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  1. Re:Been there, done that. on China Targets 2022 For Space Station Completion · · Score: -1, Troll

    Yeah, maybe the Chinese will take some giraffees and other zoo animals up into space, something you'd have to bicker about with the other nations of the International Space station. Ever heard of such a thing as private property, and the tragedy of the commons? China's space station is like private property for that country, and the International Space Station is like a communist collective contraption. None of the countries really own is as their own.

    Plus they seriously want to live in space, sustainably, unlike the rest of the world. I don't really care if it's Chinese living up there sustainably, as long as they are people. I mean I wish white people did too, but we're too bogged down with economics issues like forced insurance, sky high housing, taxes feeding welfare fuckers breeding out of control, and bickering, to afford anything like a space program. Thanks Obama and all your big dicked welfare recipients breeding out of control for killing our space program.

  2. Re:Great news on Massive Study Searching For Genes Behind Intelligence Finds Little · · Score: 1

    Unlike intelligence, which possibly cannot be measured at all, let alone compared, dick size is really easy to measure and compare. For example: http://www.xvideos.com/video51...

  3. Re:Great news on Massive Study Searching For Genes Behind Intelligence Finds Little · · Score: -1, Troll

    I don't care about the intelligence genes, I want them to find the big dick genes, and retroactively insert that into my DNA, through a maintenance virus or something, cuz I feel smart enough to be comfortable with my level of intelligence, but I really wish I had a bigger dick. I envy them dumb niggas who was born with a big dick, simply because in Africa it's always hot, and their ancestors used to run around naked, and the women selected and bred the bigger dick males, not the smart ones, because life was good, unlike in Europe, where you had to wear clothes all the time, and you had to be smart to live, because the living was hard and often very cold.

  4. Re:Well, we really should be at that stage by now. on To Really Cut Emissions, We Need Electric Buses, Not Just Electric Cars · · Score: 1

    Bismuth is also awesome from the boiling point perspective, it boils at 1564C at atmospheric pressure, and you probably have a range of 1500C to 1600C for pressures between 0.001 bar to 10 bar range. If temperature goes above boiling point, and superheated liquid and bumping phenomena is not strong, you would get a natural, automatic temperature control of the reactor, which otherwise might be very difficult to achieve at such high temperature. All you need is heated vapor space conduits that leads the boiled off bismuth away to a secondary coolant of excess cooling capacity, and a float-like feed mechanism feeding cold bismuth back into the reactor zone, with rates of evaporation and cold feed able to keep up with the most disastrous thermal runaway situations. You would still want some high boiling material, like lead that boils at 1749C or tin that boils at 2602, to maintain liquid contact with the fuel rods even in absence of bismuth all boiled off, and have some thermal capacity for a few minutes while you can feed the cold bismuth back to bring the temperature back under control. Else the cold bismuth might have thermal transfer issues even in a reactor full of superhot fuel rods. Like in soldering, the solder iron tip cannot solder anything, but it is only that droplet of molten solder on it, that efficiently transfers heat, and can solder or desolder anything quickly. So you need something to stay there as liquid even in absence of all bismuth boiled away. The vaporization of bismuth is not as heat absorbing as that of water, and you get some limited cooling out of this mechanism, enough for temperature control, but it should be used as a safety feature at like 2% constant capacity, sometimes tested to 50%, as a secondary circuit, and the main mode of heat transfer out of the reactor should be via the liquid/liquid bismuth/gallium/gallium heat exchangers, and gallium taking the heat to an isolated off site building, to transfer to a high pressure working fluid multistage heat engine room, where things are free to go really haywire and explode without any nuclear radiation release, with gallium reserve backup in case of total gallium loss in that room, and ability to dump the heat directly into the atmosphere, or into the cooling tower, in case of a multistage turbine room catastrophe, like windmills often do through dummy resistors, while the reactor fuel rods are slowly removed up into their neutron absorbing boron 10 or hafnium or hafnium boride coffins and the reactor is shut down, only needing the residual heat heat transfer. There should be mechanisms to dump the heat directly to the air, then directly to the water cooling tower, for safety, or to the turbine room for normal operation. At 1500-1000C liquid gallium temperature, iridium/rhenium, maybe ruthenium and the like, or alloys of these elements, might be resistant to atmospheric oxidation, and be able to transfer huge amounts of heat in huge fin areas that have natural convection upward even in the absence of a stuck fan that should blow that air upward through them fins.
    You need a lot of reserve bismuth and reserve gallium, in huge quantities, for sudden cooling requirement safety issues, such as leaks, to buy time to safely shut down the reactor and quarantine the fuel rods.

