Don't you dare tell me not to consume all of your video at once. Maybe I like being bombarded with a whole bunch of different theories at once. You don't know my life. And thank you for your content😊
When I first read this, it reminded me of when jacksepticeye played getting over it and commented on the jazz music. Funny compliment when he did it, and yours almost seem similar to his.
Truly an amazing space propulsion reference and one that will remain re-watchable for many years to come. Thank you all so much for putting this together ❤️
The Compendium of megastructures video was how I found this channel and how I became interested in Futurism and hypothetical technology. I watched most (maybe all?) of the video, promptly forgot about it for nearly a year, saw a Kurzgesagt video on some megaproject, and went to look up the Compendium again for a re-watch. Been addicted ever since. My only complaint is that these videos are SO DENSE I can't handle more than 1 or two a week, and sometimes even less than that before I feel my brain turning to much and telling me "you're not in class right now, you don't need to hurt me this much."
I find many of the explanations offered valuable foundations fir further exploration in Science Fiction . This is not only regarding propulsion methods but also in the associated technologies and societal interactions that would prove and benefit from one approach or another . Exciting stuff !
Your wife voice reminds me of a space RTS game I used to play back in 2005+ . I can't remember the name, but she has an excellent voice for all space things.
Now I know what I'll do for the next couple of hours, heh. Great stuff as always Speaking of vehicles, I'd like to suggest a video idea concerning land vehicle design for hazardous/extreme environments, like an icy planet or a desert one. Thanks!
I'm working in Antarctica on those types of vehicles, and I second this ! 😮 when I get home to Houston, I go back to the lab working on building test chambers for just this type of stuff.
Easily my new favorite channel. I will binge these videos until I stop playing Stellaris. Which Can be considered to be until the heat death of the universe. Love that game. And love this channel 😘
Another excellent presentation. I find them not only very informative but enjoyable as well. The entertainment angle far outweighs all the other venues out there!!!
I love the compendium episodes! I wake up early on Thursday to listen. But this is horrible- I don't have time to listen to it all in one sitting! A 97 minute drink from Issac's firehose of futurism. Fire hose
Atomic rockets mentions a variant of the nuclear-thermal rocket called "pulsed NTR" which could be really promising. Also, I had a specific impulse which propelled me to get a drink and a snack.
I always conflated hyperspace travel with worm holes because the paper demonstration implies an extra dimension through which the hole goes, until this explanation updated that for me. And an example of this that was right under my nose is the Nether in Minecraft: you get there and back by a portal, and every meter traveled nets you eight meters in the overworld, plus some shenaniganry with height that I don't really understand that lets people go from portal to portal by going back through the same portal.
When you enter the portal to the other gate or destination, you are jumping on the other dimensions as hyper space transportation. The speed of traveling through the portal always a variable speed of light in curved space.
I find many of the explanations & descriptions offered here to be valuable foundations for further exploration in Science Fiction . This is not only regarding propulsion methods and their tequirements and linitations , but also in the associated technologies and societal interactions that would provide and benefit from one approach or another . Exciting stuff !
Isaac you’re awesome, admittedly I rarely manage to finish every video thanks to a shit attention span and awful self confidence which just always convinces me I’m both not smart/creative enough to need to know this, and that there’s no point trying to stay involved in this topic because it’s all gonna end anyway. BUT your videos always manage to make me feel more hopeful for our future. I believe we’ll not make it to the stars but I deeply deeply hope we do make it, the universe is begging to be explored and all we need to do is spend 100 years of our civilisation solving our issues and coming together and that’s all we’d need to become a truly hopeful civilisation who understands the majesty of this weird universe and takes advantage of it! Thanks for keeping me hopeful Isaac, and I really hope that in the future someone could find your videos whilst orbiting a foreign star, grab some snacks and a drink, and sit back and listen to how much we already knew and how hopeful we’ve always been as a species!
We let psychopaths run the remnants of our civilatory project. We are in the middle of our singularity. Fewer and more intelligent people are the answer. We cant get there anymore. Game over unless we get the aliens to help us.
