Light Speed Travel

Рет қаралды 1,089,115

Күн бұрын

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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Пікірлер: 2 100

@AUXdrone 5 жыл бұрын

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 жыл бұрын

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 жыл бұрын

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 жыл бұрын

@@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 жыл бұрын

@@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 жыл бұрын

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

@MrSpecify9 3 жыл бұрын

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

@trentindo6465 3 жыл бұрын

No, they’ve gone Plaid!

@astirwirble4317 3 жыл бұрын

Heavy speed

@elliotdawkins5127 3 жыл бұрын

To the moon 🚀🚀🚀

@krishnaa9023 3 жыл бұрын

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

@platinum-or3y 3 жыл бұрын

Supersonic

@scottwill6498 5 жыл бұрын

Imagine the jet lag on a 5.8 trillion mile flight

@DanielDogeanu 4 жыл бұрын

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

@Andy-in8ej 4 жыл бұрын

Only one day at TSOL

@legendarypussydestroyer6943 3 жыл бұрын

@@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 жыл бұрын

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

@opmike343 3 жыл бұрын

@@legendarypussydestroyer6943 Time debt.

@thealphajourney6108 3 жыл бұрын

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 жыл бұрын

How about the fact that the universe is infinite

@bowedbat 2 жыл бұрын

@@flooodo We don’t know this.

@flooodo 2 жыл бұрын

@@bowedbat youre right but it probably is

@bowedbat 2 жыл бұрын

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

@kzdcs9574 2 жыл бұрын

@@bowedbat I think you mean James Webb

@YogSoth Жыл бұрын

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.

@hoopschoop3339 3 жыл бұрын

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 Жыл бұрын

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.

@yaboisnek6535 Жыл бұрын

@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 2 ай бұрын

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

@awsumguy-bh9pz 3 жыл бұрын

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

@stanimatorblue 3 жыл бұрын

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

@pineappleginseng1557 5 жыл бұрын

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 жыл бұрын

Lol

@rickporras385 5 жыл бұрын

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

@pineappleginseng1557 5 жыл бұрын

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

@r-mackphotography6424 4 жыл бұрын

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

@Deadlyish 4 жыл бұрын

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

@willimo8565 5 жыл бұрын

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

@joshuamedina7292 4 жыл бұрын

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 жыл бұрын

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

@joshuamedina7292 4 жыл бұрын

@@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 жыл бұрын

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

@joshuamedina7292 4 жыл бұрын

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

@DoubleD19788 3 жыл бұрын

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

@christianknuchel 3 жыл бұрын

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 2 жыл бұрын

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

@theadversarylight-bringing6980 2 жыл бұрын

Well put.

@FitzgeraldStanburyWeissV 2 жыл бұрын

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 жыл бұрын

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.

@ChickSage 5 жыл бұрын

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 жыл бұрын

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

@jeffo2112 2 жыл бұрын

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 жыл бұрын

@@yurinamaekawa7250 thank you

@1q2w3e4r5t6zism Жыл бұрын

Robots will explore space.

@adraedin Жыл бұрын

@@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.

@MrJoker42369 3 жыл бұрын

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.

@sammysam2615 5 жыл бұрын

SEA never fails to provide great videos. Keep them coming

@Norguosanow- 3 жыл бұрын

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

@Spagghetii 4 жыл бұрын

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.

@zerofox1551 5 жыл бұрын

Remember when the sound barrier was a barrier?

@marxk4rl 5 жыл бұрын

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 жыл бұрын

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 жыл бұрын

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

@LaborHours 5 жыл бұрын

@@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 жыл бұрын

@@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.

@RemixedVoice 5 жыл бұрын

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 жыл бұрын

i agree on this one too actually

@aston452 5 жыл бұрын

Wow you are left wing as fuck embarrassing

@bigcauc7530 5 жыл бұрын

@@aston452 what the fuck are you bitching about?

@chinito77 5 жыл бұрын

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 жыл бұрын

@@aston452 Please name the person your replying to.

@johnvillanueva2591 5 жыл бұрын

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

@Danster547 5 жыл бұрын

Sugar High Haha extra quick oof

@LordMall 5 жыл бұрын

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

@georgewashingtoniv9162 5 жыл бұрын

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

@militantpeace2052 5 жыл бұрын

He would probably exit the entire universe without the proper braking

@jakephilipak3363 5 жыл бұрын

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.

@Mr_AlcoN 4 жыл бұрын

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!

@tuomash.5724 4 жыл бұрын

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

@indiv3250 5 жыл бұрын

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

@GainingDespair 5 жыл бұрын

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 Жыл бұрын

"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 4 ай бұрын

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

@randymiller7788 5 жыл бұрын

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

@edmundkempersdartboard173 5 жыл бұрын

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

@zinj2618 5 жыл бұрын

someone give Commander Shepard a call

@edmundkempersdartboard173 5 жыл бұрын

@@zinj2618 only if it's femshep.

