The US actually sank three of these subs to keep them out of Soviet hands.
Only four where ever started, one was bombed in the ship yard and abandoned before it was finished and the other three where scuttled by US forces in various locations to keep the Soviet's from inspecting them. The end of WW2 was an interesting time to say the least.
Sure, if you want to be *sure* you can make sure to have 30 feet for interconnects. Might be overkill, but hey. Most offices should not have a problem with staying well under ~300 feet if you plan for it and put your wiring closets 150 feet apart. But hey...
True, but you only really need to protect the Engine Management computer which in all the cars I own is under the hood to keep the engine running. Running from the cops really just involves keeping the engine running and the drive train in gear. All you need to do is filter everything at the firewall and close up the Faraday cage of the engine compartment. If you radio won't play the sound track for the dukes of hazard is really of no importance when running from the cops.
Ahhh Yes.. The same argument made for ESD. Are you wearing a wrist strap when you rummage around inside your desktop?
Look, I won't argue too strongly that your theory isn't possible, only that it's not likely. Upsetting a processor is not generally going to cause it permanent damage. It's easy to get a processor off in the weeds though disrupting an address line or data line in such a way that the system just doesn't function as desired because the programs execution got disrupted because a bit or two got corrupted by injected noise. Assembly programs (actually all of them) can get off in the weeds pretty quick if you let me change a bit or two on the address lines or data being fetched. There is nothing wrong with the processor or anything else, except that it's off happily fetching it's next instruction from the wrong place. The execution was "upset" by the induced noise, but nothing need be damaged, even slightly to make it happen. You just need to induce some small signal at the right place and time and a 1 becomes a 0 or a 0 becomes a 1. Such signals can be well within the designed capacity for all the components involved at the card level.
Depends on the frequency spectrum being used and the duty cycle, but you make a fair point. MRI machines use really strong magnetic fields. They are pretty safe things for human flesh because the frequency and duty cycles used does not heat up things that much. Microwave ovens and classical "radar" frequencies can and do present a danger though heating.
Personally, I'd be more worried about the nut aiming and firing the device getting some kind of dangerous exposure... But I suppose we can deal with that other ways.
EMP protection is just EMI shielding for really high energy pulses with very fast rise times and long durations. So it is generally done in two stages. First is to filter out the high frequency energy with enough parallel capacitance to shunt it to ground, series inductance to slow the rise time followed by a means of dumping the voltage spikes to ground though an MOV. The second thing you do is avoid coupling of the EMP by providing a Faraday cage (shielding and metal boxes) or using non-conductive wiring (i.e. optical cables for data communication).
In the end it is the same techniques used for EMI resistance, just tailored for the typical EMP pulse.
Well, if getting them to not shoot at you is the goal, it's easy to accomplish. When you see the flashing lights, pull over and stop as soon as safely possible, turn it off and stay seated. You can earn extra points for turning on the lights inside the car at night and keeping your hands on the wheel where they are visible unless you tell them what you are doing. (Sir, my license is in my wallet, may I reach for it? Sir, my registration is in the glove box, may I retrieve it? etc) Being respectful can only help you reach your goal of not being shot at. Plus it might get you a warning instead of a ticket if the cop feels more comfortable with you.
Knowing a number of cops, I can assure you that they really *don't* want to shoot anybody. It's a total pain when you discharge your weapon. Mountains of paperwork, reports, interviews and desk duty are yours even if you don't hit anything. So if you don't make yourself into a threat and don't get the cop upset, you are pretty much not going to get shot at.
Which one? Cessna 150 might just disrupt the radios if you get close enough but nothing else. Everything you need to keep flying will continue to work even if you are sitting in the thing with your device.
Air Bus 380 with the fly by wire systems? I'm betting it will keep flying if you are outside it given the thing is basically a metal tube around all the cabling. Now if you want to test from the INSIDE of the 380, let me know so I can be sure to watch. I still don't expect much, but there *might* be an issue that way and I'd have the video camera rolling just on the outside chance I'd have some interesting footage to sell.
