* is a wildcard is “or” & is “and” Help …
Software
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This isn’t like Classic, where OS 9 and OS X applications co-existed on the screen. OS 9’s running in its own X11 window. The OS X hard drive shows up on the Mac OS 9 desktop as a drive called “Unix”. You can copy things from the Unix drive into the Mac OS 9 environment and vice-versa. A key hurdle with this method is the state of propulsion technology. We'd need thrusters that are both powerful and long lasting. Electromagnetic thrusters which propel streams of ions may be our best hope here, but in their current state, they would only be capable of providing minuscule levels of artificial gravity, hardly enough to make a meaningful difference. If you have a Mac with an M1 chip, you can run iPhone and iPad apps and games right on your Mac. Apple has been steadily adding more capabilities to this feature, but the latest MacOS 11.3 update.
Bryll, Robert. Object Trajectories in a Rotating Frame of Reference. A simulation of a fountain on a rotating space station, as a Java 1.2.2 applet. HTML
Hall, Theodore W.SpinCalc: An Artificial-Gravity Calculator in JavaScript. HTML
Hall, Theodore W.SpinDoctor: An Artificial-Gravity Simulation Program. Compiled for IRIX, SunOS, and Mac OS X workstations. HTML
Hoza, William M.Space Cylinder Physics. HTML
Books,Chapters, Papers, Articles, Presentations
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Allcorn, Aaron; Calderon, Damien; Clément, Gilles R.; Grygier, Mike; Hagen, Jeff; Hampton, James; Holland, Mykale-jamal C.; James, George; Koontz, Steve; Lange, Greg; Litteken, Doug; Macneil, Kevin; Martin, Canaan; Montoya, Brett D.; Nagy, Kornel; Peterson, Joshua; Phillips-Hungerford, Taylor; Raboin, Jasen; Reddy, Satish; Shariff, Khadijah; Wilkes, Bob; Wong, Ken (2017 April). Artificial Gravity, Concept Feasibility Study, Structural Engineering Division. PDF
Bell, Michael; Griggs, Tequila; Latta, Jarrid; Nelms, Alice; Shunnarah, Richard; Sparks, Damon; Xenofos, George; Zarichnak, Michael (1999). An Experimental Study of Natural Convection in Artificial Gravity. NASA Reduced Gravity Student Flight Opportunities Program Proposal. Birmingham, Alabama, USA: The University of Alabama at Birmingham. PDF
Borowski, Stanley K.; McCurdy, David R.; Packard, Thomas W. (2014 July). Conventional and Bimodal Nuclear Thermal Rocket (NTR) Artificial Gravity Mars Transfer Vehicle Concepts (AIAA 2014-3623). 50th AIAA / ASME / SAE / ASEE Joint Propulsion Conference, Cleveland, Ohio, USA, 28-30 July 2014. Reston, Virginia, USA: American Institute of Aeronautics and Astronautics. PDF Order
Cardús, David (1994 May). Artificial Gravity in Space and in Medical Research. In, Journal of Gravitational Physiology (vol. 1, no. 1, p. 19-22). International Society for Gravitational Physiology. HTML
Carroll, Joseph A. (2010 September). Design Concepts for a Manned Artificial Gravity Research Facility (IAC-10-D1.1.4). 61st International Astronautical Congress, Prague, Czech Republic, 27 September - 1 October 2010. Paris, France: International Astronautical Federation. PDF PDF
Carroll, Joseph A. (2019 October). Do Humans Have a Future in Moon or Mars Gravity? (IAC-19-D3.1.9). 70th International Astronautical Congress (IAC), Washington, DC, USA, 21-25 October 2019. Paris, France: International Astronautical Federation. PDF PDF Order
Clément, Gilles R. (2017 January 30). Artificial Gravity Studies on Board the DSH. Artificial Gravity Study Kickoff Meeting, Houston, Texas, USA: Johnson Space Center, National Aeronautics and Space Administration. PDF
Clément, Gilles R.; Charles, John B.; Norsk, Peter; Paloski, William H. (2015 May 12). Artificial Gravity, version 6.0 (NASA Human Research Program, Human Health Countermeasures Element, Evidence Report). Houston, Texas, USA: Johnson Space Center, National Aeronautics and Space Administration. PDF