  5. Re:Freeman Dyson on The Grassroots Future of Biohacking · · Score: 1

    Or engineering a photosynthetic noneukaryote single celled bacterium that eats all eukaryote lifeforms in existence, and "wins" in the struggle for survival, and exists happily in absence of other species, and the one and only, thie monopolium species left on Earth. It's not impossible to find an Achilles heel in any life form, including broad classes like eukaryotes, if you only look hard enough.

    Which is why self sufficient, completely isolated and sustainable, rotating artificial gravity space stations that take a Noah's Ark style zoo of life from Earth with them, each, is absolutely mandatory, while it's economically and technologically doable.

  6. Re:Wrong Title on Researcher Fired At NSF After Government Questions Her Role As 1980s Activist · · Score: 1

    I does have 2 paragraphs. Maybe I should space them apart better with extra lines next time.

  7. Re:Wrong Title on Researcher Fired At NSF After Government Questions Her Role As 1980s Activist · · Score: 1

    I guess when it comes to employment within the government that is a good question to ask, as you cannot really have employees that don't believe in the team, that's the present government. You cannot run a unit with copperheads, or people willingly going against orders, such as in infiltrated spies or agents that want to fight the government from within through sabotage techniques and the like. (That's one of the most difficult topics, unreliable chain of command, officers that take orders and willingly execute the opposite, how to maintain a coherent functioning unit or organization under deliberate sabotage. Sometimes my mother and relatives totally act like that, they pretend to help you, but when it comes to core principles, they attack you so deeply it's beyond belief. How to function well under circumstances like that?) Even a corrupt or failing government has the right, so to speak, to reliable officers within its chain of command who execute orders and do whatever they can to prevent failure. It's like even criminals have the right to the 5th amendment, and protecting their self interest, or even to double jeopardy, should facts later arise. So that is a good question to ask regarding government jobs. There are other jobs around, in the private sector, for those people who don't answer correctly.

    But not at a citizenship naturalization ceremony, because when it comes to citizenship, protecting liberties and the Constitution that's a contract limiting the powers of government, protecting that is more important than protecting a corrupt government that does not protect that.

  8. Re:Wrong Title on Researcher Fired At NSF After Government Questions Her Role As 1980s Activist · · Score: 1

    Back in those days, under communism, everyone had jobs, zero unemployment, and usually everyone had money, the issue was availability of goods, like standing in line for bread, or standing in line at the grocery store if eggs arrived, and buying so much it would go to waste, for something like 5 cents a dozen, while at the farmer's market they'd sell it by the pair, instead of the dozen, for something like $15 per pair, or at prices where you did not really have that much money. But you had money for things like $5 stamps, while you could not get your hand on food without standing in line for it. My mother used to stand in line for milk every morning at 6 AM to 630AM, returning the old glass jar, and getting a freshly filled one, with an aluminum cap on it, in exchange, and she'd be at work, walking to it for half an hour, by 8AM. Having to stand in line for food, or stores being empty of goods, is a downside of zero unemployment, or guaranteed employment, because nobody ever gets fired, no businesses ever shut down, and economic efficiency is nonexistent, and the stuff does not get produced well, but everyone has a paycheck, but no good stuff to spend on, or only at outrageous amounts. There was a "dollar" store in the sense that you could only shop there if you had dollars, instead of the national currency, and you could buy very high quality stuff in it, but the exchange rate to buy dollars was sky high. It was mostly meant for tourists and visitors. So you had money but you didn't, at the same time. Stamps might seem like a luxury item under the circumstances, but you did not have to stand in line for those, while you had to for basic necessities. I remember one summer when I was like 12, I only had flippers, no shoes, because me and my mother visited like 20 different shoe stores, and none had shoes other than size 16 or size 5, so I spent my summer break at summer camp up in the mountain away from people, going up and down the river, fishing, in rubber flippers, all by myself, simply because I didn't have shoes, to play tennis or ping pong, or go to the dance club in the evening. I could not get shoes but I'd have no problem getting stamps, if I wanted to, because nobody wanted those that much.

