Space Colonization Options (Orbiting Stations, planets/moons)

Discussion in 'Science and Technology' started by valkyrie013, Jan 28, 2021.

  1. KamenRiderBlade

    KamenRiderBlade Rear Admiral Rear Admiral

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    The falling panels were not a intentional Terrorist Attack, it was the side effect of one where the

    The Free-Electron Laser named "Memento Mori" mounted to the lower Orbital Ring was being used by the A-Laws, a Autonomous "Peace Keeping" force ran by the ESF (Earth Sphere Federation) which is the defacto World Government that has control over the Orbital Ring, Orbital Elevators, & all the Solar Power generated by the Solar Panels on the Outer Orbital Ring. The A-Laws were battling the rebel faction Katharon, who were opposed to the ESF and formed by many ex-military members from the previous 3 Major SuperNational PowerBlocs, who gathered together as a Anti-Authoritarian Government Resistance Group known as Katharon.

    The A-Laws were planing on using "Memento Mori" to wipe out Katharons bases on Earth by blasting them from orbit and has used the same laser to destroy the half of Katharon's 1st Space Fleet.

    Luckily "Celestial Being", the neutral and independent Armed Para Military group and the shows Protagonists was there to destroy the Super Weapon known as "Memento Mori".

    Break Pillar Incident
    Second Memento Mori

    However, that wasn't the only "Memento Mori" FEL in operation, there was a second unit hidden on the Oribtal ring that was part way through construction and months later, it was revealed and brought into operation.

    During the Federation Army's coup d'état attempt, in which the dissidents occupy the AEU's orbital elevator, La Tour, the A-Laws unveil another Memento Mori to destroy the elevator's low orbital station. Setsuna and Saji Crossroad sortied against the second Memento Mori in the 00 Raiser and tried to destroy it with the Raiser Sword. However, the attack only severely damaged the cannon, and it managed to fire and caused parts of the orbital elevator to collapse. Four months later, the repaired cannon was destroyed by 00 Raiser.
     
    Last edited: Jan 29, 2022
  2. Paul Weaver

    Paul Weaver Vice Admiral Premium Member

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    but not escape velocity. You’d be doing c 3kms (the upward vector of 300km/h doesn’t make much difference), you need an additional 1.3km/s to reach escape velocity from GEO, which is trivial with a constant acceleration up a tether from LEO, but materials mean you need magnetic coupling for that.

    I wouldn’t count carbon nanotubes as a single cable of 30cm as trivial, let alone of 30,000+km. still a way to go. Maybe in 50 years though, and I hope I’m proven wrong.
     
  3. Asbo Zaprudder

    Asbo Zaprudder Admiral Admiral

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    Yeah, just go farther along the cable and release where the rotational speed (v=rω) is higher:
    Transfer to Jupiter for further gravitational assist would require release from 100,000 km. For more information, see the PDF linked above.
     
  4. KamenRiderBlade

    KamenRiderBlade Rear Admiral Rear Admiral

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    I wonder how much energy the MagLev Tether Trains would need to haul a significant amount of cargo into space, let's say 150 Metric Tons?
     
  5. publiusr

    publiusr Admiral Admiral

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    Last edited: Apr 23, 2023
  6. Asbo Zaprudder

    Asbo Zaprudder Admiral Admiral

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    It's basically a problem of how much energy is expended carrying a mass up a very tall tower. Up to GEO, at least ma(r)h(r), where m is mass, a is the nett acceleration due to the combined effect of Earth's gravity and centrifugal force, which depends on the radial distance r from the centre of mass, and h is the difference in height between the Earth's surface and the release point. Any rotational energy can be "stolen" from the Earth via the cable. Beyond the GEO distance of 36,000 km, centrifugal acceleration for free can be used along the cable as the rotational velocity is higher than the orbital velocity for that distance. I'll do the integration calculation when I have the spare time. Someone probably already did it in the literature.

    ETA: From section V of PKASpace Elevators.pdf (wpi.edu):
    My calculations show an energy expenditure of about 48.4 MJ/kg (48.4 megajoules per kilogram) so 150 metric tons (150,000 kg) would require 7.26 TJ (terajoules) of energy to reach GEO using a space elevator.
     
    Last edited: Jan 30, 2022
  7. publiusr

    publiusr Admiral Admiral

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    A flyby rotorvator doing a skyhook payload snag would be something to see. Cable backspin and only a few hundred km long.

