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How To Detect Faster Than Light Travel

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Warp drives may or may not be possible, but if they are then could a distant alien civilization’s warp fields produce gravitational waves that we could see here on Earth? According to a recent study.. Actually maybe, at least eventually. And we now know just what to look for and how to look for it.
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What no one has seen before: gravitational waveforms from warp drive collapse: arxiv.org/pdf/...
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4 сен 2024

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Комментарии : 1,3 тыс.

@jajssblue Месяц назад

I'm glad to have lived through the first era of Gravitational Wave detectors.

@markedis5902 Месяц назад

I’ll be moderately happy if I live through the second era considering its planned for the early 2030s

@VanBurenOfficial Месяц назад

The sixth era is gonna be off the chain

@Benson_aka_devils_advocate_88 Месяц назад

I'm glad I live in an era where I can ask questions and not be told it's magic or spirits.

@captainLoknar Месяц назад

The first wave, so to speak

@gman9384 Месяц назад

@@VanBurenOfficial The WHAT

@samsmith2635 Месяц назад

So this is how the Vulcans detected Zefram Cochrane's first Warp Vessel....

@oracleofdelphi4533 Месяц назад

Love that he was drunk at the time.

@alliegamerbunny Месяц назад

@@oracleofdelphi4533 when i go faster than the speed of light for the first time intend to be good and drunk too.

@stickciv Месяц назад

They really missed an opportunity by not releasing this video on April 5th.

@HANKTHEDANKEST Месяц назад

*Steppenwolf intensifies*

@fep_ptcp883 Месяц назад

🖖🏻

@jounik Месяц назад

9:52 A spherical Klingon in a frictionless vacuum: "Moo."

@Merennulli Месяц назад

Kor took offense to that.

@c187rocks Месяц назад

But at what honor?

@KonradTheWizzard Месяц назад

@@c187rocks Dahar Master. You need some pretty smooth lines for that kind of thrust calculation.

@Merennulli Месяц назад

@@_Ben___ Get your own room. We booked the whole convention center.

@jpnesseth Месяц назад

Yeah. I had to slow that down to normal speed to make sure I heard that right. majQa' petaQ

@AlecTalan Месяц назад

As Douglas Adams once pointed out: Nothing travels faster than the speed of light with the possible exception of bad news, which obeys its own special laws.

@grey_north9016 Месяц назад

Wouldn't that mean bad news are quantum entangled?

@AndrossUT Месяц назад

Warp is very bad news indeed. The gravitational waves do not propagate from a bubble forming or collapsing. Those waves resonate within the bubble until it is driven from the known universe. This is how you can avoid the negative mass requirement. Driving the bubble out of the known universe creates an equal negative mass at the core configuration of the drive. The current limiting factor in human engineering is material strength. Once we achieve materials that can access the liquid crystal super ocean in the mantle of the Earth and the core device activates we will be able to create a warp drive.

@qdaniele97 Месяц назад

Warp drives would be plenty useful even if FTL travel would turn out to be impossible: Being able to reach Trappist-1 in around 40 years instead of the 200 you would need with a light-sail would still be a huge improvement.

@mikapeltokorpi7671 Месяц назад

Douglas Warp Drive runs on bad news.

@ReggieArford Месяц назад

@@qdaniele97 Or Pluto in a few days.

@BrentHollett Месяц назад

This is my preferred Fermi solution. A Lightspeed+ capable civilisation is spreading to the "home-like" planets of the universe. Because they can go Lightspeed+, communication is done by packet on couriers rather than radiowaves or other loud moving noise. So they're a very quiet, pin point islands, type of civilisation. We won't detect them until a scout ship appears in our solar system, and says "Hi, we weren't expecting anyone else"

@LoneWolf343 Месяц назад

Huh, now that is a thought.

@LanceThumping Месяц назад

Well hopefully we get those detectors that can detect higher frequencies as well as shorter lengths, then maybe we can at least see their treadmarks.

@FrikInCasualMode Месяц назад

Alternatively, such civilisation could have FTL communication method. Until we reach similar level of development, we would be unable to even detect such communication happening. Just like a tribe of hunter-gatherers wouldn't be able to detect our radio waves.

@cherubin7th Месяц назад

No there is always someone who still uses Fax.

@fep_ptcp883 Месяц назад

Imagine the alien Profession: space courier👽 -Would you please sign on the dotted line sir? Thanks. Here's your pen-drive. Have a nice friday.

@ThisOldSkater Месяц назад

Love that "you didn't think I was gonna get there, did you" smirk at the end.

@JeeVeeHaych Месяц назад

One of the few times I couldn't see it coming from a parsec away.

@user-xj8wy4uu1q Месяц назад

@@ThisOldSkater ???

@test5093 Месяц назад

@@user-xj8wy4uu1q He always closes with the words "space time". Usually you can see it coming.

@ThisOldSkater Месяц назад

@@test5093 I know. The way he was circling the drain on it was kinda funny this time.

@test5093 Месяц назад

@@ThisOldSkater yeah i was responding to the guy that didnt understand what your comment was referencing

@Yongle1519 Месяц назад

Warp bubble collapse "probably very bad for the aliens but maybe good for us" 🤣🤣 7:25

@phaseix5297 Месяц назад

I, for one, do not want to personally meet aliens with insanely-advanced technology. 😅

@DmT922ha Месяц назад

But can we detect Ludicrous Speed?

