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• 11:01, 3 April 2024 Lwcamp talk contribs uploaded File:Hypervelocity projectile.png (BAE Systems railgun hypervelocity projectile, with (left) and without (right) its sabot. Images from Congressional Research Service report R44175, cropped, flipped, and rotated. https://crsreports.congress.gov/product/pdf/R/R44175/77)
• 10:41, 3 April 2024 Lwcamp talk contribs created page File:Railgun projectile 2.png (Credit: Laura Guerin Source: cK-12 Foundation License: [https://creativecommons.org/licenses/by-nc/3.0/ CC BY-NC 3.0])
• 10:41, 3 April 2024 Lwcamp talk contribs uploaded File:Railgun projectile 2.png (Credit: Laura Guerin Source: cK-12 Foundation License: [https://creativecommons.org/licenses/by-nc/3.0/ CC BY-NC 3.0])
• 10:40, 3 April 2024 Lwcamp talk contribs created page File:Railgun projectile 1.jpg (Reference: Fair, H. “Transitioning EM Railgun Technology to the Warfighter.” The University of Texas at Austin, May 2007.)
• 10:40, 3 April 2024 Lwcamp talk contribs uploaded File:Railgun projectile 1.jpg (Reference: Fair, H. “Transitioning EM Railgun Technology to the Warfighter.” The University of Texas at Austin, May 2007.)
• 08:06, 3 April 2024 Lwcamp talk contribs created page File:EMRG prototype.png (BAE prototype EMRG (electromagnetic railgun) prototype deomnstrator. Image from Congressional Research Service report R44175 https://crsreports.congress.gov/product/pdf/R/R44175/77)
• 08:06, 3 April 2024 Lwcamp talk contribs uploaded File:EMRG prototype.png (BAE prototype EMRG (electromagnetic railgun) prototype deomnstrator. Image from Congressional Research Service report R44175 https://crsreports.congress.gov/product/pdf/R/R44175/77)
• 08:01, 3 April 2024 Lwcamp talk contribs created page File:Naval Electromagnetic Railgun.png (General Atomics prototype EMRG (electromagnetic railgun) prototype. Image from Congressional Research Service report R44175 https://crsreports.congress.gov/product/pdf/R/R44175/77)
• 08:01, 3 April 2024 Lwcamp talk contribs uploaded File:Naval Electromagnetic Railgun.png (General Atomics prototype EMRG (electromagnetic railgun) prototype. Image from Congressional Research Service report R44175 https://crsreports.congress.gov/product/pdf/R/R44175/77)
• 07:35, 3 April 2024 Lwcamp talk contribs created page File:Railgun Firing Projectile.jpg (Star Wars research: a railgun (Electromagnetic Launcher) fires a 0. 3 pound plastic projectile at 3 kilometers per second (7, 000 miles per hour) to completely penetrate a 1-inch steel target plate. The railgun is being developed at Maxwell Laboratories Inc. , San Diego, California, as part of the U. S. Government's research programme into space-based weapons capable of intercepting ballistic missiles - the Strategic Defense Initiative. Railguns use electromagnetism to accelerate a projectile...)
• 07:35, 3 April 2024 Lwcamp talk contribs uploaded File:Railgun Firing Projectile.jpg (Star Wars research: a railgun (Electromagnetic Launcher) fires a 0. 3 pound plastic projectile at 3 kilometers per second (7, 000 miles per hour) to completely penetrate a 1-inch steel target plate. The railgun is being developed at Maxwell Laboratories Inc. , San Diego, California, as part of the U. S. Government's research programme into space-based weapons capable of intercepting ballistic missiles - the Strategic Defense Initiative. Railguns use electromagnetism to accelerate a projectile...)
• 07:24, 3 April 2024 Lwcamp talk contribs created page File:Electromagnetic gun fire.jpg (An electromagnetic railgun is fired at 10.64 megajoules with a muzzle velocity of 2,520 meters per second at Naval Surface Warfare Center, Dahlgren, Va., Jan. 31, 2008. Credit: U.S. Department of Defense https://www.defense.gov/Multimedia/Photos/igphoto/2001982027/)
• 07:24, 3 April 2024 Lwcamp talk contribs uploaded File:Electromagnetic gun fire.jpg (An electromagnetic railgun is fired at 10.64 megajoules with a muzzle velocity of 2,520 meters per second at Naval Surface Warfare Center, Dahlgren, Va., Jan. 31, 2008. Credit: U.S. Department of Defense https://www.defense.gov/Multimedia/Photos/igphoto/2001982027/)
• 13:12, 1 April 2024 Lwcamp talk contribs uploaded a new version of File:Railgun simplified.png
• 10:47, 31 March 2024 Lwcamp talk contribs uploaded a new version of File:Railgun simplified.png
• 10:45, 31 March 2024 Lwcamp talk contribs created page File:Railgun simplified.png (A simplified diagram showing the workings of a railgun. The current flowing through the rails produces a magnetic field that pushes on the current flowing through the projectile, propelling down the rails.)