    That might lift a massive payload from the ocean with SRBs only used to get the payload going and to reduce cable strain, with an asteroid bola at the other end to wind it up.

    Might that lift an oil Derrick to LEO?
     
  8. Asbo Zaprudder

    Asbo Zaprudder Admiral Admiral

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    I would have thought air resistance - both of the cable and the payload - would be the main problem.
     
  9. Santaman

    Santaman Vice Admiral Admiral

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    Uugh, can't we just make a 300KM high mountain and be done with it? ;)
     
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  10. Gingerbread Demon

    Gingerbread Demon I love Star Trek Discovery Premium Member

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    Make it a pyramid shaped Arkology
     
  11. valkyrie013

    valkyrie013 Rear Admiral Rear Admiral

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    In 00, there's a low ring, and there's a station there.
    Was wondering what the gravity would be there?
    I think it said 10,000 km high. It would basically be a REALLY tall mountain, would you still have gravity pulling you down at that height? I think I saw something that you would still be at maybe .75 G even at that hight as your technically Not in freefall because your not at orbit velocity.
     
  12. Asbo Zaprudder

    Asbo Zaprudder Admiral Admiral

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    If stationary in a tower at the equator at R=16,371 km from the centre of the Earth (10,000 km + Earth radius of r = 6,371 km), the nett acceleration from gravitation (applying the inverse square law) and centrifugal acceleration would be:

    a = (g(r/R)²) - Rω²

    Acceleration due to gravity at Earth's surface g = 9.81 m/s²
    Angular velocity of Earth ω = 0.00007272 radians/s (2π radians per day)

    So a = (9.81*(6371/16371)²) - 16,371,000*(0.0000727)² = about 1.4 m/s² or 14% of g, slightly less than gravitational acceleration on the Moon (1.62 m/s²).
     
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  13. KamenRiderBlade

    KamenRiderBlade Rear Admiral Rear Admiral

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    I talk about the Orbital Tower & Ring from Gundam 00 in my post over here.
    There's 2x Orbital rings, one at 10k km, another at 40k km.

    I wonder, how would the Space Elevator compare to the equivalent Rockets to get the same cargo to space?

    I wonder how that would compare to Transporters.

    Obviously Transporters will have the Speed / Timeliness / Safety factor advantage for moving cargo.

    But Energy Efficiency to cover the same distance might be far worse in comparison to move a similar amount of cargo via Orbital Elevator & having Work Bee's move the objects back & forth between Storage Docks & your cargo holds.

    If you don't need a massive ton of cargo to be ready to go right away; going the slow route up to orbit via Space Elevator, then having Work Bee's move it from Orbital Docks to your Cargo Holds might be more energy efficient when time or energy costs aren't a critical factor.

    Kind of like modern shipping & logistics of Cargo Ships vs Air Transport for mass amounts of goods.

    There's a clear energy cost difference when moving each kg and cubic meter from A to B.
     
    Last edited: Jan 31, 2022
  14. Asbo Zaprudder

    Asbo Zaprudder Admiral Admiral

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    Or move mining, manufacturing, and construction off the Earth as soon as possible to stop having to drag megatonnes of stuff up out of its gravity well.
     
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  15. XCV330

    XCV330 Premium Member

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    if Ron Howard's film of Neil Stephenson's Seveneves does get made into a movie (that was supposed to happen , I haven't heard a peep since covid), there should be at least one significant scene involving using a rotorvator. It's a pretty big book and tucked towards the last section that honestly should be its own movie, so I don't know if we'd even get to that point. I don't want to say more about it as I am getting into a huge spoiler part of that novel.

    If moon mining ever became profitable, I could imagine a lunar rotovator being made. There are a lot of physical challengers for an Earth rotovator due to atmosphere.

    That's been my main issue with the idea of the SE. It's really only useful for cargo, and by the time a spacefaring civilization is well along and ready to build it, the infrastructure to do so out in orbit means it isn't really needed.

    It's a bit like the Tenn-Tombigbee Canal. An absolutely huge project. 234 miles long, 10 locks, 2 billion dollars (in 1970s money). Longer than the White Sea-Baltic or Suez Canals, connecting the Great Lakes, Mississippi, Ohio, and Tennessee Rivers to the Gulf. It should be one of the busiest most revenue generating megaprojects in history.

    https://www.marinetraffic.com/en/ais/home/centerx:-88.3/centery:33.9/zoom:9
    oh wait.

    but as you can see here, hardly anyone uses it. It was designed to wrong specs and pronostications about how shipping would work. Barge trains got bigger and wider, leaving the Lower miss as the only real economic option. Now it's just there, used just enough to keep it from being closed, and no one remembers or talks much about it. The railroads, so scared that it would bankrupt them that they tried to sue to keep it from being constructed, send freight over it on their own bridges hour after hour.
     
