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Category: engineering – Page 4

This compares some of the ringworlds, centrifuges, space stations, and ships that use spin to make gravity. It also try’s to show how the variables of artificial gravity are used to make centripetal acceleration into spin gravity.

Calculator used: https://www.artificial-gravity.com/sw/SpinCalc/

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REFERENCES
1. Hill, Paul R.; Schnitzer, Emanuel (1962 September). “Rotating Manned Space Stations.” In, Astronautics (vol. 7, no. 9, p. 14
18). Reston, Virginia, USA: American Rocket Society / American Institute of Aeronautics and Astronautics.
2. Gilruth, Robert R. (1969). “Manned Space Stations – Gateway to our Future in Space.” In S. F. Singer (Ed.), Manned.
Laboratories in Space (p. 1–10). Berlin, Germany: Springer-Verlag.
3. Gordon, Theodore J.; Gervais, Robert L. (1969). “Critical Engineering Problems of Space Stations.” In S. F. Singer (Ed.).
Manned Laboratories in Space (p. 11–32). Berlin, Germany: Springer-Verlag.
4. Stone, Ralph W. (1973). “An Overview of Artificial Gravity.” In A. Graybiel (Ed.), Fifth Symposium on the Role of the.
Vestibular Organs in Space Exploration (NASA SP-314, p. 23–33). Pensacola, Florida, USA, 19–21 August 1970.
Washington, DC, USA: NASA
5. Cramer, D. Bryant (1985). “Physiological Considerations of Artificial Gravity.” In A. C. Cron (Ed.), Applications of Tethers in.
Space (NASA CP-2364, vol. 1, p. 3·95–3·107). Williamsburg, Virginia, USA, 15–17 June 1983. Washington, DC, USA:
NASA.
6. Graybiel, Ashton (1977). “Some Physiological Effects of Alternation Between Zero Gravity and One Gravity.” In J. Grey (Ed.).
Space Manufacturing Facilities (Space Colonies): Proceedings of the Princeton / AIAA / NASA Conference, May 7–9, 1975
7. Hall, Theodore W. “Artificial Gravity in Theory and Practice.” International Conference on Environmental Systems, 2016, www.artificial-gravity.com/ICES-2016–194.pdf.

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SOCIAL
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ATTRIBUTION
Mass Effect music from @MrHulthen Check it out and his channel here: https://www.youtube.com/watch?v=57-xIuu4Vv.
“Citadel (Mass Effect)” (https://skfb.ly/6CLEX) by Yanez Designs is licensed under Creative Commons Attribution.
“Babylon 5 Station (Babylon 5)” (https://skfb.ly/6pFJp) by uperesito is licensed under Creative Commons Attribution.
“Halo Ring” (https://skfb.ly/orU8C) by Inditrion Dradnon is licensed under Creative Commons Attribution.
“Empire State Building” (https://skfb.ly/BGwU) by Microsoft is licensed under Creative Commons Attribution (http://creativecommons.org/licenses/by/4.0/).
“MCRN Tachi [Expanse TV Show]” (https://skfb.ly/o6JGy) by Jakub. Vildomec is licensed under Creative Commons Attribution.
“endurance spaceship” (https://skfb.ly/6TnFK) by devanshujha is licensed under Creative Commons Attribution.
“Discovery 1″ (https://skfb.ly/6oRCD) by uperesito is licensed under Creative Commons Attribution.
“Soviet Nuclear Computer Terminal” (https://skfb.ly/prtFw) by PIPO is licensed under Creative Commons Attribution.
“Hail Mary Ship” by MallocArray https://www.printables.com/model/232479-hail-mary-ship/files.
“Death Star — Star Wars” (https://skfb.ly/oqGZX) by Quiznos323.

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Continue reading “Spin Gravity Compared” | >

A new method inspired by coral reefs can capture carbon dioxide from the atmosphere and transform it into durable, fire-resistant building materials, offering a promising solution for carbon-negative construction.

The approach, developed by USC researchers and detailed in a study published in npj Advanced Manufacturing, draws inspiration from the ocean’s ’ natural ability to create robust structures by sequestering carbon dioxide. The resulting mineral-polymer composites demonstrate extraordinary mechanical strength, fracture toughness and fire-resistance capabilities.

“This is a pivotal step in the evolution of converting carbon dioxide,” said Qiming Wang, associate professor of civil and environmental engineering at the USC Viterbi School of Engineering. “Unlike traditional technologies that focus on storing carbon dioxide or converting it into liquid substances, we found this new electrochemical manufacturing process converts the chemical compound into calcium carbonate minerals in 3D-printed polymer scaffolds.”

