Timeline for Delaying the development of aircraft
Current License: CC BY-SA 3.0
7 events
when toggle format | what | by | license | comment | |
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S May 29, 2017 at 17:10 | history | suggested | Gryphon | CC BY-SA 3.0 |
fixed grammar
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May 29, 2017 at 17:04 | review | Suggested edits | |||
S May 29, 2017 at 17:10 | |||||
May 21, 2017 at 1:27 | comment | added | a4android | @Andon. Thanks for your well informed response. A very useful set of comparisons. It makes me wonder why Titan has an atmosphere and yet Ganymede and Europa do not, but that's another matter. | |
May 20, 2017 at 20:10 | comment | added | Andon | @a4android Titan is 0.0225 Earth Masses. Mars is 0.107, almost five times as much, where the Moon is 0.0123, slightly over half of Titan's mass. The BEST comparison, mass-wise, is Ganymede, at 0.0248, or just over 110% Titan's mass. For surface gravity, Europa is a closer match, at 0.134g vs Titan's 0.14g. Both Ganymede and Europa lack any form of significant atmosphere, though. | |
May 20, 2017 at 13:02 | comment | added | a4android | @Andon The comparison between Earth and Venus is good, but comparing Titan and the Moon is not so good. Their masses are very different. A comparison between Mars and Titan is better as their masses are closer, yet their atmospheric densities are different. Otherwise the rest of your comment is OK. | |
May 20, 2017 at 6:14 | comment | added | Andon | Just going to point out that gravity amd atmospheric density are not hard locked. Yes, increasing gravity on Earth would increase density, but this is a fictional world with the parameters of my choosing. As some comparisons, Earth and Venus have very different atmospheric density with roughly the same gravity. And Titan and the Moon have slightly different atmospheres as well. Regardless, discussion of atmosphere is something for a completely different question. | |
May 20, 2017 at 0:45 | history | answered | StephenG - Help Ukraine | CC BY-SA 3.0 |