@donwald3436 Месяц назад

Yes just look for the plaid stripe lol.

@tcuisix Месяц назад

Underrated sci fi movie

@oracleofdelphi4533 Месяц назад

Buckle this!

@WackoMcGoose Месяц назад

"Well, why don't we take a five minute break? Smoke if you got em..." *_thud_*

@andreys7729 Месяц назад

Yes, but only too late.

@livinlicious Месяц назад

It's funny because in Star Trek they always say "detecting xyz warp signature". Basically we can argue they have sensors on board that analyse the gravity waves of different warp technologies. So you can scan for actual warp drives around you. Now imagine this technology to measure these gravitational waves becomes so small it fits into a small device you can just have in your ship. Similar to how big cameras were 100 years ago and now we have tiny sensors that are basically cameras the size of needle heads. That's my head canon now.

@MrBluman999 Месяц назад

Ah I love this about star trek. Same thing with phones. It used to be a big thing on the wall. Now it fits on your pocket and is a personal computer with access to mankinds collective knowledge, and your nephew will always ask if you have games on it.

@Deletirium Месяц назад

*canon

@joshiifive Месяц назад

It's doable with many mirrors and light bounces.

@jack.soncalo Месяц назад

great addition to the conversation. if so technologically advanced, couldn’t they omit or at least minimize signatures?

@santos.l.halper1999 Месяц назад

nah warp signatures in star trek were detected from emmissions not gravitational effects. That's why they were able to identify most ships from a unique pattern produced by the warp coils. I don't think an interferometer would be able to detect gravitational distortions of this scale in my opinion.

@chuckkv Месяц назад

I remember getting mocked out of the "Cool Worlds" channel comments a few years ago, for suggesting we should figure out what warp bubbles would look like, if an alien species happens to be using them, and if we can observe them while we're looking at the universe. This episode makes me so happy to see people are working on that very idea.

@dddd6606 Месяц назад

Achieving "1% speed of the Sun" requires some truly exotic physics!

@agreen9831 Месяц назад

Mostly just a lot of fuel. Remember, in rockets and computing, if brute force isn’t working, you’re not using enough. lol

@X9Zog Месяц назад

@@agreen9831lol

@fastend Месяц назад

He must have meant mass, right?

@hdaalpo Месяц назад

@@fastend Yes, he meant mass. Still a funny thing to think about.

@dionh70 Месяц назад

Ya, I had to stop & replay that bit to be sure I heard his mis-statement correctly

@cosmotect Месяц назад

Alien civilization: gets a flat tire Humanity (squinting through LIGO): gotcha.

@Direct0rkrennic Месяц назад

I'd like to propose the Laser Interferometer for Gravitational Mass Analysis, LIGMA

@Giantcrabz Месяц назад

I hope Congress approves the Garglon too

@Valgween Месяц назад

@@Giantcrabz Garglon?

@TPixelAdventures Месяц назад

@@Valgween......gargle on deez nuts.

@winstonknowitall4181 Месяц назад

LIGMA should be able to detect balls of warped space with great ease.

@eval_is_evil Месяц назад

😂😂😂😂 you sir won the interwebs

@rossburnett9546 Месяц назад

When space time posts, I'm there

@harrywilliams9290 Месяц назад

when space time posts, I've already come and gone

@ericwebster6911 Месяц назад

At warp factor 9.

@osmosisjones4912 Месяц назад

Just because you can't travel through a wormhole doesn't mean you can't travel with a wormhole opening and closing creating a space time current flow 🌌

@oracleofdelphi4533 Месяц назад

and 45 minutes later, so am I.

@Mikee512 Месяц назад

There space time posts, I'm when.

@campursarian1977 Месяц назад

This is the subject I was interested in as a teenager. I wanted to get a PhD in physics and invent warp drive. I am a trekkie, so... I was fascinated in engineering, physics, and astronomy as a child.

@justicedemocrat9357 Месяц назад

Let me guess, you failed at high school physics and now you are flipping burgers at Wendys.

@Biconnecc Месяц назад

And we ended up throwing those dreams in the trash so we could survive in this capitalistic hellscape

@thatsreallyamoon Месяц назад

@@BiconneccFACTTSSSS

@AndreLobov Месяц назад

@@Biconnecc what are you talking about, you can get a Ph.D in physics even in this capitalist hellscape. Sounds like you were too lazy to pursue it.

@peadarmurray7994 13 дней назад

Vs your communist paradise

@thewatcher14 Месяц назад

14:22 , the speed of the sun? I think you meant the mass of the sun. Love the content btw, keep up the great work!

@stoptryingtomakemeusemynam7829 Месяц назад

lol, I had to replay that because I thought I'd stroked out for a second.

@ianoxenham4219 Месяц назад

@@stoptryingtomakemeusemynam7829 I think he intended to say "mass," as the closed captions accompanying that part of the video say "mass" if you turn them on

@fabrislemos Месяц назад

Matt's narration in this episode is weirdly truncated. I don't think he had time to prepare for this one and just had to read whatever the prompter said on the spot. That might cause errors like this.

@user-gd8ls7ru9q Месяц назад

Don’t take the speed of the sun out of context because he meant what he said and so just look at it as one giant compound word and it makes sense as he intended.

