At least one design I am familiar with for breeder reactors uses liquid sodium at slightly above atmospheric pressures.
You can't have water in a breeder reactor since it is a moderator. So that leaves HTGCR or lNa for your design. HTGCR are higher temperature and pressure, but mostly because the materials allow for it. The only reason they use the temperature and pressure on current power reactors is because of the proprties of water, and that they are using it for both a coolant and a moderator.
I tried rolling my own. It didn't work to well. I used the NVidia unit that comes with the remote control and the break out box. I never got the sound syncing with the picture, and it was difficult to configure windows in such a way that you could see what was going on on the TV.
Furthermore the long boot time and the large fan noise made it unplesent for the TV environment. I later got a panasonic showstopper (on sale it cost as much as the TiVo, but the service was free.)
0) It's not encrypted???? All satellites I have worked with are encrypted at least on the uplink, including science ones. (even deep space science satellites that require big dishes to talk to it.)
1) It might be more useful to look at this scenario from the electronic warfare point of view, not an internet point of view. However, unlike the internet, you need large, dedicated, expensive equipment to uplink. The equipment is not outside the reach of many hackers, but very very few have them.
You need a license to do the kinds of broadcasts needed to command or jam a satellite. because this is a rare event, your best bet is to handle this through FCC and like organizations. (unlike internet hackers, the FCC will take this seriously.)
2) Yes. Especially if you base your spacecraft on a standard bus. If you do, most of the syntax may already be public. And if I have your telemetry database and a decent history of commands and telemetry, I could figure it out. It isn't easy, and it isn't quick, but it could be done.
Besides, chances are, I don't need to send a good command to destroy your satellite. Just turning on one of the rockets and putting it into an uncontrolled spin will do it. There is a non-zero chance that if I get your spacecraft to accept any command that I could destroy it, even if I have no clue what the command did.
3) Most of the protocols are to use internet protocol to form an intranet between the ground control centers and the spacecrafts. This is mostly floated around as a method of constellation management, because CCSDS is just silly with a solid-state spacecraft. No one in their right mine would make a functioning satellite pintable from any moron on the internet.
Wouldn't examining packets violate local and state wiretapping laws? It would be the same as if the phone company listened in to your conversations, and charged you more if you talked about buisness. (Oh, IANAL, and laws vary from state to state.)
Also, get your county government involved. To a small extent, cable companies exist in a county at the sufferance of the local government. Local governments like telecommuting becuase they hope it will alleviate trafic problems. Let the local government know that the cable company is playing games with them.
And a security guard can identify an anthrax sample how?
The searches aren't designed to find such things. The seaches are designed to offer the illusion of security, so the the boss of NIH can say to his boss "I done real good, massah."
It would take very long, very invasive, and very personal searches to top anything dangerous from getting out. But the vast majority of NIH deals with other things. It is, after all, a fully functional hospital.
W
Re:Did just this thing for 3 years
on
Dorm Storm?
·
· Score: 1
I am roughly the same age as you. I went to college at UMCP 89-93. When I left, Ethernet was starting to appear in one or two floors. by 95 it was everywhere.
When I was an undergrad the only way people like me could get to the real internet was through the university. Now that is no longer the case, but at the time, the university felt a bit of responsibility to provide this service.
Ethernet has also made college dorms a lot more attractive. In my day they had closed down one of the high-rise dorms because of lack of interest. Ethernet was a perk that got people back into the dorms, and stayed there for years.
It is a service that is requested, is cheap for the college to provide (and they can bill the students for the cost), and is now expected. Yes, it is not strictly necessary. Neither was linen service 40 years ago. But it is now expected, and difficult for a university to attract top quality students without the expected perks.
The courts are only protecting your right to post anonymously when you don't post anything illegal. A few courts have decided that they will not be a tool for the corporations to stifle criticism. The courts will subpoena your ISP, your chat room, and your ass if you post something that the prosecution or plaintiff can clearly show is illegal speech. (Hint: How to break HDCP encryption is currently potentially illegal speech.)
Ignore the "Chess Isn't a Sport" arguements. That does not matter to the IOC. What matters is that chess is not TV friendly. The IOC cares more about ratings than anything else.
posted by an irrate fencer, a sport that is in danger of being cut because we aren't "TV Friendly".
