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Everything posted by MBobrik
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Kethane Pack 0.9.2 - New cinematic trailer! - 1.0 compatibility update
MBobrik replied to Majiir's topic in KSP1 Mod Releases
A noobish question. I downloaded the 0.8.8.1 sources. can someone tell me, how can I compile them into a working plugin ? -
Well, I do. it's getting already a little rusty, so, I will welcome any opportunity to use it once again.
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Rotor Kites as Alternatives to Parachutes
MBobrik replied to shynung's topic in Science & Spaceflight
would a rotor of the size needed not be much heavier than a equivalent parachute ? I don't know, I am just asking ... -
Monosilane. Cool. I knew someone here will find something.
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Boiling point of liquids under negative pressure
MBobrik replied to Sillychris's topic in Science & Spaceflight
there won't be negative pressure. at sufficient speed you would just create a bubble filled with diluted fluid vapor. -
What would be the most practical fuel to power a jet engine in a CO2 atmosphere ? I know there are very reactive chemicals that react rapidly with CO2, I know that for example magnesium burns in CO2, but magnesium is solid, and I think it would be very hard to design a jet engine that runs on solid fuels. There are also strong oxidizers like dioxygen difluoride which burn with almost everything, but those are usually too instable to be practical. There is also the reverse water shift reaction, H2 + CO2 => CO + H2O, but it is endothermic. Tried to google it directly, but all what I found were articles about global warming. I have found that the H2S + CO2 reaction would be exothermic, but found no information about whether it could proceed fast enough to be useful. . So, has someone a better idea ? What fuel could be used to power a jet plane in a carbon dioxide atmosphere ?
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Horizontal landing on Minmus.
MBobrik replied to Othuyeg's topic in KSP1 Gameplay Questions and Tutorials
Try that on Tylo (ducks and runs) -
Could a Gyroscopic inertial thruster ever work?
MBobrik replied to FREEFALL1984's topic in Science & Spaceflight
. If you want to conduct a proper experiment you will need to compute/know the expected magnitude of the effect and the precision of the measurement beforehand. Because even if there is literally nothing you will always find a small deviation from the null result due to various measurement errors. so when you measure for example net acceleration of 0.01 m/s^2 you can not know whether it is due to error or your effect without knowing the expected values of the two. . But if you really try to compute the acceleration your device produces using newton's laws, you will get exactly zero. all mass inside moves along a closed path ending up where it started, so all contributions have to average to zero and you should get zero net acceleration .In fact, any acceleration you would find above expected error of the measurement, would be a direct falsification of newton's laws. -
Feasibility of fission fragment rockets
MBobrik replied to Accelerando's topic in Science & Spaceflight
Well, as Red Iron Crown already said, the biggest insurmountable engineering problem is our civilizations radiophobia. the second is general disinterest in space travel. Solve those two and you will have all sorts of nuclear powered spacecraft flying around in the solar system within a decade ... But i think that this train already left the station. we are just too decadent to turn around. When the next civilization rises ( well, the one after the next, the next being a technophobic fundamentalist dystopia ), we can try again. -
Skylon may fly this year, first SSTO spaceplane?
MBobrik replied to Naten's topic in Science & Spaceflight
this year ? Only by using magic, time machine or if our entire civilization stops doing anything else, or any combination thereof. -
attach stairs to various landmarks like the armstrong memorial, mun arches and the desert temple
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well, we prefer the better one... we just can't agree about the definition of "better":)
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Personally, I think that it is better to assemble any heavier hardware in-orbit and thus above a certain threshold, the capability to lift more weight in one go becomes irrelevant. An I think that with falcon 9 heavy, so that it is cheaper to launch 3 falcons heavy with 3 parts plus the equipment necessary to dock them together in-orbit than to launch one SLS. Thus pushing SLS to a very narrow niche of launching special stuff that can't reasonably be assembled in-orbit.
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inverting the motor in wheels?
MBobrik replied to Macko939's topic in KSP1 Gameplay Questions and Tutorials
... one moment ... testing ... yeah, you are right. Left and right keys are switched, but not forward/backward. Didn't know that it doesn't invert everything. Fortunately I never had to use it -
inverting the motor in wheels?
MBobrik replied to Macko939's topic in KSP1 Gameplay Questions and Tutorials
right click on a wheel to invert steering. has to be done for each wheel. . -
hauled stuff to Jool's moons
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don't put into, build there.
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Or just with a ship propelled by a nuclear engine with seven digit Isp
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Maybe the ISP forces a disconnect once a day, or goes offline for a few minutes and your router, for what ever reason, gives up attempting to reconnect. But when you can still access the router, you can still restart it remotely.
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You are abducted by aliens. You may ask 3 questions. What do you ask?
MBobrik replied to Tex's topic in Science & Spaceflight
1. How could we help each other ? 2. How does your ship's drive work ? 3. Why have you just taken me, instead of contacting our governments and properly establishing interstellar diplomatic relationships ? -
It is not very efficient because if you drop only tanks without the engines, your TWR goes up unnecessarily. You would be better off dropping both an empty tank and the corresponding amount of engines so that your TWR remains more or less the same ( which is what the asparagus staging does ) and you will not have to carry unnecessary dead weight engine mass with you.
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What traits of humanity are you proud of?
MBobrik replied to Drunkrobot's topic in Science & Spaceflight
I don't think that expressing doubt about the meaningfulness of the question is derailing. . Another example. I say I am proud of my typing speed not knowing that I am at the very bottom percentile of typing speed distribution... sounds stupid, and it surely is. And that is exactly what the question is inviting us to do. -
What traits of humanity are you proud of?
MBobrik replied to Drunkrobot's topic in Science & Spaceflight
If you don't know what are the "traits of humanity" to begin with, how can someone say what of them he is proud of ? . example. Some will say "intelligence", only to discover centuries later, that compared to other sentient species in the galaxy our intelligence can at best be charitably described as "stunted". . Or one says "creativity" only to realize that it is an universal trait shared equally by all sentient beings. . Or saying "curiosity" while later research will show that the variation between humans is three orders of magnitude larger than average difference between humans and other sentient species. -
What traits of humanity are you proud of?
MBobrik replied to Drunkrobot's topic in Science & Spaceflight
How can we know that something is a "trait of humanity" when we have no other sentient species to compare and contrast with ?