@thewatcher14 Месяц назад

@@user-gd8ls7ru9q "But 10% lightspeed requires a mass-energy equivalence of 1% the speed of the sun." It doesn't make sense because he's talking about a mass-energy equivalence, which requires an actual "mass-part". That doesn't exist here. It would make sense if he said "But 10% lightspeed requires a mass-energy equivalence of 1% the MASS of the sun." because then mass-energy equivalnce would make sense. And the subtitles of the video actualy say mass, I presume he misspoke. Feel free to correct me tho, I may be missing smth.

@jkRatbird Месяц назад

The fact that we have so few ideas about what we’ll see when we make a high frequency gravitational wave detector makes me want one even more!

@Axodus Месяц назад

FTL is a great indie game btw.

@Arashmickey Месяц назад

Pipaluk my hero

@iseslc Месяц назад

It is AMAZING!! Been playing it for years!!

@jessejamez5985 Месяц назад

From like 30 years ago of the much more recent one?

@SidMajors Месяц назад

Love the music too

@SoloDoloPoloOlaf Месяц назад

If anyone feel like they're done with basegame the Multiverse mod adds a ton of content (hundreds of hours). It's FTLs equivalent to the Enderal mod for Skyrim, a total conversion of the game.

@echosixbravo8128 Месяц назад

I am no where near a physicist or mathematician so I can’t understand the equations but thank you for putting these in a language I can at least follow.

@user-oq1ew2hv8o Месяц назад

speed of the sun ❤

@rucker69 Месяц назад

the subtitles correct this: it's "mass of the sun"

@necronlord8274 Месяц назад

Question: If spaceship with FTL capabilities dropped below event horizon of black hole, would it be able to escape?

@theterribleanimator1793 Месяц назад

depends how deep it went. Of course it cant pass through the center, there will be so much pressure the very subatomic particles would be crushed. We also don't know if physics as we understand the work below the horizon so your ship might just stop working the moment it crosses. Also the event horizon forms when the escape velocity is above c. But that does not mean it stop growing as you go along, if at the horizon its c, a few meters (if they exist at all beyond the horizon) below would be say 1.5c. If your ship can travel at or faster than 1.5c then it can enter the horizon, pass a meter below it and leave, but if it falls say 2 meters, then it will be dragged down to its destruction.

@jack.soncalo Месяц назад

Personally, I think these two hypotheses are interlinked. FTL travel could use “black holes” to their advantage

@PandemonicHypercube Месяц назад

I've often wondered whether that would be possible, assuming an Alcubierre drive is possible in the first place. If the negative energy version is somehow possible. Wouldn't the ability to create a sufficient quantity of negative energy/exotic matter with negative mass be equivalent to being able to create anti-gravity? And therefore partially reverse the insane spacetime curvature caused by a black hole? I'm sure someone with a better understanding of physics than my Dunning Kruger level understanding can tell me why I am completely wrong haha.

@8__vv__8 Месяц назад

Assuming it’s made of ordinary matter, it takes an infinite amount of time to cross an event horizon. So, even if we ignore all the complications and it were somehow able to pop back out intact, it probably wouldn’t pop back out into anything resembling the current universe.

@piotrd.4850 Месяц назад

@@8__vv__8 I don't think your reasoning applies to traveling under warp / in bubble.

@FrenkMelk Месяц назад

I had read years ago that the "WOW! SIGNAL", of the '70s was early on speculated to be just this. The notion of which really filled me with a lot of fascination and made my imagination go nuts!

@AndromedatheBasshead Месяц назад

I enjoy these trains of thought. I think it's similar to reverse engineering, except we don't have the craft in front of us yet.

@samanthaqiu3416 Месяц назад

people only know Alcubierre for his warp drive paper, but future generations will know him for his amazing introductory book on 3+1 formulations of numerical relativity

@onedeadsaint Месяц назад

a book on what?

@MSpacer Месяц назад

@@onedeadsaintNot a physicist but I think I can explain this one. It means numerical relativity simulations (like were discussed in this episode) in 3 + 1 (3 space, 1 time) dimensional space time like the one we actually live in, as opposed to the 2+1 space time in the simulations shown in the episode.

@JanPBtest Месяц назад

IIRC he actually hit on this "warp drive" concept while investigating the 3+1 formulation chapter from the Misner-Thorne-Wheeler's book.

@Brasswatchman Месяц назад

@@JanPBtest Wheeler as in John Wheeler? Man, that guy was everywhere.

@ivandjurdjevic7463 Месяц назад

I ordered the Higgs boson merch from Serbia. Still hyped for it to come!

@AllonKirtchik Месяц назад

I got mine already and let me tell you: it’s really nice Hope yours arrives soon

@xoonn9 Месяц назад

It makes feel proud to know there are people out there working on such complex topics. Thank you!

@costa_marco Месяц назад

Typo at 14:11 01.c instead of 0.1c Misspoke at 14:21 "10% of the speed of the sun" instead of "mass of the sun"

@THEMithrandir09 Месяц назад

Seems like a fun idea. If this worked you could send information faster than light, because you don't need to care about the bubbles, you can just cause gravitational waves appear at a point in spacetime you want, and encode information in that.

@paladin0654 Месяц назад

First Contact: warp signature.

@liamfeatherly458 Месяц назад

Oh my god this is so exciting I was just at the LISA symposium in dublin last week!! Wow from being a kid watching this to seeing some of the stuff im working on oh my god I cant describe how this feels.