• 10:45, 31 March 2024 Lwcamp talk contribs uploaded File:Railgun simplified.png (A simplified diagram showing the workings of a railgun. The current flowing through the rails produces a magnetic field that pushes on the current flowing through the projectile, propelling down the rails.)
• 10:18, 31 March 2024 Lwcamp talk contribs created page File:Lorentz force current magnetic.png (The force on a current due to a magnetic field.)
• 10:18, 31 March 2024 Lwcamp talk contribs uploaded File:Lorentz force current magnetic.png (The force on a current due to a magnetic field.)
• 10:17, 31 March 2024 Lwcamp talk contribs created page File:Field from parallel wires.png (The magnetic field (magenta) circulating around a cross sectional plane perpendicular to the direction of two infinite line of current in the opposite directions (green).)
• 10:17, 31 March 2024 Lwcamp talk contribs uploaded File:Field from parallel wires.png (The magnetic field (magenta) circulating around a cross sectional plane perpendicular to the direction of two infinite line of current in the opposite directions (green).)
• 10:17, 31 March 2024 Lwcamp talk contribs created page File:Amperes circuit law.png (The magnetic field (magenta) circulating around a cross sectional plane perpendicular to the direction of an infinite line of current (green).)
• 10:17, 31 March 2024 Lwcamp talk contribs uploaded File:Amperes circuit law.png (The magnetic field (magenta) circulating around a cross sectional plane perpendicular to the direction of an infinite line of current (green).)
• 09:07, 31 March 2024 Lwcamp talk contribs created page Railguns (Created page with "{{PageConstructionNotice}} A railgun is a projectile weapon that uses high electric currents to push a projectile between two rails. The potential advantages of a railgun ar...")
• 16:24, 15 March 2024 Lwcamp talk contribs created page File:Electrostatic active shielding 2.png (Geometry optimized electrostatic shield design with negatively charged rods and positively charged plates. Design from Rajarshi Pal Chowdhury, Luke A. Stegeman, Matthew L. Lund, Dan Fry, Stojan Madzunkov, and Amir A. Bahadori, "Hybrid methods of radiation shielding against deep-space radiation", Life Sciences in Space Research, Volume 38, 2023, Pages 67-78, ISSN 2214-5524, https://doi.org/10.1016/j.lssr.2023.04.004.)
• 16:24, 15 March 2024 Lwcamp talk contribs uploaded File:Electrostatic active shielding 2.png (Geometry optimized electrostatic shield design with negatively charged rods and positively charged plates. Design from Rajarshi Pal Chowdhury, Luke A. Stegeman, Matthew L. Lund, Dan Fry, Stojan Madzunkov, and Amir A. Bahadori, "Hybrid methods of radiation shielding against deep-space radiation", Life Sciences in Space Research, Volume 38, 2023, Pages 67-78, ISSN 2214-5524, https://doi.org/10.1016/j.lssr.2023.04.004.)
• 13:10, 15 March 2024 Tshhmon talk contribs created page File:Ltwormhole.jpg ([https://www.youtube.com/watch?v=SuJ-2nTvAWo Still from a raytraced simulation of a long-throated wormhole, by Pablo Antonio Cano (YT).])
• 13:10, 15 March 2024 Tshhmon talk contribs uploaded File:Ltwormhole.jpg ([https://www.youtube.com/watch?v=SuJ-2nTvAWo Still from a raytraced simulation of a long-throated wormhole, by Pablo Antonio Cano (YT).])
• 08:12, 14 March 2024 Lwcamp talk contribs created page File:Magnetic shielding Halback Array.png (A spacecraft with a Halback array for a shield. A Halback array is a sequence of magnets each rotated by 90 degrees from the previous, so that their fields add on one side and cancel on the other. By making the field cancel in the interior of the Halback ring, the habitation module can be kept relatively field-free. The magnetic fields are shown in magenta and the current loops in green. Design from Paolo Desiati and Elena D'Onghia, "CREW HaT: A Magnetic Shielding System for Space Habitats",...)
• 08:12, 14 March 2024 Lwcamp talk contribs uploaded File:Magnetic shielding Halback Array.png (A spacecraft with a Halback array for a shield. A Halback array is a sequence of magnets each rotated by 90 degrees from the previous, so that their fields add on one side and cancel on the other. By making the field cancel in the interior of the Halback ring, the habitation module can be kept relatively field-free. The magnetic fields are shown in magenta and the current loops in green. Design from Paolo Desiati and Elena D'Onghia, "CREW HaT: A Magnetic Shielding System for Space Habitats",...)