Clément, Gilles R.; Charles, John B.; Paloski, William H. (2016 March). Revisiting the Needs for Artificial Gravity During Deep Space Missions. In, REACH – Reviews in Human Space Exploration (vol. 1, p. 1-10). Amsterdam, The Netherlands: Elsevier. Order
Cohen, Malcolm M. (1989). Artificial Gravity for Long Duration Spaceflight (AAS 87-190). In C. Stoker (Ed.), The Case for Mars III: Strategies for Exploration – General Interest and Overview (American Astronautical Society, Science and Technology Series, Vol. 74, p. 171-178), Boulder, Colorado, USA, 18-22 July 1987. San Diego, California, USA: Univelt, Inc. Order
Coffee, T. M.; Gill, S. A.; Wagner, E. B.; Theis, M. J.; Tsikata, S.; Bernal, I. M.; Bryan, A. W.; Merfeld, D. M. (2003 November). Modeling Vestibular Effects of Artificial Gravity by Gondola Centrifugation in Mice. Annual meeting, American Society for Gravitational and Space Biology, Huntsville, Alabama, USA, 12-16 November 2003. HTML
Davis, Hubert P. (1986 May 1). A Manned Mars Mission Concept with Artificial Gravity (NASA-N87-17745). In, Manned Mars Missions, Working Group Papers (Vol. 1, Sec. 1·4, p. 292-305). Huntsville, Alabama, USA: Marshall Space Flight Center, National Aeronautics and Space Administration. PDF
Dorais, Gregory A. (2016 September). An Artificial-Gravity Space-Settlement Ground-Analogue Design Concept (AIAA 2016-5388). AIAA Space 2016 Conference & Exposition, Long Beach, California, USA, 13-16 September 2016. Reston, Virginia, USA: American Institute of Aeronautics and Astronautics. PDF Order
Engle, James; Clark, Torin K. (2017 September). An Approach for Development and Deployment of Artificial Gravity in Deep Space Exploration Architectures (AIAA 2017-5139). AIAA Space 2017 Conference & Exposition, Orlando, Florida, USA, 12-14 September 2017 [cancelled due to hurricane Irma]. Reston, Virginia, USA: American Institute of Aeronautics and Astronautics. PDF Order
Engle, James; Simón, Xavier D.; Clark, Torin K. (2018 January 24). Boeing Artificial Gravity Concepts for Low Earth Orbit & Deep Space Exploration. Future In-Space Operations (FISO) Working Group presentation. PDF MP3 [“We respectfully ask folks to download files once … With regard to MP3s, the right way to go is probably not to stream the audio, but to download the whole file and then play it.”]
Fisher, Nick (2001 May). Space Science 2001: Some Problems With Artificial Gravity. In, Physics Education (vol. 36, no. 3, p. 193-201). Bristol, England, UK: IOP Publishing. PDF
Frett, Timo; Green, David Andrew; Arz, Michael; Noppe, Alexandra; Petrat, Guido; Kramer, Andreas; Kuemmel, Jakob; Tegtbur, Uwe; Jordan, Jens (2020 June 11). Motion Sickness Symptoms During Jumping Exercise on a Short-Arm Centrifuge. In, PLOS ONE (vol. 15, no. 6, e0234361). San Francisco, California, USA: PLOS. HTML
Globus, Al; Hall, Theodore W. (2017 June). Space Settlement Population Rotation Tolerance. In, NSS Space Settlement Journal. Washington, DC, USA: National Space Society. PDF
Goyal, Raman; Bryant, Tyler; Majji, Manoranjan; Skelton, Robert E.; Longman, Anthony (2017 September). Design and Control of Growth Adaptable Artificial Gravity Space Habitats (AIAA 2017-5141). AIAA Space 2017 Conference & Exposition, Orlando, Florida, USA, 12-14 September 2017 [cancelled due to hurricane Irma]. Reston, Virginia, USA: American Institute of Aeronautics and Astronautics. PDF Order
Gupta, A.; Baker, J.; Sharif, M. A. R. (2004). Numerical Analysis of Natural Convection in an Enclosure with Rotationally Produced Artificial Gravity. In, Numerical Heat Transfer, Part A: Applications (vol. 46, no. 2, p. 131-145). London, England, UK: Taylor and Francis. Order
