All public logs

Combined display of all available logs of Galactic Library. You can narrow down the view by selecting a log type, the username (case-sensitive), or the affected page (also case-sensitive).

• 19:23, 4 December 2025 Lwcamp talk contribs created page File:Black hole Kerr.png (A diagram of the features of the Kerr geometry, showing the inner and outer event horizons (white ovals), outer boundary of the ergosphere (outer red oval), inner surface of infinite redshift (inner red oval) and ring singularity(dotted oval).)
• 19:23, 4 December 2025 Lwcamp talk contribs uploaded File:Black hole Kerr.png (A diagram of the features of the Kerr geometry, showing the inner and outer event horizons (white ovals), outer boundary of the ergosphere (outer red oval), inner surface of infinite redshift (inner red oval) and ring singularity(dotted oval).)
• 19:17, 4 December 2025 Lwcamp talk contribs created page File:Black hole Reissner-Nordstrom.png (A diagram of the features of the Reissner–Nordström geometry, showing the inner and outer event horizons (white solid circle), the location of the Schwarzschild event horizon for a black hole of equal mass but no charge (outer dashed circle), the location of the extremal horizon at half the Schwarzschild radius (inner dashed circle), and the central singularity.)
• 19:17, 4 December 2025 Lwcamp talk contribs uploaded File:Black hole Reissner-Nordstrom.png (A diagram of the features of the Reissner–Nordström geometry, showing the inner and outer event horizons (white solid circle), the location of the Schwarzschild event horizon for a black hole of equal mass but no charge (outer dashed circle), the location of the extremal horizon at half the Schwarzschild radius (inner dashed circle), and the central singularity.)
• 18:52, 4 December 2025 Lwcamp talk contribs created page File:Black hole Schwarzschold.png (A diagram of the features of the Schwarzschild geometry, showing the event horizon (white circle) and central singularity.)
• 18:52, 4 December 2025 Lwcamp talk contribs uploaded File:Black hole Schwarzschold.png (A diagram of the features of the Schwarzschild geometry, showing the event horizon (white circle) and central singularity.)
• 19:04, 26 November 2025 Lwcamp talk contribs created page File:Comparison of the recoil of conventional and electromagnetic cannon.png (A comparison of the recoil impulse from a powder gun (green), electromagnetic gun (red), and a powder gun with a muzzle brake (blue) for a constant-energy launch (varying the mass of the projectile with speed to keep the total kinetic energy constant). Data from Edward M. Schmidt, "Comparison of the recoil of conventional and electromagnetic cannon", Shock and Vibration 8 (2001) 141–145 https://doi.org/10.1155/2001/590948)
• 19:04, 26 November 2025 Lwcamp talk contribs uploaded File:Comparison of the recoil of conventional and electromagnetic cannon.png (A comparison of the recoil impulse from a powder gun (green), electromagnetic gun (red), and a powder gun with a muzzle brake (blue) for a constant-energy launch (varying the mass of the projectile with speed to keep the total kinetic energy constant). Data from Edward M. Schmidt, "Comparison of the recoil of conventional and electromagnetic cannon", Shock and Vibration 8 (2001) 141–145 https://doi.org/10.1155/2001/590948)
• 10:20, 12 August 2025 Lwcamp talk contribs created page File:Filamentation Kautz J Appl Phys 130 203302 2021.png (Laboratory-produced laser filament produces a plasma for laser induced breakdown spectroscopy. Credit: Elizabeth J. Kautz, Mark C. Phillips, and Sivanandan S. Harilal, "Laser-induced fluorescence of filament-produced plasmas", Journal of Applied Physics <b>130</b>, 203302 (2021); doi: 10.1063/5.0065240)
• 10:20, 12 August 2025 Lwcamp talk contribs uploaded File:Filamentation Kautz J Appl Phys 130 203302 2021.png (Laboratory-produced laser filament produces a plasma for laser induced breakdown spectroscopy. Credit: Elizabeth J. Kautz, Mark C. Phillips, and Sivanandan S. Harilal, "Laser-induced fluorescence of filament-produced plasmas", Journal of Applied Physics <b>130</b>, 203302 (2021); doi: 10.1063/5.0065240)
• 18:46, 29 May 2025 Lwcamp talk contribs created page Black Hole Engineering (Created page with "{{PageConstructionNotice}} Ah, black holes. Flaws in the fabric of the universe. Empty voids from which nothing can return. The ultimate unknowable mystery. But what are they good for? == Basics == Lets start with a brief introduction to black holes. Things like planets and stars and other massive bodies have gravitational fields around them that tend to draw things toward them and trap stuff on them. In order to get away from such a body, you need to shoot yo...")