@allenmcknight4079 4 жыл бұрын

Yes!

@commandershepard5636 3 жыл бұрын

@@zinj2618 bonjour

@Devendra95 5 жыл бұрын

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

@DanielLopez-ob9jz 5 жыл бұрын

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 жыл бұрын

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 жыл бұрын

@@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 жыл бұрын

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 жыл бұрын

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 4 жыл бұрын

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.

@davidczajkowski5956 4 жыл бұрын

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 жыл бұрын

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 3 жыл бұрын

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

@altar8010 3 жыл бұрын

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 жыл бұрын

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

@Immashift 3 жыл бұрын

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.

@dragoda Жыл бұрын

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.

@dashinking 5 жыл бұрын

at the speed of light by dimrain47

@theemeraldboat9947 5 жыл бұрын

[TO] DashinKing111 you beat me to it

@silentkaisei 5 жыл бұрын

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

@silentkaisei 5 жыл бұрын

@@aetaetaetaetae yeah I got the shittiest puns ever

@GMFan 5 жыл бұрын

GOD DAMNIT XD

@Qortexgd 5 жыл бұрын

This is fun👍 like for you

@Qortexgd 5 жыл бұрын

When your mom says KZfaq doesn't teach you anything, you show her this video

@MeBallerman 5 жыл бұрын

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 жыл бұрын

@@MeBallerman thanks father

@eval_is_evil 4 жыл бұрын

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

@eval_is_evil 4 жыл бұрын

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

@sagesheahan6732 Жыл бұрын

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

@michaeldriggers7681 4 жыл бұрын

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

@aogwaro 4 жыл бұрын

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

@dillon5155 4 жыл бұрын

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

@justicevanpool9025 4 жыл бұрын

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

@Just.A.T-Rex 4 жыл бұрын

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 жыл бұрын

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

@Nomadmandude 3 жыл бұрын

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

@seldenification 4 жыл бұрын

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

@xSmoKinGun 4 жыл бұрын

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

@austinarzylcharlzm.mandin1207 5 жыл бұрын

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

@zdude731 5 жыл бұрын

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 жыл бұрын

💙

@TheExoplanetsChannel 5 жыл бұрын

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 жыл бұрын

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

@SubhanKhan-lm9eo 5 жыл бұрын

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

@ThisNoName 5 жыл бұрын

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

@SubhanKhan-lm9eo 5 жыл бұрын

@@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 жыл бұрын

Means nothing in a universe 90 billion light years across.

@clark1066 3 жыл бұрын

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 жыл бұрын

Did you mean can?

@clark1066 3 жыл бұрын

@@baronvonhoughton Yup

@andrewpotapenkoff7723 5 жыл бұрын

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

@googoogjoobgoogoogjoob 3 жыл бұрын

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 жыл бұрын

goo goo g'joob

@lt5444 3 жыл бұрын

goo goo g'joob

@ajminadhimi8985 2 жыл бұрын

goo goo g'joob

@CeezGeez 2 жыл бұрын

goo goo g'joob

@GianFr3E Жыл бұрын

goo goo g'joob

@thePeterpumpkin68 5 жыл бұрын

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 жыл бұрын

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 жыл бұрын

@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 жыл бұрын

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

@Fermion. 4 жыл бұрын

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 жыл бұрын

That’s fine. The kraken maybe there anyway.

@halcyongeezer 3 жыл бұрын

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.

@TheNoodlyAppendage 4 жыл бұрын

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 жыл бұрын

Agree completely

@rufus8546 5 жыл бұрын

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

@DakotaofRaptors 5 жыл бұрын

Silent Hill?

@bryanpan8172 5 жыл бұрын

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

@ancestrosdelsol9494 2 жыл бұрын

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.

@johnpmilheiser5991 5 жыл бұрын

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.

@GMFan 5 жыл бұрын

It’s a miracle! Sea actually posted a video

@d0nk_ 5 жыл бұрын

He posted last week

@GMFan 5 жыл бұрын

TheCyberDonkey r/woooooooooosh

@helleboreofficial4692 5 жыл бұрын

@@GMFan yee

@pebble312 5 жыл бұрын

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

@GMFan 5 жыл бұрын

Pebble r/woooosh

@DardS8Br 5 жыл бұрын

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

@DardS8Br 5 жыл бұрын

Holy crap you hearted me

@TheGryxter 3 жыл бұрын

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! : (

@dichaelovic 2 жыл бұрын

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

@johnmarr5316 3 жыл бұрын

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.