Even in TFS, this device doesn't target cars specifically, it zapped all of the electronics *in* the car, too.
I think this would merely disrupt. I believe a full on EMP would actually destroy the electronics.
Not so, based on fairly recent testing. Even a moderately strong EMP would not cause any lasting damage to most cars. Where the testing showed that "upset" was likely within quite a distance from an EMP event, actual damage was pretty rare. Most cars/trucks where not noticeably affected and when they did stop running the "fix" was to cycle the power.
So, I'm guessing that for a nuclear device to damage your car, you are going to have to be close enough to suffer blast damage or with the zone where radiation will ruin your day long before you can worry about if your car is running or not.
Now...the quick thing to do...is come up with a kit and process to make your car resistant to RF pulses.
Any ideas how to best do this?
Should be fairly easy for the energy levels involved here..
Shielded wiring harnesses in the engine compartment, generally around the low voltage components of the engine control module and a little bit of filtering on the power lines. Concentrate on where things come though the firewall because the engine compartment is usually a pretty good Faraday cage anyway.
Heck, you might just get away with putting some clamp on chokes on the few wires between the instrument cluster and the EMC and a small capacitor on the power supply near where they go though the firewall.
The "low voltage" and "power" wires must be kept separate from each other by code. The mufti-channel raceway has separate compartments which could meet code by keeping wiring separated. But, I would strongly suggest you consult somebody who knows exactly what is and isn't allowed in the jurisdiction in question. Where there generally is consistency in the electrical and building codes, there can be exceptions.
CAT-5 works just fine for 1000BASE-T (Gigabit over copper) for runs under 100 Meters. I suppose you could spec out CAT-6 if you wanted, but I don't see where there is any benefit in the short term. Most desktop computers only run at gigabit which runs over CAT-5 and few places can afford the switching infrastructure to carry more than that to all their drops. CAT-6 punch down blocks, outlets, patch cables and wire is much more expensive than CAT-5. It's just not worth it to go with anything better than CAT-5 in an office situation. Server rooms are a different story.
Remember that I specified that you make sure not to fill up your wiring paths but leave it half empty. This way, if you really needed 10 Gig someplace, you can pull a CAT-6 or optical run to where you need it, but not incur the added expense of putting in stuff you don't need.
I'd also add that beyond the HVAC system there will need to be power outlets everywhere to power all this computing equipment. Power outlets require wiring too. You cannot run power and network in the same conduit by code, but you certainly can use something that looks the same as what they where planning to use for power....
You mean they didn't think of power? It's time to abandon this job if they didn't have a plan for power and the budget to pay for it because you work for idiots.
How are they going to power all this equipment? Obviously they are going to have to put in power drops everywhere to power up all those handy devices, cell phone chargers, computers, laptops and printers, so just do the same thing for your network they are planning to do for the power.
You want to plan for at least one network drop for *every* power outlet they put in, plus put in two everyplace you currently plan to put desks. The two (network and power) do not go in the same conduit or cable ways by code, but I'd suggest you simply use the SAME thing you use for power, for network wires. Just dump all the network wires into a closet (hopefully separate from the breaker box) and terminate them into patch bays there.
DON'T: Try the WiFi thing for more than a small handful of devices. If you have to start using your toes to count the devices only an access point, it's going to start struggling with keeping up and I'm counting smart phones and laptops here. If you start doing any serious data transfers you can swamp a WiFi connection with ONE device.
DON'T: Put in network wiring that is not easily replaced. Where it is not likely you will outgrow Cat-5, technology may advance in ways where you would like to have other kinds of wiring in the future. Make sure to leave space in conduit to allow pulling more drops, or changing cabling types (I suggest not more than half full).
