nyrath
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Posts posted by nyrath
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{ Marvin the Martian voice } Dee-lays, dee-lays. All these tiny little problems keep cropping up. As Londo Molari would say, it is like being nibbled to death by cats.
I've spent several hours trying to troubleshoot a Blender into Unity import problem. Fixed it but it took too long. If your Blender file has too many images stored in the UV cache, when you import into Unity you'll have a phantom extra material that will make parts of your rocket transparent.
And I've just discovered that my rudimentary part.cfg file for the atomic bomb magazines will only attach to the cockpit part, it refuses to link to the crew capsule.
All these little things are keeping me from hacking the .dll for the motor.
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Everything in the Space Odyssey books and movies are quite realistic. Including the lack of sound in space.
That's because Sir Arthur C. Clarke was the co-author and technical adviser. About the only unrealistic thing was the lack of heat radiators on the Discovery, which Clarke wanted but was over-ruled for cinematic aesthetic reasons.
Wow.. what an impossible choice.. I don't think I could name my favourite one. Star Trek's ship designs were pretty spectacular I have to say, but if I was going to pick one ship from my childhood that I really wanted to go on, it would probably be.. (see if you can guess it)That's the Odyssey from Ulysses 2031.
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I stopped taking this thread seriously. Most of what you are saying is based merely on assumptions. I also have to say, very unlikely assumptions
...snip...
Maybe to you, but not to me. I see all life as important, and I fail to see why that would change in a type III.
Yes, but by the same token, what you are saying is based merely on different assumptions. It is just that we are disagreeing on which set of assumptions are unlikely.
Again, you may see all life as important, but you probably are facilitating the killing of life because you eat animals and plants. The difference is where one draws the line of what level of organic development is too high to casually kill.
In Stephen Baxter's science fiction Xeelee novels, for the last few billion years two Type III civilizations have been engaged in a life-or-struggle: the Xeelee and the Photino Birds.
http://en.wikipedia.org/wiki/Xeelee
Towards the end, the Xeelee foresaw their defeat, and started creating an escape route. The Xeelee Ring is sort of a star-gate, several million light years in diameter. Current day astronomers know the Ring as The Great Attractor.
http://en.wikipedia.org/wiki/Great_attractor
The Photino Birds do not want the Xeelee to escape. So they are throwing galaxies at it in an attempt to destroy it. So the reason galaxies are heading to the Great Attractor is not due to gravitational attraction. It is due to the technology of the Photino Birds.
In this universe, do you think the Photino Birds care about the trillions of sentient beings living in the galaxies the Photino Birds are using as weapon projectiles? They are in a pitched battle with the Xeelee, and do not have the inclination to worry about such things.
But they could. I mean, the kardashev scale only refers to energy usage.Yes, my point is that maybe they could, but that's not the way to bet.
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Well, unusually you have
propellant mass
structural mass
power plant mass
propulsion system mass
payload mass
Generally the astronauts and the habitat module are considered part of the payload mass.
The total of everything is the "wet mass", the total minus the propellant mass is the "dry mass"
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I have some specifications on the NASA space tug here
http://www.projectrho.com/public_html/rocket/realdesigns.php#id--NASA_Space_Tug
And don't forget NASA's concept of a reusable nuclear shuttle
http://www.projectrho.com/public_html/rocket/realdesigns.php#id--Reusable_Nuclear_Shuttle
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Looks great! Have you got pictures of the engine working?
Alas, no. First I have to hack together a .dll to implement the explosions, the pusher animation, and the nuclear bomb magazines.
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They use LIQUID Hydrogen....
I'm not sure what you are saying. Promii said hydrogen has a very low density, and it does. Regardless of whether hydrogen is gaseous or liquid, it has an annoyingly lower density than other gases or liquids.
LH2 has a density of about 71 kg/m^3 while kerosene is more like 800 kg/m^3.
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Making the individual magazines jettison-able is taking too much time. Heck with it, I'll do that in the future, when I've gained more skill at mod making.
For now I'll just make a single "fuel tank".
I may have to scale this down, I'm not sure it will fit in the VAB.
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I swear to ... >.>
Do you all not read? A type III civilization is all about advancements in technology and energy use. Type III where once type 0 just like us. They do not all of a sudden forget that. Comparing humans to bacteria is retarded, just stop. That comparison makes no sense as humans and bacteria are totally different. Even if we where to scale a human to the size of a bacteria, we still would be entirely different organisms.
I fear you have not thought this all the way through. You seem to be under the misapprehension that the entities of the Type III civilization are going to be identical to the Type I civilization entities they evolved from. Way before the Type I evolved to even Type II they are going to hit a technological singularity
http://en.wikipedia.org/wiki/Technological_singularity
Look at the timelines suggested in the linked article, and realize that it will probably be millions of years before we reach Type III (assuming we do not destroy our civilization before then).
Type III species will probably be entities that have uploaded their minds into their version of a cosmic internet and formed multi-mind colony creatures. The same way single celled organisms evolved into multcellular organism like us, our single-mind organisms will evolve into multiminded organism.