I think this is another case of/. helping out something they think is neat. The DB sucks because no-one has entered in information. No-one has entered in information because no-one has heard of it. No-one has heard of it because the DB sucks.
/. does a story about it, and maybe enough people will contribute to make it cool.
People may think of hanford, but they shouldn't. There is a big difference between civilian power plants (under the NRC) and military plants (under DOE).
In short, the DOE ignored all safty, enviornmental, and disclosure rules. It isn't fair to compare the two. (It would be like comparing RMS and Bill Gates because they both work in software)
And no, I don't agree with you that we should dump all of that money into fusion power research. Yes, we should research fusion power, but it is one of many worthy research efforts.
If you could make existing nuclear power safer and cleaner, would it be ok? In my mind it is already ok. In other people's mind it will never be ok. But if you are willing to use and expand existing nuclear technology you can answer all of our countries electrical needs for a long time to come.
I am not the AC who posted here. I could have just moderated you as the troll you are, but instead I will do your homework for you, and provide you with a little bit of what you want.
Sure all of these sites are opinionated and maybe even slightly propogandish, but they all have links to court cases, documents and accounts. And these are just the first three non-scientology sites found by a quick search on Google. The AC just didn't want to have to do your homework for you.
What the hell is your major? Buisness administration? Information Systems? How to be a secratary? The courses your described are electives, not part of any serious CS program.
Even the freshmen level CS classes that I took (I was a physics major) were far more advanced than that.
I agree with you that low quality plutonium will make bombs less efficent and "dirtier". But to the best of my knowledge it is not known how badly the device will "fizzle". Even if you get a 15kT yield out of a device that normally would get you 150kT, you would still have a 15kT device. This may be what happened with the Pakistani devices.
There may have been studies done on this, but I suspect that they would have been classified.
Also, the Pu isotope spectrum of fuel is dependent up on the time spent in the reactor. Most US reactors are very poor for making weapons, as the reactor has to be disassembled each time you refuel. However a canadian CANDU reactor would probably be better for weapons manufacturing because it allows for on-line refueling. You can pull those rods out after a mere month if you wanted to, giving you a much more favorable isotope ratio. The other advantage of CANDU reactors is they use unenriched fuel. (but they require Deuterium, which, believe it or not, can be chemically seperated.)
The problem of uranium purification is a difficult one, and it would be nearly impossible to surreptitiously acquire enough reactor-grade uranium to construct a weapon without the world's intelligence agencies being clued in to the fact, mail-order uranium notwithstanding.
Normally I would agree with you, but I would like to offer a counter example: James Acord. He first started gathering uranium from old fiesta-ware plates (for a few years the oarnge plates were colored with uranium). He broke up the plates to concentrate the uranium. Not enough to do anything with, but enough to alarm some people.
He then managed to score a few tonns of uranium blankets that were to be used in a german fast breeder reator. The reactor never went online, and so Siemans had a few tonns left over. They gave it to James Acord for an art project. I don't think the art project was ever built, and I don't know where the uranium is today. Mr Acord has (had?) an NRC license for the material, so in a sense it is under control.
Comcast, being a cable provider, usually operates in accordance with local, county, city, or municipality governments. They have a licensed monopoly from the local government. Comcast MAY have presented @Home as a service in many ways, including offering an easy way for consumers to telecomute. This is of interest to the government because telecomuting appears to be a cheap way to lighten trafic loads.
So what I am saying is that you could try to contact your local government. They would take a deep interest in this sort of thing. Since comcasts billing of cable customers has to be approved by the county, the county has leverage over them.
Also, another question is how would they know? The only way to know is by checking the contents of a packet. Doesn't this violate wire-tapping laws in your state?
Out of print books stand a chance of being re-printed. You also might be able to get it through a used book store.
There are only two legit ways someone can obtain old software. One, the company releases it into public domain (ala Ultima 4). Two, the company re-writes the software for modern tastes (possibly upsetting all of the old fans... see 'Archon' as an example.) With a few exceptions, most old programs will not sell unless updated.
Old software is not typically re-sold in "used *"
stores. Furthermore, if old software is not copied and placed on new media, it stands a chance of being lost forever.