Personally, I'd go with the "steam punk" look in your case. This uses very industrial looking stuff, iron sheets, rivets and such. I'm guessing you could find some wrought iron company to make some cool looking cable ways or trays that would be the steam punk style. Then you can choose to go with wiring colors that are either bold or muted for your network infrastructure. If you want to emphasize your "We are technology!" image, go with bold colored Cat-5 and make sure it shows using open cable trays. Or if you want to look established, go with totally covered wire-ways and muted colors.
Of course, this isn't cheap... But if the primary factor is "cheap", buy a couple of rolls of Velcro and duct tape...
If it's a small office, you can use Ethernet over power lines. I have not used it before, but it seems to be what you are looking for.
That being said, it's difficult to give up the 1000 Mb connections from modern ethernet cables, along with POE for phones, etc. The designer by not putting ethernet cables in place did your business a disservice. A secure business requires secure ethernet.
Ethernet over power lines? Yikes, that's about as bad as WiFi for security and it will be SLOW, SLOW, SLOW if you use a lot of devices in a small space...
The ONLY solution that is workable here is to plan to wire up everything that doesn't move. Everyplace you put a power plug, plan for a network drop next to it with one or more ports.
Reading the summary, implies that people picked Blue because it was in the company logo. I wonder if the COMPANY picked blue because it's likely a color many people like, and therefore people use it in their passwords. As in "correlation is not causation".
Or you're telling me that Facebook just came up with blue because they had "intel" or "IBM" logos in front of them?
I'm thinking Blue Screen of Death is the reason.. Every body was used to seeing that until Red Hat came along.....
I know this will probably cause a host of issues that I'm not thinking here, but the (to me) most obvious solution would be to pair this with a de-salinization plant.
Well if the process requires fresh water, why would you have a desalinization plant? Wouldn't it be easier to just treat the fresh water?
But the logical problem now becomes yours, not mine. If you wish to assert there is no creator, then I ask you to present your proof using evidence.
I have no proof, nor does anyone else
Ah, you make my point then. You had better at least accept the possibility of a creator as a logical view, even if you do not hold it, or face the charge of being biased without having a logical way to prove your view. Remember, my point is that trying to dismiss creation science on the basis that there is obviously no creator is foolish and stupid both logically and historically.
Oh, and on your "trickster god" theory straw man. I would contend that what I would term "apparent age" is not inconsistent with the Biblical concept of the creator shared by the vast majority of the world's population (being generally the same for the three major religious views which hold to the creation account in Genesis, namely Islam, Judaism and Christianity.) And your assertion that this creator is *not* involved in the world today is yet another unprovable position of yours.
So we arrive at the impasse. I'm asserting that you logically must allow for a creator as being possible, yet you wish to assert there is no creator. I think that leaves you biased and unscientific by definition. So Be it...
I never said Evolution doesn't have evidence. You are setting up a straw man here. Further your little thought experiments don't help your case because they are not representative of what most folks mean by a "creator". Again, straw men of *your* design which don't really help your point here.
Creation Science has evidence, usually it's the same evidence you use, it's just that the theory differs in interpretation and perhaps holds differing views of the importance of said evidence. Evolution has its issues with the evidence, Creationists have issues too. But it is the wrestling with the questions, the evidence and the interpretations of it all that the scientific method is about here, and understanding one's base assumptions is a key factor for the honest scientists.
You wish to dismiss this whole thing with the presupposition that a creator doesn't exist. A claim you cannot prove, neither logically nor scientifically. Yet you will set up straw men to knock down to justify your view? I think you are biased, which is to your detriment.
So, what's your *real* issue with this creator idea? I'm guessing it's more about your philosophy than science if you honestly distill it down. Which is really my point.
Slashdot Mirror
IQ below room temperature.
Not sure what range you are talking about? Could be really good, could be not so good, could be really bad.
70 degrees Fahrenheit
21 degrees Celsius
294 degrees Kelvin
Proportionality is important, too. His punishment was wildly out of proportion to the offense.
Nope.. 2 years was for the crime committed. ~200K was for expenses related to the damage caused by his actions..