@timmbrockmann959 4 жыл бұрын

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

@JustinLHopkins 4 жыл бұрын

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.

@Rocksteady8519 5 жыл бұрын

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 жыл бұрын

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.

@metaparcel 5 жыл бұрын

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 жыл бұрын

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 жыл бұрын

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 3 жыл бұрын

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

@sol.ringen 3 жыл бұрын

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

@DAVHORNER 5 жыл бұрын

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.

@primegoat 4 жыл бұрын

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 жыл бұрын

Thank you for this!

@IronDizaster 4 жыл бұрын

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 жыл бұрын

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

@deanfawcett2085 3 жыл бұрын

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.

@MrDjpappu 5 жыл бұрын

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

@emgee44 3 жыл бұрын

I like your channel, I've watched a couple of your video's, they're well presented. What is your background, are you studying astrophysics or work in that field?

@jamesgraves1682 5 жыл бұрын

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

@christianknuchel 3 жыл бұрын

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

@CeezGeez 2 жыл бұрын

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

@Jim73 5 жыл бұрын

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 жыл бұрын

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 жыл бұрын

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.

@threegreencharms 2 жыл бұрын

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

@DiscoverLifeMedia 5 жыл бұрын

I could see more of these types of videos!

@quacky2733 5 жыл бұрын

ur videos still amazing

@Alexehrh 5 жыл бұрын

Could you do a video on saturns moon Oceanus. It seems like a water land and they have discovered life underwater.

@Alexehrh 5 жыл бұрын

They have discovered a jellyfish-like being under the water so we have found aliens actually.

@Chaonyx_ 5 жыл бұрын

Hmmm. Interesting

@avencile 5 жыл бұрын

Can I see a source on this? cause nothing turns up if I google it

@ms3515 5 жыл бұрын

@@avencile same I want evidence

@jude6869 5 жыл бұрын

I think your misunderstand Oceanus, its a probe idea that could probe into A Titan ocean, no life has been discovered yet. There is another article on Oceanus saying it might go to Uranus but idk I’ll have to research a bit more. But rest assured people, this jellyfish alien doesn’t exist.

@davidrenton Жыл бұрын

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

@DodgerJim 5 жыл бұрын

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

@dadgarage7966 4 жыл бұрын

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

@boxity2975 5 жыл бұрын

#seasquad LOVE these videos keep em up because I’ll always watch them ❤️

@Pillokun 5 жыл бұрын

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.

@zalphero618 3 жыл бұрын

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.

@pussywran 5 жыл бұрын

also i know that song, its a synth wave classic

@deepism 5 жыл бұрын

What is it?

@pussywran 5 жыл бұрын

@@deepism Simpson wave

@JohnR436 5 жыл бұрын

@@pussywran hahaha you mean HOME by RESONANCE?

@pussywran 5 жыл бұрын

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

@mwbgaming28 4 жыл бұрын

The real question is how to stop when you get there

@EssentialComment 3 жыл бұрын

Der, ......Handbrake.

@chikki7145 3 жыл бұрын

We just make huge spaceship legs and dig our feet in

@cryptowest6555 3 жыл бұрын

brake parachute. Since its light speed i would use 2 of them

@Jay-cn3js 3 жыл бұрын

Idk? Retro thrusters...

@ricosrealm 3 жыл бұрын

Turn the engines off, spin the craft around well before you get to the destination... then turn the engines back on to slow down.

@dickmartn 5 жыл бұрын

Beyond light speed is fact. Quantum entanglement proves that.

@Omegatonboom 3 жыл бұрын

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.

@DripinhoRL 5 жыл бұрын

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

@noahludford3667 3 жыл бұрын

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.

@hoey2323 Жыл бұрын

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

@TrueCicero 4 жыл бұрын

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

@americancanadian6539 5 жыл бұрын

You deserve way more subs

@ximalas 3 жыл бұрын

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

@twisted1800 11 ай бұрын

Super-duper frajalistic espialadocious speed!😊

@stevemurphy4831 2 жыл бұрын

My head hurts...awsome presentation...love it !

@arrtea 5 жыл бұрын

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 жыл бұрын

Looks like somebody has a FOMO

@Antifag1977 4 жыл бұрын

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 жыл бұрын

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 жыл бұрын

@@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 жыл бұрын

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

@futuriser367 5 жыл бұрын

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 жыл бұрын

@Alex-02 2 жыл бұрын

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

@SuperpowerBroadcasting Жыл бұрын

Absolutely great video.

@BHK0000 5 жыл бұрын

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

@bernardblack6997 5 жыл бұрын

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

@blackhoggaming 5 жыл бұрын

This seems to be the future of your channel

@fattburger6801 5 жыл бұрын

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 жыл бұрын

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