The above poster is of course referring to a prompt criticality event, this was obscured by their gross ignorance of the subject.
Rest assured their opinion is founded on nothing more than hysteria and perhaps the final scenes of HALO. Watch out for that wildcat explosion Master Chief!
Piling all of our waste together will not make it go away faster, this is wrong.
Yes, if you accumulate more radioactive material, the total rate of decay will increase, because you have more material decaying...
The probability of an individual radionuclide undergoing radioactive decay is independent of external influences save interaction with incident sub-atomic particles and the unique case of electron capture.
If you took a piece of granite into a US nuclear facility, it would not be considered waste, much less radioactive waste.
There are equipment and materials with radiation levels lower than your chunk of granite, however because these materials have DETECTABLE concentrations (> DAC/MDA) of program generated nuclides they will not be released to the public.
It is the origin that is important.
Case in Point: A worker at a hypothetical (ahem) nuclear facility receives radiopharmaceutical treatment without informing his superiors. He uses the restroom, somehow spreading urine all around the toilet. Later, another work treads the radioactive urine into a radiologically controlled area where the radio-urine is detected on his boots upon egress. The contamination is traced back to the restroom and the contaminant is identified as a radiopharmaceutical by isotopic analysis. The urine is cleaned up without radiological controls due to the origin of the radionuclide.
http://www.xbox-linux.org/wiki/Getting_Started#8
check www.xbox-linux.org but i believe that in order to use the mechassault bootstrap, you have to have an older xbox. putting such an xbox onto live will stealthily load new firmware onto the xbox, disabling the ability to bootstrap linux through mechassault or through a bootcd...
(why i won't play halo2 online w/my xbox).
installing a modchip w/the cromwell bios is a way around this.
as i understand it the only reprecussion for this is the disabling of linux, i don't think microsoft will take legal action (fair use?).
Modern torpedos detonate at a significant distance from the keel of a surface target, as the initial expansion wave carries a significant portion, but not all of the potential energy the torpedo can generate. By detonating the torpedo at a deeper depth, the explosion can evacuate the water from under the keel, using the ships own weight against its (explosively) weakened structure.
This effect can be seen in most of the SINKEX videos floating around the net.
The ship disintegrating would be from the explosive force, not rising gases.
Thompson states that if the industry does not change, there will be a Columbine to the factor of 10. Does this not sound more ridiculous than Fallujah x2?
It should.
Thompsons statement regarding terrorist training through videogames such as Full-Spectrum Warrior is, I hope, hyperbolic prima facae to most of you. Much, much, more training and planning goes into acts of terrorism than Thompson seems to give them credit for (it's a little bit more than shoot the enemy when you see him pop up on the screen).
Saying that restricting the export of tactical videogames to foreign countries under say, the EAR or ITAR, would obviously not stem the tide of violence in Iraq and around the world just as restricting violence in videogames will not stop these children, who are under severe emotional strain or experiencing deep depression, or even beginining to show signs of a personality disorder, from acting out violently. Columbine was perpetrated by children who had severe social and emotional problems, and who were left alone to create pipe bombs and amass weapons in their basement. This was partly a failure of supervision by the parents and, OC partly beyond their control. Columbine had nothing to do with videogames.
Shame on Mr. Thompson for invoking terrorism as a reason for restricting videogame sales. Don't cheapen their sacrifice, ambulance chaser.
Yes it does. My point is that resistance to corrosion is not your primary concern when making tools. This is a marketing ploy.
This is why many tools are made from tool steel (http://www.engineersedge.com/tool_steel.htm).
You'll notice that some of these are very common knife steels (among custom knifemakers). 304 is not.
Didn't stop the military from using carbon steel for the venerable Ka-bar knife. You can blue carbon steel also.
And let's stop calling it INOX, because it's pretty ovbious they call it that to distract you from the fact that's it's just Stainless Steel.
Let's call it "Wham" instead.
Wham-L will be the low-carbon version more resistant to chromium carbide precipitation at the grain boundaries during prolonged exposure to high-temperatures.
Inox steel huh? Fancy way of saying "Stainless Steel". Which is generally weaker than carbon steel.