I agree with you that it is illegal, bad manners, and quite possibly just plain wrong. But I think that the annalogy doesn't work.
1) Repeat after me: "Lady Luck has no memory." Now write it on the chalk board 1000 times. If I am flipping a fair coin, and I get 4 heads in a row, what is the probability that the next flip will be a head? 50%. Believing anything else will get you into gambler's anonymous.
2) These are not random events. Your spacecraft getting hit by a mico-meteorite en-route is a random event. Your spacecraft digging a hole in the surface of mars because some asshole company decided to do english units is not a random event. NASA knows and is willing to live with the random. What NASA is trying to do is prevent the FUBAR's that throw away very expensive spacecraft.
> Anyway, I think that the problem is people actually getting/using the patch.
There is a very simple, and elegant solution. Write a program that exploits the security flaw that patches the affected system, and then replicates itself. To be carefull it should have a self termination date, and maybe even maintain a list of addresses on a central server that it has been sent to, etc.
Of course there are complications to this, first and most importantly that it is probably illegal. Therefore the above thought is provided for humor and iorny purposes, and not an attempt to encourage anyone to break the law.
I think this is the way to go... Mattel caused the author to unwittingly export a munition by failing to reveal the programs presence on his computer. IANAL, but that sounds like a great lawsuit to me.
There are several ways of dealing with Thermal waste. Getting rid of it via water is one way, and is possibly the cheapest, but there are other ways. Cooling towers (like the ones they have at Three Mile Island) are designed to send the thermal waste into the air, and not the surrounding water.
Another option, if you can get past the NIMBY, is to build your power plant in your city, and to have utility provided hot water. I think they did this in one town in germany
I agree. It is the responsibility of individuals to secure their own machines, and don't contribute to the problem. If your machine is being used in a crime, and actively attacking someone, a counter attack is a valid response.
The problem, I think, is more in IP faking. If you blast a computer that isn't involved, you are, and should be, up shit creek.
Slashdot Mirror
Uh... no.
At least one design I am familiar with for breeder reactors uses liquid sodium at slightly above atmospheric pressures.
You can't have water in a breeder reactor since it is a moderator. So that leaves HTGCR or lNa for your design. HTGCR are higher temperature and pressure, but mostly because the materials allow for it. The only reason they use the temperature and pressure on current power reactors is because of the proprties of water, and that they are using it for both a coolant and a moderator.
W
I tried rolling my own. It didn't work to well. I used the NVidia unit that comes with the remote control and the break out box. I never got the sound syncing with the picture, and it was difficult to configure windows in such a way that you could see what was going on on the TV.
Furthermore the long boot time and the large fan noise made it unplesent for the TV environment. I later got a panasonic showstopper (on sale it cost as much as the TiVo, but the service was free.)
W
0) It's not encrypted???? All satellites I have worked with are encrypted at least on the uplink, including science ones. (even deep space science satellites that require big dishes to talk to it.)
1) It might be more useful to look at this scenario from the electronic warfare point of view, not an internet point of view. However, unlike the internet, you need large, dedicated, expensive equipment to uplink. The equipment is not outside the reach of many hackers, but very very few have them.
You need a license to do the kinds of broadcasts needed to command or jam a satellite. because this is a rare event, your best bet is to handle this through FCC and like organizations. (unlike internet hackers, the FCC will take this seriously.)
2) Yes. Especially if you base your spacecraft on a standard bus. If you do, most of the syntax may already be public. And if I have your telemetry database and a decent history of commands and telemetry, I could figure it out. It isn't easy, and it isn't quick, but it could be done.
Besides, chances are, I don't need to send a good command to destroy your satellite. Just turning on one of the rockets and putting it into an uncontrolled spin will do it. There is a non-zero chance that if I get your spacecraft to accept any command that I could destroy it, even if I have no clue what the command did.
3) Most of the protocols are to use internet protocol to form an intranet between the ground control centers and the spacecrafts. This is mostly floated around as a method of constellation management, because CCSDS is just silly with a solid-state spacecraft. No one in their right mine would make a functioning satellite pintable from any moron on the internet.
W
Wouldn't examining packets violate local and state wiretapping laws? It would be the same as if the phone company listened in to your conversations, and charged you more if you talked about buisness. (Oh, IANAL, and laws vary from state to state.)
