lajoswinkler

Yes, you can order it. Metal shops can use a lathe to make you a nozzle out of most construction metals. Maybe not every shop, but in general they do it. I'm not sure about the prices, though. It's probably not cheap unless you find a really good deal, simply because that's one order instead of series of orders. Custom made nozzle is for advanced rockets where de Laval shape actually means something. If you're building anything less sophisticated than those things people launch in Nevada, you can go with approximations or even regular holes. Use high pressure PVC pipes for engine blocks, and mount them in rocket body made of lighter, thinner, more rigid polymers. You can make engine blocks out of rcandy for fuel, gypsum for nozzle and hot glue for sealing the top. Keep them in small, tightly closed containers because they're hygroscopic. It's almost an art to get the best results. No, you can't do that with engines. The point of contact will become the point of violent breakup. Don't do that unless you want CATO.

A fuzzy dot in the sky, at most.

What's the purpose of this thread? What surgery? Complicated wisdom tooth extraction?

No, but there have been reports about sudden errors and I wouldn't like that to happen around some stuff I'm building.

Yeah, that's a minor thing, really. You can't expect perfection with a work in progress. Does ALCOR work ok in v0.25. for you?

DMagic Orbital Science is cool. I share your critique. It's more about grinding nowdays. I hope it will change.

Yes, rapiers will overheat. SSTO's I've tried to build don't work so I gave up. I don't care, though.

I'm not sure if Raster Prop Monitor has this function, but ALCOR might. It might also have externam cameras as parts. Not sure, though.

Squad will release that stuff for Mk3 parts in v0.26. Soon.

What do you mean by stock-alike? Looks? Performance? Procedural Parts has procedural solid rocket boosters. Various textures, and you can tweak its performance and shape. I use it to make my custom sepratrons.

Instead of "planet" it should be "planetary body" or simply "celestial body". Where did this idea about "planets" come from? I see it all the time.

I was not talking about those "lost astronauts" who allegedly screamed help over radio. That's almost certainly a hoax. If you strap a human being into rocket as a payload, he/she doesn't need to speak anything. Its function is to be an organism subjected to test. Germans did it during Third Reich. Japanese did it. Not with rockets (because they still weren't advanced enough), though. I would be surprised if Soviets didn't, give the fact the country was hell on Earth.

If he enlarges it totally, then the atoms and everything become larger, not just their distances. In your case, there would be an implosion, and a nasty, loud one.

No, you'd be pulled apart by the tidal forces into subatomic particles. A quark-gluon plasma is what would remain of you right before you strike the center. Then who knows what happens?

1. Does that mean everything inside is enlarged by volume, or by adding matter? If it's the first case, the cell dies quickly because there's nothing it can feed on anymore. For other questions, ask Stephen Hawking. http://www.damtp.cam.ac.uk/people/s.w.hawking

This will come in handy to lots of people on this forum. http://www.lightpollutionmap.info It makes things such as searching for areas suitable for stargazing rather easy. There are even few years to choose from so you can see how things gradually get worse. Data for northern latitudes isn't very correct, but for most of the inhabited planet it's OK. The map is color-coded for the amount of radiance of visible light. Fishing boats can be seen, too.

Only for small and medium ones. The ones like in the center of Milky Way, and any larger, it would not be the case unless you're rather close to the center, which is deep inside the event horizon. If there was a black hole the size of our universe, you wouldn't feel tidal forces, but the sky would look all loopy instead of black and dotted with stars. Stable orbits in black holes do exist, but not for entire worlds. If you're a particle, you could get by.

Mission to mercury? Or mission to Mercury? If you're gonna use baking soda and vinegar, you should try the first mission.

In order for the object to experience weightlessness, its acceleration (scalar and vector) must be zero. Aside from climbing through troposphere, when air drag is a significant counter force, engines being on mean you're under acceleration and therefore your mass resists it. You are constantly pushing against your seat, and the seat pushes into you. When the engines are turned off, you feel like you've been fired out of your seat. Your whole body feels as it's falling down and it would be very unsettling to anyone unprepared. Ever been in an airplane that flew through an air current that made it drop down? A fast elevator starting to go down? A drop tower? That's the feeling, but a lot worse, and it lasts indefinitively. Acceleration can be concerned with a vector, such as when you're spinning around a center point and held by a centripetal force. You will experience centrifugal force. However, when orbiting Earth (even in LEO) is concerned, the distance between your body and the barycenter of you-Earth system is so huge that you behave almost as one material point and no apparent forces are observed. They still exist, though, and are called microgravity. Strap two steel balls together using one metre tethers to a sensitive dynamometer and let them be; soon you'll read the force on the device. The ball closer to the Earth is in a lower orbit and thus orbits faster. That's why any loose objects in ISS will eventually cling to the walls. In case of much more concentrated masses, the acceleration of the vector part of velocity is so dramatic it pulls apart molecules. Small and medium sized black holes are like that.

I was commenting a typical satellite launch. In no way it is suitable for launching people. Heavy modifications are needed. I was talking about typical satellite launches and all I got from this thread is dogbiting strawman fallacies. OMG. I'm outta here.

Because rocket launches are visible, as well as the satellites. Even back in the time of Apollo, people all over the world were watching (visually and by radiotelescopes) the orbiters. Nowdays with WWW, it's 100% impossible to hide anything up there.

This is probably fission, not fusion. Ah, Reuters.

For the comet, it will be like a foreign kid entering a classroom full of douchebag preppie kids - everyone suddenly turns toward it and watches it in silence and the comet goes "okay, I'm just gonna move away now, you're all creeping me out..."

It's not a theory, it's a hypothesis. So where is all this material coming into our black hole? Where is light? If we were inside a black hole, we'd notice it. The sky would never look the way it looks today.

Nibb is right. I mean, you can go outside and look at it. It's there. Probably growing something valuable, testing newest navigation technology, etc.