@suntaog Месяц назад

It's pretty amazing how being able to experience cutting edge technology can feel so good.

@TheDragonRelic Месяц назад

Bro is a main character

@Klexem Месяц назад

0:06 “Whoop drives”?!! 😂

@tenorenstrom 20 дней назад

Adorable. Listening to it on repeat!

@Space30MINUTES Месяц назад

this is sure the best time to be living in, just think how much information we normal people have access to, which would be a dream for a scientists back then, thank you for explaining such a complex thing in a very easy way

@Ottee2 Месяц назад

So true. And all for free on a youtube channel.

@adamzaczek6342 Месяц назад

The only problem of being faster than light is that you can only live in darkness :/

@James_3000 Месяц назад

so the same as always?

@cavelord4766 Месяц назад

Just turn your cabin lights on

@kreynolds1123 Месяц назад

If M=M'/sqrt(1-V²/C²) then mass with V greater than C means M is imaginary. I don't know how real mass and energy would react with imaginary mass, mass×sqrt(-1)

@AmonTheWitch Месяц назад

Goths are gonna invent it now

@Palozon Месяц назад

It's a funny quote but that's not how a warp ship would work.

@ODUBlue Месяц назад

11:09 “We’ve all been there.” Don’t even get me started on the last time 🙄😄

@kingozala Месяц назад

Greets from Finland, you guys are doing great job!

@osmosisjones4912 Месяц назад

If we don't know what mass is how do we know negative mass doesn't exist. What about dark energy what about like charge's repelling what about heat flowing away from bodies

@EconAtheist Месяц назад

... can you send us better snipers?

@gabor6259 Месяц назад

Perkele!

@MaxCarponera 12 дней назад

The "u" in Miguel is mute. Same as in "que" (what). This is one of the few exceptions in spanish, the u is used muted in a few combinations. Also the last e in Alcubierre sounds exactly like the previous one. We only have one sound for each letter. Our writting sounds exactly the same as speaked.(again, very few exceptions apply)

@ZetaFuzzMachine Месяц назад

I always looked down on those circle-wave Alcubierre drive visualizations. Gimme some stretched-chewing-gum-Space-Time!!

@_justcarlson Месяц назад

Finally! Somebody finally is convincing LIGO detectors to look at shorter period phenomena. Huzzah!

@Edge-wx7hv Месяц назад

while gravitational wave detection will be absolutely required for Warp and artificial gravity calibration and operation, one of the upshots of the Alcubierre system is that activating and deactivating the drive will redshift and blueshift enough light to generate intense bursts of hard rads. which will be very detectable to sensors we have now, and will likely require specific filghtpaths for FTL launch and arrival. in other words, we should also be looking for likely bursts of hard radiation in other star systems that correspond to likely space traffic behavior

@RichWoods23 Месяц назад

Well, that's the Alcubierre Torpedo invented. Fry one hemisphere of your target planet by braking ten million klicks short of it, so that by the time you've trundled up to it the atmospheric shock waves will have travelled multiple times around the planet trashing the other half. Take a bunch of sensor readings to determine whether it's going to be worth sending a mining vessel later to extract resources from the rubble, then power up the drive and head for your next target.

@Edge-wx7hv Месяц назад

@@RichWoods23 space traffic control will have to take a no-tolerance stance on anyone in the wrong spacelane

@BBBrasil Месяц назад

Much like charge-parity-time symmetries, negative solutions and even expectations on how we believe the universe works (Hi, Doc!) broadens our understanding of the fabric of reality.

@c99kfm Месяц назад

Regarding the merch, I ordered a black hole pin and paid for shipping to Europe. However, I had to pay another $15 to get it past customs, because of trade zones. Please consider partnering with a European merchant, because that was some major markup.

@protocol6 Месяц назад

Why focus solely on a ships large enough to carry people? There could be tons of packet ships that do nothing but carry data and could be exceptionally small but would be quite useful, still, if they run regular routes on a schedule. Granted, they'd be harder to detect.

@Veramocor Месяц назад

Like the space communication system is mass effect

@andreys7729 Месяц назад

waves carry data just fine

@ObjectsInMotion Месяц назад

Because you have to focus on something when you're limited on resources, so why would you add unnecessary speculations

@ac.creations Месяц назад

@@andreys7729at the piddly light speed. Imagine flash drives that go 10x c.

@Crazyfootballguy Месяц назад

Like space UberEats? good idea.

@AnDyShEnKJr. 3 дня назад

Oh, boy did you sum it up life concisely; "... would rather be in some other patch of Space-Time..."

@DomyTheMad420 Месяц назад

LISA got approved?!?! :D WOOOOH!!

@bonafidemovieshorts Месяц назад

I just realized: Alex owns the " Astrum" channel too, what a smart man, good for him, putting that physics PhD to good work, salutations.

@ariochiv Месяц назад

It's within our technological grasp to detect something which almost certainly doesn't exist. Exciting, indeed. For myself, I just enjoy listening to Matt say "warp field" and being completely serious.

@asdu4412 Месяц назад

Peer-reviewd sci-fi fanfiction.

@christophercraft6683 Месяц назад

Love that I just finished watching Contact on here for free and this is immediately on my feed. Perfect!

@Ottee2 Месяц назад

Yes, this video had me recalling the movie, Contact. I should watch it again.

