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Everything posted by KerikBalm
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A Spring/Gas Based Impulse Space Propulsion System
KerikBalm replied to Spacescifi's topic in Science & Spaceflight
What? Just... what? I'm sorry, but I cannot extract any coherent idea or concept from the text you have typed. can you attempt to reformulate it with an emphasis on making it understandable to someone who doesn't already know what you are trying to describe? -
Lists of things that SHOULD NOT BE ADDED IN KSP2
KerikBalm replied to Lo.M's topic in Prelaunch KSP2 Discussion
No It is pertinent to the thread topic, and not against forum rules. I listed things that I think do not belong in KSP 2, one of which has previously been discussed in other threads, and I need not reiterate arguments here, but will respond to any such arguments. Definitely no to micro transactions. DLC is ...okaaaayyyy... if it is done well and doesn't just add stuff that really should have been in the game upon release. If the game feels incomplete without the DLC, the DLC is an abusive way to get more money. Earned re-skins (retextures) are fine. FWIW, I don't care about re-textures, and I wouldn't neccessarily mind purely cosmetic microtransactions, because I'd never be tempted to buy them, but it is a slippery slop. Dunno about fortnite trash (I know what fortnite is, generally speaking, but no specifics), and dabbing is dumb as heck, but I really don't care as long as they don't annoy me by spontaneously dabbing. Career mode is fine with me, I'm not sure what you mean by "i like money", the progression mode, as they've described it, does not have limited funds, but rather limited resources to construct stuff off world, related to what the colony can produce. Orbital rings would need multiple groundstations to stabilize a ring in which each segment of the ring is travelling at orbital velocity. Its essentially a space elevator that goes to low orbit instead of stationary orbit. The top of the "elevator" needs to end in a "tram" that rides on top of the ring, most often proposed to be a maglev tram, because friction from direct contact with the ring moving at orbital speeds would be... prohibitive. I'm not sure how you'd go about constructing one, I have some ideas, but I think we need a whole thread for that. -
Just a rando thread for people to debate the historicity of various stories. Was there a Robin Hood/ is there a kernel of truth to the stories? Was there a king arthur/ is there a kernel of truth to the stories? Was there a Romulus and Remus that founded/ is there a kernel of truth to the stories? (ignoring the raised by wolves part) What about the *ahem* relations of recently founded Rome with the sabine women? Are the vikings sagas describing skraelings actually stories of the first contact between people of Europe and North America? Was Euhemerus right about any of the origins of the myths of the greek gods? https://en.wikipedia.org/wiki/Euhemerus Can I go on to certain figures of currently practiced religions (as opposed to greek gods), or is that verboten on this forum?
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Lists of things that SHOULD NOT BE ADDED IN KSP2
KerikBalm replied to Lo.M's topic in Prelaunch KSP2 Discussion
I mean... why not orbital rings, or mega structures like launch loops and such. Also, they need not be so mega on places like Gilly Other things: - Weapons - metalic hydrogen engines - dangerous xenomorphs - functional alien spacecraft/living alien civilizations -
What is HMV? https://en.wikipedia.org/wiki/Hyperbolic_trajectory I know tis is an old post that somehow got necro'd, but a change in velocity at Pe has a big effect in the change in velocity at a given distance from a body, and of course, a big effect in the change of the hyperbolic excess velocity when the trajectory becomes hyperbolic. " Velocity Under standard assumptions the orbital speed () of a body traveling along a hyperbolic trajectory can be computed from the vis-viva equation as: where: is standard gravitational parameter, is radial distance of orbiting body from central body, is the (negative) semi-major axis. Under standard assumptions, at any position in the orbit the following relation holds for orbital velocity (), local escape velocity () and hyperbolic excess velocity (): Note that this means that a relatively small extra delta-v above that needed to accelerate to the escape speed results in a relatively large speed at infinity. For example, at a place where escape speed is 11.2 km/s, the addition of 0.4 km/s yields a hyperbolic excess speed of 3.02 km/s. This is an example of the Oberth effect. The converse is also true - a body does not need to be slowed by much compared to its hyperbolic excess speed (e.g. by atmospheric drag near periapsis) for velocity to fall below escape velocity and so for the body to be captured." Ignoring tidal effects, being able to reach a black hole of lunar mass in lunar orbit means that for the dV required to reach the moon plus an arbitrarily small amount of dV, you can get anywhere in the solar system, with an arbitrarily high speed (arbitrarily close to c). Of course, tidal forces will prevent you from getting arbitrarily close to the event horizon, and thus from getting arbitrarily close to c before your burn. Still, if you want a trajectory that gets to Mars in a week, you can get that... don't know how you would plan on stopping, but for a more moderate speed boost, you could have pretty quick outbound journeys with just a few hundred m/s more spent on the capture burn (while you'd be saving a few hundred m/s, at least, since a Mars intercept trajectory takes 480 m/s more than a lunar intercept trajectory) We could send a probe to Sedna real easy, and get it there real fast...
