SPACE ELEVATOR

Many of us dream of a future for humanity in space, a civilization spanning multiple worlds and perhaps one day even star systems. But even with reusable rockets, the expense of lifting huge structures into orbit truncates our vision. Space elevators have long held promise as a possible solution, but the need for incredibly strong materials has made them a distant prospect. Today, Cool Worlds graduate student (soon to be postdoc!) Emily Sandford describes an alternative but related concept - the lunar space elevator. With no obvious technological hurdles preventing it's construction, this could be realized in our lifetimes - either for good, or for bad... Written and Presented by Emily Sandford. All space elevator images/videos shown are artistic impressions and not real photographs. References: ► Penoyre, Zephyr and Sandford, Emily (2020), "The Spaceline: a practical space elevator alternative achievable with current technology", Acta Astronautica, submitted: https://arxiv.org/abs/1908.09339 ► Pearson, J. (1979), "Anchored lunar satellites for cislunar transportation and communication", Journal of the Astronautical Sciences, 27, 39: https://ui.adsabs.harvard.edu/abs/1979JAnSc..27...39P/abstract ► Eubanks, T. M. and Radley, C. F. (2016), "Scientific return of a lunar elevator", Space Policy, 37, 97: https://arxiv.org/abs/1609.00709 Video materials and graphics used: ► ESA animation of identified space debris by the US Space Surveillance Catalogue: https://www.esa.int/Safety_Security/Space_Debris/Recognising_sustainable_behaviour ► SRM Robotics video of robot climbing rope: https://youtu.be/JxBWXOBbXFg ► Kerbal Space Program videos by maccollo (https://youtu.be/mrjpELy1xzc) and SWDennis (https://youtu.be/Ko9V8-3iwWM) ► Astronaut space walk courtesy of NASA TV ► Gravity well animation by Rob Fitzel: https://youtu.be/0iY-KrHsUoE Outro music used, in chronological order: ► "Always Dreaming" by Caleb Etheridge, licensed through SoundStripe.com: https://app.soundstripe.com/songs/5534 And also... ► Columbia University Department of Astronomy: http://www.astro.columbia.edu ► Cool Worlds Lab website: http://coolworlds.astro.columbia.edu Latest Cool Worlds Videos ► http://bit.ly/NewCoolWorlds Cool Worlds Research ► http://bit.ly/CoolWorldsResearch Cool Worlds Long Form Videos ► http://bit.ly/CoolWorldsEssays Guest Videos ► http://bit.ly/CoolWorldsGuests Q&A Videos ► http://bit.ly/CoolWorldsQA Tabby's Star ► http://bit.ly/TabbysStar Science of TV/Film ► http://bit.ly/ScienceMovies SUBSCRIBE to the channel http://bit.ly/CoolWorldsSubscribe THANKS FOR WATCHING!! #LunarElevator #SpaceElevator #CoolWorlds

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A space elevator sounds like science fiction, but scientists are still actively trying to make it a reality. Here’s what you need to know. Is This New Super Carbon Better Than Graphene? - https://youtu.be/FWENEXM5S3E Read More: Going up! Japan to test mini 'space elevator' https://phys.org/news/2018-09-japan-mini-space-elevator.html “If all goes well, it will provide proof of concept by moving along a 10-metre cable suspended in space between two mini satellites that will keep it taut. The mini-elevator will travel along the cable from a container in one of the satellites.” Space Elevators Are Totally Possible (If Someone Will Just Pay for It) https://motherboard.vice.com/en_us/article/8qxzv5/space-elevators-are-totally-possible-if-someone-will-just-pay-for-it “A space elevator is exactly what it sounds like: an unbroken ribbon roughly one hundred million times as long as it is wide, stretching all the way from Earth to geosynchronous orbit (GEO). They're intended to do to the solar system what railroads did to the continent, allowing 20-ton electric elevator 'cars' to pull themselves into space for a fraction of the cost of an orbital rocket.” Space Elevators Getting First Test in Space https://www.popularmechanics.com/space/satellites/a22985989/space-elevators-getting-first-test-in-space/ “Researchers at Shizuoka University, working in conjunction with the Japan Aerospace Exploration Agency (JAXA), will begin trials on a miniature version of a space elevator next week. The test is very small and simple, the tiniest step towards an actual elevator to the stars.” ____________________ Elements is more than just a science show. It’s your science-loving best friend, tasked with keeping you updated and interested on all the compelling, innovative and groundbreaking science happening all around us. Join our passionate hosts as they help break down and present fascinating science, from quarks to quantum theory and beyond. Seeker explains every aspect of our world through a lens of science, inspiring a new generation of curious minds who want to know how today’s discoveries in science, math, engineering and technology are impacting our lives, and shaping our future. Our stories parse meaning from the noise in a world of rapidly changing information. Visit the Seeker website https://www.seeker.com/videos Elements on Facebook https://www.facebook.com/SeekerElements/ Subscribe now! http://www.youtube.com/subscription_center?add_user=dnewschannel Seeker on Twitter http://twitter.com/seeker Seeker on Facebook https://www.facebook.com/SeekerMedia/ Seeker http://www.seeker.com/