21:15 All this means that navigation will be very important since you don't want to miss some moving window way over there and is open for just a bit of time far in the future.
you can have multiple certain civilizations can have different ones and thanks to relativity you could see from what time a spaceship originates by looking at its drive.
What i am rolling around in my head for quite a while is, the bussard ramjet breakes the spaceship more by collecting hydrogen then it gets thrust out of the collected hydrogen. So if you do not use the hydrogen for a thruster and just use it for breaking, doesn't this make the bussard ramjet a reactionless breaking system?
I haven't seen any videos that address combinations of propulsion systems. Such as chemical rockets to overcome the gravity well, nuclear explosions for a while, then something that will take us closer to C. Does velocity effect using an A drive or other beyond C propulsion? Will speeds closer to C make it easier to induce a warp field-theoretically?
This reminds me - is it possible that Oumuamua simply had a large electric charge, making it accelerate in the solar wind? I think we didn't start tracking it until it was pretty far into the solar system, so could have missed the decelleration then, only seeing the acceleration on the way out. In fact, maybe it formed by attracting 'cosmic dust' over a long period - it's slow tumble would have led to it's elongated shape.
probably a fusion drive in tandem with laser sails. I'm guessing it wouldn't be uncommon to have robots setup an entire relay network to a star before a ship even left home.
I have ADHD so I don’t always remember to take care of my body and it’s basic needs, but when I get ready to watch this show, I always remember to grab a drink and a snack. Got it ready and I’m going to start the episode now! Thanks Isaac!
I'm afraid it's a youtube thing, most shows either let TH-cam do all their subtitles by auto-speech-to-text [which works horrible for my voice and our topics] or the have an existing .sbv file with timings built in. I upload the scripts as plain text and it assigns timings, and sometimes the longer ones take a while to load right or have weird timing errors.
Thank you so much for sharing such fascinating videos about the mysteries of the universe! I'm always in awe of the wonders that exist beyond our planet.
Entry Oxidizer lacks a few sentences. "Oxidisers such as Nitrogen tetroxide and Hydrogen Peroxide offer reduced performance for non cryogenic storeability. To achieve higher performance than oxygen, substances more electronegative and reactive such as fluorine and chlorine trifluoride have been tested. A pair of good running shoes is recommended. " ;)
So, the Bias Drive, even if possible,would likely cause a singularity in the center of the ship. Hmmm. . .I'm no physicist, but I gonna guess that would be less than ideal.😁
Quality content as always! I especially appreciate your wife joining you in this video to demarcate the sections with a voice change. More Mrs. Arthur!
Great video with massive amount of information. Thank you. I have to ask where does that accent come from. I have to slow down the vid to 0.75x to understand completely. You pronounce earth as ooerth haha. Almost Daffy Duck like.
seems like our best bet will be a combination of a high thrust, low efficiency fuel to hit escape velocity and maintain it long enough to escape planetary gravity at a high rate of speed, and then a high efficiency propulsion solution to accelerate upwards from escape velocity
Some of these are... exotic at best. That medusa drive breaks the laws of physics by not considering that the energy of a nuclear explosion will likely reach the spacecraft, pushing it the opposite way you want to go and making it push against the sail, leading it to break the thether, if it doesn't shred the sail entirely. Also neglecting the fact the the entire crew will be exposed to even more radiation than usual by the need to travel through a shroud of waste radiation every time they fire up their drive. The "safest" way for this to work is to put the ship in front of the shield (which would be a solid instead of the flappy sail), eliminating the thether and keeping the nuclear radiation behind, using the blast as propulsion in a much safer way. That would fit another type of propulsion mentioned before though... Well, some work better than others.
@@isaacarthurSFIA It would have to be reeeeeally far away from the tether to dissipate a nuclear blast enough for the counter-push force in the spacecraft to diminish. Considering the shape of the spacecraft as well to dissipate part of the force, it could work in theory, but I don't think it would be more practical than just blowing up a nuke behind a spacecraft instead of in front of it. Considering that there is no atmosphere to slow down the blast, the shockwave would have just keep travelling until it hit something, and in this design, you would force the crew to go through radioactive waste every time they travel, even if the shockwave is dissipated by the distance somehow.
