15 years? I had no idea that Shawyer had been fiddling about for so long with this.
..Thanks for your input, it means a lot.I plan to keep to keep one end of the frustum exposed about 10 mill above the water and I'll be happy to get a max of 1 mill of Z deviation.
Quote from: Rodal on 06/10/2015 07:54 pmhttps://hackaday.io/project/5596-em-driveSo how are we going to pull N/W out of that data? Or mN/mW?
https://hackaday.io/project/5596-em-drive
Quote from: aero on 06/10/2015 09:54 pmQuote from: Rodal on 06/10/2015 07:54 pmhttps://hackaday.io/project/5596-em-driveSo how are we going to pull N/W out of that data? Or mN/mW?Without a non-thrusting baseline or knowing when the thrusters were turned on, I don't know how one would pull any data out of this.
Quote from: Prunesquallor on 06/10/2015 10:09 pmQuote from: aero on 06/10/2015 09:54 pmQuote from: Rodal on 06/10/2015 07:54 pmhttps://hackaday.io/project/5596-em-driveSo how are we going to pull N/W out of that data? Or mN/mW?Without a non-thrusting baseline or knowing when the thrusters were turned on, I don't know how one would pull any data out of this.The legend tells you when the thrusters turn on. Vertical red line
Everyone check out Hackaday.io! Results are up and data is looking good.
Quote from: Blaine on 06/10/2015 07:52 pmEveryone check out Hackaday.io! Results are up and data is looking good.Maybe I am missing something, but what is exciting about having the device spin slower in both prograde and retrograde configuration? Are we sure that's not just friction? Have they tried to spin it up?
Quote from: Prunesquallor on 06/10/2015 10:09 pmQuote from: aero on 06/10/2015 09:54 pmQuote from: Rodal on 06/10/2015 07:54 pmhttps://hackaday.io/project/5596-em-driveSo how are we going to pull N/W out of that data? Or mN/mW?Without a non-thrusting baseline or knowing when the thrusters were turned on, I don't know how one would pull any data out of this.The data? It was the big data they were after and it seemed to work. Looks like they are doing things to eliminate errors and seem to be doing it to gain solid data upon further testing.My hat's off to them and they just stirred the big ant pile.
Here is a google doc that reddit user /u/TortugaTerritory put together that overlaps the figures and draws some trendlines (posted with his/her permission). Helps to make some of differences clearer. https://docs.google.com/presentation/d/11TVN9vE_ZB7NjdB05UzJDJjjoQsGCNWWyQl5L70jAF4/edit?pli=1#slide=id.gb342f84ab_0_61
Quote from: deltaMass on 06/10/2015 06:30 pm15 years? I had no idea that Shawyer had been fiddling about for so long with this.I have been suspect of several research projects that seem to be extended for dubious reasons. Trouble with emdrive, its simplicity puts it into a broad realm of experimentors...no exotic componentry.Question I have is why it took so long for experimentors to focus on it. I know electronics is now plug and play, but 15 years to get general intention? Curious...
Here's a slightly clearer picture of the Hackaday.io graph.
Disturbing to se the EM Drive's strange preference of one direction vs. another (reminds me of the issue with NASA turning it around by 180 degrees).