Are Space Elevators Possible?
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Published 2020-07-18
This video is based on, and inspired on the amazing Illnois Energy Professors video of the same title: • Economics of Nuclear Reactor I highly recommend you subscribe and watch his collection of videos.
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Writer/Narrator: Brian McManus
Editor: Dylan Hennessy (www.behance.net/dylanhennessy1)
Animator: Mike Ridolfi (www.moboxgraphics.com/)
Sound: Graham Haerther (haerther.net/)
Thumbnail: Simon Buckmaster twitter.com/forgottentowel
References:
[1] m-newton.ex.ac.uk/research/qsystems/people/sque.to…
[2] images.spaceref.com/docs/spaceelevator/elevator.pd…
[3] pdfs.semanticscholar.org/d402/ba5f97884b7398ae2a1f…
[4] www.colorado.edu/faculty/kantha/sites/default/file…
Thank you to AP Archive for access to their archival footage.
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All Comments (21)
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arrives in space "oops wrong floor"
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Hey man, I remember subscribing to you in early high school, you only had around 1,300 subs and I saw your “this is engineering” video i’m now halfway through college pursuing aerospace aviation. can definitely say this channel has solidified my career path. thanks homie
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"The steel at its widest diameter would be wider then the known universe" well now that is a design challenge isn't it?
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Short answer: We have the maths and the engineering parameters but significantly lack in the building material strength to weight ratio category.
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"The space elevator will be built about 50 years after everyone stops laughing." - Arthur C. Clarke
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Real Engineering: *shows equations* Me (with very little physics knowledge): Ah, yes, OF COURSE!!
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Imagine taking the stairs when the elevators down! You'd be fit in no time!
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Isaac Arthur has me convinced that if we master cheap carbon nanotubes, graphene and fusion power then anything is possible lol.
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In the early 1990s, Clarke was asked when the space elevator would become a reality. He answered, “Probably about 50 years after everybody quits laughing.”
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Guess someone has been learning 3D modelling, seeing those starting Mustard-like animation.....😁😁😁
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I remembered one book I read about the space elevator that was "The Fountains of Paradise" (published in 1979) by Arthur C. Clarke. The original idea of the space elevator was from the deaf Russian scientist Konstantin Tsiolkovsky who was fascinated by the Eiffel Tower in Paris in 1895. 👍🤠👍
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One of my favourite videos of all time! Even though I'm not particularly interested in space, and I prefer to look at more earthly problems
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Me clicking on this video being 12: My dad: runs over seeing I “have interest” and teaching me EVERYTHING about engineering.
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I wrote a paper on space elevator feasibility in order to graduate highschool. It was such a difficult topic for me to wrap my head around so seeing you use the same sources, equations and coming to the same conclusions as I did was extremely gratifying. Oh and the sources on this topic vary widely in quality to the point of extreme frustration on my part.
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From my point of view, beside the issues you said about manufacturing this elevator I think some landing platforms will be needed at every 10000 meters for maintenance.
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I keep hearing "Daybreak's Bell" by L'arc en Ciel and seeing three superpowers build three of these things for their own gain and prestige.
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I really enjoyed this more math heavy episode. Though I wish you'd also done the examples for the Moon and Mars as they have lower gravity given people have suggested them for eventual manned bases
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To quote Tom Hardy's character in Inception: No, it's perfectly possible. It's just bloody difficult.
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This is why the foundation of Arthur C Clarke"s space elevator in The Fountains of Paradise was a new, miraculously strong and thin material, able to hold the weight of a man by a gossamer thread.
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Material constraints represent a real challenge for engineering nowadays maybe with the advancement of space colonization we can discover new materials that can help make these ambitious projects possible