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Today we look at using Space Towers, Buoyant Structures, Airships, and Space Fountains as means of launching spaceships, as well as their other applications to create enormous structures that normal materials could never permit. Visit our Website: http://www.isaacarthur.net Join the Facebook Group: https://www.facebook.com/groups/1583992725237264/ Support the Channel on Patreon: https://www.patreon.com/IsaacArthur Visit the sub-reddit: https://www.reddit.com/r/IsaacArthur/ Listen or Download the audio of this episode from Soundcloud: https://soundcloud.com/isaac-arthur-148927746/space-towers Cover Art by Jakub Grygier: https://www.artstation.com/artist/jakub_grygier Graphics Team: Jarred Eagley Katie Byrne Misho Yordanov Murat Mamkegh Sergio Botero Stefan Blandin Script Editing: Andy Popescu Connor Hogan Edward Nardella Eustratius Graham Gregory Leal Jefferson Eagley Luca de Rosa Michael Gusevsky Mitch Armstrong MolbOrg Naomi Kern Philip Baldock Sigmund Kopperud Steve Cardon Tiffany Penner Music: Sergey Cheremisinov, "Sirius" Kai Engel, "Endless Story about Sun and Moon" Koalips, "Kvazar" Markus Junnikkala, "A Memory of Earth" Dan McLeod, NeptuneUK, "Mysterious Universe"

In this episode we examine the concept of a Space Elevator, a popular piece of developing technology designed to lift people and cargo into space at a fraction of normal launch costs. We will look at technology as well as many of the misconceptions about Space Elevators which have emerged. "The physics of the space elevator", P. K. Aravind: https://pdfs.semanticscholar.org/d402/ba5f97884b7398ae2a1ff79136f9c1a03993.pdf Visit our Website: http://www.isaacarthur.net Join the Facebook Group: https://www.facebook.com/groups/1583992725237264/ Support the Channel on Patreon: https://www.patreon.com/IsaacArthur Visit the sub-reddit: https://www.reddit.com/r/IsaacArthur/ Listen or Download the audio of this episode from Soundcloud: https://soundcloud.com/isaac-arthur-148927746/upward-boundspace-elevators Cover Art by Jakub Grygier: https://www.artstation.com/artist/jakub_grygier

The first installment in a new series discussing alternative means of getting in space, from better rockets to massive structures like Space Elevators, Skyhooks, and Launch Loops. Visit our Website: http://www.isaacarthur.net Join the Facebook Group: https://www.facebook.com/groups/1583992725237264/ Support the Channel on Patreon: https://www.patreon.com/IsaacArthur Visit the sub-reddit: https://www.reddit.com/r/IsaacArthur/ Listen or Download the audio of this episode from Soundcloud: https://soundcloud.com/isaac-arthur-148927746/upward-bound-getting-into-space Cover Art by Jakub Grygier: https://www.artstation.com/artist/jakub_grygier Music by Intro/Outro: Sergey Cheremisinov "Sirius" Kai Engel "Endless Story about Sun and Moon" Koalips "Kvazar" Frank Dorittke "Morninglight" Kevin MacLeod "Spacial Winds"

What happens when you keep building a skyscraper higher and higher? You may run into some problems with the laws physics. The higher you build, the faster the top of the building moves around the earth, and you end up with strong centrifugal forces. What could possibly go wrong? Subscribe to Physics Girl for more fun physics! https://www.youtube.com/subscription_center?add_user=physicswoman Creator/Writer: Dianna Cowern Animator: Kyle Norby Writer/Researcher: Sophia Chen Editor: Jabril Ashe Thanks to Kyle Kitzmiller for 3D-printing the props for this video! Check out VSauce’s vide on tall things that exist on our planet: https://www.youtube.com/watch?v=GJ4Qp2xeRds http://physicsgirl.org/ http://twitter.com/thephysicsgirl http://facebook.com/thephysicsgirl http://instagram.com/thephysicsgirl Music: APM Stock Images: pixabay.com and clker.com