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This isn't a space elevator, you don't need carbon nanotubes. If it's a venus type atmosphere, I am not sure how carbon nanotubes hold up to the temperature and sulfuric acid. If its a gas giant, there's no surface to attach to for practical purposes. Why call them structures? It implies something static. I am very much in favor of various buoyant craft, from submarines to airships and more. To the thread title, I would love colonies floating on liquids as well
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Internals for colonies, ships and stations
KerikBalm replied to Cyborg_delta1's topic in Prelaunch KSP2 Discussion
I mean... they already have internals for all crewed parts in ksp1. It would be nice if you could move your kerbals around inside, and if you needed to pay attention to how crewable parts connect... But I don't need internals for a massive city sized colony -
Objective: Is a 100% Radiation Proof Spacesuit Possible?
KerikBalm replied to Spacescifi's topic in Science & Spaceflight
No matter how good your radiation shielding is, it can't stop everything. Any amount of radiation shielding is insufficient against an arbitrarily high source of radiation. Also, we need to define what kind of radiation... EM radiation like X-rays or gamma-rays, or particle radiation? For gamma radiation, you basically just need to put mass between you and the source. Dense material like lead is attractive for reducing bulk, but you still need a similar amount of mass. A suit to protectagainst gamma rays would be prohibitively massive, even if it wasn't bulky. Blocking alpha radiation on the other hand... easy peasy. -
Objective: Is a 100% Radiation Proof Spacesuit Possible?
KerikBalm replied to Spacescifi's topic in Science & Spaceflight
No, it is not -
You are wrong, if you produce it on the run, you are just making a really heavy and inefficient powerplant. If you use fusion to power the collider, then just have a direct fusion engine. You don't get more energy by converting to AM, you lise a lot through inefficiency. AM would allow you to store a lot of usable energy, but then you need to store pre-produced AM
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Haven't updated to 1.11, l would think you could weld on this: https://wiki.kerbalspaceprogram.com/wiki/Pegasus_I_Mobility_Enhancer next to where you want to place your part, then just have the kerbal grab on to that when you place the next part, then remove the ladder at the end. Regarding the root part issue, could you assemble a robot arm with a mini-claw, undock your craft, then grab your craft with the mini claw, then release it... would the part that was grabbed (resulting in the same effect as docking, as far as KSP is concerned) then count as the root part of the undocked craft? This would result in the need to carry ladders and parts to build robot arms for full construction capabilities, but that sounds ok to me. Even in zero G? It would be nice if you could move heavy parts with a robot arm until they are in very close proximity to where you want to attach them, and then have the kerbal do the weld... More questions: Can you do anything resembling symetry, or get CoL indicators and such? I am very interested in assembling winged landing craft in orbit, prior to descent
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Super Scifi Medical Tech VS Gravity Centrifuges For Space
KerikBalm replied to Spacescifi's topic in Science & Spaceflight
I think that this belongs in the lounge Your proposal is really vague, there is no science to evaluate in it. "A machine that fixes your body, like stargate" really seems like a lounge topic to me -
Compressed light tube?! (or black hole devices?)
