Cool Worlds

Artificial Gravity (2019x1)

Air date: Jan 09, 2019

Artificial gravity is a concept that is ubiquitous in our science fiction yet elusive in our space program. Why is this? And how could we develop artificial gravity soon? In a Cool Worlds special, this video essay goes in depth on the topic discussing why centrifuges are the most plausible solution and early ideas on the topic. Join us a journey from Einstein's equivalence principle, to O'Neill Cylinders and Stanford Tori; from Coriolis forces to near-term experiments. Grab a cup of a tea and enjoy. You can now support our research program and the Cool Worlds Lab at Columbia University: https://www.coolworldslab.com/support Chapters: 0:08 Introduction 5:43 The O’Neill Cylinder 8:10 The Stanford Torus 10:16 Down-Sizing 13:31 Coriolis 16:52 Vertical Coriolis 19:32 Tipping Coriolis 21:34 Canal Sickness 27:01 Stability 29:28 Near-Tear Experiments Academic articles used: ► Nesti et al. (2014), "Human sensitivity to vertical motion", Exp Brain Res., 232, 303: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3898153/ ► Harris et al. (2014), "How Much Gravity Is Needed to Establish the Perceptual Upright?", PLoS One, 9, e106207: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4153541/ (0.15g) ► Cohen et al. (2000), "Effects of Prolonged Centrifugation on Orthostasis", Aerospace Medical Association 72nd Annual Scientific Meeting 2001: https://ntrs.nasa.gov/search.jsp?R=20010106394 ► Graybiel et al. (1960), "Observations on Human Subjects Living in a 'Slow Rotation Room' for Periods of Two Days", Arch Neurol., 3, 55: https://jamanetwork.com/journals/jamaneurology/fullarticle/562689 ► Theodore Hall (1993), "The Architecture of Artificial Gravity: Archetypes and Transformations of Terrestrial Design", PhD Thesis, University of Michigan: http://www.artificial-gravity.com/SSI-1993-Hall.pdf ► Theodore Hall (2002), "Architectural Considerations for a Minimum Mass, Minimum Energy, Artificial Gravity Environment", SAE Technical paper Series, http://www.artificial-g