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  16. KamenRiderBlade

    KamenRiderBlade Rear Admiral Rear Admiral

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    It's never stated as to what the plates are made out of, but they're strong enough to stop most basic things like Wind, Birds, Insects, Rain, Radiation, probably low caliber stray bullets.

    They obviously don't survive Beam Rifle blasts since they get vaporized by them.

    It seems like the Foundation Series also has a "Terrorist" problem as well.
     
  17. KamenRiderBlade

    KamenRiderBlade Rear Admiral Rear Admiral

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    Ceramic Tiles would be a good option as Armored Panels against most basic things they need to protect a Orbital Tower.

    Cost, Mass, Replaceability, etc.

    Modern Body Armor uses ALOT of Ceramics to stop high caliber Full Powered Rifle Bullets.

    So I wouldn't be surprised if Space junk flying that fast hitting Ceramic Armored Tiles would be a good stopper of Space Junk flying really fast.
     
  18. XCV330

    XCV330 Premium Member

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    again more and more ridiculous H.G. Wells infrastructure for a device that would never really be needed.

     
  19. publiusr

    publiusr Admiral Admiral

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    That may change with the shipping crunch.

    The Alabama-USA Corridor is being looked at….and I am trying to get the word out about Birmingport.

    The new Earth Trojan asteroid may be of some use.

    Some other news blurbs: COSMIC PHYSICS BREAKTHROUGH SCIENTISTS PRODUCE PARTICLE ANTIPARTICLE PAIRS IN VACUUM.
    Omega1 is a new ICE motor….a novel printing process switches from black to transparent…Beyond sci-fi…manipulating liquid metals without contact (galinstan)

    Quantum gravity
    https://phys.org/news/2022-08-quantum-gravity.html

    Europa snow
    https://phys.org/news/2022-08-underwater-clues-europa-icy-shell.html

    op-ed
    https://phys.org/news/2022-08-outer-space-wild-west-peace.html

    Green tech
    How to remove 99% of CO2 from air
    https://techxplore.com/news/2022-02-game-changing-technology-carbon-dioxide-air.html
    https://sciencex.com/news/2022-02-week-darwinism-co2-air-covid-.html

    CO2-to gasoline
    https://phys.org/news/2022-02-catalyst-carbon-dioxide-gasoline-efficiently.html
    https://techxplore.com/news/2022-02-simple-breakthrough-accessing-hydrogen-efficient.html
    https://phys.org/news/2022-01-co2-chemicals.html
    https://techxplore.com/news/2022-01-decarbonisation-tech-instantly-co2-solid.html
    Australian researchers have developed a smart and super-efficient new way of capturing carbon dioxide and converting it to solid carbon, to help advance the decarbonisation of heavy industries.
    https://phys.org/news/2022-01-mini-electricity-quantum-dots.html
    https://phys.org/news/2022-02-energy-sun-solution-eventual-conversion.html
    https://phys.org/news/2022-02-conversion-carbon-dioxide-ethane-desired.html
    https://phys.org/news/2022-02-micrometer-sized-hydrogen-storage-particles-encased.html
    https://techxplore.com/news/2022-01-fuel-cells-temperatures-200c.html
    https://techxplore.com/news/2022-02-polymer-fuel-cells-higher-temperatures.html
    https://phys.org/news/2022-02-catalysts-hydrogen-fuel-cells-mainstream.html
    https://phys.org/news/2022-02-biofuel-contaminants-wastewater-hydrogen-fuel.html
    https://techxplore.com/news/2022-01-hydrogen-banana.html
    https://phys.org/news/2022-01-superabsorption-key-next-generation-quantum-batteries.html
    https://phys.org/news/2022-01-wide-visible-light-responsive-photocatalyst-boosts-solar.html
    https://phys.org/news/2022-01-kick-start-carbon-fiber.html

    New chemistry!
    https://phys.org/news/2022-01-clip-off-chemistry-powerful-strategy-materials.html