Itdoesn't need to be really far away. Just enough that its crossection is much smaller than the sail, I'm not a huge fan of the design personally, just explaining it like all the others, but it's no different than an Orion drive in that regard except that it can use its normal forward shielding for blast protection and handling dust and gas at relativistic speeds, and doesn't need an extra wad of rear shielding like the Orion design has
The Alcubierre Warp Engine, my engine can be found in the center of Pluto. In Hell spaceship. We literally had to disassemble the engine and build it in the opposite direction to stop our ship.
I once had a dream where I knew I couldn't travel faster than the speed of light. I entered a fractal dimension where time and space were irrelevant. I could go wherever, whenever I wanted simply by moving one step forward. All I had to do was imagine, and it was. I miss my youth when I dreamed the impossible. Your subjects keep me hoping and dreaming that day may yet come to be.
This is possibly where the misconception of the negative energy/negative mass comes from. It does however require expanding the matter behind the ship for acceleration, or in front of it to stop. Negative energy is electrons which are a part of every atom. So if the warp drive requires negative mass or negative energy. Negative energy is in mass abundence and there would be no need for negative mass.
Would have liked to have seen Robert Duncan-Enzmann included in this list. The Enzmann Echolance was conceived in the 1970's and was suppressed by the US government. It really needs its own episode! You can read about it now in the book "Enzmann Echolance Reach for the Stars" Fascinating book. I have no affiliation, just a love for space exploration.
Why would the government suppress far future space travel technology ☠️ Who stands to gain anything from doing so Also, the echolance would need a lot of handwavium to work
VASMIR plus some kind of mass-reducing Clarktech would be a great combination. Reduce your ships mass to 1g and then VASMIR can scoot you along at relativistic speeds.
Hi Isaac, love your content. Do you think it would be possible to cool down a space habit within a star? If it's an option, it would make a lot of sense to build such habitats, if detection and overall protection is a concern for tech civs. Keep up the great work 👍
My first thought was David Brin's _Sundiver,_ which takes place aboard a ship that uses a laser heat sink to cool itself while plumbing the solar atmosphere.
Futurama: "after I figured out, the ship is still, it just move space" Sad thing is that getting somewhere takes longer then creating it locally. Still my best guess is that we find a way to reverse the process where space creates more space in betwean space and simply drag stuff towards us by literally sending back space whenc it came, sorta draging stuff towards us regardless of their mass without adding momentum, hopefully over area or plank speed.
I'm trying to figure out how you got the idea that nuclear pulse propulsion is relying on the photon pressure of the detonation rather than the shaped charge jet impacting the oil protected pushed plate.
The Conjoiner Drive would then be the most overachieving wormhole drive. You don't just skim hot gas off a star, you dip a straw into the big bang itself. How did they build those anyway, just found a bunch of micro wormholes that happened to have been made at the right time?
I think it was a wormhoel to a younger iteration of another universe though I think he intentionally didn't dip into too many details, but each drive is literally a conjoiner, they used people in them.
Salt Water Nuclear Rocket. Like an Orion drive, but continuous and more efficient. The fastest none clarktech propulsion design that’s possibly achievable.
I'd like to know what everyone thinks out of all these propulsion systems they think is the best and which one they think is most likely to happen in the near future?
I feel like being able to create artificial black holes would be best. You get propulsion and a near infinite power source in one since you can feed it gases collected from space and convert matter into energy without needing antimatter. That being said creating and controlling a tiny black hole would of course be very difficult and dangerous so perhaps multiple other options together are better.
Oh no Isaac, I wish you had covered Plasma Magnet(ic) sail instead of M2P2. Winglee M2P2 is generally considered unworkable, where the Slough Plasma Magnet-(ic sail) is considered to be vastly superior to M2P2. Kevin Hambsch
dislike the classification of Hawking radiation-based technology as not Clarke tech. Hawking radiation hasn't been counterindicated yet, but also it has not been observed. It's nearly Russell's Teapot.
