1,000km Cable to the Stars - The Skyhook

Pubblicato il 17 nov 2019
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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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  • To support Kurzgesagt and learn more about Brilliant, go to www.brilliant.org/nutshell and sign up for free. The first 688 people that go to that link will get 20% off the annual Premium subscription. Thanks to our friends from Brilliant for supporting this channel.

  • can you do a vid about plants that make there nucleus can make electricity,like literally its called power plants can you make like a electricity plant vid plz : )

  • See ya on mah quest to tether control mars

  • IF the burning up problem can be "fixed"... Could the thermal energy from having the tether lower be used to make electrical energy?

  • Quick someone show this video to Elon Musk !!

  • Hearing about real ways for us to reach the stars makes me weep with joy.

  • where are polish subtiles

  • Space hookshot

  • What about the acceleration while attached to the tether? Would it be within the rage humans can withstand?

  • Thank you Kurzgesagt, this video made my day. My optimism for the future has been restored.

  • Elon Musk : I'm going to use reusable rockets and invest my entire disposable wealth into it. Kurzgesagt : I'm about to end this man's entire career.

  • Take my money , make this happen NNNOOWWWWWW

  • I like the optimism in this video

  • But is there oil on Mars to persuade the US to spend in space exploration?

  • I've been watching you for several years, but for a year Polish subtitles have been coming with a great delay, fix it

  • Can we all just spam Elon musk’s Twitter to design one of these


  • 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?

  • You conveniently forget to talk about the energy needed to descent from the tether at 5:29 It's not free.

  • After Effects is not an animation software. It's for post production.

  • 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?

  • 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.

  • 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...

  • Im using this for my assesment

  • 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

  • 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...

  • The big shipyeeter

  • Did you already pitch this idea to Elon Musk or I am good to go?

  • If Mars had spices, a random european dude would already found a way to there

  • wow very good video

  • 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_*

  • 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.

  • Sometimes i get sad i'll never be able to see all of this

  • 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

  • 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.

  • 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?

  • So just a space sling shot eh?????...