

@DanielLopez-ob9jz 5 лет назад

What's scary about the universe is that lightspeed if were talking about how we perceive time is pretty slow if you wanna travel across the universe.

@CountSacke 5 лет назад

If you're the one who is traveling at a speed approaching light speed or even if you where accelerating, time would appear to pass as normal. 1 second would still be 1 second no matter what, so you don't actually feel like you're slowing down, it only appears to be that way from an outside observer who is not moving.

@sleuth2077 5 лет назад

@@CountSacke I think he means that even at light speed, you won't get very far, bc distances are so vast in the universe.

@CountSacke 5 лет назад

sleuth 2077 Well comic travel technically is impossible beyond the local group (our Milky Way Galaxy along with Andromeda and a few other galaxies), because of the expansion of the universe. The expansion would stretch the wavelength of light soo much that it wouldn’t even be visible anymore and yes light is slow in comparison with distances on the cosmic scale.

@slayingdeathgaming5537 5 лет назад

If you were to travel at light speed you can traverse any part of the universe in a instant relative to you. To a outside observer it would take you the time light travels to reach said destination.

@ChickSage 5 лет назад

If one could achieve a 99% of the speed of light, one could travel to Alpha Centauri 4.37 light years away and only age about 6 months, if memory serves me correctly. Objects with mass can't travel at the speed of light.

@metaparcel 5 лет назад

My opinion is that we will most likely focus on the manipulation of space itself to travel vast distances in short amounts of the time. Just thinking logically, even if we were progressing on light speed travel we will still know that no matter how fast we go, we will know the limit of our efforts. I think that our efforts will inevitably lead to space manipulation. Sort of like materialization from one point to another point. This is probably hundreds of thousands of years in the future but it just seems to make sense. Linear travel, to me, was never made for interstellar space.

@cosmoslogic9088 5 лет назад

Very well said my friend, anti gravity will play a big part in speed of the cosmos, along with a lot of other factors.

@porrasm 5 лет назад

So basically teleportation? That would still have the limit of light speed because the energy (or information) would have to travel from a to b. Unless of course we find a way to use wormholes and feed the energy through them.

@AuroraDarkStar 4 года назад

@@porrasm consider quantum entanglement. It's effects are considered instantaneous across any distance. The future is full of exciting possibilities

@MrDjpappu 5 лет назад

Great work.. this is what I was looking for so far on youtube..

@sagesheahan6732 Год назад

Even if it's effectively fictional, the very concept of warp drive is endlessly fascinating and badass to me.

@sol.ringen 3 года назад

13:14 im not sure if consulting doctors for this is the best idea 😂 i would try physicists

@michaeldriggers7681 4 года назад

13:15 "most physicians argree" did you mean physicists agree?

@aogwaro 4 года назад

Gah. I was hoping i wasn't the only one who heard that!

@dillon5155 4 года назад

Most physicians agree light speed travel is hazardous to your health.

@justicevanpool9025 4 года назад

he does make a few mistakes in his delivery that he could easily correct

@Just.A.T-Rex 4 года назад

I think he’s referring to doctors when speaking about our bodies. They’d agree that it’d be dangerous to our physical bodies.

@mrkiky 4 года назад

Most accountants agree that light speed travel is detrimental to your wallet.

@primegoat 4 года назад

According to relativity, you need an infinite amount of energy to propel anything with mass to light speed. The closer to light speed it gets, the more massive it becomes, the more energy it needs to go faster, making actually reaching the speed impossible. However, when a theory yields infinities it's usually a sign of the theory's limitation. There actually ARE ways to make at least some massive particles reach light speed, but it wouldn't be practical. For example, at high enough temperatures (15 trillion degrees if I remember correctly), W and Z bosons, which are the force carriers for the weak nuclear force, stop interacting with the Higgs field, which makes them become massless, which automatically brings them to light speed. This happened during the electroweak era of the universe, when the electromagnetic force and the weak nuclear force were merged into one force. So one way to think of that is that if you move with enough energy, you lose your mass and reach light speed. This would destroy anything, however, so there's no way to build a spaceship that can withstand 15 trillion degrees. That's hotter than a supernova. One proposed method to travel at or faster than light speed is to bypass the speed limit altogether. As the video mentioned, the universe expands faster than light. This is possible because the speed limit only applies to objects within spacetime. The fabric of spacetime itself isn't limited by this speed, which is what allows it to expand faster than light. So the idea is to warp spacetime while essentially staying still. The Alcubierre drive is a proposed propulsion system that stretches and squeezes the spacetime around you, allowing you to change location without actually moving. The spaceship would exist stationary inside a bubble of spacetime that would warp its way to its destination. This warp drive is a long way off, if even possible. Calculations show that though technically the laws of physics can allow for this to happen, the temperature inside the bubble would become hotter than the core of a star, which would easily destroy the spaceship. Also, even if the laws of physics allow for something like this to occur, and even if the temperature problem can somehow be dealt with, that doesn't mean that it's technologically possible to build something that would do this. The amount of energy required to create such a warp bubble may be impossible to create.