PEMBROKE, ONTARIO, CANADA — A Canadian space company wants to build a space elevator that reaches 20 kilometers high. The company is called Thoth and the concept is called the Thoth X tower. The idea is to build a tower with reinforced inflatable sections. The middle is hollow. An elevator car would encircle the tower until it reaches the top. Thoth estimates the tower would cost $5 billion to construct. As a demonstration project, it would build a precursor tower measuring 1.5 kilometers tall. One feature of the project is the wind farm about three quarters of the way up. The 50 turbines could produce 1 gigawatt of continuous energy. That’s enough to power about 700,000 homes. The main purpose of the tower is to provide a take-off and landing platform for spacecraft. If your aircraft takes off at a 20 kilometer altitude, you can get to space in a single stage without the need for additional fuel stages. Thoth estimates this would save 30% on energy costs. ----------------------------------------­--------------------- Welcome to TomoNews, where we animate the most entertaining news on the internets. Come here for an animated look at viral headlines, US news, celebrity gossip, salacious scandals, dumb criminals and much more! Subscribe now for daily news animations that will knock your socks off. Visit our official website for all the latest, uncensored videos: http://us.tomonews.com Check out our Android app: http://bit.ly/1rddhCj Check out our iOS app: http://bit.ly/1gO3z1f Get top stories delivered to your inbox everyday: http://bit.ly/tomo-newsletter See a story that should be animated? Tell us about it! Suggest a story here: http://bit.ly/suggest-tomonews Stay connected with us here: Facebook http://www.facebook.com/TomoNewsUS Twitter @tomonewsus http://www.twitter.com/TomoNewsUS Google+ http://plus.google.com/+TomoNewsUS/ Instagram @tomonewsus http://instagram.com/tomonewsus -~-~~-~~~-~~-~- Please watch: "Crying dog breaks the internet’s heart — but this sad dog story has a happy ending" https://www.youtube.com/watch?v=4prKTN9bYQc -~-~~-~~~-~~-~-

Astrophysicist and science communicator Neil deGrasse Tyson explains on the program NOVA ScienceNow how a Space Elevator could be constructed. You will see that travel from earth to space is possible through a space elevator. This future technology will change our ways by which we go to space. You will also be able to travel to space via this space elevator technology just by buying a ticket to space. In this video explore the potential of carbon nanotubes, whose strength and unique properties make them useful for a variety of applications. See animations of how carbon atoms bond to one another in different ways to make diamond, graphite, buckyballs, and nanotubes, and observe one method that is being researched to form and assemble carbon nanotubes into a long ribbon. Consider how a seemingly impossible application, such as an elevator from the surface of Earth to space, is now theoretically possible given this revolutionary new building material. It costs about $500 million to take the space shuttle out for a spin. But what if there was another way to get to space? And what if that way were as easy and as cheap as riding an elevator? Well, some people think this kind of trip might be possible someday, thanks to something known as the Space Elevator, a 22,000-mile-long cable that could lift people and payloads straight to outer space.

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Die European Space Elevator Challenge (EUSPEC) 2012 fand im Oktober 2012 an der Technischen Universität München (TUM) in Garching statt. Mehr Infos gibt es unter http://euspec.warr.de.

Die European Space Elevator Challenge 2011 fand im August 2011 an der Technischen Universität München (TUM) in Garching statt. Mehr Infos gibt es unter http://euspec.warr.de.

The third European Space Elevator Challenge will take place from September 12th to 15th, 2016 at the Technical University of Munich (TUM). Teams have to build a climber that reaches the top of a 100 m rope, suspended from a gas balloon, while being as energy efficient and carrying as much payload as possible. For further information visit http://euspec.warr.de. Spectators are welcome! The competition is organized by WARR e.V., the Scientific Work Group for Rocketry and Space Flight at TUM, in cooperation with Vestner Aufzüge GmbH. Vestner Aufzüge: http://www.vestner.de Hochhinaus Luftwerbung: http://www.hochhinaus.de Linde: http://www.linde.de Aliens Bergsport: http://www.aliens-outdoor.de TENDON: http://www.mytendon.eu Güth & Wolf: http://www.gueth-wolf.de Teijin Aramid: http://www.teijinaramid.com Technische Universität München - Fakultät für Maschinenwesen: http://www.mw.tum.de Wiese Foto + Film: http://www.wiesefotofilm.de DGLR: http://www.dglr.de BESL Arbeitsbühnen & Stapler: http://www.arbeitsbuehnen-besl.de

