1,000km Cable to the Stars - The Skyhook

Kurzgesagt – In a Nutshell
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Sources: sites.google.com/view/sources-skyhooks/
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Getting to space is incredibly hard, expensive and needs a lot of resources.
A more efficient way to get there is a Skyhook (or Spacetether), an ever rotating cable with a counter weight, that catapults spaceships from earth orbit into the depths of space.
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17 Nov 2019



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Glover Productions
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Angga Habibi
Angga Habibi Vor 5 Tage
Subtitle Indonesia please
Joacquin Villar
Joacquin Villar Vor 5 Tage
@Lukas Kappich yes pls
Pedro Vitor Thomazini
Make a video listing the animals with the strongest bites
Lukas Kappich
Lukas Kappich Vor 5 Tage
Can you make a video, explaining the Higgs Particle / Higgs Field / God Particle?
Ashwin E
Ashwin E Vor 2 Stunden
I like the optimism in this video
CavCave Vor 3 Stunden
But is there oil on Mars to persuade the US to spend in space exploration?
Robert Mareczko
Robert Mareczko Vor 4 Stunden
I've been watching you for several years, but for a year Polish subtitles have been coming with a great delay, fix it
Big Fiji
Big Fiji Vor 8 Stunden
Can we all just spam Elon musk’s Twitter to design one of these
Linus Halpin
Linus Halpin Vor 8 Stunden
LameBrainMcCain Vor 9 Stunden
This looks very compelling! But... I'm not convinced it is depicted properly. I *think* the cable must go in and out ... to change the speed of the spacecraft by conserving angular momentum... just as a skater does by moving her arms in and out to increase/decrease rotational speed. So... when launching, the cable must be reeled into the center of the skyhook to increase the rotational velocity, and thus linear velocity of the spacecraft when it is released, so that it can escape the Earth's orbit. And conversely, returning spacecraft must be caught with a reeled in cable... and then reeled out, thus decreasing the linear velocity of the craft so that it can return safely to Earth. N'est ce pas?
xl Vor 15 Stunden
You conveniently forget to talk about the energy needed to descent from the tether at 5:29 It's not free.
xl Vor 15 Stunden
After Effects is not an animation software. It's for post production.
Trust Pax
Trust Pax Vor 15 Stunden
I have never seen that concept in a movie. But I never read science fiction, so I don t know how usual its placed there. Do someone know movies oor series that use that idea?
Ryan Skenandore
Ryan Skenandore Vor 16 Stunden
im writing a research paper on space exploration and all i need is your videos for sources... amazing and credible stuff i can write about.
Gatcha Bish
Gatcha Bish Vor 19 Stunden
Basically the world doesnt give a shit about making airplanes safe again and would rather fling society into space.. As if we dont need to search the ocean for those lost planes...
kodi lau
kodi lau Vor 22 Stunden
Im using this for my assesment
Fire Blade
Fire Blade Vor 23 Stunden
Ok when I’m a quadrillionaire in 50 years from asteroid mining by doing this, I’m going to thank you
What about the effect on the pilotes or do G for e not count because of a lack of gravity
Sanjid Rahman
But still how can we make send a hundred thousand kilometer long cable perfectly on earth? and even if we are catapulted astronauts would get sick rotating at such a speed...
Satan Lucifer
The big shipyeeter
Jitesh Verma
Jitesh Verma Vor Tag
Did you already pitch this idea to Elon Musk or I am good to go?
Eu Vor Tag
If Mars had spices, a random european dude would already found a way to there
Hoshigaki Kisame
wow very good video
qw3rty01 Vor Tag
2:49 it would get too hot from air *pressure*, not friction
Introducing, the ShipYeeter! it, uh, yeets ships into space.
*_Elon Musk wants to know your location_*
Bruno Cordeiro
Legendas em português do Brasil em todos os vídeos, por favor. Vocês não tem idéia de como e difícil bons divulgadores de conteúdo científico de qualidade em nosso idioma 😥. Exceto claro por alguns divulgadores, mas ainda são poucos.
Luq Vor Tag
Sometimes i get sad i'll never be able to see all of this
Alex Kumlin
Alex Kumlin Vor Tag
tethers are about as risky as being catapulted into the sky 1000km and landing in the spot you wanted. You can do the math for accuracy but do you trust the precision. Not only would you land but you would be refired and hope to land on your next destination for your "interstellar journey". For our tech the flinging would save on fuel but hopefully before we need to go through with building some system like this we find other ways to travel through our solar system
Alex Kumlin
Alex Kumlin Vor Tag
your animation is wrong on the 4:15 timeline it would hit the tether and push it back up to speed not get caught by the tether and released.
psammiad Vor Tag
Fascinating but many unanswered questions. Could we build a durable cable with current materials? How complex would it be to build and to deploy in orbit? What if it spun out of control and crashed? Are there any other safety risks? What if it got hijacked by people with malicious intent, could it be used as a weapon?
Guru Vor Tag
So just a space sling shot eh?????...
androkles04 Vor Tag
This is really interesting, and has left me wanting to know why it isn't a bigger talking point/closer to a practical solution if it's "that easy" and effective? Would've loved to see the video touch on that.
sebastian devosi
imagine missing the tether and now drifting into the emptiness and darkness of the space. that would be pretty scary
ShouryaG Vor Tag
Great idea
Phyzzius Vor Tag
It looks like a cool idea, but it's never going to happen. It's an engineering nightmare. First you would have to build the thing in space, using conventional rockets. Then you have to start spinning the thing, making sure you don't hit the literally thousands of satellites flying around earth. Even if you would manage all that, you *still* need a rocket to get your ship to an altitude to hook up with this thing, a maneuver which would be so difficult, I doubt anyone would be willing to try it (mind you, they take days to maneuver and dock a resupply ship to the ISS). But the fact you still need a rocket makes this a useless idea, more than two thirds of the delta-v you need to achieve escape velocity is to get into earth orbit. Why would you build such a complicated thing only to make the last bit of the trip more efficient? That effort is better put into building a refuelling station in orbit, which will also give your rocket more delta-v, but with much more manageable engineering challenges than this idea imho...
thatperson 001
thatperson 001 Vor 2 Tage
*In Dawkins his voice* This damned skyhookery again!
Ian T.
Ian T. Vor 2 Tage
So, wheres the hook? I`ll see myself out now
Eugenario Shek
Eugenario Shek Vor 2 Tage
*Elong Musk wants to know your location*
Issac Chan
Issac Chan Vor 2 Tage
Me as a English noob: space hooker
Theo Laanstra
Theo Laanstra Vor 2 Tage
This so so exciting!
Águila701 Vor 2 Tage
First everyone needs to switch over to the metric system to avoid messing up the precise calculations required.
LinkVsGaming b
LinkVsGaming b Vor 2 Tage
Why doesnt nasa hire them all ready
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