Type III species are not going to be like Star Trek federation members walking around with more powerful phasers.
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No I dont but then again bactaria doesnt know how to put rockets into space or are self aware. Even though a type3civ would be far superior to us they would probably recognize our intelligence and our self awarens. We are after all a sentient species which a type3civ would be aswell notmatter their leve of intellect.
Also nomatter how much time you give bacteria they will never rise to our leve of intelligence because they are not built in such a way that inteligence is possible.
We may not consider bacterial to be self-aware because our level of self-awareness is at such a higher level.
A Type III civilization may not consider us to be self-aware because their level of self-awareness is at such a higher level.
Ummm, you do know, do you not, that human beings evolved from single celled creatures much like bacteria?
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All this above is assuming that a type3civ do not care about life of any kind and just swoop in to grab anything they like. I find this rather hard to believe. If a species advances to that point I would like to think that a higher moral standard would follow with the evolution of the brain. What is the purpose of traveling around the universe if you fail to recognize that other species might rise to the same point given time.
Well, not to put too fine a point on it, but do you worry about all the bacteria you step on as you walk? They can be detected. And they can rise to our point of advancement, given time.
Buddhists say a little prayer over their feet, for the benefit of all the bacteria and insects they inadvertently step on. But they still walk around.
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For a ton of ideas on unrealistic and realistic spaceships, including lots of actual nuclear rockets, "atomic rockets" is an invaluable resource. Plus, if you have doubts, the creator hangs around here.
Indeed I do hang out around here. Mostly I sit and marvel at the stunning creations produced by the Kerbal Grandmasters. And at the incredible flexibility of a computer game that would allow scope for these creations.
Personally I'd like to see somebody make a Pilgrim Observer.
http://www.projectrho.com/public_html/rocket/realdesigns.php#id--Pilgrim_Observer
It is boosted into orbit on top of the second stage of a Saturn V. In orbit, the shroud is jettisoned. The NERVA nuclear engine extends outward on a long telescoping boom, to help protect the crew from radiation.
When the engine is not thrusting, the three habitat modules swivel out, then start spinning to produce artificial gravity.
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re: Trimodal nuclear thermal rocket
Oh man, I... I need this. Can someone with modding skills make one? It would be perfect for use with ion engines that require tons of electricity for another level of higher ISP lower thrust. Also for Kethane conversion in the outer solar system.Alas, the basic problem remains. Nuclear reactors, whether inside a NTR or as a dedicated power reactor, have too much mass. Currently the blasted things are 18 kilograms per kilowatt. This means a reactor for a 200 kilowatt VASIMR is going to be about 3.6 metric tons. Which will have a crushing effect on your thrust-to-weight ratio.
What is really needed is some advanced technology to drastically reduce the kilograms per kilowatts. Then the trimodal NTR will be incredibly useful.
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2. A type III would most likely have automatic protocols on it's ship to detect intruders and to repair itself. We already have check engine lights in cars, and we are a type 0.
Yes, but if you roll down your automobile window and a stray Epulopiscium fishelsoni bacterial floated in, your automobile will not tell you. Why? Because you really couldn't care less.
The only time you are likely to care is if, say, you notice the foul odor coming from the month-old used hamburger wrapper wadded up in the back seat. Then you'll look, throw out the wrapper, and spray some disinfectant.
In the same way, a Type III civilization might not have any human detectors in their solar-system-sized mobile habitats because they really couldn't care less. Unless the humans created a civilization capable of making a metaphorical odor strong enough to attract the Type III's attention.
3. Smart people don't kill ants for fun, at least not usually or on purpose. I know I certainly do not. Also it's not like we are destroying the entire ant species. To say we don't treat their lives as something delicate is also wrong as it can cause issues in our ecosystem. It's why we have laws about killing certain animals and such. A type III would probably be even more aware of this then we are.Imagine a family picnic. Some ants show up. Little Billy gets annoyed, tracks the ants back to their nest, dumps a cup of kerosene onto it and lights a match. The ant nest is annihilated. Billy gets called back to the picnic for ice cream.
Imagine a gathering of Type III entities. Some human starships show up. Little Beta-Lambda gets annoyed, tracks the starships back to Earth, and seeds it with five gigatons of neutronium antimatter. Earth is annihilated. Beta-Lambda gets called back to the gathering for euphoronic frequencies.
4. Earth resources is not rare. This seems to be a huge misconception due to movies. A type III wouldn't have any issues getting resources from a planet with no life.Depends upon what sort of resources they are interested in. They very well could be interested in some resource that our science has not discovered yet (Wow, Zzazel! That planet is incredibly rich in poka-dotted quarks!).
Then us poor humans will find ourselves in the same spot as a primitive African tribe who does not understand why these Western stranger want to bulldoze their village in order to dig up the dirt. The westerners tell the tribesmen that the dirt is called "Coltain", from which they can extract something called "Tantalum", which is absolutely vital for something called a "Cell Phone." But to the tribesmen, it looks just like the same dirt that is everywhere else, and more specifically, in places that are not under their beloved village. This causes hard feelings, but unfortunately the westerners have something else called "automatic rifles".