@peterboyer9622 2 года назад

Thank you for this!

@DodgerJim 5 лет назад

i LOVE THIS CHANNEL! GETS MY SCIENCE GEEK ON! NEW SUB!

@timmbrockmann959 5 лет назад

20:30 I guess the light speed space ship would come with an automatic time dilation correction module ;)

@GMFan 5 лет назад

It’s a miracle! Sea actually posted a video

@d0nk_ 5 лет назад

He posted last week

@GMFan 5 лет назад

TheCyberDonkey r/woooooooooosh

@helleboreofficial4692 5 лет назад

@@GMFan yee

@pebble312 5 лет назад

@@GMFan it physically hurts me every time i see someone say r/woosh

@GMFan 5 лет назад

Pebble r/woooosh

@TrueCicero 4 года назад

Love your videos! I’m surprised you didn’t mention the Alcubierre drive here.

@Pillokun 5 лет назад

From what I remember about this topic from my studies is that photons at light speed do not experience time nor space, the moment they come about is also the moment they arrive at the destination even if the journey was million of years long. Same thing would obviously apply to people traveling at light speed. The moment they would engage the light speed they would arrive at their destination even if for outside observers the journey was 1000 of years long. How would we go about to construct control mechanism that can turn of the light speed when nor time nor space as we know it exists for at light speed.

@Qortexgd 5 лет назад

When your mom says RU-vid doesn't teach you anything, you show her this video

@MeBallerman 5 лет назад

Except that: 7:31 700.000 km/h is NOT "0,7 % of lightspeed" - it is 0.07% of light speed. One tenth of what vid falsely claims. And I am the only one two spot this error??? I saw it IMMEDIATELY. Not that I'm the greatest mathematician around - I just instantly knew that man is not capable of achieving 0.7 % light speed. WHAT I thought. NO way. One tenth of that maybe, if that solar probe works. The light speed is roughly 1.000.000.000 km/h - 10 % is 100.000.000 km/h - 1% is 10.000.000 km/h - 0.1 % is 1.000.000 km/h - 0.01 % is 100.000 km/h - therefore 0.07 % is 700.000 km/h... You are welcome.

@taylorryan6043 5 лет назад

@@MeBallerman thanks father

@eval_is_evil 4 года назад

I hope not... this video is not a good tool to learn

@eval_is_evil 4 года назад

@@taylorryan6043 but it's true. Math demands precision.

@quacky2733 5 лет назад

ur videos still amazing

@dickmartn 5 лет назад

Beyond light speed is fact. Quantum entanglement proves that.

@Omegatonboom 3 года назад

At first when I click, I look at the runtime and I get a little nervous. I think I might not be able to get through the whole video. but before I know it I'm just enchanted and there's no good place to jump out because it's such good content.

@Jim73 5 лет назад

if the speed of light is slightly over 1 billion km/h (aka 1000 million km/h) and highest satellite speed of 700,000 km/h (0.7 million km/h,) make the percentage of speed of light calculation 0.7(mil)/1000(mil) = 0.0007%? So highest satellite speed isn't 0.7% the speed of light, but 0.0007% the speed of light. Edit: oh wait, I'm dumb, it's not a percent until the main division is multiplied by 100. So 0.7 / 1000 = .0007, and the percentage is .0007 * 100 = .07% Apologies!

@Jim73 5 лет назад

Look, I'm sorry to be "that guy", but I noticed at 20:47 the earth is rotating the wrong direction. Looking down on the north pole, Earth's rotation should be counterclockwise. Maybe it was a purposeful time reversal of an original video, whatever. Just kinda noticed it a little. (I just deleted and this is corrected, I originally said clockwise, which I realized was WRONG! Mistakes happen, we can forgive each other mistakes. I'm posting this detail to prove it's fair to make a mistake and good to openly say it)

@MeBallerman 5 лет назад

HA I thought I was the only one who saw it. How fast did you see it? I saw it IMMEDIATELY, as I knew that man are not capable of going almost 1 % of light speed lol. Cheers. Nice to see another one who went to school.

@rufus8546 5 лет назад

I'm having flashbacks to red and black hell styled levels.

@DakotaofRaptors 5 лет назад

Silent Hill?

@ancestrosdelsol9494 3 года назад

No stupid jokes, loud music, or dumb animation. Just the information we want in a serious tone with nice ambient music in the back. I love this channel.