Hall, Theodore W. (1991 May). The Architecture of Artificial Gravity: Mathematical Musings on Designing for Life and Motion in a Centripetally Accelerated Environment. In B. Faughnan, G. Maryniak (Eds.), Space Manufacturing 8: Energy and Materials from Space (p. 177-186). 10th Princeton / AIAA / SSI Conference, Princeton, New Jersey, USA, 15-18 May 1991. Washington, DC, USA: American Institute of Aeronautics and Astronautics. PDF
Hall, Theodore W. (1993 May). The Architecture of Artificial Gravity: Archetypes and Transformations of Terrestrial Design. In B. Faughnan (Ed.), Space Manufacturing 9: The High Frontier – Accession, Development and Utilization (p. 198-209). 11th SSI-Princeton Conference, Princeton, New Jersey, USA, 12-15 May 1993. Washington, DC, USA: American Institute of Aeronautics and Astronautics. PDF
Hall, Theodore W. (1994 April). Designing for Life and Motion in Artificial-Gravity Environments.SSI Update (vol. 20, no. 2, p. 1-4). Princeton, New Jersey, USA: Space Studies Institute.
Hall, Theodore W. (1994 May). The Architecture of Artificial-Gravity Environments for Long-Duration Space Habitation (University Microfilms 9423117). Doctoral dissertation (Arch.D.), Ann Arbor, Michigan, USA: University of Michigan. HTML Order
Hall, Theodore W. (1995 May). The Architecture of Artificial Gravity: Theory, Form, and Function in the High Frontier. In B. Faughnan (Ed.), Space Manufacturing 10: Pathways to the High Frontier (p. 182-192). 12th SSI-Princeton Conference, Princeton, New Jersey, USA, 4-7 May 1995. Washington, DC, USA: American Institute of Aeronautics and Astronautics. HTML PDF
Hall, Theodore W. (1999 July). Artificial Gravity and the Architecture of Orbital Habitats. In, Journal of the British Interplanetary Society (vol. 52, no. 7-8, p. 290-300). London, England, UK: British Interplanetary Society. [Presented at the International Symposium on Space Tourism, Bremen, Germany, 20 March 1997.] HTML PDF Order
Hall, Theodore W. (1999 September). Inhabiting Artificial Gravity (AIAA 99-4524). AIAA Space Technology Conference & Exposition, Albuquerque, New Mexico, USA, 28-30 September 1999. Reston, Virginia, USA: American Institute of Aeronautics and Astronautics. HTML PDF Order
Hall, Theodore W. (2000 July). Gravity as an Environmental System (SAE 2000-01-2244). 30th International Conference on Environmental Systems (ICES), Toulouse, France, 10-13 July 2000. Warrendale, Pennsylvania, USA: Society of Automotive Engineers. PDF Order
Artificial Gravity Mac Os Download
Hall, Theodore W. (2001). Gravity, Space, and Architecture. In J. Zukowsky (Ed.), 2001: Building for Space Travel (p. 168-174). New York, New York, USA: Harry N. Abrams, Inc. [This is a catalog of an exhibition sponsored by the Art Institute of Chicago, 24 March - 21 October, 2001, and the Museum of Flight in Seattle, 15 December, 2001 - 15 May, 2002.]
Hall, Theodore W. (2002 July). Architectural Considerations for a Minimum Mass, Minimum Energy, Artificial Gravity Environment (SAE 2002-01-2431). 32nd International Conference on Environmental Systems (ICES), San Antonio, Texas, USA, 15-18 July 2002. Warrendale, Pennsylvania, USA: Society of Automotive Engineers. PDF Order
Hall, Theodore W. (2002 October). Envisioning Artificial Gravity. Poster, 1st Space Architecture Symposium (SAS 2002), Houston, Texas, USA, 10-11 October 2002. PDF
Hall, Theodore W. (2004 May 20). Architectural Design to Promote Human Adaptation to Artificial Gravity. White paper, submitted in response to the NASA Exploration Systems Enterprise, Request for Information RFI04212004. PDF
Hall, Theodore W. (2005). The Gravity of Architecture – The Architecture of Gravity. In A. Ferré, I. Hwang, M. Kubo, R. Prat, T. Sakamoto, A. Tetas (Eds.), Verb: Conditioning (p. 142-147). Barcelona, Spain: Actar.