@netopir3804 Месяц назад

Just the evening before I head to holidays, I get this video that will get me dreaming and sleep tight.

@andreys7729 Месяц назад

I can't sleep imagining how an invisible FTL ship approaches...

@user-ft3ed5wv7w Месяц назад

Cool video thank you. I think we have many things to learn in the future. Why Galaxys keep together at the outer regions and still fast circling or the 3 body problem. The Warp Drive in Startrek is powered by Antimatter Energy production, maybe thats the way .)

@Veni_Vidi_Vortice Месяц назад

Alien Warp Bubble will be the name of my next world-conquering rock group. Thanks for that.

@andreys7729 Месяц назад

You will you will warp us

@SushiElemental Месяц назад

🤘🏻

@andersjjensen Месяц назад

That will require at distortion pedal that has negative mass....

@BlueLotusFire Месяц назад

I absolutely love this series. I'd love to see you guys integrate Dewey Larson's recriprocal system of theories though, his unified physics theory is insanely accurate but it has almost no traction and i cannot understand why.

@dphuntsman Месяц назад

Great explanatory report! Thanks!

@IzudeDarkwolf Месяц назад

It's exciting, I hope they use this to finally settle whether superposition is superposition or just sub plank objects moving at faster than c speeds, thus creating the illusion of being in multiple states that disappears when it interacts in a specific point in it's >c transitions.

@An_American_Man Месяц назад

When I saw the notification, I got here faster than light.

@PhysiKarlz Месяц назад

You would have arrived before receiving the notification.

@An_American_Man Месяц назад

@@PhysiKarlz Cool, right? But the video would still be up, considering RU-vid's notification algo took time to notify me that the video had been posted.

@PhysiKarlz Месяц назад

@@An_American_Man It's a joke about moving faster than light (causality).

@AmonTheWitch Месяц назад

NOT SCIENTIFICALLY POSSIBLE ✋🤓🤚

@An_American_Man Месяц назад

@@PhysiKarlz, I'm entirely aware. Although it wasn't really a joke about causality because it wouldn't have changed the fact that I did, in fact, see the notification along my causal timeline as an "observer".

@michaelkukula5926 Месяц назад

What would happen if an object gets caught in the wake of a warp ship, whether it’s a planet, moon, other ship etc?

@capitalcitygiant Месяц назад

ScienceClic AND PBS Spacetime on the same day? I feel blessed.

@petepanteraman Месяц назад

16:05 we can use a multi frequency series of satellites to map the galaxy and more. If we get a fuller picture we see more colors and someday we will discover a way to travel the stars. For example we all use GPS/ maps to find that new tasty restaurant to take the family too.

@oracleofdelphi4533 Месяц назад

FTL physics gets insane really fast. Let's say someone from Proxima Centauri shot a grain of salt at our moon at 2c. We would see the moon blow up for no reason and assuming we survive the blast, 2 years later we'd see this salt particle scream toward where the moon was, then disappear.

@Flesh_Wizard Месяц назад

"really fast" Faster than light, I presume?

@redmanone Месяц назад

I think it all depends on how this FTL system works; if it leaks radiation or not. Well, to see it, it would have to. The points on the incoming salt's vector near the moon are closer to us than the ones from when it started. I think the moon would explode first, and a beam would instantly shoot away from the explosion towards the salt's origin. That's what you could watch for years, it going back.

@yourguard4 Месяц назад

hmm... I would expect it to hit the moon, and then we would see the proton moving into the direction from where it came.

@luayuahmed Месяц назад

Wouldn't we see the salt reversing backwards out of the moon? Sure it's moving at 2c, but right before it hits the moon it's still emitting light, so you would get a "replay" of the salts journey through space.

@oracleofdelphi4533 Месяц назад

@@luayuahmed That's part of the insanity. You're right. It would appear to be both travelling back to the point of origin AND toward the moon simultaneously.

@andrekz9138 Месяц назад

Oooooo, I love linking back to past videos. Keeps the train going

@raphaelgarcia9576 Месяц назад

This assumes the warp bubble bursts like a soap bubble. It could dissipate similar to a change in density without emanating a gravitational wave. Without knowing anything about the exotic matter, it’s impossible to know if it would escape upon stopping. This is an interesting thought experiment though.

@terfalicious Месяц назад

Right? I was thinking that you would power it down - not just shut it off with a pop - bleed away the energy smoothly, and perhaps even recycle the residual somehow.

@devindaniels1634 Месяц назад

That's why he's saying they're using the case of catastrophic collapse. You turn it off like you're saying, and there's no episode here. A catastrophic collapse is at least feasible and is one of the most feasible ways to create a detectable signal. It's not the sole possible outcome, just the most interesting one from our point of view.

@manicangel7796 Месяц назад

I don't understand three quarters of what this man is saying but I watch every show anyway. I love it when I do get some of it lol..

@Beldizar Месяц назад

The idea of an accelerating warp bubble creating gravitational waves further cements my belief that faster than light warp bubbles are not possible. If an accelerating warp bubble creates gravitational waves, and gravitational waves move at the speed of light, then it shouldn't be possible for the source of the generation of the waves to overtake them. How can a warp drive communicate to space in front of it that the space in front of the ship should be warped, except through light or gravitational waves or some other massless particle? If the means by which to warp space in front of the ship is limited to the speed of light, then it is impossible to get the communication to warp space to the next increment in front of the bubble any faster than the speed of light. Lentz even admits this in his paper, if I understand it right. He says that it is possible for a warp bubble to exist, and to travel faster than the speed of light in a self-propagating geometry, however he says that there is no means for this bubble to accelerate or decelerate to and from superluminal speeds. So a faster than light bubble mathematically works if it already exists, but there's no way to get there. And once there, there's no way to stop it. The idea of a subliminal warp bubble is much more feasible, and I'm glad the example used was a speed of 10% c.