    For inner domes:
    https://phys.org/news/2022-03-fabricate-large-area-sky-blue-peleds.html

    Dyson Spheres
    https://phys.org/news/2022-05-dyson-spheres-white-dwarfs.html

    Astronaut study
    https://phys.org/news/2022-05-reveals-effect-space-flight-astronauts.html
    https://medicalxpress.com/news/2022-08-wearable-sensor-compounds-human.html

    Navigation
    https://phys.org/news/2022-05-spacecraft-x-rays-dead-stars.html

    Spacecraft concept
    https://www.space.com/apophis-spacecraft-laser-light-sail-2029

    Type I
    https://arxiv.org/abs/2204.07070

    Mars shielding
    https://phys.org/news/2022-06-shielding-surface-mars.html
    https://phys.org/news/2022-06-mars-base-asteroid-exploration.html

    Interiors are important
    https://techxplore.com/news/2022-06-urban-environments-virtual-reality-well-being.html

    Books on life science in space
    https://www.thespacereview.com/article/4396/1
    https://www.thespacereview.com/article/4388/1

    Energy tech
    https://techxplore.com/news/2022-07-iron-catalyst-hydrogen-fuel-cells.html
    https://techxplore.com/news/2022-07-method-materials-earth-friendly-energy.html
    https://phys.org/news/2022-07-lhcb-exotic-tetraquark.html

    Supergun
    https://www.secretprojects.co.uk/threads/bulbous-meat-rocket.39541/#post-540128

    Theranos for real?
    https://phys.org/news/2022-06-tiny-lab-chip-small-volumes.html

    Optical concentrator
    https://techxplore.com/news/2022-06-optical-solar-arrays-capture-cloudy.html

    Whisker crystals growth can hamper electronics
    https://phys.org/news/2022-06-scientists-unravel-mysterious-mechanism-whisker.html

    Batteries
    https://techxplore.com/news/2022-08-technique-faster-longer-next-generation-batteries.html

    Odd chemistry
    https://phys.org/news/2022-07-chemists-contrary-effect-diluting-solution.html
    However, TU/e researchers led by Bert Meijer accidentally discovered that their liquid solution turned into a hydrogel when diluted. This phenomenon hadn't been researched or described before and could have consequences in many areas in chemistry and biology.

    Cryo-preservation
    https://phys.org/news/2022-08-approach-advance-cryopreservation.html
    Carnegie Mellon University's Biothermal Technology Laboratory has a novel modeling approach for isochoric preservation to keep the work moving forward. Prem Solanki and Yoed Rabin have developed a new way of modeling the solidification of fluids in confined volumes, with applications to organ and tissue preservation.

    Let’s go to Mars
    https://www.marsdaily.com/m/reports/Lets_go_to_Mars_999.html
    https://phys.org/news/2022-08-harvesting-resources-mars-plasmas.html
    An international team of researchers came up with a plasma-based way to produce and separate oxygen within the Martian environment. It's a complementary approach to NASA's Mars Oxygen In-Situ Resource Utilization Experiment, and it may deliver high rates of molecule production per kilogram of instrumentation sent to space.
    https://phys.org/news/2022-08-mars-basis-life-problem-bacteria.html
    https://phys.org/news/2022-08-colonize-mars-outer-space-anthropologist.html
    https://www.marsdaily.com/m/reports...hod_for_landing_humans_on_Red_Planet_999.html

    New alloy
    https://phys.org/news/2023-04-alloys-successfully-strong-mechanical-bond.html
    https://phys.org/news/2023-04-3d-printed-alloy-resistant-stress-alloys.html

    Colorful solar panels
    https://techxplore.com/news/2022-08-solar-panels-technology.html
    as more buildings and public spaces incorporate photovoltaic technologies, their monotonous black color could leave onlookers underwhelmed. Now, researchers reporting in ACS Nano have created solar panels that take on colorful hues while producing energy nearly as efficiently as traditional ones.
    https://techxplore.com/news/2022-08-ammonia-perovskite-solar-panel.html healing panels

    https://www.nextbigfuture.com/2022/08/progress-to-higher-efficiency-thin-film-solar-cells.html

    Chemical map
    https://phys.org/news/2022-08-interactive-metabolical-synthesis-chemicals.html


    Beamed energy propulsion
    https://www.nextbigfuture.com/2022/...stellar-missions-possible-and-affordable.html

    Non-stick silk
    https://interestingengineering.com/...invent-extremely-efficient-non-stick-material
     