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He majored in Mathematical Engineering in 1958 from the University of Tokyo then graduated in 1963 from the Graduate School of the University of Tokyo.

His Master of Engineering in 1960 was entitled Topological and Information-Theoretical Foundation of Diakoptics and Codiakoptics. His Doctor of Engineering in 1963 was entitled Diakoptics of Information Spaces.

Shun’ichi Amari received several awards and is a visiting professor of various universities.

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A new technology has been developed that enables the manufacturing of thin films, which typically require complex processes, using only water and oil in just one minute. Professor Kang Hee Ku and her research team from the School of Energy and Chemical Engineering at UNIST announced their novel process for creating catalytic thin films using oil droplets dispersed in water.

The developed technology involves a process in which nanomaterial precursors attached to the surface of oil droplets float to the surface of the water, where they assemble into a thin film. When is added, it decomposes due to the thin film precursors, producing gas bubbles that cause the precursors to be lifted and assembled on the water surface within one minute.

This process allows for precise control of the thin film thickness, adjustable from 350 μm, and enables the synthesis of thin films covering an area of up to 100 cm² using various raw materials. The resulting thin films exhibit a porous structure with a , featuring exceptional mechanical strength and flexibility.

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A research team led by Colorado State University has achieved a new milestone in 3D X-ray imaging technology. The scientists are the first to capture high-resolution CT scans of the interior of a large, dense object—a gas turbine blade—using a compact, laser-driven X-ray source.

The findings, published in Optica, describe the science and engineering behind this new radiographic imaging capability and its potential benefits for a range of industries, from aerospace to additive manufacturing.

The project is a years-long collaboration between researchers at CSU’s Departments of Electrical and Computer Engineering and Physics and Los Alamos National Laboratory, with participation from AWE in the U.K.

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A research team at UNIST has identified the causes of oxygen generation in a novel cathode material called quasi-lithium and proposed a material design principle to address this issue.

Quasi-lithium materials theoretically enable batteries to store 30% to 70% more energy compared to existing technologies through high-voltage charging of over 4.5V. This advancement could allow to achieve a of up to 1,000 km on a single charge. However, during the high-voltage charging process, oxygen trapped inside the material can oxidize and be released as gas, posing a significant explosion risk.

The research team, led by Professor Hyun-Wook Lee in the School of Energy and Chemical Engineering, discovered that oxygen oxidizes near 4.25V, causing partial structural deformation and gas release.

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Download Star Trek Fleet Command for FREE now here: https://bit.ly/3XYvSJ2 to support my channel, and enter the promo code VOYAGER30 to unlock Neelix, the morale officer from Voyager FREE.

Dr. Clément Vidal joins John Michael Godier to discuss his new paper on the Spider Stellar Engine, a hypothetical form of stellar propulsion using binary pulsar systems. The conversation explores how such systems could serve as **technosignatures**, the philosophy of post-biological civilizations, and the potential for advanced beings to manipulate entire stars or even create new universes.

Vidal, C. 2024. “The Spider Stellar Engine: A Fully Steerable Extraterrestrial Design?” Journal of the British Interplanetary Society 77 : 156–66. doi:10.59332/jbis-077–05-0156. https://arxiv.org/abs/2411.05038.

Vidal, C. 2019. “Pulsar Positioning System: A Quest for Evidence of Extraterrestrial Engineering.” International Journal of Astrobiology 18 : 213–34. doi:10.1017/S147355041700043X. https://arxiv.org/abs/1704.03316.

Delahaye, J. P., and C. Vidal. 2018. “Organized Complexity: Is Big History a Big Computation?” American Philosophical Association Newsletter on Philosophy and Computers 17 : 49–54. http://arxiv.org/abs/1609.07111.

#EventHorizon #SETI #Technosignatures #Astrophysics #StellarEngines #FermiParadox #ExtraterrestrialLife #Pulsars #SpaceExploration #PhilosophyOfScience #cosmology.

Continue reading “Have We Found an Alien Stellar Engine? | Clément Vidal” | >

As the growth in global electricity need and supply continues to accelerate, efficient power electronics will be key to improving grid efficiency, stability, integration, and resilience for all energy sources.

Advances in wide-bandgap materials for semiconductors offer the potential to enable greater power handling in power electronics while reducing electrical and thermal losses. Wide-bandgap materials also allow for smaller, faster, more reliable, and more energy-efficient power electronic components than current commercial silicon-based power .

Researchers from the National Renewable Energy Laboratory (NREL), the Colorado School of Mines, and Oak Ridge National Laboratory examined a potential route to achieve peak performance of aluminum gallium nitride, AlxGa1-x N, a key material for increasing power electronics’ energy efficiency and performance, through growth on optimized substrate materials.

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