New videos DAILY: https://bigth.ink Join Big Think Edge for exclusive video lessons from top thinkers and doers: https://bigth.ink/Edge ---------------------------------------------------------------------------------- Bill Nye answers a question submitted by Nick: is it possible to take two giant magnets and use the repulsion force between them to lift objects into space? Or can we set up stages along the way and use the attraction and repulsion force to build a space elevator to the moon, or anywhere else we may want to go? ---------------------------------------------------------------------------------- BILL NYE Bill Nye, scientist, engineer, comedian, author, and inventor, is a man with a mission: to help foster a scientifically literate society, to help people everywhere understand and appreciate the science that makes our world work. Making science entertaining and accessible is something Bill has been doing most of his life. In Seattle Nye began to combine his love of science with his flair for comedy, when he won the Steve Martin look-alike contest and developed dual careers as an engineer by day and a stand-up comic by night. Nye then quit his day engineering day job and made the transition to a night job as a comedy writer and performer on Seattle’s home-grown ensemble comedy show “Almost Live.” This is where “Bill Nye the Science Guy®” was born. The show appeared before Saturday Night Live and later on Comedy Central, originating at KING-TV, Seattle’s NBC affiliate. While working on the Science Guy show, Nye won seven national Emmy Awards for writing, performing, and producing. The show won 18 Emmys in five years. In between creating the shows, he wrote five children’s books about science, including his latest title, “Bill Nye’s Great Big Book of Tiny Germs.” Nye is the host of three currently-running television series. “The 100 Greatest Discoveries” airs on the Science Channel. “The Eyes of Nye” airs on PBS stations across the country. Bill’s latest project is hosting a show on Planet Green called “Stuff Happens.” It’s about environmentally responsible choices that consumers can make as they go about their day and their shopping. Also, you’ll see Nye in his good-natured rivalry with his neighbor Ed Begley. They compete to see who can save the most energy and produce the smallest carbon footprint. Nye has 4,000 watts of solar power and a solar-boosted hot water system. There’s also the low water use garden and underground watering system. It’s fun for him; he’s an engineer with an energy conservation hobby. Nye is currently the Executive Director of The Planetary Society, the world’s largest space interest organization.   ---------------------------------------------------------------------------------- TRANSCRIPT: Nick: Nick here. I was wondering if it’s possible to take two giant magnets and use the repulsion force between the two to lift objects into space or can we set up stages along the way up and how that attraction and repulsion force send a type of space elevator up to the moon or anywhere we want to go. Let me know what you think. Bill Nye: Nick, Nick, Nick. This is an interesting question. Let me say though starting out we all when you play with magnets and you feel the repulsive force it seems strong. But notice that it acts over a very short distance. Just nominally it goes – it’s not perfect but you can estimate it by saying it goes off as the cube of the distance. So if you have magnets this far apart and you make them twice that far apart they only haven an eighth as much umph. So using a magnet to push things up as high as the atmosphere would take an enormously strong magnet and where would that energy come from? And to give you an idea of the kind of energy we’re talking about the particle collider in Switzerland which we call CERN, the Center for Nuclear Research but in French the adjective is at the end. That takes the electricity of a small city to keep protons going in a circle, just protons. So just imagine how much magnetism you would need to push something of reasonable mass up into the sky. It would take a huge amount of energy. So shooting from the hip I’d say it’s really not possible. With that said I like the way you think. Then you also referred to using stages to get the magnet, this magnetic car or craft pushed up. Keep in mind that whatever you push it up from has to be pushed from a place which is somehow anchored to the Earth or magnetically repulsed from the Earth. So it becomes really difficult practically to have a stack of magnets that’s stable that has all that energy required to create that much magnetism. You probably couldn’t do it. But that’s very creative. That was cool. Carry on Nick.

Animation of ThothX space tower (US patent 9,085,897) featuring innovative elevator mounting method (US patent 9,403,607). "Elevator" song by UK band, Space Elevator (http://spaceelevatorband.com/), featuring the Duchess and David Young. Animation by Image-S media (http://image-s.ca/). For more information on Thoth Technology Inc. visit thothx.com (http://thothx.com).