• 20:05, 13 March 2024 Lwcamp talk contribs created page File:Plasma shield.png (A habitation module with a plasma shield. The section in in the shape of a torus, as is necessary for hybrid shielding but which also conveniently allows spin gravity. Superconductive cables under the hull hull carry high electric currents (shown in green) which make a magnetic field (shown in magenta) that cancels in the interior but adds outside the ring. The fields confine a cloud of electrons (shown in yellow) outside of the habitat. The habitat itself carries a high positive electric cha...)
• 20:05, 13 March 2024 Lwcamp talk contribs uploaded File:Plasma shield.png (A habitation module with a plasma shield. The section in in the shape of a torus, as is necessary for hybrid shielding but which also conveniently allows spin gravity. Superconductive cables under the hull hull carry high electric currents (shown in green) which make a magnetic field (shown in magenta) that cancels in the interior but adds outside the ring. The fields confine a cloud of electrons (shown in yellow) outside of the habitat. The habitat itself carries a high positive electric cha...)
• 17:33, 2 March 2024 Lwcamp talk contribs created page File:Elctrostatic active shielding.png (One proposed design for a deployable elctrostatic shield, using thin conductive "balloons" that "inflate" into spheres once charged. Ram K. Tripathi, John W. Wilson, and Robert C. Youngquist, "Electrostatic Active Radiation Shielding - Revisited", 2006 IEEE Aerospace Conference, Big Sky, MT, USA, 2006, pp. 9 pp.-, doi: 10.1109/AERO.2006.1655760.)
• 17:33, 2 March 2024 Lwcamp talk contribs uploaded File:Elctrostatic active shielding.png (One proposed design for a deployable elctrostatic shield, using thin conductive "balloons" that "inflate" into spheres once charged. Ram K. Tripathi, John W. Wilson, and Robert C. Youngquist, "Electrostatic Active Radiation Shielding - Revisited", 2006 IEEE Aerospace Conference, Big Sky, MT, USA, 2006, pp. 9 pp.-, doi: 10.1109/AERO.2006.1655760.)
• 15:18, 2 March 2024 Lwcamp talk contribs created page File:Racetrack magnetic active shielding.png (A spacecraft with the magnetic shield entirely confined inside a structure (in this case, the design is known as the "racetrack" configuration). Electric currents are shown in green, the magnetic field in magenta, and an example track of a radiation particle is in red.)
• 15:18, 2 March 2024 Lwcamp talk contribs uploaded File:Racetrack magnetic active shielding.png (A spacecraft with the magnetic shield entirely confined inside a structure (in this case, the design is known as the "racetrack" configuration). Electric currents are shown in green, the magnetic field in magenta, and an example track of a radiation particle is in red.)
• 15:17, 2 March 2024 Lwcamp talk contribs created page File:Unconfined FRC magnetic active shielding.png (A spacecraft shielded with an unconfined magnetic field, created by two simple current loops (green) with the resulting magnetic field shown in magenta.)
• 15:17, 2 March 2024 Lwcamp talk contribs uploaded File:Unconfined FRC magnetic active shielding.png (A spacecraft shielded with an unconfined magnetic field, created by two simple current loops (green) with the resulting magnetic field shown in magenta.)
• 08:42, 27 February 2024 Lwcamp talk contribs created page File:Relativistic travel radiation penetration depth.png (Stopping distance of protons in titanium and living tissue as a function of speed <math>\beta=v/c</math> relative to light speed. Oleg G. Semyonov, "Radiation Hazard of Relativistic Interstellar Flight", https://arxiv.org/pdf/physics/0610030)
• 08:42, 27 February 2024 Lwcamp talk contribs uploaded File:Relativistic travel radiation penetration depth.png (Stopping distance of protons in titanium and living tissue as a function of speed <math>\beta=v/c</math> relative to light speed. Oleg G. Semyonov, "Radiation Hazard of Relativistic Interstellar Flight", https://arxiv.org/pdf/physics/0610030)
• 08:30, 27 February 2024 Lwcamp talk contribs created page File:Relativistic travel unshielded dose rate.png (The rate at which an unshielded individual will take radiation dose as a function of speed <math>\beta=v/c</math> relative to light speed. Oleg G. Semyonov, "Radiation Hazard of Relativistic Interstellar Flight", https://arxiv.org/pdf/physics/0610030)
• 08:30, 27 February 2024 Lwcamp talk contribs uploaded File:Relativistic travel unshielded dose rate.png (The rate at which an unshielded individual will take radiation dose as a function of speed <math>\beta=v/c</math> relative to light speed. Oleg G. Semyonov, "Radiation Hazard of Relativistic Interstellar Flight", https://arxiv.org/pdf/physics/0610030)
• 16:12, 25 February 2024 Lwcamp talk contribs created page File:SEP shielding.png (Relative dose of solar energetic particles as a function of thickness of aluminum and polyethylene shielding L.W. Townsend, J.H. Adams, S.R. Blattnig, M.S. Clowdsley, D.J. Fry, I. Jun, C.D. McLeod, J.I. Minow, D.F. Moore, J.W. Norbury, R.B. Norman, D.V. Reames, N.A. Schwadron, E.J. Semones, R.C. Singleterry, T.C. Slaba, C.M. Werneth, M.A. Xapsos, "Solar particle event storm shelter requirements for missions beyond low Earth orbit", Life Sciences in Space Research, Volume 17 (2018), Pages 32-...)