• 19:27, 16 April 2024 Lwcamp talk contribs uploaded a new version of File:Field from parallel wires.png
• 18:57, 16 April 2024 Lwcamp talk contribs created page Helical railguns (Created page with " Helical railguns are a kind of railgun-coilgun hybrid. In operation, they are basically a brushed synchronous electric motor that has been rolled out into a straight line....")
• 15:27, 16 April 2024 Lwcamp talk contribs created page Electromagnetic guns (Created page with "We can use electromagnetism to make things move. The most familiar way to do this for many of us is to use a rotary electric motor, which turns electric power into the rotary...")
• 14:45, 16 April 2024 Lwcamp talk contribs uploaded a new version of File:Helical railgun.png
• 12:17, 16 April 2024 Lwcamp talk contribs created page File:Helical railgun.png (Diagram of the internals of a helical railgun. The stator, including the rails and the helical winding, are on the left and form a barrel (covered with a mechanical support to withstand the forces of firing). The full projectile is shown on the right bottom, and the active portions of the electrical system of the projectile at top right.)
• 12:17, 16 April 2024 Lwcamp talk contribs uploaded File:Helical railgun.png (Diagram of the internals of a helical railgun. The stator, including the rails and the helical winding, are on the left and form a barrel (covered with a mechanical support to withstand the forces of firing). The full projectile is shown on the right bottom, and the active portions of the electrical system of the projectile at top right.)
• 17:33, 15 April 2024 Lwcamp talk contribs created page File:Keplerian orbit ground impulse.png (Launch with an impulse delivered only at ground level puts a payload on an orbital trajectory that will always intersect the ground.)
• 17:33, 15 April 2024 Lwcamp talk contribs uploaded File:Keplerian orbit ground impulse.png (Launch with an impulse delivered only at ground level puts a payload on an orbital trajectory that will always intersect the ground.)
• 08:34, 4 April 2024 Lwcamp talk contribs created page File:Railgun projectile sabot separation 2.jpg (The sabot separates from a hypervelocity railgun dart immediately after launch.)
• 08:34, 4 April 2024 Lwcamp talk contribs uploaded File:Railgun projectile sabot separation 2.jpg (The sabot separates from a hypervelocity railgun dart immediately after launch.)
• 12:03, 3 April 2024 Lwcamp talk contribs uploaded a new version of File:Hypervelocity projectile impact test.png
• 11:56, 3 April 2024 Lwcamp talk contribs created page File:Hypervelocity projectile impact test.png (Test of a railgun-fired hypervelocity projectile penetrating a series of metal plates.)
• 11:56, 3 April 2024 Lwcamp talk contribs uploaded File:Hypervelocity projectile impact test.png (Test of a railgun-fired hypervelocity projectile penetrating a series of metal plates.)
• 11:46, 3 April 2024 Lwcamp talk contribs created page File:Railgun projectile sabot separation.png (The sabot separates from a hypervelocity railgun dart immediately after launch.)
• 11:46, 3 April 2024 Lwcamp talk contribs uploaded File:Railgun projectile sabot separation.png (The sabot separates from a hypervelocity railgun dart immediately after launch.)
• 11:36, 3 April 2024 Lwcamp talk contribs created page File:HVP shrapnel separation.png (A bursting charge disperses shrapnel sub-projectiles in a test of a railgun hypervelocity projectile.)
• 11:36, 3 April 2024 Lwcamp talk contribs uploaded File:HVP shrapnel separation.png (A bursting charge disperses shrapnel sub-projectiles in a test of a railgun hypervelocity projectile.)
• 11:01, 3 April 2024 Lwcamp talk contribs created page 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)
• 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).)