Clarketech is more for stuff we have no scientific pathway to, HR is an unproven but well understood in terms of how it would operate. Though I'd agree it is in that category of things that really need to have some evidence supporting them given how casually many, myself included, discuss them like they were locked in.
Don't you dare tell me not to consume all of your video at once. Maybe I like being bombarded with a whole bunch of different theories at once. You don't know my life. And thank you for your content😊
I agree!
Lol
😂🎉🎉🎉🎉❤❤❤❤❤❤
Fo real fo real
When I first read this, it reminded me of when jacksepticeye played getting over it and commented on the jazz music. Funny compliment when he did it, and yours almost seem similar to his.
Truly an amazing space propulsion reference and one that will remain re-watchable for many years to come. Thank you all so much for putting this together ❤️
You can say that again!
The Compendium of megastructures video was how I found this channel and how I became interested in Futurism and hypothetical technology. I watched most (maybe all?) of the video, promptly forgot about it for nearly a year, saw a Kurzgesagt video on some megaproject, and went to look up the Compendium again for a re-watch. Been addicted ever since.
My only complaint is that these videos are SO DENSE I can't handle more than 1 or two a week, and sometimes even less than that before I feel my brain turning to much and telling me "you're not in class right now, you don't need to hurt me this much."
I think all of Issac Arthur shows are totally rewatch able
I find many of the explanations offered valuable foundations fir further exploration in Science Fiction . This is not only regarding propulsion methods but also in the associated technologies and societal interactions that would prove and benefit from one approach or another . Exciting stuff !
I ussually get three watches. It's interesting enough to engulf my mind and not ruminate or come up with nightmares as I fall asleep
Your wife voice reminds me of a space RTS game I used to play back in 2005+ . I can't remember the name, but she has an excellent voice for all space things.
She reminds me of the person from the game Outpost, which always gets me thinking of Mars bringer of war by Gustav Holst
And Majel Roddenberry
@@tompatierno5606 yup
I love this and the megastructure compendium. Thank you for continuing to inspire and educate myself and many others.
OMG Dude! I´m a games designer and having a definitive list of things is key. This is not just a great video, its an amazing resource!
Hm, a simple game where you manage the statite, on a star, and how many % of it are mirror for not falling/solar panel/nanobot miners factory
@@Слышьты-ф4юDyson swarm manager? Yes please!
I’m really hoping for an update to the Fermi Paradox Compendium like this one!
It's the next on the list but I am thinking Fall at the earliest and probably more like winter.
That one might get ferociously long - there's a lot of new videos since the last time they were compiled.
@Portal Opener so in which peer reviewed journal are you looking to publish these findings?
@@muninrob I wouldn’t complain if we got the SFIA equivalent to Lawrence of Arabia lol
Definitely looking forward that!
It's neat to see Sarah getting in on the action.
The couple that creates great content together, stays together, as they say.
sure, but just remember, 'they' can also be asshole kek
I had no idea they were a couple !
No, it’s not !
@@viciousstarfish
Wait, why not?
@@Chad_Thundercock IA can obviously do as he pleases, but she’s boring and no one else from his team speaks. It’s not working for me.
Supernova Drive..... And welcome to SFIA where we use scales order of magnitude more then you've ever seen in a movie!
Everything so well bookmarked. you are awesome, Isaac.
So nice to wake from your Hyperbunk to a new compendium episode.
Really eases the sickness from extended hyper sleep
"Make sure to grab a full-course buffet and a few pitchers" is more appropriate for this. Thanks, Isaac!
This is a great compilation, so I'm saving this. The narration was good, and your wife helping out amplified the points of the video well.
Now I know what I'll do for the next couple of hours, heh. Great stuff as always
Speaking of vehicles, I'd like to suggest a video idea concerning land vehicle design for hazardous/extreme environments, like an icy planet or a desert one. Thanks!
We have an episode "Mobile Cities" coming up, I might dip into some bigger vehicles there.
