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Everything posted by OdinYggd
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Granted. Now you have no excuse for messing up things that anybody else can do correctly. I wish I had a million dollars.
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The hull was reskinned anyway. Nuclear subs are designed to have an ocean's worth of cooling water to pump through a condenser. What this one did is they removed the condenser, and replaced the outer plates of the hull with a double wall heat exchanger. Leftover steam goes to the plates near the surface, where the heat is radiated and the water condenses to return to the cooling system. There's also provision to isolate damaged panels just in case, since you end up with a fairly vulnerable function of the vessel exposed on its surface. Though it's designed as a light freighter, so it isn't expected to have to deal with much more than micrometeorites. The skeleton of it should handle the vacuum of space much easier than the pressure of 200 meters of water, since the steel trusswork used to make that happen would have similar properties in either direction. Redoing the surface of it enabled the addition of an improved seal to make it airtight instead of just watertight.
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Mind if I help you with that Chobit? Edit: Okay just watching that clip you posted I need to get more of this. Looks like an interesting concept. In my own writings one of my favorite ships is KN1-86A 'Gallileo', which is actually the converted hull of a nuclear submarine that had its reactor modified to be the core of a nerva engine.
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True. There were a few acceptable disneys in that time period. But for the most part from 1996 to mid 2012 or so there was barely anything actually good. Very few songs from that time range are enjoyable to me, and most of what was on TV was junk. Sorry, not a fan of voyager. ToS all the way, Kirk shows a very Kerbal way to explore space. And I can agree that Enterprise should not exist. According to the original timeline, NX-01 should not exist. It was in development around the time the library computer was invented, and used an older computer technology that required dropping out of warp periodically to confirm position as well as being unable to handle such a large offset mass while at warp. Because of that improvement in computing, the NX-01 design that would originally have become NCC-1700 and the pathfinder for the Constitution class was instead dropped in favor of NCC 1701 "Enterprise", which incorporated the new technology in its systems and shows the standard design seen throughout Star Trek.
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Multiplayer will not be implemented in the near future, due to a very severe limitation in that it currently is not possible to move multiple vessels with any kind of accuracy. If it happens, it will be done as a mod developed by the game community- a lot of people are already working on the problem. There are lots of threads about this scattered about, please read through them as nearly every aspect of what multiplayer for KSP should be like has been gone over.
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Postcards from Laythe - Cancelled indefinately
OdinYggd replied to chobit-389's topic in KSP Fan Works
Welcome back Chobit. I was starting to get worried that we'd seen the last of PFL, just when it was starting to really look like it could go somewhere. Hopefully the written part of it makes some progress soon to go with all this amazing art. I'll be watching, so keep it clean. Like I said before, if I have to split posts again there will be consequences. You're welcome to voice your concerns privately with the staff, perhaps there is something we can do to ease your fears. This thread is about PFL, and should not be used in a manner that forces it off topic or violates forum rules. -
Which nuclear accident ware worse Chernobyl or Fukushima
OdinYggd replied to Pawelk198604's topic in Science & Spaceflight
The lag is only a few percent of the total reactivity, but it was enough that Chernobyl buried itself in neutron absorbers while running at too low a power. Because the core was poisoned they had to pull the rods up unacceptably far to get enough reactivity to restart, and once it restarted not only was there the problem with the rod tips but the neutron absorbers also were quickly consumed by further irradiation- making the reactor rapidly become more reactive than it had been. Your neutron flux changes almost instantly with your rod movement, but other factors such as power history, thermal mass, and rod reactivity all conspire to make several different bands of control lag varying from the half-lives of neutron absorbing isotopes that were produced by the reaction to the time it takes the core to heat up or cool down. That kind of surprises me though that the nuclear submarines actually can throttle their reactors quickly. They'd have the same physics constraints as a power reactor, just smaller scale because they use a higher density core with highly enriched fuel. I would think that there would still be a noticeable delay between control movement and output change, since it takes a brief period of time for the steam output to rise or the turbine to accelerate. -
Good old rocket candy. The Estes rockets have nozzles made of clay. You could probably purchase clay from a craft shop and produce a similar shape. Mind you, since your engines appear to be larger inside they'll need a larger nozzle so as not to build up an unacceptable pressure.
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Granted. I lock the thread to protect it from being spammed. I wish I had bacon.