@TheGryxter 3 года назад

I've been working on a lightspeed engine for the last 20 years and I'm ready to test run it. After listening to this, I guess I'll just toss it in the scrap heap. I don't wanna go if nobody's gonna be here when I get back! : (

@IronDizaster 4 года назад

What if in the far, far far FAR future we won't be traveling at the speed of light but through wormholes? Since they can be *supposedly* created by exotic matter, what if we gather enough exotic matter to keep a wormhole open forever and make them at will?

@michaelking9818 2 года назад

Exotic particles push you to the outside and behave differently than gravity, you would have two event horizon to pass over one each end

@futuriser367 5 лет назад

This definatly deserves at les\ast 10k views. This is one of the best documentaries about light speed travels out there. You cover your points in so much depth .

@MeBallerman 5 лет назад

@Alex-02 2 года назад

@@MeBallerman I also noticed that, obviously he had a brain fart

@Rocksteady8519 5 лет назад

Fun fact: The distance of crossing our galaxy (100000 light years) would actually take 0 seconds from the perspective of the photon traveling due to time-dilation which stops the clock when actually moving at 100% lightspeed. So a photon actually only experiences two events: getting "born" and "dying" by getting absorbed by what ever target it will hit. It dont experience the distance or any time it takes to travel. Mind bending xD

@LordMall 4 года назад

That's true. Now, let's assume you reach lightspeed. Just because time stops completely for you, you'll never be able to stop. You will remain in lightspeed forever. By the time you "hit the brakes" anyway, the Universe itself is long gone for you. In the real Universe, the instant you reach lightspeed and time stops, you break the spacetime continuum like a collapsing star, basically creating a black hole out of yourself.

@DiscoverLifeMedia 5 лет назад

I could see more of these types of videos!

@ximalas 3 года назад

4:28 Typo on screen, need to transpose the two last digits. Narration was spot on.

@americancanadian6539 5 лет назад

You deserve way more subs

@threegreencharms 2 года назад

@13:15 physicists* lol, awesome content. I love your videos, thanks!

@hoey2323 Год назад

I remember reading about the Daedalus project in 3-2-1 Contact when I was a kid in the 80s.

@bernardblack6997 5 лет назад

move aside brian cox, i have a new presenter of science to be bewilded by!

@pussywran 5 лет назад

also i know that song, its a synth wave classic

@deepism 5 лет назад

What is it?

@pussywran 5 лет назад

@@deepism Simpson wave

@JohnR436 5 лет назад

@@pussywran hahaha you mean HOME by RESONANCE?

@pussywran 5 лет назад

@@JohnR436 I mean that's a great song but not the one in this video

@JamJar61RS 3 года назад

It would be cool to hear about using gravitational waves for travel

@BHK0000 5 лет назад

18:35 Queen has also made a beautiful song about this phenomenon, it is called “39”.

@arrtea 5 лет назад

This is so depressing really ... this is the reason i wanna live forever or at least till the end of humanity just to see what we might achieve in the future and maybe help make sci fi real .

@MeteorCow 5 лет назад

Looks like somebody has a FOMO

@Antifag1977 4 года назад

Immortality would be a curse no matter what. The only think that could POSSIBLY make it bearable is to have an immortal companion/lover/bestie etc. Otherwise it would just be too heart breaking to bear after just a few centuries of watching the people you grow to love repeatedly growing old and dying.

@SpiriDussgaming 4 года назад

Devin Smith i have allmost no emotions about death, cause i know that is just a normal thing that ocurs in ur life. plus allmost nothing can change my mood, well only for a day or a few hours. if i would be imortal, the only thing that can hurt me is just pure boredom, if i dont find anything to do

@Antifag1977 4 года назад

@@SpiriDussgaming with all due respect you are deluding yourself. No one can really imagine what it will be like but the best approximation I've heard is to imagine everyone in the world being born living their lives and dying on the same day. After a while the constant loss of anyone you feel a connection to...which will get more and more rare as the centuries go on...would be traumatic. Then who knows how bad an immortal existence in pain could be. It is also possible , though unlikely IMO, that a person could have so much empathy and love for humanity that they cherish the fleeting time they have despite the fact that everyone is dying right in front of them. Obviously I don't know you but based on that cool aloof reply that almost nothing can change your mood, you don't exactly strike me as the connected empathetic type that shares his heart with all those around him LOL. I suspect witnessing the marvels of new tech will lose its thrill after just a couple of centuries. Sci fi even today has already imagined so much of what future tech will have to be like that seeing it happen will be like "oh so they finally got around to doing that one...interesting I guess..." The only way I can see immortality being anything close to bearable is to have a kindred to go through eternity with. Humans are not designed to feel alone all the time. Hell even if it was an enemy you really hated I could see that making it bearable. Although in time I suspect even the worst of enemies will become friends. If they can't kill each other then whats the point of hurting each other? Then again who knows...that may be exactly what a person needs lol. The underlying point is the same. You have to have at least one person that you have some sort of deep connection with to be immortal with you. Although heaven help humanity if two smart immortals decide they just want to rule the world LOL.

