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Everything posted by PB666
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What is the most dangerous chemical that you know about
PB666 replied to Ethanadams's topic in Science & Spaceflight
The boric acid is to absorb neutrons, the sulfides come from the redution of sulfates, though, the source of which is not apparent, the radioactivity should create reducing conditions in the pond due to heat and conversion from more stable metals to fast oxidizable metals. If you want to keep the smell down the boric acid is a problem so they would need to add a base. Sulfide has a pka in the eightish range so you kind of want the pH around 9 or so. A base above 9.5 would constantly absorb CO2 from the surrounding air and raise carbonate concentation, basic sulfides are attraced to metals like iron and will preciptiate. Once the filters are pulled into the air the higher pCO2 will cause them to start smelling. Having thought about the metallic strontium, even with one outer shell electron would not be a good thing. Since hypochlorite or hydrogen peroxide would not neccesarily be stable or a good thing, sulfate is a stable situational oxidant that could be added to prevent reduced strontium from producing H2 gas, therefore its probably added to prevent this from happening. -
What is the most dangerous chemical that you know about
PB666 replied to Ethanadams's topic in Science & Spaceflight
Well im sitting on the sofa with Assembly language Step by Step, The C programming Language and an Ipad with no spell checker. If reading a whole book about C does not ruin your English syntax then you are truely multilingual. lol. I just saw the same code written in hexadex and C, remarkably the hexadecimal code was easier to understand, ;^). The problem with I pad is that when you move your fingers rapidly close to target letters, even without contact they add characters. Ok, but the divalents should not be able to evaporate off a still pond surface, There is extensive chelation between the oxygen of adjacent water molecules and the outer electron shells increasing the effective molecular weight. The only real way to make them accumulate is to add a monvalent acid like hydrochloric. In the basic form with CO2 present they will be pretty much in a powdery film at the bottom of the pond. According to the folks that studied radiation in farmers around chernobyl, the true and significant danger came from burning chaff, the radioactivity was not bad, but chaff contains associated dirt from roots and that contained strontium isotopes that was only volatlie in the context of a highly convective fire, and breathing was the way in. So its not actually easy to get strontium isotope into the body, its not easy to build up a concentration at higher pHs but if somene were to go suitless diving to the bottom and started taking in water they could get dosed with isotope. If they did that repeatedly I suspect they might start to see bone specific radioactivity. So the little graphic showing the danger dose zone, but the rods could be on one side and the diver could be handing off the bottom and stirring up radioactive carbonates on the other side, simply because thats where the carbonates settle. Whether or not strontium leaches out from the pellets depends on the coating, but i would suspect that fission results in decreased density of the products, so that there would be a tendency for the pellets to expand and present fissures. This does not also mean they will leak, but near boiling water at high pressure is rather corrosive itself over long periods. -
C, C++, C# Programming - what is the sense in this
PB666 replied to PB666's topic in Science & Spaceflight
Yeah this author is doing that up until he gets to the Ret, then he starts backing stuff off the stack into the registers. The problem here is if you cant change the values below the calling stack pointer in the stack before the return call, you can only access them, which means at most you get a parsable 64 bit number on the return. In VB at least you can change the arguments of the procedure unless you use the byval modifyer, this means you have access to the args before the return. Anyway Im sure ive not got all the details right, i see many GFPs in my future, lol. It looks as if the only way to access the AL procedures is through C calls, at least no other alternative is given. I will have to do more research. This was designed for a linux C call that's supposed also to work with C++. -
C, C++, C# Programming - what is the sense in this
PB666 replied to PB666's topic in Science & Spaceflight
Wow, these procedure calls are archaic, or maybe thats how C makes the code portable. . . To pass variables you have to load them onto the stack in reverse order, but accessing the variables does not remove them from the stack; they have to be repointed or manually removed from the stack after return call is made. If the procedure is a Function proper then EAX 32 has the return value, but if its 64 bit it has to be placed in EDX and EAX. Seems is not the most clever way, particularly if you want to send an array of data to a routine you would send a pointer in EAX to where the datasegment begins. I'll have to keep this in mind because this appears not to be specific to AL calls but to all function calls in C. -
http://www.upi.com/Science_News/2015/10/07/Ancient-rocks-reveal-earliest-instance-of-photosynthesis/4561444168335/ While the article is not click bait, there are some click- baity popups so you can ditch these by locating the microscopic x in the top right corner. We talk about life on mars but one advantage of earth is the availability of light, more so now than in the past, as well can be said about mars. The importance of light and evolution is key, is phototrophs appear quickly after the first cell it provides leverage for the importance of oxygen.
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http://www.eurekalert.org/pub_releases/2015-10/fopu-pac100715.php This is an interesting article. What makes this article interesting is These results are in the verification process. The bottom line is that fundemental properties of the universe can be tampered with below the types of forces in which relativistic gravity gives way to quantum gravity.
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Falcon and an Isreali team are going to the moon.