Hall, Theodore W. (2006 September). Artificial Gravity Visualization, Empathy, and Design (AIAA 2006-7321). 2nd International Space Architecture Symposium (SAS 2006), AIAA Space 2006 Conference & Exposition, San Jose, California, USA, 19-21 September 2006. Reston, Virginia, USA: American Institute of Aeronautics and Astronautics. PDF Order
Hall, Theodore W. (2009). Artificial Gravity. In A. S. Howe, B. Sherwood (Eds.), Out of This World: The New Field of Space Architecture (Chapter 12, p. 133-152). Reston, Virginia, USA: American Institute of Aeronautics and Astronautics. HTML
Hall, Theodore W. (2015 December 3). Architecture for Artificial Gravity. Invited presentation, Students for the Exploration and Development of Space, University of Michigan chapter, Ann Arbor, Michigan, USA. HTML
Hall, Theodore W. (2016 June). Artificial Gravity and Implications for Space Architecture. In S. Häuplik-Meusburger, O. Bannova, Space Architecture Education for Engineers and Architects: Designing and Planning Beyond Earth (Section 4.5, p. 133-149). New York, New York, USA: Springer. Order
Hall, Theodore W. (2016 July). Artificial Gravity in Theory and Practice (ICES-2016-194). 46th International Conference on Environmental Systems (ICES), Vienna, Austria, 10-14 July 2016. Lubbock Texas, USA: Texas Tech University. PDF
Hall, Theodore W. (2020 April 10). Artificial Gravity in Interstellar Travel. In, Acta Futura (no. 12, p. 103-119). Paris, France: European Space Agency. [Presented at the ESA ESTEC Interstellar Workshop, Noordwijk, The Netherlands, 20-21 June 2019.] PDF
Hall, Theodore W. (2020 November 17). Artificial Gravity: What's Wrong With This Picture? (oral presentation). AIAA Ascend 2020 Forum, virtual event, 16-18 November 2020. MP4
Hall, Theodore W. (2020 November 17). Artificial Gravity: Why Centrifugal Force is a Bad Idea (AIAA 2020-4112). AIAA Ascend 2020 Forum, virtual event, 16-18 November 2020. Reston, Virginia, USA: American Institute of Aeronautics and Astronautics. PDF Order MP4
Howe, A. Scott; Sherwood, Brent; Hall, Theodore W.; Landau, Damon (2019 July). Gateway Gravity Testbed (GGT) (ICES-2019-023). 49th International Conference on Environmental Systems (ICES), Boston, Massachusetts, USA, 7-11 July 2019. Lubbock Texas, USA: Texas Tech University. PDF
Hudson, Gary C. (2017 February). G-Lab. AIAA-SF TechTalk, Silicon Valley Space Center, Palo Alto, California, USA. Mojave, California, USA: Space Studies Institute. HTML
Jevtovic, Predrag (2011 September). Electrodynamic Gravity Generator (AIAA 2011-7169). AIAA Space 2011 Conference & Exposition, Long Beach, California, USA, 27-29 September 2011. Reston, Virginia, USA: American Institute of Aeronautics and Astronautics. PDF Order
Jevtovic, Predrag (2012 July). Electrodynamic Generator of Gravity Sensation. In, Proceedings of the 12th European Conference on Space Structures, Materials & Environmental Testing (ESA SP-691), Noordwijk, The Netherlands, 20-23 March 2012. Paris, France: European Space Agency. PDF
Jevtovic, Predrag (2015 August). Electrodynamic Gravity Generator (AIAA 2015-4613). AIAA Space 2015 Conference & Exposition, Pasadena, California, USA, 31 August - 2 September 2015. Reston, Virginia, USA: American Institute of Aeronautics and Astronautics. PDF Order
Jevtovic, Predrag (2017 September). Electrodynamic Gravity Generator for Artificial Gravity Modules (AIAA 2017-5140). AIAA Space 2017 Conference & Exposition, Orlando, Florida, USA, 12-14 September 2017 [cancelled due to hurricane Irma]. Reston, Virginia, USA: American Institute of Aeronautics and Astronautics. PDF Order
Johnson, Richard D.; Holbrow, Charles (Eds.) (1977). Space Settlements: A Design Study (NASA SP-413). Washington, DC, USA: National Aeronautics and Space Administration. PDF