Anyways, for $100 no thanks. For $100 I'd rather have my gerber multi-tool, benchmade griptilian, and streamlight nightfighter. All of which i'm sure i'll misplace before they ever break.
You need to draw a line between an improvised RDD and a military RDD. An improvised RDD with say 10 Ci of Co-60 or Cs-137 is going to, as you say, contaminate a small area to tolerable levels of contamination and cause excess cancers in at most 100's of individuals. A military RDD (a Co-59 jacketed increased neutron device) is going to have devastating radiological effects on the area in a ground burst scenario (millions of long-lived Ci's over 100 of square kilometers). Co-60 uptake is more limiting than even radioiodine, which your body actively absorbs and stores in your thyroid.
And as for simple, cleaning up the activity would, in the improvised case make cleaning up a VX-2 attack look like a chlorine spill; and in the military case, be something which is beyond our technical capability.
You sure about infinite torque at 0rpm? Why do power circuits supplying electricity to industrial motors integrate underfrequency and undervoltage breaker trips to de-energize motors lest the load exceed the stall torque of the motor?
What are your credentials? Are you an HP or even an RCT? Your information sounds uninformed to put it politely. What are you basing the mean dosage per x-ray on? An x-ray can range from 10 to over 100 mRem. Commercial flight crews receive a mean penetrating whole-body dose of about 300mRem over the mean civilian background dose(which is also about 300 mRem, 2/3 of that being from radon). If you are in the air 1/10 as frequently as commercial flight crews, and receive 30 of these x-rays per year(assuming a mean penetrating whole body effective dose of 10 mRem), we're talking about:
100 mRem - cosmic rays (background)
200 mRem - radon (background)
30 mRem - portion of flight crew dose
300 mRem - x-ray dosage
0.630 REM
a little over one-tenth the federal limit for penetrating (>5cm to internal organs) dose (5000mrem).
The Federal Limit for skin dosage is 50,000 mrem.
the federal limits are based on limiting excess cancer mortality in the general population to =1%.
in you example of acute versus chronic exposure. i think your timescale is a little... well hyperbolic. What real-life death has been caused by high exposure levels to localized tissue areas from a collimated beam? I await your response. The fuzzines in mortality prediction from radiation exposures exists because of the limited empirical evidence we have on the subject. I think it is absolutely unreasonable to say that if the accumulated dose to a leukemia patients bone was given in a period of 15 seconds, that their life could be in danger. If you have evidence that says otherwise, please provide it. Maybe I am wrong.
A little education in radiation protection goes a long way.
Re:Gamers never know what's good for them
on
A Gamer's Manifesto
·
· Score: 1
The problem I find with this practice is that you progress through the game way too quickly and easily and the plot(if it exists) is revealed far too cheaply, lessening the enjoyment the second(or third?) time through. I think this was the case with deus-ex and half-life 2 (which for the bulk of the beginning you can run through like neo). Maybe it's just me. A great game like hl or dx will have you coming back years later exploring.
sorry, the fact that you responded to my question as to what an inertial pump was with the definition of inertia was confusing. wait... why would you respond to my question as to what an inertial pump is with the definition of inertia? i have textbooks and google also. i too found this well-sampling pump through google, though i was surprised to find that it is a positive displacement ball actuated check valve pump, regardless of the moniker the manufacturer would like to give it. regardless of the gross amount of backleakage that is going to occur because of the integral check valve and plunger, it is a PD pump.
are you attempting to elucidate what an inertial pumping system is? if so, you have failed. why not instead provide an example of an inertial pumping system (outside the context of oceanic fluid flow).
Absolutely. I think we can agree that these equations are a simplistic view of fluid flow in a siphoning system. They do not take into account the effects of friction between the boundary film in the turbulent flow stream and the wall of the pipe. If you need to know more about headloss and the effects of pipe diameter, fluid viscosity, pipe surface roughness, and length of piping, an introductory book on fluid flow is a good place to start. (not intended to be confrontational here, it's just that idk of any good web resources regarding this).
never heard of an inertial pumping system before. does such a thing exist? or is it the lag in water delivery combined with the kinetic energy of the water that you pressurized that develops the illusion. also you are thinking of momentum IIRC?