And that's if the aliens are a Type II civilization, who might actually bother to notice our existence.
5. A type III is very unlikely to be hostile. What reason would they have to be hostile toward us? Now, if we ever happened to get in a war with a type III, for what ever reason, we would be killed. It would be like a 30 second war.Right, except I doubt our civilization could do anything a type III would even notice, much less actually have any effect on them.
As a matter of fact, we might not even be able to detect them. Can bacteria detect men?
6. The biggest issue with the whole thing is the comparison of humans to bacteria.Why? Bacteria could have similar conjectures about titanic multicelluar creatures such as ourselves.
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Thanks OrbitusII! That will come in handy
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Like MBobrik said, it is better to have the blast directed at the plate. Assuming the plate is strong enough to handle the blast without being damaged.
The point is that every single kilogram boosted into orbit costs like crazy in terms of propellant. So you want to get as close as you can to 100% utilization from whatever unit you are boosting. Having less than 50% of the blast being usable is wasteful.
Rocketcat sez: Every Gram Counts
http://www.projectrho.com/public_html/rocket/basicdesign.php#id--Every_Gram_Counts
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Incredible!
And the title music in the video is the perfect choice.
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You can't use a massless fuel.
Well, there is a reason for this.
The only propulsion system that uses propellant that has no mass is the photon drive. Which requires 300 megawatts of power for each pathetic Newton of thrust. Not kiloNewton, Newton. How many RTGs is that going to take?
Propulsion systems that do not use propellant at all are "reactionless drives." They would be great, were it not for the unfortunate fact that they violate the law of conservation of momentum.
http://www.projectrho.com/public_html/rocket/reactionlessdrive.php
Science fiction writers who postulate that their SF universe has a reactionless drive have created another problem for themselves. These drives are so fuel efficient that it gives you the ability to shatter planets with the Naval equivalent of a rowboat.
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Wow! That's hardcore!
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Just a heads up - you should look up info on "smoothing groups". Right now, all of your models are using one smoothing group, which accounts for their strange "soft" appearance.
Thanks! I will.
Though I will point out that those images were rendered in Blender. I will go on to point out that in Blender I was purposely setting everything to "smooth" because I did not know about smoothing groups in Unity. So thank you!
As a side note, as per the USAF 10 meter Orion, each "level" of those 6-clusters of melted looking white things is a separate "fuel tank" (actually a nuclear bomb magazine). You will be able to stack them, using only as many clusters as you need for the given delta-V requirement.
I need some advice from the mod-makers.
Look at these images, then I'll explain my dilemma.
The fuel tanks are called "magazines". They are those green fat poker chip shaped things. They are clustered around the central spine. When they are empty, they are ejected, as you can see in the last picture. Note the "ejection actuator" in figure 33.
The problem is that after they are ejected, the central spine remains.
I was thinking that I could get away with having the magazine part as six-magazine clusters with a slice of central spine. Stack them and you'd have stacks of magazines, and a central spine that was automatically the right height to accommodate the stack.
But then I cannot eject a cluster. If I do, everything below the cluster will be severed from the rocket proper and fall off. Including the Orion drive.
I could make a part just an individual magazine, instead of a six-magazine cluster. It seems to me that will create problems in making them work with the other standard Kerbal parts.
Or is there a way for a part that is six-magazines to somehow destroy just the empty magazines, and leave the central core alone?
What do you all think?
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If I may recomend a suggestion for your next brilliant engine design, how about the nuclear lightbulb engine? It is a clean nuclear engine, with 3000 ISP at sea level and around 4000 or so in vacuum.
And if he does have the inclination, he knows there are some reference images here
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Any News? I can't wait to bomb my ships around the Kerbol-system.
I know it is hard to wait. I've got a C# development system set up, and have successfully compiled some sample code. I'm trying to pick apart the Orion code samples I've been graciously gifted with to figure out how they work. It is slow going. I'm currently trying to make the mesh model that of the USAF 10 meter Orion, which is a bit taller. I'm working on the fuel tanks aka nuclear bomb magazines, they have odd shapes. In the images below they are not textured yet.
Patience, this all takes time to do all by myself.
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You touch on a point that's a bit of a pet peeve of mine when it comes to teaching history: History is not just a list of facts and dates. It's the story of how mankind has struggled against its environment and itself to build the society we have now. It's about the bloody drama. Too much time is spent in classes on rote memorization of "important" facts, and not enough on challenging students to think about why those facts are important."
And as a side note, I will mention noted SF author Ken MacLeod who said "History is the trade secret of science fiction." All the way back to Isaac Asimov, if you want to write about galactic empires, do some cribbing from history.
http://www.projectrho.com/public_html/rocket/futurehistory.php#id--Historical_Events
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In Blender, you will have to find all the materials, make a new texture for them, have the texture of type Image, load the appropriate file, and set the mapping from Generated to UV
Why does the LV-N need oxidizer?
in KSP1 Discussion
Posted
The trouble with blasted liquid hydrogen is that the atoms are so small they sort of wiggle out between the atoms of the fuel tank. To hydrogen, everything is porous.