  9. Re:Wrong Title on Researcher Fired At NSF After Government Questions Her Role As 1980s Activist · · Score: 1

    The last time I collected stamps I was 6 or 7 years old, barely out of kindergarten. We used to go to the post office, and get a packet of "mystery" stamps, for something like 5 bux, like 100 of them in a packet, and you never knew what you were gonna get, and then you'd have these half-series of gorgeous stamps. I remember the best ones were from Mongolia, and Nicaragua, or all places, really gorgeous and colorful, like huge stamps of hot air balloons or sailing competitions, all vibrant in color, while all Osterreich was really plain and drab, two color, not shiny paper, usually with a sculpture head of some royalty. You'd have an album with slots, where you'd line up the pretty stamps on different pages, and your buddies would have albums too, and you'd trade half complete series, by exchanging albums and looking at each other's collections, and if you saw something that completed your series, and he saw something that completed his series, you could agree on trades. Then you'd go buy some more random ones at the post office.

  10. Re:Wrong Title on Researcher Fired At NSF After Government Questions Her Role As 1980s Activist · · Score: 1

    Yo, chill out. We ain't got nowhere near the dire straits that brought on the Declaration of Independence. For instance, the government is not quartering soldiers in your home, nor is it forcing you to take on Anglican as a state religion, you still have the right to own weapons.. also slavery is illegal without due process such as prison slavery, also women and transvestites can still vote, and nobody is getting burnt at the stake for practicing wicca voodoo, or holding an opinion (like Giordano Bruno was), not yet at least.

  11. Re:Wrong Title on Researcher Fired At NSF After Government Questions Her Role As 1980s Activist · · Score: 1

    These days the government
    -can put cameras up at every intersectino
    -can monitor your location at each moment if you have your cell phone on yourself and did not pull the batteries
    -can log all text messages and emails you send
    -can make you empty your pockets and go through a metal detector at every government building
    -can make you buy products from private parties regardless of price charged, such as mandatory car and health insurance
    -can take your money as taxes and drive you to bankruptcy and give it to other people as welfare checks to raise their kids on, while cutting programs like space exploration, or even military, all the while driving the coffers empty of any funds. Yeah, the government coffers are empty. The government is bankrupt. What's a bigger failure than that?
    - they can do any friggin thing they please, to anyone, including labeling anyone as a terrorist, for any reason, and going on a witch hunt after them. And they might even read your your right to remain silent and what not while doing it, just to rub it in.

  12. Re:Well, we really should be at that stage by now. on To Really Cut Emissions, We Need Electric Buses, Not Just Electric Cars · · Score: 1

    Also when the Earth was young, a couple billion years ago, probably 20% of uranium was U235, but it has since naturally decayed to that 0.71%, and in a couple billion years it will be even less.

  13. Re:Well, we really should be at that stage by now. on To Really Cut Emissions, We Need Electric Buses, Not Just Electric Cars · · Score: 1

    By the way, for those clueless in basic science of physics, temperature is nothing more than the velocity of atomic nuclei, or neutrons. So when a neutron flies very near the speed of light, you can say it's a couple trillion Fahrenheit, and when it collides and slows down from many impacts with moderating, or small atomic weight nuclei that take away some or all of its speed at each impact, it becomes room temperature, of 70 degrees Fahrenheit, a thermal neutron, moderated, nonfast, non-high-temperature.

  14. Re:Well, we really should be at that stage by now. on To Really Cut Emissions, We Need Electric Buses, Not Just Electric Cars · · Score: 1

    Single crystal silicon is grown in quartz crucibles, which are grown in molybdenum crucibles at even higher temperature. There are industrial processes over 1500C, true, of low pressure.

    Moderation is only dependent on atomic weights involved in a compound. It's simple physics. Two balls collide, or more like one of high velocity hits another, and the momentum transfer depends on their relative weights. A high speed pool (billiard) ball completely transfers its motion to another of equal weight, and comes to a dead stop, with the other moving on. A ping pong ball shot at a cannon ball transfers almost none of its momentum, and bounces back retaining most of it for itself. A high speed cannon ball hitting a ping pong ball transfer a whole lot of momentum to the ping pong ball, without losing too much itself.