Also, get your county government involved. To a small extent, cable companies exist in a county at the sufferance of the local government. Local governments like telecommuting becuase they hope it will alleviate trafic problems. Let the local government know that the cable company is playing games with them.
W
And a security guard can identify an anthrax sample how?
The searches aren't designed to find such things. The seaches are designed to offer the illusion of security, so the the boss of NIH can say to his boss "I done real good, massah."
It would take very long, very invasive, and very personal searches to top anything dangerous from getting out. But the vast majority of NIH deals with other things. It is, after all, a fully functional hospital.
W
I am roughly the same age as you. I went to college at UMCP 89-93. When I left, Ethernet was starting to appear in one or two floors. by 95 it was everywhere.
When I was an undergrad the only way people like me could get to the real internet was through the university. Now that is no longer the case, but at the time, the university felt a bit of responsibility to provide this service.
Ethernet has also made college dorms a lot more attractive. In my day they had closed down one of the high-rise dorms because of lack of interest. Ethernet was a perk that got people back into the dorms, and stayed there for years.
It is a service that is requested, is cheap for the college to provide (and they can bill the students for the cost), and is now expected. Yes, it is not strictly necessary. Neither was linen service 40 years ago. But it is now expected, and difficult for a university to attract top quality students without the expected perks.
W
The courts are only protecting your right to post anonymously when you don't post anything illegal. A few courts have decided that they will not be a tool for the corporations to stifle criticism. The courts will subpoena your ISP, your chat room, and your ass if you post something that the prosecution or plaintiff can clearly show is illegal speech. (Hint: How to break HDCP encryption is currently potentially illegal speech.)
W
Ignore the "Chess Isn't a Sport" arguements. That does not matter to the IOC. What matters is that chess is not TV friendly. The IOC cares more about ratings than anything else.
posted by an irrate fencer, a sport that is in danger of being cut because we aren't "TV Friendly".
W
Sure he does. The magnet sticks to his refrigerator, the resistor doesn't.
Duh.
W
I think this is another case of /. helping out something they think is neat. The DB sucks because no-one has entered in information. No-one has entered in information because no-one has heard of it. No-one has heard of it because the DB sucks.
/. does a story about it, and maybe enough people will contribute to make it cool.
*shrug* Maybe this is good, maybe not.
W
People may think of hanford, but they shouldn't. There is a big difference between civilian power plants (under the NRC) and military plants (under DOE).
In short, the DOE ignored all safty, enviornmental, and disclosure rules. It isn't fair to compare the two. (It would be like comparing RMS and Bill Gates because they both work in software)
And no, I don't agree with you that we should dump all of that money into fusion power research. Yes, we should research fusion power, but it is one of many worthy research efforts.
If you could make existing nuclear power safer and cleaner, would it be ok? In my mind it is already ok. In other people's mind it will never be ok. But if you are willing to use and expand existing nuclear technology you can answer all of our countries electrical needs for a long time to come.
1) it doesn't cover north america.
2) it looks like the recievers have pointing antanae... it doesn't look like this technology would work with an automobile.
Otherwise it looks interesting...
Scientology vs the Net
Scientology's lies
Operation Clambake
Sure all of these sites are opinionated and maybe even slightly propogandish, but they all have links to court cases, documents and accounts. And these are just the first three non-scientology sites found by a quick search on Google. The AC just didn't want to have to do your homework for you.
W
What the hell is your major? Buisness administration? Information Systems? How to be a secratary? The courses your described are electives, not part of any serious CS program.
Even the freshmen level CS classes that I took (I was a physics major) were far more advanced than that.
I agree with you that low quality plutonium will make bombs less efficent and "dirtier". But to the best of my knowledge it is not known how badly the device will "fizzle". Even if you get a 15kT yield out of a device that normally would get you 150kT, you would still have a 15kT device. This may be what happened with the Pakistani devices.
There may have been studies done on this, but I suspect that they would have been classified.