Given that the company is extremely unlikely to collect their money, seems fair to me. ,
The US actually sank three of these subs to keep them out of Soviet hands.
Only four where ever started, one was bombed in the ship yard and abandoned before it was finished and the other three where scuttled by US forces in various locations to keep the Soviet's from inspecting them. The end of WW2 was an interesting time to say the least.
http://en.wikipedia.org/wiki/I-400-class_submarine
Sure, if you want to be *sure* you can make sure to have 30 feet for interconnects. Might be overkill, but hey. Most offices should not have a problem with staying well under ~300 feet if you plan for it and put your wiring closets 150 feet apart. But hey...
True, but you only really need to protect the Engine Management computer which in all the cars I own is under the hood to keep the engine running. Running from the cops really just involves keeping the engine running and the drive train in gear. All you need to do is filter everything at the firewall and close up the Faraday cage of the engine compartment. If you radio won't play the sound track for the dukes of hazard is really of no importance when running from the cops.
In which case this guy works for idiots who forgot to plan for network cables to go with all the power cables and his goose is cooked anyway.
Ahhh Yes.. The same argument made for ESD. Are you wearing a wrist strap when you rummage around inside your desktop?
Look, I won't argue too strongly that your theory isn't possible, only that it's not likely. Upsetting a processor is not generally going to cause it permanent damage. It's easy to get a processor off in the weeds though disrupting an address line or data line in such a way that the system just doesn't function as desired because the programs execution got disrupted because a bit or two got corrupted by injected noise. Assembly programs (actually all of them) can get off in the weeds pretty quick if you let me change a bit or two on the address lines or data being fetched. There is nothing wrong with the processor or anything else, except that it's off happily fetching it's next instruction from the wrong place. The execution was "upset" by the induced noise, but nothing need be damaged, even slightly to make it happen. You just need to induce some small signal at the right place and time and a 1 becomes a 0 or a 0 becomes a 1. Such signals can be well within the designed capacity for all the components involved at the card level.
Depends on the frequency spectrum being used and the duty cycle, but you make a fair point. MRI machines use really strong magnetic fields. They are pretty safe things for human flesh because the frequency and duty cycles used does not heat up things that much. Microwave ovens and classical "radar" frequencies can and do present a danger though heating.
Personally, I'd be more worried about the nut aiming and firing the device getting some kind of dangerous exposure... But I suppose we can deal with that other ways.
EMP protection is just EMI shielding for really high energy pulses with very fast rise times and long durations. So it is generally done in two stages. First is to filter out the high frequency energy with enough parallel capacitance to shunt it to ground, series inductance to slow the rise time followed by a means of dumping the voltage spikes to ground though an MOV. The second thing you do is avoid coupling of the EMP by providing a Faraday cage (shielding and metal boxes) or using non-conductive wiring (i.e. optical cables for data communication).
In the end it is the same techniques used for EMI resistance, just tailored for the typical EMP pulse.
Well, if getting them to not shoot at you is the goal, it's easy to accomplish. When you see the flashing lights, pull over and stop as soon as safely possible, turn it off and stay seated. You can earn extra points for turning on the lights inside the car at night and keeping your hands on the wheel where they are visible unless you tell them what you are doing. (Sir, my license is in my wallet, may I reach for it? Sir, my registration is in the glove box, may I retrieve it? etc) Being respectful can only help you reach your goal of not being shot at. Plus it might get you a warning instead of a ticket if the cop feels more comfortable with you.
Knowing a number of cops, I can assure you that they really *don't* want to shoot anybody. It's a total pain when you discharge your weapon. Mountains of paperwork, reports, interviews and desk duty are yours even if you don't hit anything. So if you don't make yourself into a threat and don't get the cop upset, you are pretty much not going to get shot at.
Third thought: Assuming the police have the device, they are likely to deactivate themselves being closer to the transmitter...
So was she stealing cars after that?
If nothing else, they will be distracted for a few seconds while they read the text and you can do the PIT move on them... Your plan has merit..