    Neutrons are ping pong balls, atomic weight 1, very close to atomic weight of hydrogen 1, that you can find in regular, non-heavy-water. Deuterium is 2, still moderates well, and has much lower absorption cross section than plain water hydrogen. Tritium is 3, and rare and radioactive itself, with a half life. Helium is 4, very stable, an excellent moderator. Lithium, that you mention is 6 and 7, good moderator. Beryllium is 9, a good moderator. Boron is 10 and 11, both good moderators, and the 20% naturally occurring B10 is a most excellent neutron capture agent for thermal neutrons, with very high cross section. And we arrive to graphite, carbon, which is C12 mostly (with some C13, etc), but it IS used as a moderator. These moderators, like hydrogen, deuterium and helium, are like ping pong balls for neutron ping pong balls, or pool(billiard) balls like graphite, or even oxygen and fluorine, and they moderate well.

    A good nonmoderator starts at the other end of the periodic table, with the heavy cannonball nucleus naturally occurring materials of uranium, thorium, bismuth and lead. Uranium and thorium are also nuclear fuels, bismuth and lead are not. Their atomic nuclei all act like cannonballs to a neutron bounce, and neutrons lose almost no speed when colliding with them.

    For a nonmoderated, aka fast neutron, aka breeder reactor you need a good nonmoderator, and hydrogen, helium, lithium, beryllium, boron, carbon, oxygen and fluorine are out of the question. Moderated reactors only burn U235, leaving the plentiful U238 and especially Th232 as untouchable materials, or as nuclear waste.

    Looking at http://en.wikipedia.org/wiki/A...
    sorted by Z, uranium and thorium have crustal abundance of about 2 ppm and 9 ppm average amongst the different references. Out of that 2 ppm uranium, U238 is 99.28%, U235 is 0.71% and U234 is 0.0054%. Only that 0.71% U235 is presently used as nuclear fuel in all nuclear power plants around the world, including the 20% of the US electric grid, and 80% of France's electric grid. The remaining 99.28% U238, that would only burn in a fast, nonmoderated neutron reactor, is collected and stockpiled as depleted uranium from the enrichment process and shot around as ammo, as bullets by the military, or as nuclear waste if irradiated and coming from the reactor, nobody wanting to take it, when in fact Ballmer and Gates could make some money on it, by both getting paid to take it, then burning it for lots of electric profit, in a properly designed and private army defended fast neutron reactor. But you can't have no blue screen of death things going down in nuclear plants over sloppy design, nuclear is a different category than mere operating system software. Providing electricity, and even fuel to the world could help avert a looming zombie apocalypse just a little further into the future, and keep powering them mobile phones and laptop computers, preserving their wealth they accumulated, so it's in their personal interest to supply the world with lots of energy and fuel, and avert a zombie apocalypse, a lot more than in somebody's interest who has nothing, who has nothing to lose, and a zombie apocalypse would be a simple "in every difficulty therein lies opportunity."