KerikBalm replied to Arugela's topic in Science & Spaceflight
Ummm, you can't throw one part of physics away without throwing it all away, but... What? I have no idea what you are trying to convey. What??? Are you talking about a kugelblitz? Yes you can do that. What??? Sure, you can make a kugelblitz, dunno why you want to power a computer with it though... -
Many vaccines require booster shots, this is nothing specific to mRNA
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Sure we have, we even get net power from the reactors that we call "bombs"... but we still have no practical reactirs for supplying electricity. :p
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Well, thats in line with any other system having the energy leak out. Still, a fusion reactor using P-B fuel, or any other aneutronic reaction, has inly stable isotopes: https://en.m.wikipedia.org/wiki/Aneutronic_fusion Then there is thorium-232, perfectly usable, 14 billion year half life... Just a bit longer than the age of the universe... I wouldn't worry about it. But yea, RTGs... those are another story (pu-239 though, for use in a reactor, nit an RTG, has a half life of tens of thousands of years)
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I must say, I think I agree that most oof these threads belong in the lounge. Sci-fi ship = bomb is not really a scientific question. The answer is simple and the concept well known among hard-scifi as a simple consequence of KE calculations, similarly with drive dangers (see the kzinti lesson)
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Im seeing very little mention of capacitors as a battery here... They don't all have to discharge all of their energy at once, I am pretty sure. Anyway, nuclear power sources relying on chain reactions obviously control the output, while an rtg doesn't. A battery as we commonly speak of they is actually a voltaic cell, which were called batteries when you need ed whole arrays or batteries (same sense as an artillery battery) of cells to get sufficient power. I suspect that what scifi wants is a rechargeable energy storage device that you can just charge by supplying it with electricity.... But then normal non-rechargeable alkaline batteries don't count, so I really don't know what he is asking or how he proposes mmH as a battery (unless conbected to a heat engine generator, and a compressor capable of remaking mmH). Also, he is wrong about many things about batteries. One example is that a molten electrode battery does not slowly discharge in any significant way, although those are generally single use batteries, as found on missiles. https://en.m.wikipedia.org/wiki/Molten-salt_battery
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I would strongly disagree, but that is a topic for another thread. I didn't say do nothing. There are intermediates between doing nothing and a full lockdown. In Switzerland, we are getting through the 2nd wave without a full lockdown, and even that is with poor compliance amongst the population regarding proper mask wearing and social distancing. Certainly the US f-d up by not even passing legislation to guarantee 10 days sick leave for infected people. One shouldn't have to choose between having money for food, or infecting others. Its also ridiculous that a law would be needed. There's a lot that can be done short of lockdown.
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FYI: https://cmmid.github.io/topics/covid19/uk-novel-variant.html Estimated 56% more transmissible, no statistically significant difference in severity has been noted- which is a bummer, because I would have bet money that this strain was at least a little milder (granted, it is one study, awaiting peer review, and as more data is gathered, we may see a difference)
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The thing is, I am a bit of a misanthrope that thinks that overpopulation is the biggest problem in the world right now, so that kind of colors my views about what should be done. :p It doesn't just affect them, but it mainly affects them. Some people do develop long term side effects, but most do not. But seriously, the setbacks to people's lives is severe, and giving these 20 and 30 somethings such a setback is going to have compounded effects over their whole lives. In the other hand, if people stopped being so stupid, and actually observed the proper precautions and lockdowns, we'd only need a 2 week lockdown to be done with this virus... But people are stupid This is the 3rd SARS-CoV to come out of China, but they kept reopening the wet markets, because people are stupid. The population density is so high and allowing the virus to spread so easily because the earlier generations were stupid and couldn't think of the future. This virus is a monument to the stupidity and selfishness of humanity... so... at times I see stupid and selfish behavior and almost want to root for the virus.
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We do have a vaccine against the flu, and it needs to be updated every year. Already based on studies of other coronaviruses, immunity after infection (and thus likely vaccination) is unreliable after 6 motnhs-1 year. This was always going to be something that would require a yearly shot for those that are at risk. The idea is if you can vaccinate the at risk population, the rest of the population can get back to life as normal (and even if they don't get yearly vaccines, the last vaccine should provide enough protection that the newest SARS-CoV-2 strain isn't that bad).