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About YNM

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  • Location West Java
  1. Rocket aerodynamics are lame. All you need to do is avoid failure, not having the least drag. Pointy things are more prone to failure, probably - hence round.
  2. Finally ! Welcome to the wild world. KSP is a game, despite being "pretty realism-complete". Your standard jet engines IRL is only going up to like 30 km, and while they do about the same in-game, in-game atmo is only 70 km while IRL it's 100 km and Kerbin's atmo is 10% radii while ours is only 1.5% radii. There's not enough air for the engines to run into without making ProblemS for everyone. Yes. But that's it. They're barely helping with reaching orbital velocities. And height, in case of a converted or normal turbofan aircrafts.
  3. Must be great to spend however many times you have, and to extend it a bit everytime they get confused.
  4. More like tapped here - thought this was about linking to things not meant to be seen. On that note...
  5. You should've go there if you could ! But I think some of the eclipses in other times will come closer to European mainland than US.
  6. I always like how japanese people depict their space things happy. And being really happy about it. Daang I missed this one. I thought it was tomorrow.
  7. Rocket and the jet stage staging :
  8. You westerners can always fly somewhere to get another one. 90% won't make the sky dark, but it'll be colder. And the tree shadows are going to look nice. -------- In related news : Why's eclipse.gsfc.nasa.gov not showing up, instead redirected to tomorrow's eclipse site ? I want to see when eclipses comes near enough to my place again...
  9. Those are split seconds. Here's what they do.
  10. Not every adults can pull that mate. More so for 8 minutes at least on launch and another 8 minutes or so at even higher peak gees on reentry. If one wants to send any, most likely it'll be teenage to late teenage. Though I do get why OP (you) asks such question. If humans want to become interplanetary society it'd mean that everyone should be able to do the travel. So until we can launch anyone to space with ease, we aren't there yet.
  11. We are all kids anyway, to some parents. If you mean by "kids" as "minors" or preteenage - teenage, then I guess it comes down to whether they'd survive the usual test of launch... and reentry. Now those I'm not sure.
  12. I'm somewhere in this FoV.
  13. The last thing I googled (wiki-ed ?) was about railway signal safety system (PZB and AWS, the later abreviated here) on google. At least I could get away on the train... Although the one for AWS shows this instead, so...
  14. In such cases they usually put in more payload instead. I presume it works out about the same. Or they could loft in a different trajectory such that it comes about the same in the end.
  15. I'm very, very sorry if my wording sounds too harsh. In truth I know nothing and I can't comprehend anything about their finer details either. My only knowing is that these things exist and are extensively exploited in polar orbits. I found this Q&A which references... blew my mind to pieces. Even tidal forces are easier to do than them - but they are from near-antiquity ! Even getting Kepler Laws from Newton's Equation of Motion looks easier. I'm really sorry if this sounded like hoccus poccus to you, they sort of are mathematically at a glance, but intuitively they are to be expected. I mean, if you randomly orbit a rugby ball, there are going to be times where one of the more convex poles pulls you harder than the other - you're not always pulled to the center of mass of parent body. That's how the drift kicks in. The only question is whether it's only the nodes or the apsides - you might predict it should be both in some ways though, which it really is. There are just special states where it congregates in one.