  15. Re:Wrong Title on Researcher Fired At NSF After Government Questions Her Role As 1980s Activist · · Score: 1

    There is nobody I hate more than the Boston Marathon bombers that did their act seemingly for no reason whatsoever, thereby granting the government a good excuse for unprecedented surveillance and oppression of liberties, which was his very purpose, I reckon, and because of that, because of terrorism without a good reason, he's the biggest enemy of the US ever, seeking to subdue the liberties here. The Unabomber and Timothy MvVeigh each had agendas and clearly understandable reasonings, even if yeou do not agree with their arguments, but they did not seek to subdue liberties themselves, or justice in general, but instead they viewed their activities, however misguided, as a way to protect and promote justice and liberty, and fought for the interests of the US. Even the 9/11 terrorists had an agenda, somewhat, fighting for their own people, but they too are guilty of seeking to destroy liberties themselves in the US, and instituting a police state as a result, government oppression, as a way to diminish the prosperity and economic power of the US. Neither the Unabomber nor the Oklahoma bomber had effects on thue order brought on by 9/11, though true, after the Oklahoma bombings you could no longer walk into the local Federal building without emptying your pockets and going through a metal detector. I miss the old naive days when you could just walk into the Federal building, get your business done, then go home, without presumption of guilty before proven innocent, so empty your pockets please and walk through the metal detector. How long til you have to do that when entering the local police departments, libraries, local grocery stores, and Walmart? Please empty your pockets and go through that metal detector, to make sure you don't have a gun on you about to commit a mass shooting, or a bomb in back pack? What is the world coming to?
    It's like you're better off staying home as much as you can, figuring out a way to be completely self sufficient including grow your own food, and your own clothes materials, and do not go into public places as much as possible, other than what's absolutely required to come up with that property tax money of where ever you live, that you have to earn from other people, because, obviously, you cannot grow money trees yourself, nor be allowed to print it, so you have to get it from others, and interact with them over it. But then you can minimize your exposure to these "unreasonable searches and seizures" that acts of terrorism, that circumstances have made "reasonable."

  16. Re:Wrong Title on Researcher Fired At NSF After Government Questions Her Role As 1980s Activist · · Score: -1, Troll

    If Obama wants gun control to protect the inner city black folk from violence against each other, because he cares about them, then he can do that, on a basis of race and residence. If inner city black folk cannot control their own emotions like they cannot control their dicks and their family sizes, and they keep shooting each other down, take away their guns, based on race, we don't care. But you cannot take away the guns from white people. How about that idea?

  17. Re:Wrong Title on Researcher Fired At NSF After Government Questions Her Role As 1980s Activist · · Score: 2

    Obama cannot take away our guns. What if there is another Pearl Harbor, but this time it's a land invasion of the Continental US, and the US military fails, like France's military failed against Hitler, and then the occupied people were left to defend for themselves, guerrilla style. You say it will never happen? Guaranteed? How do you know for sure what the future has in store?

  18. Re:Wrong Title on Researcher Fired At NSF After Government Questions Her Role As 1980s Activist · · Score: 5, Insightful

    Russia or USSR or the Soviet Union is notoriously more violent against all kinds of people, including their own people, than the USA or any of its past governments ever were. For instance, during the Stalinist purges 40,000 military officers were executed point blank. What a waste of talent, executing the best of the best of a population? I have yet to see the US government do anything like that, "purges," executing the best of the best in anything, on a massive scale, but the tone of the government is slowly shifting in such a direction.

  19. Re:Wrong Title on Researcher Fired At NSF After Government Questions Her Role As 1980s Activist · · Score: 2

    I remember filling out that form and checking no on the have you ever advocated the violent overthrow of the US government. I have not, and I am still not, nor will I in the foreseeable future. I still believe it's possible to reason with the government, and the people up there are not malicious in intent, yet only protecting their own corrupt buddies who funded their elections, and themselves, but they still want the good life for everyone, once they do get elected. But the principle to be allowed to advocate such a thing stands, and every citizen should belong to such a group. and the government does not have the right to police such advocation, but instead do a deep introspection on themselves at what the motives or causes are that would bring such consequences on.