Joosten, B. Kent (2002). Preliminary Assessment of Artificial Gravity Impacts to Deep-Space Vehicle Design (NASA JSC-EX-02-50). Houston, Texas, USA: Johnson Space Center, National Aeronautics and Space Administration. PDF
Joosten, B. Kent (2007 February). Preliminary Assessment of Artificial Gravity Impacts to Deep-Space Vehicle Design (NASA JSC-63743). Houston, Texas, USA: Johnson Space Center, National Aeronautics and Space Administration. PDF
Kamman, Michelle; Paloski, William; Joosten, B. Kent (2004). The Effect on the Crew and Design Implementations of Artificial Gravity Transportation Systems. White paper, submitted in response to the NASA Exploration Systems Enterprise, Request for Information RFI04212004. PDF
Krishnamurthy, Akshata; Opperman, Roedolph; Wald, Sam; Reyes, Sabrina; Broll, Anthony; Norheim, Johannes; Lowey, Charlotte; Eschelbach, Gregory; Prout, Jonathan; Bhattaru, Srinivasa; de Weck, Olivier (2016). ACCESS (ArtifiCial gravity CEntrifuge Space Station). RASC-AL 2016 Earth-Independent 1g Space Station Final Report. Hampton, Virginia, USA: Revolutionary Aerospace Systems Concepts – Academic Linkage (RASC-AL), National Institute of Aerospace. PDF
Landau, Damon (2008 August). Method to Maintain Artificial Gravity during Transfer Maneuvers for Tethered Spacecraft (AIAA 2008-7499). AIAA/AAS Astrodynamics Specialist Conference and Exhibit, Honolulu, Hawaii, USA, 18-21 August 2008. PDF Order
Martin, Kaela M.; Landau, Damon F.; Longuski, James M. (2016 March). Method to Maintain Artificial Gravity During Transfer Maneuvers for Tethered Spacecraft. In, Acta Astronautica (vol. 120, p. 138-153). Amsterdam, The Netherlands: Elsevier. Order
Moore, Steven T.; Clément, Gilles R.; Diedrich, Andre; Biaggioni, Italo; Kaufmann, Horacio; Raphan, Theodore; Cohen, Bernard (2001 January). Inflight Centrifugation as a Countermeasure for Deconditioning of Otolith-Based Reflexes. Bioastronautics Investigators’ Workshop, Galveston, Texas, USA, 17-19 January 2001. Houston, Texas, USA: Division of Space Life Sciences, Universities Space Research Association. PDF
Newsom, B. D. (1972). Habitability Factors in a Rotating Space Station. In, Space Life Sciences (vol. 3, p. 192-197). Dordrecht, The Netherlands: D. Reidel Publishing Company. PDF
Noyes, Gary P. (2011 July). Variable Gravity Laboratory for Deep-Space Crewed Missions Research and Demonstration (AIAA 2011-5130). 41st International Conference on Environmental Systems (ICES), Portland, Oregon, USA, 17-21 July 2011. Reston, Virginia, USA: American Institute of Aeronautics and Astronautics. PDF Order
Paloski, William H.; Charles, John B.; Norsk, Peter; Arya, Maneesh; Smith, LaRona; Cromwell, Ronita; Kugler, Justin; Gilbert, Charlene; Baumann, David (2014 July). 2014 International Workshop on Research and Operational Considerations for Artificial Gravity Countermeasures (NASA TM-2014-217394). Washington, DC, USA: National Aeronautics and Space Administration. PDF
Rajkumar, Albert; Bannova, Olga (2020 October). A Pragmatic Approach to Artificial Gravity: Testbed for Gravity Simulation Platform On-Orbit (IAC-20-D1.1.2). 71st International Astronautical Congress (IAC), the CyberSpace Edition, 12-14 October 2020. Paris, France: International Astronautical Federation. PDF Order
Rajkumar, Albert; Bannova, Olga (2020 November 17). A Three-Body Spacecraft as a Testbed for Artificially-Induced Gravity Research in Low Earth Orbit (AIAA 2020-4110). AIAA Ascend 2020 Forum, virtual event, 16-18 November 2020. Reston, Virginia, USA: American Institute of Aeronautics and Astronautics. PDF Order