PB666 replied to PB666's topic in Science & Spaceflight
You mean like trying to right your horizontal space craft by using the reactions wheels and rolling all the way to a regions lowpoint instead. Then giving up, turning off the gravity in the debug window, bouncing up in the air and landing, only to unhack gravity and have your kerbal knock the rocket over agian trying to get back in the capsule. Repeat the process several times before realizing that landing struts mounted on standouts are a much better idea. Better at least if you dont want to waste alot of weight adding RCS and thrusters. All the while you've amassed considerable practice zeroing horizontal dV and submetric touch down velocities. Nah, that type of training could never result in a hopping design. On a more serious note, you would know it was KSP inspired if the places they hopped from to were considerably different enough to qualify as 'omes', and if they managed to do this more than once. -
C, C++, C# Programming - what is the sense in this
PB666 replied to PB666's topic in Science & Spaceflight
They can be encoded 0~3, N which appears in poorly defined parts has to be encoded as all variants or sequence that contains it must be ignored otherwise the packing drops to 2 per byte. -
What is the most dangerous chemical that you know about
PB666 replied to Ethanadams's topic in Science & Spaceflight
Well its almost i possible to keep the fissile products out of the water so if you coinicidentally gulped the water you could get a nasty amount of Sr. I would be willing to bet the water is saturated with strontium carbonate, unless they dose the water with CaOH2. Which would drive dissolved divalent cations to the metal and walls of the unit. -
There are nearly hydrogen stars in our galaxy and if you check the link http://www.scientificamerican.com/ar...hubble-photos/ this appears to be what they are referring to.
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Chernobyl exclusion zone, better than a wildlife refuge
PB666 replied to PB666's topic in Science & Spaceflight
DNA damage and repair adapt quickly, the enzymes can increase 10 fold immediately when stressed, in addition the radiation response can can evolve. Most of the radiation risk is actually in the dirt not in the plants, so that unless they consume the dirt they can survive. Wolves reacted very positively, much older females reproduced, but they produced more offspring and a higher percentage died, the end result was a more robust population. In addition by producing more offspring the chance a positive selective defense against radiation occurs, therefore protecting future offspring even more. Herbivores that graze high off the ground or water plants might be immune to ground based isotopes, other herbivores like sheep and goats would be more susceptible to radiation damage. The biggest hazard is the ingestion hazard, as the heavy metals accumulate and increase the dosage rate many fold. They also accumulate up the food chain. As a consequence wolves and other predators might be targeting certain prey species and avoiding others. -
C, C++, C# Programming - what is the sense in this
PB666 replied to PB666's topic in Science & Spaceflight
No, its a way of encoding a search and find string with as few bytes as possible, also can be used for direct addressing in shorter searches. A T G and C are letters they would require a full byte, so they would need to be encrypted and then packed. A, C, G, T are ASCII decimal codes 65, 67, 71, 85? and a byte is composed of 2^8 possibilities and this leaves a maximum for a split of 2^4 or 16, each of these exceed 16. it can be accomplished by MOV AL, m1 MOV CL, 2 SHL AL, CL ADD AL, m2 SHL AL, CL ADD AL, m3 SHL AL, CL ADD AL, m4 MOV [Output], AL -
C, C++, C# Programming - what is the sense in this
PB666 replied to PB666's topic in Science & Spaceflight
Yeah Link, the linux stuff is pretty well packaged to go along with C. Can't I do that with VB also, anyway aside from the point. So if I don't want to pay the cost of transferring an array variable to an variable before the transfer I need to have 4 different variables IOW don't specify an array variable until all the assembly math is complete and ready to package. Yeah, I will have to read up on the link in and outs later this PM. -
Falcon and an Isreali team are going to the moon.
PB666 replied to PB666's topic in Science & Spaceflight
Can't, its already a common practice, I've already mentioned it several times with my Super-TN Rocket that can hop four times before refueling. Hoppy birthday to you, hoppy .. . . . common things eventually can't enforce patents. -
C, C++, C# Programming - what is the sense in this
PB666 replied to PB666's topic in Science & Spaceflight
Thanks, as long as assembly is specific to the processor the sky is the limit? -
http://www.bbc.com/news/science-environment-34462323 Hopping lander? Oh well so much for rovers.
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SG1, done, we've moved on....so sorry Mr.alien dude, but you sould have been reading FB and twiiter feeds from Donald Trump... Next alien.
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Can you solve the prisoner hat riddle?
PB666 replied to RainDreamer's topic in Science & Spaceflight
you have to hope he is a short village idiot. -
C, C++, C# Programming - what is the sense in this
PB666 replied to PB666's topic in Science & Spaceflight
So here is the issue. I want to pack 4 pieces of information into a byte. (byte = 2^8 possibilities, or 4^4). a 64 bit register is 8 bytes which means that i can pack 32 pieces of information into a register. So i have an assembly language routine that does this and a few other things, is it poosible to integrate any assembly language routine into C++? -
Can you solve the prisoner hat riddle?
PB666 replied to RainDreamer's topic in Science & Spaceflight
we're doomed! -
http://www.sci-news.com/biology/science-wildlife-chernobyl-exclusion-zone-03308.html There have been a number of news articles about this the kast few days here is one. Basically predators are doing better. The reason here is not because of the radiation, but because of the emmense size of the refuge you can have more complex ecosystems.
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http://www.caltech.edu/news/topolariton-new-half-matter-half-light-particle-48222
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if those are your criteria, its better to build on phobos. Very low gravity, less of a gravity well, no life to worry about, and no atmosphere. - - - Updated - - - Back to Mars (not) terraforming thread. Mars is not an escape pod. - - - Updated - - - MAD? Mothers against drunks? - - - Updated - - - Already Done...........now its the zombie apocolypse....tinder.......reddit - - - Updated - - - Unless some tactile advertisement laden additive [anti] social networking platform we will ignore it. How did we go from helpless martian bacteria to autocratic utopian space invaders?
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your funny, dude. Like what has Mars got that is worth the dV?