1) it does matter how far the pipes go down insofar as the additional piping will introduce greater headloss, thus lowering the velocity of the coolant, so there will be some ideal depth beyond which is not efficient or profitable to pump from. (probably just below the thermocline?)
2) the height of the intermediate point does not matter save the extra piping length which will introduce additional headloss into your piping system.
he's talking about suction head. if a pump is drawing suction from a water source which is at atmospheric pressure, the pump can draw the water up no more than about 34 feet before the water boils (cavitation will occur first). no pump can draw an unpressurized water source up more than 34 feet. the water source must be pressurized by gas or a booster pump in order to provide the necessary net positive suction heaed. and you cannot siphon from a lower container to a higher container. try it. this makes no sense. maybe he is using a natural circulation system to draw this water up, but it is not a siphon. and to the poster below, think about what you are saying. yes the water at the bottom of the ocean is at a higher pressure than atmospheric...so if i connect a pipe from the bottom to the surface, i'll have a gusher of water spraying out of the pipe? no, pressure will decrease with fluid height.
my point is that there was a fission product release. equipment failed. the watchteam failed. containment failed. it could have failed catastrophically, and didn't, but the system did not perform as it was designed to, and as the public trusted it would.
i'm for nuclear power, but attempting to allay peoples fear of a nuclear accident by explaining the insignificant contribution safely operated power reactors make to the mean natural dose is specious. (if that is in fact why you cited that factoid).
didn't this thread have something to do with heatsinks?:)
There are no highly combustible substances in the reactor core, and even if there were, U.S. reactors have very strong containment buildings so that if something goes horribly wrong, it will not likely ever escape containment.
How sure are you of this? Have access to a wide variety of core structural design information? No?
As far as strong containment buildings, was there not a fission product release at TMI?
Slashdot Mirror
The above poster is of course referring to a prompt criticality event, this was obscured by their gross ignorance of the subject. Rest assured their opinion is founded on nothing more than hysteria and perhaps the final scenes of HALO. Watch out for that wildcat explosion Master Chief!
Piling all of our waste together will not make it go away faster, this is wrong. Yes, if you accumulate more radioactive material, the total rate of decay will increase, because you have more material decaying... The probability of an individual radionuclide undergoing radioactive decay is independent of external influences save interaction with incident sub-atomic particles and the unique case of electron capture. If you took a piece of granite into a US nuclear facility, it would not be considered waste, much less radioactive waste. There are equipment and materials with radiation levels lower than your chunk of granite, however because these materials have DETECTABLE concentrations (> DAC/MDA) of program generated nuclides they will not be released to the public. It is the origin that is important. Case in Point: A worker at a hypothetical (ahem) nuclear facility receives radiopharmaceutical treatment without informing his superiors. He uses the restroom, somehow spreading urine all around the toilet. Later, another work treads the radioactive urine into a radiologically controlled area where the radio-urine is detected on his boots upon egress. The contamination is traced back to the restroom and the contaminant is identified as a radiopharmaceutical by isotopic analysis. The urine is cleaned up without radiological controls due to the origin of the radionuclide.
Can you still boot linux from dashboard and bootcd after running Live?
http://www.xbox-linux.org/wiki/Getting_Started#8
check www.xbox-linux.org but i believe that in order to use the mechassault bootstrap, you have to have an older xbox.
putting such an xbox onto live will stealthily load new firmware onto the xbox,
disabling the ability to bootstrap linux through mechassault or through a bootcd...
(why i won't play halo2 online w/my xbox).
installing a modchip w/the cromwell bios is a way around this.
as i understand it the only reprecussion for this is the disabling of linux, i don't think microsoft will take legal action (fair use?).
Modern torpedos detonate at a significant distance from the keel of a surface target, as the initial expansion wave carries a significant portion, but not all of the potential energy the torpedo can generate. By detonating the torpedo at a deeper depth, the explosion can evacuate the water from under the keel, using the ships own weight against its (explosively) weakened structure. This effect can be seen in most of the SINKEX videos floating around the net. The ship disintegrating would be from the explosive force, not rising gases.