@maxibear9802 Месяц назад

If i recall correctly he does say in the video that these gravitational waves would emit during a theoretical acceleration or deacceleration period, so maybe during those periods, when the bubble is below the 1c mark, it would only emit gravitational waves then? I'm no expert so this is just a random guess lol, I hope PBS makes another warp drive video simply going over the progress in research as a whole this year besides this interesting paper.

@Beldizar Месяц назад

@@maxibear9802 "during a theoretical acceleration or deacceleration period, so maybe during those periods, when the bubble is below the 1c mark, it would only emit gravitational waves then?" Yes, I think that's true. The thing is, I don't think it is ever possible to go above the 1c mark, and I think the fact that the waves are emitted by the process further lends evidence to that fact. If you can't emit waves that proceed the bubble, it shouldn't work.

@TPixelAdventures Месяц назад

From my understanding, Alcubierre drives kinda fold up space-time in front of it and poke through to go FTL. What if the warp bubbles only happen when the vessel "pokes" through the folds of space that it travels through?

@Beldizar Месяц назад

@@TPixelAdventures I've never heard the "pokes through" description before, and I don't think it is accurate. I believe it is usually described more like surfing. In either case, that doesn't solve the issue. If the Alcubierre drive folds up space in front of it, that is a cause and effect: the drive activates, and the space, some distance away/in front, folds as a response. The speed of light is the speed of causality. You can't have a cause and effect relationship occur that travels faster than light. So the fastest the next chunk of space in front of the drive can become folded is at the speed of light. It therefore shouldn't be able to travel faster than light because it can't tell the space in front of it to become folded any faster than that.

@TPixelAdventures Месяц назад

@@Beldizar hmmm, must be some other ftl theory drive that i remember then. Thanks for the explanations!

@Numba003 Месяц назад

Thank you for the update regarding this interesting study. Even though such things may be impossible, I hope we manage to give a listen for a warp drive one day. After all, how many times has humanity been wrong about what's possible? God be with you out there, everybody. ✝️ :)

@The_CGA Месяц назад

The GSV **Fate Amenable to Change** sending its ripples through the Skein over here…

@Chipchap-xu6pk Месяц назад

This comment has a gravitas deficit.

@MatthewBrown-yu1hs Месяц назад

Wonderful content as always. Very much an aside, but love the improvements on the merch side of things! My preferred way to support.

@drbuckley1 Месяц назад

Bubble Bombs. Sounds like a great weapon.

@diocletian607 Месяц назад

Mega Man 2

@Badficwriter Месяц назад

Yeek. Sounds like the new mass driver.

@user-kv6lw4cp4u Месяц назад

في المستقبل البعيد وبفضل التكنولوجيا المتقدمة سوف يتساوى الخيال مع الواقع ويمتلك الإنسان قوى الآلهة ليحول الكون والأكوان المتعددة إلى جنة خالدة ❤

@bigsarge2085 Месяц назад

Fascinating!

@znephf Месяц назад

Imagine activating such a higher-frequency-listening detector and it's popping all around ... a man can dream!

@NeonVisual Месяц назад

I've been saying this since LIGO went online. Given that numerous high level people have described craft in our atmosphere moving at crazy velocities and turning at right angles, both visually, thermally and on radar, it's about time the scientific community did it's part looking a little closer to home instead of gazing hundreds or thousands of lightyears away and trying to detect life with a single interesting pixel.

@maltheopia Месяц назад

There's a reason why UFOlogy started out in a time period well after the dawn of aircraft but also well before telescope, camera, and drone technology got as good as it did. Basically just people projecting their poor knowledge of what's possible with science onto aliens. This guy is pretty explicit about this mentality: why look at interesting pixels when we could look at shiny spacecraft, because it totally makes sense if your knowledge of technological progerssion game to a screeching halt after the 1970s that advanced aliens with FTL would physically fly into our atmosphere to take pictures!

@NeonVisual Месяц назад

@@maltheopia what uninformed nonsense is this?! Of course more eyeballs in the sky and sensors pointing at controlled airspace is going to increase sightings and data capture!

@maltheopia Месяц назад

@@NeonVisual My point is, you aren’t capturing anything, because our vastly inferior technology to aliens nonetheless increasingly doesn’t require proximity to what’s being observed, and in any event our own surveillance craft keeps getting smaller and less intrusive over time. So you are telling me that ALIENS need to use primitive, inferior techniques like physically flying entire spacecraft to observe rather than just parking on Ceres and seeing individual pimples on a teenager’s face? That is only plausible if you project your own 70s-ass conception of technology into higher beings. In other words, you’re not observing aliens, and if they are out there, the field of UFOlogy is an insult to their intelligence.