    Last edited: Apr 22, 2023
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  20. publiusr

    publiusr Admiral Admiral

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    This will help with spacesuits
    https://phys.org/news/2022-03-breakthrough-application-moisture-trapping-stress-personal.html
    https://phys.org/news/2022-04-impact-long-term-spaceflight-cerebrospinal-fluid.html

    Lunar soil to fuel
    https://weather.com/science/video/moon-soil-could-aid-in-creation-of-air-water-study-finds

    Landers
    https://phys.org/news/2022-04-tiny-precise-team-compact-device.html

    On time
    https://phys.org/news/2022-04-physicists-philosophers.html

    Bolides
    https://phys.org/news/2022-04-space-decades-bolide-nasa-planetary.html

    Soft crawlers
    https://techxplore.com/news/2022-04-soft-robotic-origami-crawlers.html

    Power
    https://techxplore.com/news/2022-04-scientists-perovskite-panels-space-power.html
    https://phys.org/news/2022-04-common-kitchen-spice-key-greener.html

    Denoiser
    https://techxplore.com/news/2022-04-urbandenoiser-ai-application-filters-city.html

    New catalysts
    https://phys.org/news/2022-04-class-catalysts-environmentally-friendly-coatings.html
    https://phys.org/news/2022-04-bacteria-settlements-mars.html
    https://phys.org/news/2022-04-spacesuit.html

    collider-sim
    https://phys.org/news/2022-04-team-simulates-collider-physics-quantum.html

    Small needle surgery
    https://medicalxpress.com/news/2022-04-invasive-precise-surgery-magnetic-needle.html
    https://phys.org/news/2022-04-robotic-swimmer-microorganisms-motion.html
    Nano rotor
    https://phys.org/news/2022-04-axle-rotor-nanomachine.html

    Small MRIs
    https://medicalxpress.com/news/2022-04-portable-mris-effective-standard.html

    Gasification
    https://phys.org/news/2022-04-extreme-carbon-hydrogasification-mechanochemistry.html

    Heat engine with no moving parts
    https://techxplore.com/news/2022-04-efficient-steam-turbine.html

    Laser pairing
    https://phys.org/news/2022-04-intense-laser-pairing-electrons.html

    Joystick robot
    https://techxplore.com/news/2022-04-joystick-operated-robot-surgeons-remotely.html
    https://medicalxpress.com/news/2022-04-california-start-up-tiny-robots-fantastic.html

    Pulsed power system
    https://techxplore.com/news/2022-04-disrupt-energy-health-industries-miniature.html

    Robo-vision
    https://phys.org/news/2022-05-imaging-method-tiny-robots-visible.html
    https://techxplore.com/news/2022-04-electric-eye.html
    https://phys.org/news/2022-04-rotating-blue-laser-reveals-unimagined.html
    https://techxplore.com/news/2022-04-method-robot-vision-occluded.html
    https://phys.org/news/2022-04-deeply-nanomaterials-3d-imaging-tool.html
    https://phys.org/news/2022-04-pixels-astronomers-surface-features-oceans.html
    https://medicalxpress.com/news/2022-04-cerenkov-luminescence-imaging-device-cancerous.html
    https://phys.org/news/2022-04-miniature-wide-angle-camera-flat-metalenses.html
    https://techxplore.com/news/2022-04-brain-inspired-neural-networks-based.html
    https://phys.org/news/2022-04-imaging-breakthrough-aid-quantum-microscopes.html
    https://phys.org/news/2022-04-prehistoric-creatures-record-setting-lenses.html
    https://techxplore.com/news/2022-05-thin-sensor-vision-based-micro.html
    https://phys.org/news/2022-05-metalens-disrupt-vacuum-uv.html

    Nanomagnetic computing
    https://phys.org/news/2022-05-nanomagnetic-low-energy-ai.html

    Lunar soil....fuel
    https://phys.org/news/2022-05-lunar-soil-potential-oxygen-fuel.html

    3D print antennas
    https://www.space.com/satellites-antennas-3d-printed-in-space

    Rust-proof iron
    https://www.odditycentral.com/trave...ear-old-iron-pillar-that-refuses-to-rust.html

    space industrialization


    Avatar’s ship
    https://www.nextbigfuture.com/2023/...ntimatter-rocket-design-is-a-real-design.html
     
    Last edited: Jan 22, 2023
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