Think of the additional fatalities that could have been inflicted by skilled bunny-hoppers (and thank god neither had AWP+deagle).
Granted. Let me instead say, "Columbine was in no way caused by violent videogames."
Thompson states that if the industry does not change, there will be a Columbine to the factor of 10. Does this not sound more ridiculous than Fallujah x2?
It should.
Thompsons statement regarding terrorist training through videogames such as Full-Spectrum Warrior is, I hope, hyperbolic prima facae to most of you. Much, much, more training and planning goes into acts of terrorism than Thompson seems to give them credit for (it's a little bit more than shoot the enemy when you see him pop up on the screen).
Saying that restricting the export of tactical videogames to foreign countries under say, the EAR or ITAR, would obviously not stem the tide of violence in Iraq and around the world just as restricting violence in videogames will not stop these children, who are under severe emotional strain or experiencing deep depression, or even beginining to show signs of a personality disorder, from acting out violently. Columbine was perpetrated by children who had severe social and emotional problems, and who were left alone to create pipe bombs and amass weapons in their basement. This was partly a failure of supervision by the parents and, OC partly beyond their control. Columbine had nothing to do with videogames.
Shame on Mr. Thompson for invoking terrorism as a reason for restricting videogame sales.
Don't cheapen their sacrifice, ambulance chaser.
Yes it does. My point is that resistance to corrosion is not your primary concern when making tools. This is a marketing ploy. This is why many tools are made from tool steel (http://www.engineersedge.com/tool_steel.htm). You'll notice that some of these are very common knife steels (among custom knifemakers). 304 is not. Didn't stop the military from using carbon steel for the venerable Ka-bar knife. You can blue carbon steel also. And let's stop calling it INOX, because it's pretty ovbious they call it that to distract you from the fact that's it's just Stainless Steel. Let's call it "Wham" instead. Wham-L will be the low-carbon version more resistant to chromium carbide precipitation at the grain boundaries during prolonged exposure to high-temperatures.
Inox steel huh? Fancy way of saying "Stainless Steel". Which is generally weaker than carbon steel. Anyways, for $100 no thanks. For $100 I'd rather have my gerber multi-tool, benchmade griptilian, and streamlight nightfighter. All of which i'm sure i'll misplace before they ever break.
You need to draw a line between an improvised RDD and a military RDD. An improvised RDD with say 10 Ci of Co-60 or Cs-137 is going to, as you say, contaminate a small area to tolerable levels of contamination and cause excess cancers in at most 100's of individuals. A military RDD (a Co-59 jacketed increased neutron device) is going to have devastating radiological effects on the area in a ground burst scenario (millions of long-lived Ci's over 100 of square kilometers). Co-60 uptake is more limiting than even radioiodine, which your body actively absorbs and stores in your thyroid. And as for simple, cleaning up the activity would, in the improvised case make cleaning up a VX-2 attack look like a chlorine spill; and in the military case, be something which is beyond our technical capability.
You sure about infinite torque at 0rpm? Why do power circuits supplying electricity to industrial motors integrate underfrequency and undervoltage breaker trips to de-energize motors lest the load exceed the stall torque of the motor?
Or compare that to the 245,000 microrems i've gotten at work this year.
What are your credentials? Are you an HP or even an RCT? Your information sounds uninformed to put it politely. What are you basing the mean dosage per x-ray on? An x-ray can range from 10 to over 100 mRem. Commercial flight crews receive a mean penetrating whole-body dose of about 300mRem over the mean civilian background dose(which is also about 300 mRem, 2/3 of that being from radon). If you are in the air 1/10 as frequently as commercial flight crews, and receive 30 of these x-rays per year(assuming a mean penetrating whole body effective dose of 10 mRem), we're talking about: 100 mRem - cosmic rays (background) 200 mRem - radon (background) 30 mRem - portion of flight crew dose 300 mRem - x-ray dosage 0.630 REM a little over one-tenth the federal limit for penetrating (>5cm to internal organs) dose (5000mrem). The Federal Limit for skin dosage is 50,000 mrem. the federal limits are based on limiting excess cancer mortality in the general population to =1%. in you example of acute versus chronic exposure. i think your timescale is a little ... well hyperbolic. What real-life death has been caused by high exposure levels to localized tissue areas from a collimated beam? I await your response. The fuzzines in mortality prediction from radiation exposures exists because of the limited empirical evidence we have on the subject. I think it is absolutely unreasonable to say that if the accumulated dose to a leukemia patients bone was given in a period of 15 seconds, that their life could be in danger. If you have evidence that says otherwise, please provide it. Maybe I am wrong.