  20. Re:Wrong Title on Researcher Fired At NSF After Government Questions Her Role As 1980s Activist · · Score: 1, Troll

    They should amend the Constitution where the government cannot ask questions like that. It's not their business. The government should do the best job it can and always assume the people will violently overthrow them if they don't do a good job. Case closed. If you're the government, you're not allowed to ask that question, because it's like violating the 5th amendment rights of your citizens. Any citizen who swore on the Constitution to protect liberties also swore on defending those liberties from government abuses, including overthrowing a failed government, and if anybody says no, I never belonged to such an organization, they failed as a citizen of the United States of America at their duty to defend basic Liberties. We always belong to such an organization at all times if we are true citizens. We would also violently fight off foreign invaders into the Homeland, such as another attack on Pearl Harbor, especially if they bring troops to the continental US. That's what the 2nd amendment right is there for, the right to own weapons. I have yet to see a weapon, that the 2nd Amendment applies to, that's not violent. They say the pen is mightier than the sword, but that weapon is covered by the 1st Amendment, and is more important, and should be resorted to always before the 2nd Amendment is ever resorted to. If Japan invades the Continental US, and you can talk them out of it by reasoning with them - such as Pope Leo did convincing Attila not to take Rome, and instead turn back - you should always use that method first, reasoning with people, show them respect, hoping they return it, as opposed to a violent weapon's disrespect. But the 2nd amendment made it to a very strong finish as 2nd place amongst all amendments, because violence, or the necessitiy of it sometimes, is that important. For instance, if a bear attacks you, it's difficult to use the 1st Amendment to combat it, and you better have a shotgun. Sometimes people act like animals you cannot reason with, and you have a right to a shotgun if they attack you. Even if they are animals you cannot reason with, hopefully they go about their business and do not attack you, so you never have to use your gun. I love all bears from a distance, I wish them all to live long and prosper, I'd even help them out in trouble, or feed them if I have extra food, but all the while I better my have weapons, like a shotgun, or at least a sword or a knife or a club or a wooden stick, something more than just a bare fist. Same goes for a government as goes for bears or people that attack you. If they can just be over there and leave you alone over here, you can both go about your business just fine and coexist peacefully in the world. If not, then you resort to reasoning with each other first, using free speech abuses, using the pen is mightier than the sword.

  21. Re:Wrong Title on Researcher Fired At NSF After Government Questions Her Role As 1980s Activist · · Score: 5, Interesting

    I never thought about that aspect of skiing, surrounded by all white stuff. I still don't like to ski, or more like never ski'd in my life, nor would I want to. I used to go sled riding though as a kid, but I would not enjoy it anymore as an adult.

    The 2nd amendment, right to self defense, is there for the very purpose of allowing the people to violently overthrow a corrupt government that has failed them. It did not make it to be the very first amendment, because free speech, freedom of expression is that much more important and has been curtailed that much more often. Of course a failed government, paranoid about being overthrown because of feeling their own ineptitude and losing control of the situation, will start witch hunting anyone with the slightest signs or tendencies to promulgate such actions. What else is new. Fuck da Man and all his bitches he pimped into the highest offices in the government! Power to da People!

  22. Re:hmmmm on California Tells Businesses: Stop Trying To Ban Consumer Reviews · · Score: 2

    I was just gonna bring up the topic of EULA's. But thanks for doing that instead. And it's not just VMware, but all heavy iron SQL database vendors like MS SQL Server, Oracle, IBM DB2, etc. A decade ago I used to look at storagereview.com for harddrives, then I'd look for database performance reviews, just to find out the software EULA specifically forbids those. What a load of crap?

  23. Re:Well, we really should be at that stage by now. on To Really Cut Emissions, We Need Electric Buses, Not Just Electric Cars · · Score: 1

    Oops, germanium does not melt low. My bad. So nix that one from the mix, unless used in minor quantities like silver is used in lead free low melting silver-tin (-antimony-copper-etc) solder.

  24. Re:Well, we really should be at that stage by now. on To Really Cut Emissions, We Need Electric Buses, Not Just Electric Cars · · Score: 1

    Oh yeah, in case you haven't read it in my previous posts, see the neutron cross section data at http://periodictable.com/Prope... where you can also find boiling point, melting point, density, neutron mass absorption and the like data, per elements. Elements stable to nuclear neutron bombardment are important in nuclear applications, because compounds are wrecked to elemental pieces from the high speed neutrons, and all you get is a bunch of free radicals that might be very corrosive, unless the recombination rate is faster than the chance to corrode anything, as it might be in a molten salt. Fluorine moderates, and chlorine is very neutron absorbing, but I don't have individual isotopical data for chlorine, but bromine and iodine are better than chlorine regarding absorption, also less moderating, however their nonmoderating barium, strontium, rubidium and even calcium and potassium compounds might be more volatile at extreme temperatures than chlorides or fluorides would be. None of the salts though have the neutron economy of pure bismuth, or even lead, or the very high boiling tin (which might be added for safety to even bismuth running at 1500C, whose boiling point is 1564C, compared to lead at 1749C, compared to tin boiling at 2602C, or even gallium boiling at 2204C, in case of a thermal runaway the higher boilers stay liquid longer with good thermal cooling contact, and they, tin and gallium, have decent neutron cross sections, and low melting points. That's the other problem with molten salts, the getting stuck frozen hard pipes of salt, which take forever to dissolve out with water (maybe hours or days for a couple ten yard pipe segment, so a very high dissolution rate salt should be considered, possibly anhydrous baked rubidium iodide, or calcium iodide might be such a thing), and impossibility to melt with an external torch, compared to low melting bismuth, lead, tin, and even gallium and especially germanium (boiling pt. 2820), and their alloys, all being low neutron absorbers, also indium dumped as shortstop into such molten alloys in case of a sudden need for reactor shutdown, which is also low melting, high boiling, and an excellent neutron absorber (at least one of its isotopes got to be.)