Join the National Marrow Donation Program: http://join.marrow.org/practical Trying sometime a little different this time - animation. Thanks to my friend, James, for the idea. Diving into the "meat and potatoes" of engineering this literal stairway to the heavens: the Space Elevator. Hope you enjoy it! Don't forget to watch Kurzgesagt's excellent video on the Space Elevator here: https://www.youtube.com/watch?v=qPQQwqGWktE (Sorry for the jab guys!) They say the devil’s in the details, but that’s not really true for the space elevator. The biggest hang ups in this concept are the most fundamental aspects of its design: the mass of the counterweight, getting power to the climber, the strength of the tether. If it ever does happen, it will be creative and passionate engineers leading the way. Thanks for watching and let me know what you think! Website: http://practical.engineering Patreon: http://patreon.com/PracticalEngineering Music: RSF - Backfire (https://www.youtube.com/watch?v=4dvHuTRBSa0) Sources: http://www.niac.usra.edu/files/studies/final_report/472Edwards.pdf http://www.spaceward.org/documents/papers/SEFC.pdf http://www.spaceward.org/documents/papers/SEPSAO.pdf https://pdfs.semanticscholar.org/d402/ba5f97884b7398ae2a1ff79136f9c1a03993.pdf Errata: -The Clarke Belt is misspelled. -At 1:40 the earth is spinning in the wrong direction. -Kurzgesagt is misspelled.

Use the URL: http://www.squarespace.com/nutshell for 10% with a new website and support this channel. Also make your life easier. Thanks a lot to Squarespace for supporting the show! So. Space elevators. Are they are thing that we should talk about? Support us on Patreon so we can make more videos (and get cool stuff in return): https://www.patreon.com/Kurzgesagt?ty=h Steady: https://steadyhq.com/de/kurzgesagt Merchandise:  https://shop.kurzgesagt.org Newsletter: http://eepurl.com/cRUQxz Facebook: http://bit.ly/1NB6U5O Twitter: http://bit.ly/2DDeT83 Instagram: http://bit.ly/2DEN7r3 Discord: https://discord.gg/cB7ycdv The Voice of Kurzgesagt: Steve Taylor: http://voice-pool.com/en/english/ Get the music of the video here: Soundcloud: http://bit.ly/1WhDctc Bandcamp: http://bit.ly/1RIAV8B http://www.epic-mountain.com THANKS A LOT TO OUR LOVELY PATRONS FOR SUPPORTING US: Margaret A. Romoser, Peter Poier, Lorenz Spenger, Trivikram Kamat, Jens-Christian Huus, darkskuld, Pidgeon Pie is a Lie, Mallory Connors, Bruno C. Valdes, L4m3ness, Nicholas Lalka, Jens Christian Laursen, Jack Dicune, Av Yu, Tom de Bruijn, Viktor Stanchev, shawn wali, Brent Evans, Juan Pablo Desentis, Scott Edwards, Mark Litchfield, Jay Horner, Scott Mitchell, Mustafa Kuroglu, MEAL . LYF, Furkan Akyol, Alex Amster, Nathan O’Connor, Ethan Harris, Christopher Foss, Thomas, Mírzan Campos Duarte, Andrew Pajic, kcdg.dave, Sean Drzewiecki, Jimmy Kneifl, Machtkampf, Daniel Slabík, Lucas "RM/HPS" Hill, Jannis Krämer, Robby Gottesman, Andrew Coleman, Scott Duchesneau *Space Elevator – Science Fiction or the Future of Mankind?* #Help us caption & translate this video!# http://www.youtube.com/timedtext_cs_panel?c=UCsXVk37bltHxD1rDPwtNM8Q&tab=2

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Aug. 21 -- Today’s "BWest Byte" is 12, for Thoth Technology's planned 12-mile high space elevator. Bloomberg Businessweek's Brad Stone reports on "Bloomberg West." -- Subscribe to Bloomberg on YouTube: http://www.youtube.com/Bloomberg Bloomberg Television offers extensive coverage and analysis of international business news and stories of global importance. It is available in more than 310 million households worldwide and reaches the most affluent and influential viewers in terms of household income, asset value and education levels. With production hubs in London, New York and Hong Kong, the network provides 24-hour continuous coverage of the people, companies and ideas that move the markets.