@musict4379 4 года назад

@@Antifag1977 Beautiful comment! Inspires me as a writer to venture into the concept of immortality.

@dadgarage7966 4 года назад

Try turning at these speeds. You'd spill your tea.

@carteljameson8395 4 года назад

I've always said that unless some new understanding of the universe is obtained, trying to reach the speed of light or near it would be kind of pointless considering the massive downsides. Traversable wormholes have always been the best bet to exploring the galaxy and universe in my opinion. The issue with that of course is that we have to survive long enough as a species to figure it out. Not just survive, but survive as a technologically advanced species. Any set backs would ruin our chances. Truth is, I'm not sure if I have faith that we'll continue developing and progressing without something happening. Whether it's space flinging all sorts of stuff at us or humanity destroying itself, there are a lot of obstacles.

@NovaScene 2 года назад

Great video, clearly explained! Subsribed!!🚀

@noahludford3667 4 года назад

We need to realize as a species that we're bound to our one chance to get it right. Earth our only frontier, let's keep it a good place to live.

@willandone4598 5 лет назад

Actually SEA, Ludicrous speed is the fastest speed and it's only on Spaceball1

@The053199 5 лет назад

Lets hope we never get *jammed*

@brokenacoustic 5 лет назад

@@The053199 Raspberry!!!!

@JustAnotherThisDJ 5 лет назад

And Tesla cars

@joshjames4552 5 лет назад

No he went plaid

@brianoh. 5 лет назад

Lol, " no! Light speed is too slow, we need to go all the way up to.... Ludicrous speed!"

@davidrenton Год назад

i have a question after watching your great Oort cloud video. Wouldn't the fact that we are surrounded by it, make it nigh impossible to even go through it at 2% of light speed or even a lot slower. What shielding, sensors could be developed that would negact the risk of collision.Or a constant star wars laser beam on the starship

@darkalchemist1891 3 года назад

This video blows my mind its all i ever wanted for so long now 👏

@jamesenos1929 5 лет назад

We won't we won't be around to see it but if or species last for another million years we should have figured it out by then.

@jamesenos1929 5 лет назад

@Anthony Frizalone it wasn't that long ago that we didn't even know that we weren't the center of the universe. There's a hell of a lot of other s*** that we still don't know. I bet you believe the Earth is flat. Stop being such a pessimist you get laid one day.

@jamesgraves1682 5 лет назад

If achieving light speed brings us to a point of contact with Jar Jar Binks, then all such efforts must be abandoned.

@christianknuchel 3 года назад

Jar Jar is a powerful ally, though. The occasional breakages will just be filed as job creation programs. ;)

@CeezGeez 2 года назад

If the legends are true he is powerful beyond anything we have ever witnessed

@zalphero618 3 года назад

If we do live in a simulation, it feels like somebody really made it difficult if not practicaly unrealistic to travel across the universe without effects of time dilation or limitations of speed of light.

@robertpaton9716 4 года назад

A lot of people might not realise that when you travel at high speed (near the speed of light - of course you cant actually reach the speed of light), the path length you are travelling along is contracted under special relativity. So you get there in a shorter time because the distance you have to travel is less. For an observer on Earth, the path you have to travel is the normal un-contracted path so your journey takes longer for them. This is the reason for the so called Twin Paradox. If you, the traveller, could get closer & closer to the speed of light you could make a journey in a very shortened period of time. But you pay the price that thousands of years would have passed on earth.

@malectric 2 года назад

Something that is rarely mentioned when discussing a body moving at (or close to) the speed of light is relative to which frame of reference? That of the earth? The Milky Way? A galaxy 12 billion light years away receding, say at c/2? Is it always assumed that the frame of reference is essentially the objects in the universe as a whole (except for the body being discussed)?

@DripinhoRL 5 лет назад

Wow I was just watching a video about this lol thanks Sea!

@blackhoggaming 5 лет назад

This seems to be the future of your channel

@fattburger6801 5 лет назад

Blackhoggaming Gd is dormant now so yeah. Dead is the wrong term because when 2.2 comes out people are gonna come back

@JustJacobe 5 лет назад

@@fattburger6801 so.......... slooooooooooooooooooowwwwwwwwwwwwwwwwwwww roooooooooooooobttoooooooooooooooooooopppppppppppppppppppppppppp even I program faster dude!

@chrisdooley6468 5 лет назад

I think huge multigenerational ships that use some sort of fusion/fission power are going to be our best bet. Perhaps Alcubierre and some others have interesting ideas to warp space or utilize worm holes or antimatter but eventually we’ll be put in a situation where, say we have 50 years until an extinction level event happens, to evacuate and then technological marvels will spring forth. But then again I remember when the sound barrier was deemed ‘unbreakable’ so perhaps there’s hope...