  25. Re:Well, we really should be at that stage by now. on To Really Cut Emissions, We Need Electric Buses, Not Just Electric Cars · · Score: 1

    I've made some posts in the past, including this very post exactly why hydrogen by itself is not a viable energy carrier, but liquefied ammonia would be. I also made posts on sulfur-iodine cycle-like ways of direct hydrogen generation from nuclear heat, (needed for that ammonia,) instead of going to low efficiency thermal engine + electric generator+ electrolysis route.
    I also made post about dreaming 1600C operation temperature with Argon gas blowing through banks of breeder fuel rods, and molybdenum structural materials, and a hafnium neutron absorber coffin for those fuel rods to fall into or melt into in case of a catastrophe.
    I also made posts about bismuth metal as a heat exchanger, though true your molten salt idea might be less corrosive than liquid metal on structural high temperature and high pressure materials which tend to be metals. Unfortunately, the problem with molten salt though, compared to pure bismuth, is the moderation, unless your salt is like bismuth iodide, but the iodide absorbs neutrons strongly, so maybe bismuth sulfide, or lead sulfide might work, and not be so corrosive, but the sulfide part moderates a lot stronger than pure bismuth, because of lower atomic weight. Also I don't have a list of cross sections based on isotopes, and even high absorbing iodine might have isotopes that are very low absorbing, or bromine or arsenic or the like, but for a salt you're very limited in options of the anion, nonmetallic part, as they all tend to be small atomic weight for high electronegativity, like fluorine and oxygen, and these two would be awesome in low neutron cross section too, unfortunately they moderate a lot more than liquid metals like bismuth, lead, or even gallium would. Nonmoderation allows you greater distances for safety in a fast neutron breeder reactor, for thousands of unmoderated long distance neutron bounces, including having clearance gaps of up to 1 yard for control rods, so they don't get stuck and become uninsertible under a thermal meltdown structural deformation.
    Some kind of happy medium between liquid metal and nonmetallic saltness might be found, and if "salty", or a compound with a somewhat electronegative element, therefore low maybe low alloying metallic corrosion on structural metals, in compounds such as bismuth iodide, or telluride, or phosphide or sulfide, but even bismuth is a 5th element group of the periodic table, and it's a positive cation metal instead of a negative anion in its compounds, and tellurium is almost like that (plus it's neutron absorbing), and even things like polonium or the halogen astatine are metal-like. It's hard to get a salty salt that's nonmoderating because you lack a high molecular weight elemental anion, except iodine, which is also neutron absorbing, and also forms extremely volatile compounds. So high thermal conductivity liquid metal of bismuth, bismuth-lead, lead, or even gallium right outside the reactor it is (no sodium or NaK please), or low density high speed argon gas (unless some of the xenon or krypton isotopes turn out to have low cross section, at the prevailing neutron velocities. I don't have data, but isotopically pure materials are almost mandatory in nuclear structural, neutron absorber, or heat exchange working fluids.)

    As a summary, I have two ideal solutions:

    - 1600C/3000psi high melting low neutron cross section molybdenum vessel, liquid Argon working fluid injection flowing through fuel rod banks that are half inserted/guided in a Hafnium coffin, and they can be individually lowered into it or raised out of it to control their individual temperature, including dropping all of them at once into all the holes for a sudden shutdown, or melting them into the coffin absorber material in case of a catasptrophe like a megafireball meteorite crash into the reactor. The 3000psi/1600C Argon might go through a turbine all the way to liquid Argon vacuum temperatures, as the heat exchanger and bulk reserve inventory of irradiated Argon might be easier to handle that way, especially in case of a shutdo