Ramsey, H. Rudy (1971). Human Factors and Artificial Gravity: A Review. In, Human Factors: The Journal of the Human Factors and Ergonomics Society (vol. 13, no. 6, p. 533-542). Thousand Oaks, California, USA: SAGE Publications. HTML
Rodgers, Erica; Simon, Matthew A. (2015 August). Multigenerational Independent Colony for Extraterrestrial Habitation, Autonomy, and Behavior Health (MICEHAB): An investigation of a Long Duration, Partial Gravity, Autonomous Rodent Colony (AIAA 2015-4604). AIAA Space 2015 Conference & Exposition, Pasadena, California, USA, 31 August - 2 September 2015. Reston, Virginia, USA: American Institute of Aeronautics and Astronautics. PDF Order
Rodgers, Erica; Simon, Matthew A.; Chai, Patrick; Lewis, Weston; Neilan, Jim; Stillwagen, Fred; Williams, Phillip (2016 July). A Mission Concept to Study Multigenerational Mammalian Reproduction (ICES-2016-022). 46th International Conference on Environmental Systems (ICES), Vienna, Austria, 10-14 July 2016. Lubbock Texas, USA: Texas Tech University. PDF
Rousek, Tomáš (2010 August). AG_SYS: Artificial Gravity System Concepts. Strasbourg, France: International Space University. PDF
Sorensen, Kirk (2005 December). A Tether-Based Variable-Gravity Research Facility Concept. 53rd JANNAF Propulsion Meeting, Monterey, California, USA, 5-8 December 2005. Washington, DC, USA: Joint Army Navy NASA Air Force (JANNAF) Interagency Propulsion Committee. PDF
Stone, Ralph W., Jr.; Piland, William M. (1969 January). Potential Problems Related to Weightlessness and Artificial Gravity (NASA TN-D-4980). Washington, DC, USA: National Aeronautics and Space Administration. PDF
Sullivan, Thomas A. (2002 June). WhirliGig Transfer Vehicle for Motor-Driven, Restartable A.G. Houston, Texas, USA: Johnson Space Center, National Aeronautics and Space Administration. PDF
Sullivan, Thomas A. (2003 August). Artificial G Facility for Bioastronautics, Human Exploration Science, & HEDS Technology Demo Missions. Houston, Texas, USA: Johnson Space Center, National Aeronautics and Space Administration. PDF
Timmermans, Remco; Al-Ekabi, Cenan; Alekseeva, Evgeniia; Badenas-Agusti, Mariona; Bamber, Daniel; Borgersen, Øystein; Bradshaw, Miranda; Brinkmeyer, Alex; Diaz-de-Cerio-Goenaga, Rainer; Evellin, Pierre; Fagioli, Giulia; Falk-Petersen, Erik; Filipowicz, Dorota; Fleischer, Jennifer; Garcia-Bourne, Enrique; Goel, Konark; Harrison, Samuel; Harwood, Jay; Høyland, Per; Khvostova, Ekaterina; Kumar, Sanjeev; Ling, Xiaodong; Linn-Barnett, Danna; Livne, Ofer; Mandelblit, Nili; McBarron, Kelsey; Memon, Kamran; Meyer, Marit; Minster, Gedi; Pillet, Karine; Qin, Zhaohui; Reyes-Mantilla, Camilo Andres; Sackey, Daniel; Spannagel, Ruven; Torrado, Mickael; Vandenhoeck, Ray; Venkatapathy, Nandakumar; Woodley, Alicia; Zhang, Yongqian (2016 September). Artificial Gravity Conceptual Orbiting Station Design (IAC-16-D3.3.4). 67th International Astronautical Congress (IAC), Guadalajara, Mexico, 26-30 September 2016. Paris, France: International Astronautical Federation. PDF Order
Todd, Paul W.; Ferl, Robert J.; Bhattacharya, Sharmila; Hood, Leroy E.; Mills, Aaron L.; Nelson, Gregory R.; Nickerson, Cheryl A.; Ott, C. Mark; Pawelczyk, James A.; Quinn, Richard C.; Sander, Michael J.; Venkateswaran, Kasthuri; Wittenberg, Curt; Young, Laurence R.; Zhang, Ye (2018). Life Beyond Low Earth Orbit. Washington, DC, USA: National Aeronautics and Space Administration. PDF
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Mac Os Download
van Loon, Jack J. W. A.; et al. (2012). A Large Human Centrifuge For Exploration and Exploitation Research. In, Annales Kinesiologiae (vol. 3, no. 1, p. 107-121). Koper, Slovenia: University of Primorska. PDF
