MaximThibodeau Posted April 6, 2018 Share Posted April 6, 2018 (edited) What will be the economical cost to have your ex-wife (or husband) having one year more than you do? If you where the same age... Im beginning calculation right mow, it may take some time The VASIMR Rocket: (https://en.wikipedia.org/wiki/Variable_Specific_Impulse_Magnetoplasma_Rocket) Results presented in January 2011 confirmed that the design point for optimal efficiency on the VX-200 is 50 km/s exhaust velocity, or an Isp of 5000 s **************************************************************************************************** For now Im taking the relativistic equation: As a basis for calculation. This equation come from: In the frame in which the clock is at rest (diagram on the left), the light pulse traces out a path of length 2L and the period of the clock is 2L divided by the speed of light: From the frame of reference of a moving observer traveling at the speed v relative to the resting frame of the clock (diagram at right), the light pulse is seen as tracing out a longer, angled path. Keeping the speed of light constant for all inertial observers, requires a lengthening of the period of this clock from the moving observer's perspective. That is to say, in a frame moving relative to the local clock, this clock will appear to be running more slowly. Straightforward application of the Pythagorean theorem leads to the well-known prediction of special relativity: The total time for the light pulse to trace its path is given by The length of the half path can be calculated as a function of known quantities as Elimination of the variables D and L from these three equations results in the relativistic equation first mentioned. ********************************************************************************************************* The rocket equation: https://en.wikipedia.org/wiki/Tsiolkovsky_rocket_equation where: g0 = 9.8 m/s² and Isp = 5000 second, first assumption for the VASIMR m0 = Initial mass and mf = final mass ********************************************************************************************************* Edited April 6, 2018 by MaximThibodeau Link to comment Share on other sites More sharing options...
swansont Posted April 6, 2018 Share Posted April 6, 2018 ! Moderator Note What does the rocket have to do with the relativity derivation? Link to comment Share on other sites More sharing options...
MaximThibodeau Posted April 6, 2018 Author Share Posted April 6, 2018 With a spacecraft of 13 500 kg with food and water, and a engine of mass 3000 kg: we could in theory achieve 1 second every 2 years, so 1 minute is achievable in lifetime Just now, swansont said: What does the rocket have to do with the relativity derivation? Its to put relativity in context, in a funny learning experience. Link to comment Share on other sites More sharing options...
swansont Posted April 6, 2018 Share Posted April 6, 2018 15 minutes ago, MaximThibodeau said: Its to put relativity in context, in a funny learning experience. ! Moderator Note This is a place to have discussions and ask questions. It's not a blog. Link to comment Share on other sites More sharing options...
MaximThibodeau Posted April 6, 2018 Author Share Posted April 6, 2018 2 minutes ago, swansont said: This is a place to have discussions and ask questions. It's not a blog. Let have a discussion, how to improve this concept, by increasing the results ? Link to comment Share on other sites More sharing options...
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