@TonyNaggs Месяц назад

Happy to see a fresh Space Time video Matt. Already happy today, as the Space Time glow in the dark Higgs design t shirt I ordered arrived here (in the UK) this morning, and is fun to activate with my UV flashlight. 😄

@davidtagliaferri Месяц назад

We can detect Gravitation wave from colliding black holes, barely anything smaller., I think we will have faster than light travel before we can detect it.

@osmosisjones4912 Месяц назад

Just because can't travel through a wormhole doesn't mean you can't travel with trillions of wormholes opening and closing in front you creating a current flow of space time

@andreys7729 Месяц назад

But can we presently detect our future FTL ships traveling out there?

@jetison333 Месяц назад

@@andreys7729not unless they figured out how to time travel

@_CosmicWizard_ Месяц назад

The hypothetical scenario of a warp bubble collapsing due to a new recruit has a weird way of reminding me of the Titan submersible but for space.

@Kokally Месяц назад

I'd expect a superluminal warp field collapse to immediately become a black hole. Matter can't normally surpass the speed of light and so superluminal matter would immediately be compacted against the causality speed limit. The matter would instantly be compressed into a singular point, a singularity.

@11B_geek_with_gun Месяц назад

Observer (particle, information, labradootle, etc): I'm gonna do something mathmatically possible! Universe: Lolz, go ahead! Hey everyone, new blackhole over here! Seems to be the Universe's way of hiding law-breakers.

@halfnattyboomer354 Месяц назад

lol

@ht3k Месяц назад

One thing you're not understanding is that the matter itself inside of the warp bubble isn't moving at all. It is the space around it that's "transferring" the matter to a different spot in space. You'd feel little to no g-forces. That means matter isn't accelerating at superluminal speeds, in fact, it may not be moving at all. So this is a loophole around the speed limit and therefore this limit wouldn't apply. We still don't know what other laws of physics would prevent you from warping or "transferring" matter beyond the speed of light when this matter isn't moving at all inside of the warped space.

@christopherrogers532 Месяц назад

@@ht3k If I'm reading him correctly I think he means the space you are in would get blackhole levels of small if you tried to go FTL.

@YeisenAchitel Месяц назад

Slowly power down the field and dissipate the warp field.... not collapse it...

@jtgullickson6117 Месяц назад

Yay 29 seconds fresh new episode my lucky day.

@Nobody2989 Месяц назад

Maybe I missed it, but is there anything non-alien that could produce gravitational waves with that high of a frequency? 300 kHz

@garethdean6382 Месяц назад

Primordial black hole antics, possibly some processes in neutron stars and white dwarfs. Ringdown from large black hole mergers.

@ZoonCrypticon Месяц назад

My favourite astronomy presenter!

@tiffanymarie9750 Месяц назад

One of the reasons I love The Expanse books is the speed of light being non-negotiable is part of the fun of the science fiction aspect. It launches age of sail fiction to the stars 🌝

@HANKTHEDANKEST Месяц назад

Totally yes. And remember: don't splatter yourself against the back wall of your ship!

@juimymary9951 Месяц назад

Though they do manage to get around it with wormholes in a very creative way

@imbass8151 Месяц назад

can you guys do a video on the idea of exotic matter such as stable isotopes among the possible island of stability? I really enjoy the idea that among such "magical" isotopes, there may be a configuration that allows for stable and efficient production of anti-matter, and thus, some sort of warp drive capability.

@user-hx2xl2km2e Месяц назад

The nice Celtic face is the best way to end a busy day.

@needy3535 Месяц назад

normal thing to say

@HuragokSlayer Месяц назад

Great another Trisolaris episode

@santturuikka Месяц назад

Came here faster than light

@KeithMoon1980 Месяц назад

The question I've always wondered about the warp drive, is that it compresses spacetime at the front. Well when you get to you destination, wont you rapidly move through the compressed spacetime, rapidly experiencing the amount of time you would have anyway.

@dobiacco Месяц назад

You don't detect it because it doesn't exist.

@glxytoni Месяц назад

thats what the Simulation Devs want you to know

@karanaima Месяц назад

Just like your brain cells

@ReinReads Месяц назад

We can’t detect something we haven’t built a detector that could detect it. We are in the infancy of gravitational wave detection. As this field grows we will be discovering things we thought couldn’t exist given our current incomplete understanding of physics. Same thing that happens every time we expand our ability to observe the universe.

@dobiacco Месяц назад

@@karanaima That was unnecessarily rude. I'm going to tell your mom. Tonight.

@TumbleweedRocks Месяц назад

"Absence of evidence is not evidence of absence”

@rossk7927 Месяц назад

It's one of those things. If we *knew* FTL was possible we would figure it out much more quickly than if we had no evidence of its possibility.

@RivalIndigo Месяц назад

We don't know it's possible until we try to make it possible.

@hweidigiv Месяц назад

I'd like to see an episode about Exotic Matter: what used to be exotic, how we identified their properties, confirmed (or disproved , remember phlogiston?) their existence (no longer exotic), and what "XM" modern phyisicsts still seek. Such a video would cover the 1869 periodic table, the Standard Model, and current string theory and derivatives.

@joshiifive Месяц назад

I still don't get how space bubbles possibilitates faster than light travel, the waves by them selves don't move faster than light, and at least in the simulations I see space inside the bubble seems to be flat just like space around it, it looks like the ship is traveling normally or traveling at light speed just like the outside space.. Doesn't space need to stretch or fold from where the travel began to the destination? I don't get it, the squares look the same as if the warp bubble weren't there.