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Young, Laurence R. (2018 January 31). Artificial Gravity – Background and Challenges: to Spin or Not to Spin. Future In-Space Operations (FISO) Working Group presentation. PDF MP3 [“We respectfully ask folks to download files once … With regard to MP3s, the right way to go is probably not to stream the audio, but to download the whole file and then play it.”]
Young, Laurence R.; Yajima, Kazuyoshi; Paloski, William (Eds.) (2009 September). Artificial Gravity Research to Enable Human Exploration. Paris, France: International Academy of Astronautics. PDF
Other Information Sources
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Brandeis University. Ashton Graybiel Spatial Orientation Laboratory. HTML
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Fraundorf, P. Ring Rotators and Artificial Gravity. An exploration of the limits of rotation, bounded by light speed at the maximum radius and Planck’s constant at the minimum radius. HTML
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NASA. Skylab astronaut making his own artificial gravity. MPEG [Clipped from http://spaceflight.nasa.gov/gallery/video/skylab/skylab2/mpg/skylab2_mission1.mpg]
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At a glance
Cons
Our Verdict
The “endless running” genre that was first made so popular by Semi-Secret Software’s Canabalt has been explored in many recent App Store releases, and Miniclip‘s Gravity Guy looks to expand further on the idea by introducing an interesting gravity-based mechanic into the mix.
Gravity Guy throws you into the shoes of a mysterious gnome figure with the ability to flip gravity at will. You’ve just escaped from prison, and now you’re on the run from what appear to be law-enforcement robots. It’s a minimalist story at best, but it does a decent enough job of setting up the action that follows.
As the gnome, you’ll run from left to right automatically. A robot will always be hot on your tail, so the trick is to not get caught up on parts of the environment, or you’ll be caught and promptly zapped with a laser gun. The only real tool at your disposal is your ability to flip gravity, which can be accomplished by tapping anywhere on the screen. You’ll have to use timing and your character’s momentum to successfully make it across large gaps, while other level segments will require you to rapidly switch gravity to avoid small gaps in levels.
An interesting (and I think problematic) part of the game’s design is that flipping gravity while in midair simply doesn’t work. This often makes the game unnecessarily frustrating, especially because of the speed at which later levels move. There are plenty of checkpoints, but I found myself dying over and over again so many times in some segments that the game was no longer fun. It’s a very trial-by-error sort of game, and while that actually works for games like Super Meat Boy or Mega Man, the fact that you have no real control over your character’s movement makes Gravity Guy downright frustrating.
There’s a multiplayer mode that allows up to four players to gather around one iPhone screen and compete to see who can survive for the longest amount of time, but (as you might imagine) even two fingers jabbing at an iPhone at once is enough to completely obscure the on-screen action from all of the players, so that too is a throwaway addition.
Gravity Guy isn’t a bad game, especially at its price point, but players who put any amount of time over 20 minutes into the game will find that eventually it becomes something of a joyless chore to play. If you’re in need of a pick-up-and-play title to tide you over on your commute the game might be worth considering, but most gamers will want to pass on this one.
[Ryan Rigney is a frequent contributor to Macworld.]