I'm working in Antarctica on those types of vehicles, and I second this ! 😮 when I get home to Houston, I go back to the lab working on building test chambers for just this type of stuff.
@Isaac Arthur, that would be awesome ! Thats kinda what i do for a living. It would be awesome to see your take on that subject 😊
Oh boy, how I love the longer episodes. Thanks Isaac, love from a Brazilian nerd.
I love the format, it seems like this could be cut and accessed as a real encyclopedia. Good stuff!
Easily my new favorite channel. I will binge these videos until I stop playing Stellaris. Which Can be considered to be until the heat death of the universe. Love that game. And love this channel 😘
Another excellent presentation. I find them not only very informative but enjoyable as well. The entertainment angle far outweighs all the other venues out there!!!
Great stuff, Isaac.
Don't forget David "Cool Worlds" Kipping's Halo Drive either (although technically more a manoeuvre than a drive).
Bias drive: large quantities of muons and tauons alter the fine structure constant in their local space. This is how to make the bias drive work.
Love your hours of space content Isaac!
Thanks for another masterpiece of thought-provoking wonders! Cheers all from Mcmurdo station Antarctica 🐧
Pretty awesome spot to watch such a cool video from!
Glad you enjoyed it! I always wanted visit there.
Good idea on having Sarah give the "See also" lines. It signifies a clear break to the next drive
I love the compendium episodes! I wake up early on Thursday to listen.
But this is horrible- I don't have time to listen to it all in one sitting!
A 97 minute drink from Issac's firehose of futurism.
Fire hose
Atomic rockets mentions a variant of the nuclear-thermal rocket called "pulsed NTR" which could be really promising. Also, I had a specific impulse which propelled me to get a drink and a snack.
WOW... going to have dinner before i watch this. it a freekin Movie.. thanx Isaac.
Excellent video. Glad your wife is joining you on it. Hope your family stays safe
So many propulsion options to choose from! So many stories waiting to be written!
A complete playlist of different future drive systems, along with their flaws! Today is a good day!
I always conflated hyperspace travel with worm holes because the paper demonstration implies an extra dimension through which the hole goes, until this explanation updated that for me. And an example of this that was right under my nose is the Nether in Minecraft: you get there and back by a portal, and every meter traveled nets you eight meters in the overworld, plus some shenaniganry with height that I don't really understand that lets people go from portal to portal by going back through the same portal.
Babylon 5 uses hyperspace as such and, often, demonstrates this well 👌
When you enter the portal to the other gate or destination, you are jumping on the other dimensions as hyper space transportation. The speed of traveling through the portal always a variable speed of light in curved space.
I find many of the explanations & descriptions offered here to be valuable foundations for further exploration in Science Fiction . This is not only regarding propulsion methods and their tequirements and linitations , but also in the associated technologies and societal interactions that would provide and benefit from one approach or another . Exciting stuff !
I loved what EVE online did with the explanation of their drives too, perhaps a fresh take on Gravity drives.....
Going to have to make myself one large lunch and drink to go with this tome of a video.
Making my Thursday great, wonderful work Isaac and team.
Isaac you’re awesome, admittedly I rarely manage to finish every video thanks to a shit attention span and awful self confidence which just always convinces me I’m both not smart/creative enough to need to know this, and that there’s no point trying to stay involved in this topic because it’s all gonna end anyway. BUT your videos always manage to make me feel more hopeful for our future. I believe we’ll not make it to the stars but I deeply deeply hope we do make it, the universe is begging to be explored and all we need to do is spend 100 years of our civilisation solving our issues and coming together and that’s all we’d need to become a truly hopeful civilisation who understands the majesty of this weird universe and takes advantage of it! Thanks for keeping me hopeful Isaac, and I really hope that in the future someone could find your videos whilst orbiting a foreign star, grab some snacks and a drink, and sit back and listen to how much we already knew and how hopeful we’ve always been as a species!
We let psychopaths run the remnants of our civilatory project. We are in the middle of our singularity. Fewer and more intelligent people are the answer. We cant get there anymore. Game over unless we get the aliens to help us.