A little education in radiation protection goes a long way.
The problem I find with this practice is that you progress through the game way too quickly and easily and the plot(if it exists) is revealed far too cheaply, lessening the enjoyment the second(or third?) time through. I think this was the case with deus-ex and half-life 2 (which for the bulk of the beginning you can run through like neo). Maybe it's just me. A great game like hl or dx will have you coming back years later exploring.
i buy it :)
sorry, the fact that you responded to my question as to what an inertial pump was with the definition of inertia was confusing. wait... why would you respond to my question as to what an inertial pump is with the definition of inertia? i have textbooks and google also. i too found this well-sampling pump through google, though i was surprised to find that it is a positive displacement ball actuated check valve pump, regardless of the moniker the manufacturer would like to give it. regardless of the gross amount of backleakage that is going to occur because of the integral check valve and plunger, it is a PD pump.
are you attempting to elucidate what an inertial pumping system is? if so, you have failed. why not instead provide an example of an inertial pumping system (outside the context of oceanic fluid flow).
Absolutely. I think we can agree that these equations are a simplistic view of fluid flow in a siphoning system. They do not take into account the effects of friction between the boundary film in the turbulent flow stream and the wall of the pipe. If you need to know more about headloss and the effects of pipe diameter, fluid viscosity, pipe surface roughness, and length of piping, an introductory book on fluid flow is a good place to start. (not intended to be confrontational here, it's just that idk of any good web resources regarding this).
never heard of an inertial pumping system before. does such a thing exist? or is it the lag in water delivery combined with the kinetic energy of the water that you pressurized that develops the illusion. also you are thinking of momentum IIRC?
1) it does matter how far the pipes go down insofar as the additional piping will introduce greater headloss, thus lowering the velocity of the coolant, so there will be some ideal depth beyond which is not efficient or profitable to pump from. (probably just below the thermocline?) 2) the height of the intermediate point does not matter save the extra piping length which will introduce additional headloss into your piping system.
he's talking about suction head. if a pump is drawing suction from a water source which is at atmospheric pressure, the pump can draw the water up no more than about 34 feet before the water boils (cavitation will occur first). no pump can draw an unpressurized water source up more than 34 feet. the water source must be pressurized by gas or a booster pump in order to provide the necessary net positive suction heaed. and you cannot siphon from a lower container to a higher container. try it. this makes no sense. maybe he is using a natural circulation system to draw this water up, but it is not a siphon. and to the poster below, think about what you are saying. yes the water at the bottom of the ocean is at a higher pressure than atmospheric...so if i connect a pipe from the bottom to the surface, i'll have a gusher of water spraying out of the pipe? no, pressure will decrease with fluid height.
my point is that there was a fission product release. equipment failed. the watchteam failed. containment failed. it could have failed catastrophically, and didn't, but the system did not perform as it was designed to, and as the public trusted it would. i'm for nuclear power, but attempting to allay peoples fear of a nuclear accident by explaining the insignificant contribution safely operated power reactors make to the mean natural dose is specious. (if that is in fact why you cited that factoid). didn't this thread have something to do with heatsinks? :)
so there was a fission product release is what you're saying. and it's activity that leaked, not radiation.
There are no highly combustible substances in the reactor core, and even if there were, U.S. reactors have very strong containment buildings so that if something goes horribly wrong, it will not likely ever escape containment. How sure are you of this? Have access to a wide variety of core structural design information? No? As far as strong containment buildings, was there not a fission product release at TMI?