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Which nuclear accident ware worse Chernobyl or Fukushima
OdinYggd replied to Pawelk198604's topic in Science & Spaceflight
Yes, nuclear reactors do have a variable power output. Just they're extremely slow on the draw- nuclear submarines get around this by using a battery bank to capture surge loads while waiting for the reactor output to change. However, they become unstable at low output percentages as demonstrated by Chernobyl, and the thermal mass of the system makes them take a very long time for the output power to respond to changes in reactivity. Plus there's the whole decay heat problem, the controls end up having significant lag on order of hours between what the operators commanded and what the reactor's actual output is. Typically they are indeed used for base load, operating at their maximum permitted output at all times when not under maintenance. -
Which nuclear accident ware worse Chernobyl or Fukushima
OdinYggd replied to Pawelk198604's topic in Science & Spaceflight
Pretty much. Although Fukushima is indeed leaking contaminated water, almost all of the core material remains inside the containment- it simply did what three mile island did, melting out of it's assembly to collect in a solid mass on the bottom of the reactor vessel. Most of the contamination that is escaping is short-lived byproducts like tritium, caesium, and iodine. These will be naturally cleaned up to safe levels after a few years, and other than inside the reactor building the radiation level is for the most part just abnormally high- not seriously dangerous. Chernobyl remains dangerously reactive to this day, the reactor hall only allows 15 minutes exposure for instance while the area around it is restricted to only a few hours. With radioactive dust and bits of core materials having been blown all over the place, not only was there the initial mess to clean up but the equipment used to do it also became highly contaminated and had to be abandoned as well as nuclear waste. Three Mile Island on the other hand has been completely cleaned up. Today, Reactor Unit 2 is nothing more than an empty building with only traces of radiation left, and the bulk of its hardware removed to be dismantled or sold to other plants as spare parts. Mind you TMI unit 1 is still under power, the steam from it is visible in Harrisburg Pennsylvania. Here's some pictures of Three Mile Island. There's a local road that goes near it that was close enough to get photographs, staying on public roads well outside the safety fence. According to the Nuclear Regulatory Commission website, the reactor was operating at full power when these were taken. Unit 1 cooling towers Unit 2 cooling towers, the empty unit 2 reactor building on the right of this pic Reactor hall, Unit 2 on the left with the functional Unit 1 on the right. It looks like they were adding on to the building for Unit 1, probably in light of Fukushima. Plant entrance But really, other than the prominent steam clouds visible from the highway near Harrisburg, you almost wouldn't even know it's there. And when I first saw the steam clouds I thought it was just a factory until the people I was visiting told me that I was looking at Three Mile Island. These pictures were taken a few days after that when I looked up its location on google and saw a local road on the riverbank, close enough to get a good look without being in any real danger. They regularly hold disaster drills in the area just in case anything happens. As for the idea of putting a reactor in the bottom of a mineshaft, it has to do with the depth of the shaft and what rock formations are down there. The Comstock mines of the late 1800s and early 1900s had to remove tens of thousands of gallons of water a day from the mines to prevent flooding, and were producing such large volumes of silver that it was economical to do so, using some of the largest steam engines ever built to do it. -
Here's what I call the LEAFA rover. Originally it was meant for exploring mun artifacts, but it ended up being such a successful design that I used it on Duna as well for easter egg hunting. The rover itself is only 0.52 tons, and has the legs on the lander set exactly right so that in reduced gravity environments the lander is able to pick the rover up again to carry it to other target areas. In practice though I've not managed to land one with enough fuel in it to reach another site, so I just dock the rover with the lander as a parking garage for it when not in use.
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Granted. I shoot you with a laser instead, because I know where to get those. I wish I knew why my house smells like pizza this morning.
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Granted. you start forgetting to answer the wish above you. I wish I could ride the train.
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Which nuclear accident ware worse Chernobyl or Fukushima
OdinYggd replied to Pawelk198604's topic in Science & Spaceflight
Most mines have to be regularly pumped out because groundwater is constantly seeping in and flooding the tunnel. A reactor could easily utilize that groundwater as part of its coolant feed, reducing how much has to be sent down the hole from other sources, and it wouldn't take a whole lot to sink a number of wells around the reactor's mine to tap into additional aquifers. Fukushima was indeed an old reactor. Most of the reactors in the world are- built in the 1960s and 70s with intention to be replaced after 30 years service. Between Three Mile Island and Chernobyl, public outcry was so intense that all new reactor construction was halted until recently, forcing many reactors to remain in service well beyond their design lifetime and leading to a greatly increased risk of accidents. -
Granted. But there's a spy in your platoon and he shoots you in the back. I wish you guys wouldn't take off like a rocket in the counting thread.