21:15 All this means that navigation will be very important since you don't want to miss some moving window way over there and is open for just a bit of time far in the future.
Just finished the whole episode. Love your videos!
@isaacarthur I really enjoyed this video. It was one of the best that you have done yet. Thank you please keep forthcoming all your great content.
Just discovered your channel, perfect for background replay
Glad to see the inestimable Mr. Chung being referenced. Keep up the good work.
Super delighted to see one of these! Also delighted that at 51:27 it looks like a KSP screenshot
Been looking forward to this one for awhile! Been stuck on what type of propulsion my story should have hoping I can narrow my pick with this video.
I've been wondering what drive I should spend my billions of credits on.
you can have multiple certain civilizations can have different ones and thanks to relativity you could see from what time a spaceship originates by looking at its drive.
And... there goes the rest of my morning. Love it!
An hour and a half?! Nice! Definitely going to need a drink and a snack.
I feel like Sarah got tired of saying "drive" quite quickly! 😂
I suspect so, especially as I had her do two takes on everything so we only one sitting :)
54:51 truly world class production folks , bravo 🎉, nobody has done it better❤
What i am rolling around in my head for quite a while is, the bussard ramjet breakes the spaceship more by collecting hydrogen then it gets thrust out of the collected hydrogen. So if you do not use the hydrogen for a thruster and just use it for breaking, doesn't this make the bussard ramjet a reactionless breaking system?
Bell gang checking in, happy to be among the first, Isaac!
hell yea🎉
I haven't seen any videos that address combinations of propulsion systems. Such as chemical rockets to overcome the gravity well, nuclear explosions for a while, then something that will take us closer to C. Does velocity effect using an A drive or other beyond C propulsion? Will speeds closer to C make it easier to induce a warp field-theoretically?
This reminds me - is it possible that Oumuamua simply had a large electric charge, making it accelerate in the solar wind? I think we didn't start tracking it until it was pretty far into the solar system, so could have missed the decelleration then, only seeing the acceleration on the way out.
In fact, maybe it formed by attracting 'cosmic dust' over a long period - it's slow tumble would have led to it's elongated shape.
What drive do you think is the most likely for the first human interstellar trip?
probably a fusion drive in tandem with laser sails. I'm guessing it wouldn't be uncommon to have robots setup an entire relay network to a star before a ship even left home.
MHD
What?! No Infinite Improbability Drive?
16:24
I'd put it under Clarktech.
I literally just got done watching the Megastructures Compendium yesterday, and now you have another one out.
Grabbing my drinks and snacks brb.
I have ADHD so I don’t always remember to take care of my body and it’s basic needs, but when I get ready to watch this show, I always remember to grab a drink and a snack. Got it ready and I’m going to start the episode now! Thanks Isaac!
So are the "impulse engines" described in Star Trek referring to specific impulse then? I seem to remember Gene Roddenberry being a pilot......
Antimatter engines.
Always a treasure when you put out a compendium!
I hope next time we see Curvature propulsion added to a future update of this list.
I love compendium episodes but the subtitles are full of problems. Could you please fix them?
I'm afraid it's a youtube thing, most shows either let TH-cam do all their subtitles by auto-speech-to-text [which works horrible for my voice and our topics] or the have an existing .sbv file with timings built in. I upload the scripts as plain text and it assigns timings, and sometimes the longer ones take a while to load right or have weird timing errors.
Thank you so much for sharing such fascinating videos about the mysteries of the universe! I'm always in awe of the wonders that exist beyond our planet.
Entry Oxidizer lacks a few sentences. "Oxidisers such as Nitrogen tetroxide and Hydrogen Peroxide offer reduced performance for non cryogenic storeability. To achieve higher performance than oxygen, substances more electronegative and reactive such as fluorine and chlorine trifluoride have been tested. A pair of good running shoes is recommended. " ;)
I’m gonna need an advanced drive to escape this gravity well after all these snacks and drinks 😅
So, the Bias Drive, even if possible,would likely cause a singularity in the center of the ship.