• 16:12, 25 February 2024 Lwcamp talk contribs uploaded File:SEP shielding.png (Relative dose of solar energetic particles as a function of thickness of aluminum and polyethylene shielding L.W. Townsend, J.H. Adams, S.R. Blattnig, M.S. Clowdsley, D.J. Fry, I. Jun, C.D. McLeod, J.I. Minow, D.F. Moore, J.W. Norbury, R.B. Norman, D.V. Reames, N.A. Schwadron, E.J. Semones, R.C. Singleterry, T.C. Slaba, C.M. Werneth, M.A. Xapsos, "Solar particle event storm shelter requirements for missions beyond low Earth orbit", Life Sciences in Space Research, Volume 17 (2018), Pages 32-...)
• 15:46, 25 February 2024 Lwcamp talk contribs created page File:GCR Shielding comparison.png (Comparison of aluminum, lunar regolith, and polyethyene shielding as a function of thickness at both solar maximum and solar minimum galactic cosmic ray conditions. Felix Horst, Daria Boscolo, Marco Durante, Francesca Luoni, Christoph Schuy, and Uli Weber, "Thick shielding against galactic cosmic radiation: A Monte Carlo study with focus on the role of secondary neutrons", Life Sciences in Space Research, Volume 33 (2022), Pages 58-68, https://doi.org/10.1016/j.lssr.2022.03.003.)
• 15:46, 25 February 2024 Lwcamp talk contribs uploaded File:GCR Shielding comparison.png (Comparison of aluminum, lunar regolith, and polyethyene shielding as a function of thickness at both solar maximum and solar minimum galactic cosmic ray conditions. Felix Horst, Daria Boscolo, Marco Durante, Francesca Luoni, Christoph Schuy, and Uli Weber, "Thick shielding against galactic cosmic radiation: A Monte Carlo study with focus on the role of secondary neutrons", Life Sciences in Space Research, Volume 33 (2022), Pages 58-68, https://doi.org/10.1016/j.lssr.2022.03.003.)
• 13:59, 25 February 2024 Lwcamp talk contribs created page File:Solar flare shielding Poly.png (Relative dose of solar flare x-rays for a given thickness of polymer shielding. Different curves show different flare spectral distributions of x-rays. David S. Smith and John M. Scalo, "Risks due to X-ray flares during astronaut extravehicular activity", Space Weather vol. 5, S06004, doi:10.1029/2006SW000300 (2007) https://agupubs.onlinelibrary.wiley.com/doi/full/10.1029/2006SW000300)
• 13:59, 25 February 2024 Lwcamp talk contribs uploaded File:Solar flare shielding Poly.png (Relative dose of solar flare x-rays for a given thickness of polymer shielding. Different curves show different flare spectral distributions of x-rays. David S. Smith and John M. Scalo, "Risks due to X-ray flares during astronaut extravehicular activity", Space Weather vol. 5, S06004, doi:10.1029/2006SW000300 (2007) https://agupubs.onlinelibrary.wiley.com/doi/full/10.1029/2006SW000300)
• 13:56, 25 February 2024 Lwcamp talk contribs created page File:Solar flare shielding Al.png (Relative dose of solar flare x-rays for a given thickness of aluminum shielding. Different curves show different flare spectral distributions of x-rays. David S. Smith and John M. Scalo, "Risks due to X-ray flares during astronaut extravehicular activity", Space Weather vol. 5, S06004, doi:10.1029/2006SW000300 (2007) https://agupubs.onlinelibrary.wiley.com/doi/full/10.1029/2006SW000300)
• 13:56, 25 February 2024 Lwcamp talk contribs uploaded File:Solar flare shielding Al.png (Relative dose of solar flare x-rays for a given thickness of aluminum shielding. Different curves show different flare spectral distributions of x-rays. David S. Smith and John M. Scalo, "Risks due to X-ray flares during astronaut extravehicular activity", Space Weather vol. 5, S06004, doi:10.1029/2006SW000300 (2007) https://agupubs.onlinelibrary.wiley.com/doi/full/10.1029/2006SW000300)