Which one? Cessna 150 might just disrupt the radios if you get close enough but nothing else. Everything you need to keep flying will continue to work even if you are sitting in the thing with your device.
Air Bus 380 with the fly by wire systems? I'm betting it will keep flying if you are outside it given the thing is basically a metal tube around all the cabling. Now if you want to test from the INSIDE of the 380, let me know so I can be sure to watch. I still don't expect much, but there *might* be an issue that way and I'd have the video camera rolling just on the outside chance I'd have some interesting footage to sell.
I think this would merely disrupt. I believe a full on EMP would actually destroy the electronics.
Not so, based on fairly recent testing. Even a moderately strong EMP would not cause any lasting damage to most cars. Where the testing showed that "upset" was likely within quite a distance from an EMP event, actual damage was pretty rare. Most cars/trucks where not noticeably affected and when they did stop running the "fix" was to cycle the power.
So, I'm guessing that for a nuclear device to damage your car, you are going to have to be close enough to suffer blast damage or with the zone where radiation will ruin your day long before you can worry about if your car is running or not.
http://www.survivalblog.com/2010/08/real_world_emp_effects_on_moto.html
Now...the quick thing to do...is come up with a kit and process to make your car resistant to RF pulses.
Any ideas how to best do this?
Should be fairly easy for the energy levels involved here..
Shielded wiring harnesses in the engine compartment, generally around the low voltage components of the engine control module and a little bit of filtering on the power lines. Concentrate on where things come though the firewall because the engine compartment is usually a pretty good Faraday cage anyway.
Heck, you might just get away with putting some clamp on chokes on the few wires between the instrument cluster and the EMC and a small capacitor on the power supply near where they go though the firewall.
The "low voltage" and "power" wires must be kept separate from each other by code. The mufti-channel raceway has separate compartments which could meet code by keeping wiring separated. But, I would strongly suggest you consult somebody who knows exactly what is and isn't allowed in the jurisdiction in question. Where there generally is consistency in the electrical and building codes, there can be exceptions.
CAT-5 works just fine for 1000BASE-T (Gigabit over copper) for runs under 100 Meters. I suppose you could spec out CAT-6 if you wanted, but I don't see where there is any benefit in the short term. Most desktop computers only run at gigabit which runs over CAT-5 and few places can afford the switching infrastructure to carry more than that to all their drops. CAT-6 punch down blocks, outlets, patch cables and wire is much more expensive than CAT-5. It's just not worth it to go with anything better than CAT-5 in an office situation. Server rooms are a different story.
Remember that I specified that you make sure not to fill up your wiring paths but leave it half empty. This way, if you really needed 10 Gig someplace, you can pull a CAT-6 or optical run to where you need it, but not incur the added expense of putting in stuff you don't need.
I'd also add that beyond the HVAC system there will need to be power outlets everywhere to power all this computing equipment. Power outlets require wiring too. You cannot run power and network in the same conduit by code, but you certainly can use something that looks the same as what they where planning to use for power....
You mean they didn't think of power? It's time to abandon this job if they didn't have a plan for power and the budget to pay for it because you work for idiots.
How are they going to power all this equipment? Obviously they are going to have to put in power drops everywhere to power up all those handy devices, cell phone chargers, computers, laptops and printers, so just do the same thing for your network they are planning to do for the power.
You want to plan for at least one network drop for *every* power outlet they put in, plus put in two everyplace you currently plan to put desks. The two (network and power) do not go in the same conduit or cable ways by code, but I'd suggest you simply use the SAME thing you use for power, for network wires. Just dump all the network wires into a closet (hopefully separate from the breaker box) and terminate them into patch bays there.
DON'T: Try the WiFi thing for more than a small handful of devices. If you have to start using your toes to count the devices only an access point, it's going to start struggling with keeping up and I'm counting smart phones and laptops here. If you start doing any serious data transfers you can swamp a WiFi connection with ONE device.