Hmmm. . .I'm no physicist, but I gonna guess that would be less than ideal.😁
Quality content as always! I especially appreciate your wife joining you in this video to demarcate the sections with a voice change. More Mrs. Arthur!
Great video with massive amount of information. Thank you. I have to ask where does that accent come from. I have to slow down the vid to 0.75x to understand completely. You pronounce earth as ooerth haha. Almost Daffy Duck like.
Its so weird hearing another voice on this channel
seems like our best bet will be a combination of a high thrust, low efficiency fuel to hit escape velocity and maintain it long enough to escape planetary gravity at a high rate of speed, and then a high efficiency propulsion solution to accelerate upwards from escape velocity
Thank you both for an awesome video!!! :)
Glad you enjoyed it!
You know why I’m ok with my ex wife leaving me? She used to complain about your voice.
Some of these are... exotic at best.
That medusa drive breaks the laws of physics by not considering that the energy of a nuclear explosion will likely reach the spacecraft, pushing it the opposite way you want to go and making it push against the sail, leading it to break the thether, if it doesn't shred the sail entirely.
Also neglecting the fact the the entire crew will be exposed to even more radiation than usual by the need to travel through a shroud of waste radiation every time they fire up their drive.
The "safest" way for this to work is to put the ship in front of the shield (which would be a solid instead of the flappy sail), eliminating the thether and keeping the nuclear radiation behind, using the blast as propulsion in a much safer way.
That would fit another type of propulsion mentioned before though...
Well, some work better than others.
No, a skinny cylinder further from the explosion than the Medusa sail is would represent a small counter push
@@isaacarthurSFIA It would have to be reeeeeally far away from the tether to dissipate a nuclear blast enough for the counter-push force in the spacecraft to diminish. Considering the shape of the spacecraft as well to dissipate part of the force, it could work in theory, but I don't think it would be more practical than just blowing up a nuke behind a spacecraft instead of in front of it.
Considering that there is no atmosphere to slow down the blast, the shockwave would have just keep travelling until it hit something, and in this design, you would force the crew to go through radioactive waste every time they travel, even if the shockwave is dissipated by the distance somehow.
Itdoesn't need to be really far away. Just enough that its crossection is much smaller than the sail, I'm not a huge fan of the design personally, just explaining it like all the others, but it's no different than an Orion drive in that regard except that it can use its normal forward shielding for blast protection and handling dust and gas at relativistic speeds, and doesn't need an extra wad of rear shielding like the Orion design has
This is like a chapter of the Encyclopedia Galactica that fell into the past!
What form of drive provides you with the necessary specific impulse to continue making headway on all this wonderful content??
The Alcubierre Warp Engine, my engine can be found in the center of Pluto. In Hell spaceship. We literally had to disassemble the engine and build it in the opposite direction to stop our ship.
Truly a feast of information for my sci fi projects. Thank you!
Our pleasure!
Could we get an episode on why so many proposed drives, why no clear holy grail of drives, and your opinion on what engineers should be striving for?
I once had a dream where I knew I couldn't travel faster than the speed of light. I entered a fractal dimension where time and space were irrelevant. I could go wherever, whenever I wanted simply by moving one step forward. All I had to do was imagine, and it was. I miss my youth when I dreamed the impossible. Your subjects keep me hoping and dreaming that day may yet come to be.
…I JUST finished the mega structure compendium a couple hours before you uploaded this
This is possibly where the misconception of the negative energy/negative mass comes from. It does however require expanding the matter behind the ship for acceleration, or in front of it to stop. Negative energy is electrons which are a part of every atom. So if the warp drive requires negative mass or negative energy. Negative energy is in mass abundence and there would be no need for negative mass.
Usually, warp drive engine is besides the electronic and neutronic battery, where upon the negative energy extraction systems in the ship.
These compendium videos are crazy good
Would have liked to have seen Robert Duncan-Enzmann included in this list. The Enzmann Echolance was conceived in
the 1970's and was suppressed by the US government. It really needs its own episode! You can read about it now in the
book "Enzmann Echolance Reach for the Stars" Fascinating book. I have no affiliation, just a love for space exploration.