@kevinstory872 Месяц назад

facinating, what would happen if you were to drag something behind you in that bubble. would the dragged object change nothing or would it convert to light, would it act like a brake and drag you out? would it explode space? what happens to light that interacts to your space ship? would it interrupt a predetermined path of light or does time just accept your movements and adapt accordingly?

@TM-yn4iu Месяц назад

Quite entertaining and informative video, but i had to pause a few times. I heard background music and thought ice cream truck was passing at 8..Austin TX

@waltervoerzio5917 Месяц назад

Hi, I'm Italian, I saw your video very well and it made me remember something I saw in the sky in August 2021. It was around 10pm and I was in the courtyard looking at the starry sky... at a certain point I saw a sort of deformation of the sky, in the shape of a "boomerang", it seemed very far away and occupied all the celestial space I could see. I tried to call my wife and my daughter to see, but this effect lasted too short, about 10 seconds.. and it was too dark to film it anyway.. This "boomerang" created a sort of deformation/fluctuation in front and behind itself, proceeding from north to west. My thought, though I know nothing about physics, was that it seemed to warp "spacetime", the stars inside the boomerang seemed to move with it... it looked like the wormohole effect from Interstellar, to make you understand, but in the shape of a "boomerang", not spherical, but gigantic. obviously I don't know what it actually was. What can you think or conclude about something like this? thank you!

@greenredblue Месяц назад

Listening to all the incredible amount of intense, complex, and detailed work that went into this just makes me imagine how mad everyone would be if it turns out the universe has a superuser password, and the first person to find is someone just doing a silly dance on TikTok.

@alazarbisrat1978 Месяц назад

doing tiktok dances and super science on the side? that person's living the dream

@thefrostychemist Месяц назад

We were just watching an episode on The Next Generation yesterday that went over how the federations' warp speeds were starting to destabilize gravitationally vulnerable regions as a metaphor for climate change, and we were really happy with how they didn't shy away from the moral and embraced that warp is in fact bad for the environment, and research will need to be done to mitigate, and in the meantime they'd need to impose limits. We love sci-fi worldbuilding so seeing them actually explain warp drive finally was super interesting.

@piotrd.4850 Месяц назад

Actually, it was in place where subspace fabric was already screwed. Anyway, I applaud this (and Omega) episodes, for attempt to at least mention gap between high sublight and even slowest FTL warp drive speed.

@rucker69 Месяц назад

It's a stupid premise based purely on Rodenberry's marxist leanings.

@tehlaser Месяц назад

Scientists: “every time we look in a new way at the universe, we find things we weren’t expecting” Also scientists: “best not build a high frequency gravitational wave detector, we don’t expect there’s going to be anything to detect” confusedpikachu.jpg

@LanceThumping Месяц назад

I think it's less "not build" and more like "build designs that detect other things better first"

@Badficwriter Месяц назад

Because funding. I wonder what a physicist's unlimited money wishlist looks like.

@hweidigiv Месяц назад

Definitely because of funding.

@garethdean6382 Месяц назад

Welcome to funding.You want the most new for your dollar. This also means that, say, the JWST is booked months in advance and it will do less than 10% of what it *could* do because it'll only work for so long. So important stuff goes first.

@zacharycharnell8462 Месяц назад

This question may be better asked on the warp drive explainer video, but I'm wondering about how the bubble actually moves relative to the rest of space. Or rather, how is the space in the bubble connected to the space outside of the bubble? Presumably the space in the bubble can't ever be disconnected from the space outside and reconnected elsewhere because that would just be a wormhole. It seems like at the boundary of the bubble space should be compressing, expanding, or shearing infinitely, but then when it comes time to close the bubble how would the travelers exit the bubble without having to cross all that distorted space?

@alfadog67 Месяц назад

I would think that if the bubble collapses, it would simply stop moving the ship. I mean, after all, bending spacetime is what the bubble does instead of creating momentum on the ship. The ship isn't really moving through spacetime, but the spacetime around the ship is moving the way universal expansion moves galaxies apart. I would like to see a simulation of that!

@jonloomis5210 Месяц назад

Something I wonder about is why warp bubbles are always so large compared to the craft. Would it not be more energy efficient, though likely with less acceleration, to have a more form fitting bubble that extends just barely beyond the external surface of the object instead of projecting a larger field around the object? For instance, what would be the difference in energy requirements and acceleration of a warp bubble 5m in radius for an object half of that radius vs a bubble 2.51m in radius for the same 2.5m object with the same mass? (yes that might be unrealistically low given the energy and such needed, but the question is conceptual)

@WolfeSaber9933 22 дня назад

In a Sci-fi series I'm working on, the Sol system uses gravity telescopes to detect FTL travel to defend against attacks.

@brendenshaw1744 Месяц назад

3:26 warp drives are created using great projectors that are made possible with AI that artificially mimic the space surrounding the space ship and it does so with divine accuracy and disrupting it and altering so it creates a shift and moving on a focal point with that projection until the destination is reached...

@An_Attempt Месяц назад

I like this idea and hope they get a chance to test it.

@Tinil0 Месяц назад

Not that I think it's the case, but wouldn't it be wild to ignore the higher frequency gravitational wave detectors for some time only to build the first and just be BOMBARDED with these signals all over the sky? Turns out the galaxy is super busy and loud, just on a frequency we had never listened to before!