DON'T: Put in network wiring that is not easily replaced. Where it is not likely you will outgrow Cat-5, technology may advance in ways where you would like to have other kinds of wiring in the future. Make sure to leave space in conduit to allow pulling more drops, or changing cabling types (I suggest not more than half full).
Personally, I'd go with the "steam punk" look in your case. This uses very industrial looking stuff, iron sheets, rivets and such. I'm guessing you could find some wrought iron company to make some cool looking cable ways or trays that would be the steam punk style. Then you can choose to go with wiring colors that are either bold or muted for your network infrastructure. If you want to emphasize your "We are technology!" image, go with bold colored Cat-5 and make sure it shows using open cable trays. Or if you want to look established, go with totally covered wire-ways and muted colors.
Of course, this isn't cheap... But if the primary factor is "cheap", buy a couple of rolls of Velcro and duct tape...
If it's a small office, you can use Ethernet over power lines. I have not used it before, but it seems to be what you are looking for.
That being said, it's difficult to give up the 1000 Mb connections from modern ethernet cables, along with POE for phones, etc. The designer by not putting ethernet cables in place did your business a disservice. A secure business requires secure ethernet.
Ethernet over power lines? Yikes, that's about as bad as WiFi for security and it will be SLOW, SLOW, SLOW if you use a lot of devices in a small space...
The ONLY solution that is workable here is to plan to wire up everything that doesn't move. Everyplace you put a power plug, plan for a network drop next to it with one or more ports.
Reading the summary, implies that people picked Blue because it was in the company logo. I wonder if the COMPANY picked blue because it's likely a color many people like, and therefore people use it in their passwords. As in "correlation is not causation".
Or you're telling me that Facebook just came up with blue because they had "intel" or "IBM" logos in front of them?
I'm thinking Blue Screen of Death is the reason.. Every body was used to seeing that until Red Hat came along.....
I know this will probably cause a host of issues that I'm not thinking here, but the (to me) most obvious solution would be to pair this with a de-salinization plant.
Well if the process requires fresh water, why would you have a desalinization plant? Wouldn't it be easier to just treat the fresh water?
But the logical problem now becomes yours, not mine. If you wish to assert there is no creator, then I ask you to present your proof using evidence.
I have no proof, nor does anyone else
Ah, you make my point then. You had better at least accept the possibility of a creator as a logical view, even if you do not hold it, or face the charge of being biased without having a logical way to prove your view. Remember, my point is that trying to dismiss creation science on the basis that there is obviously no creator is foolish and stupid both logically and historically.
Oh, and on your "trickster god" theory straw man. I would contend that what I would term "apparent age" is not inconsistent with the Biblical concept of the creator shared by the vast majority of the world's population (being generally the same for the three major religious views which hold to the creation account in Genesis, namely Islam, Judaism and Christianity.) And your assertion that this creator is *not* involved in the world today is yet another unprovable position of yours.
So we arrive at the impasse. I'm asserting that you logically must allow for a creator as being possible, yet you wish to assert there is no creator. I think that leaves you biased and unscientific by definition. So Be it...
I never said Evolution doesn't have evidence. You are setting up a straw man here. Further your little thought experiments don't help your case because they are not representative of what most folks mean by a "creator". Again, straw men of *your* design which don't really help your point here.
Creation Science has evidence, usually it's the same evidence you use, it's just that the theory differs in interpretation and perhaps holds differing views of the importance of said evidence. Evolution has its issues with the evidence, Creationists have issues too. But it is the wrestling with the questions, the evidence and the interpretations of it all that the scientific method is about here, and understanding one's base assumptions is a key factor for the honest scientists.
You wish to dismiss this whole thing with the presupposition that a creator doesn't exist. A claim you cannot prove, neither logically nor scientifically. Yet you will set up straw men to knock down to justify your view? I think you are biased, which is to your detriment.
So, what's your *real* issue with this creator idea? I'm guessing it's more about your philosophy than science if you honestly distill it down. Which is really my point.