Why would the government suppress far future space travel technology ☠️
Who stands to gain anything from doing so
Also, the echolance would need a lot of handwavium to work
13:08: Isaac Arthur: the intersection of “FTL is probably impossible” and “who *only* plan to move a few percent of light speed”.
My favorite subject!
VASMIR plus some kind of mass-reducing Clarktech would be a great combination. Reduce your ships mass to 1g and then VASMIR can scoot you along at relativistic speeds.
Hi Isaac, love your content. Do you think it would be possible to cool down a space habit within a star? If it's an option, it would make a lot of sense to build such habitats, if detection and overall protection is a concern for tech civs.
Keep up the great work 👍
Maybe in a cooler orange or red dwarf, we talked about some of the options for that in colonizing the Sun.
@@isaacarthurSFIA thank you, I'll head right over 👍
My first thought was David Brin's _Sundiver,_ which takes place aboard a ship that uses a laser heat sink to cool itself while plumbing the solar atmosphere.
Having Sarah in videos compliments it well!
Futurama: "after I figured out, the ship is still, it just move space"
Sad thing is that getting somewhere takes longer then creating it locally.
Still my best guess is that we find a way to reverse the process where space creates more space in betwean space and simply drag stuff towards us by literally sending back space whenc it came, sorta draging stuff towards us regardless of their mass without adding momentum, hopefully over area or plank speed.
Have you considered negative matter is the same as antimatter? Negative energy is electrons explained in your video, contrary to positrons.
I found it touching that you and your wife worked on this together 😁
I'm trying to figure out how you got the idea that nuclear pulse propulsion is relying on the photon pressure of the detonation rather than the shaped charge jet impacting the oil protected pushed plate.
Thank you for the work that you do!! 😊😊 this is amazing
I see this episode going be long, and iteresting. Rwducing to normal speed from my regular 1.5 - 1.75. Don't want to miss a word.
The Conjoiner Drive would then be the most overachieving wormhole drive. You don't just skim hot gas off a star, you dip a straw into the big bang itself. How did they build those anyway, just found a bunch of micro wormholes that happened to have been made at the right time?
I think it was a wormhoel to a younger iteration of another universe though I think he intentionally didn't dip into too many details, but each drive is literally a conjoiner, they used people in them.
Salt Water Nuclear Rocket.
Like an Orion drive, but continuous and more efficient.
The fastest none clarktech propulsion design that’s possibly achievable.
I keep trying to use Isaac Arthur to sleep.... I keep losing sleep listening to Isaac Arthur.
I'd like to know what everyone thinks out of all these propulsion systems they think is the best and which one they think is most likely to happen in the near future?
'Best' is subjective. For what purpose?
I feel like being able to create artificial black holes would be best. You get propulsion and a near infinite power source in one since you can feed it gases collected from space and convert matter into energy without needing antimatter. That being said creating and controlling a tiny black hole would of course be very difficult and dangerous so perhaps multiple other options together are better.
You should do a ship build in Starfield. Would love to hear you cover some of the lore
THANK YOU for this Isaac.
This is absolutely incredible. Wow
TY SFIA! I I am going to need more snacks before I watch this one BRB.
Oh no Isaac, I wish you had covered Plasma Magnet(ic) sail instead of M2P2.
Winglee M2P2 is generally considered unworkable, where the Slough Plasma Magnet-(ic sail) is considered to be vastly superior to M2P2.
Kevin Hambsch
There's one drive that has been missed:
The Vegan Drive.
Fuelled by beans, lots and lots of beans.
In the Vegetarian Drive, the fuel may be partially replaced by eggs, lots and lots of eggs.
dislike the classification of Hawking radiation-based technology as not Clarke tech. Hawking radiation hasn't been counterindicated yet, but also it has not been observed. It's nearly Russell's Teapot.
Clarketech is more for stuff we have no scientific pathway to, HR is an unproven but well understood in terms of how it would operate. Though I'd agree it is in that category of things that really need to have some evidence supporting them given how casually many, myself included, discuss them like they were locked in.