Also, the Pu isotope spectrum of fuel is dependent up on the time spent in the reactor. Most US reactors are very poor for making weapons, as the reactor has to be disassembled each time you refuel. However a canadian CANDU reactor would probably be better for weapons manufacturing because it allows for on-line refueling. You can pull those rods out after a mere month if you wanted to, giving you a much more favorable isotope ratio. The other advantage of CANDU reactors is they use unenriched fuel. (but they require Deuterium, which, believe it or not, can be chemically seperated.)
So again, Blame Canada.
W
Normally I would agree with you, but I would like to offer a counter example: James Acord. He first started gathering uranium from old fiesta-ware plates (for a few years the oarnge plates were colored with uranium). He broke up the plates to concentrate the uranium. Not enough to do anything with, but enough to alarm some people.
He then managed to score a few tonns of uranium blankets that were to be used in a german fast breeder reator. The reactor never went online, and so Siemans had a few tonns left over. They gave it to James Acord for an art project. I don't think the art project was ever built, and I don't know where the uranium is today. Mr Acord has (had?) an NRC license for the material, so in a sense it is under control.
To read more about James Acord, Nuclear artist look at http://www.hanfordnews.com/1999/dec8.html or http://www.artscatalyst.org/htm/eots/n uc.htm
W
Comcast, being a cable provider, usually operates in accordance with local, county, city, or municipality governments. They have a licensed monopoly from the local government. Comcast MAY have presented @Home as a service in many ways, including offering an easy way for consumers to telecomute. This is of interest to the government because telecomuting appears to be a cheap way to lighten trafic loads.
So what I am saying is that you could try to contact your local government. They would take a deep interest in this sort of thing. Since comcasts billing of cable customers has to be approved by the county, the county has leverage over them.
Also, another question is how would they know? The only way to know is by checking the contents of a packet. Doesn't this violate wire-tapping laws in your state?
Oh, IANAL, but just some things to consider.
W
Out of print books stand a chance of being re-printed. You also might be able to get it through a used book store.
There are only two legit ways someone can obtain old software. One, the company releases it into public domain (ala Ultima 4). Two, the company re-writes the software for modern tastes (possibly upsetting all of the old fans... see 'Archon' as an example.) With a few exceptions, most old programs will not sell unless updated.
Old software is not typically re-sold in "used *"
stores. Furthermore, if old software is not copied and placed on new media, it stands a chance of being lost forever.
I agree with you that it is illegal, bad manners, and quite possibly just plain wrong. But I think that the annalogy doesn't work.
1) Repeat after me: "Lady Luck has no memory." Now write it on the chalk board 1000 times. If I am flipping a fair coin, and I get 4 heads in a row, what is the probability that the next flip will be a head? 50%. Believing anything else will get you into gambler's anonymous.
2) These are not random events. Your spacecraft getting hit by a mico-meteorite en-route is a random event. Your spacecraft digging a hole in the surface of mars because some asshole company decided to do english units is not a random event. NASA knows and is willing to live with the random. What NASA is trying to do is prevent the FUBAR's that throw away very expensive spacecraft.
W
> Anyway, I think that the problem is people actually getting/using the patch.
There is a very simple, and elegant solution. Write a program that exploits the security flaw that patches the affected system, and then replicates itself. To be carefull it should have a self termination date, and maybe even maintain a list of addresses on a central server that it has been sent to, etc.
Of course there are complications to this, first and most importantly that it is probably illegal. Therefore the above thought is provided for humor and iorny purposes, and not an attempt to encourage anyone to break the law.
Oh, and IANAL.
W
w
I think this is the way to go... Mattel caused the author to unwittingly export a munition by failing to reveal the programs presence on his computer. IANAL, but that sounds like a great lawsuit to me.
W
There are several ways of dealing with Thermal waste. Getting rid of it via water is one way, and is possibly the cheapest, but there are other ways. Cooling towers (like the ones they have at Three Mile Island) are designed to send the thermal waste into the air, and not the surrounding water.
Another option, if you can get past the NIMBY, is to build your power plant in your city, and to have utility provided hot water. I think they did this in one town in germany
He has writers block dreams of future when book done hopeless optimist
I agree. It is the responsibility of individuals to secure their own machines, and don't contribute to the problem. If your machine is being used in a crime, and actively attacking someone, a counter attack is a valid response.
The problem, I think, is more in IP faking. If you blast a computer that isn't involved, you are, and should be, up shit creek.
W