Because I haven't seen a complete explanation yet.....
The vast, vast majority of the public alert systems in the USA were installed in the 1950's/60's. It's a dumb-simple system that has been hackable since then, too, using the same tools that are available now. The vast majority of the systems are RF based: It's simple carrier frequency that carries a particular pair or frequencies or a particular DTMF pattern that triggers the siren system. For my town, for instance, it's a carrier on 48.90mhz, and a 4-digit DTMF on the carrier, each one about 0.25 second long that tells the siren box what pattern to signal and how long signal it for. There's also a two-tone pair (about 1.4khz and 1.9khz) that signals the siren to stay on until it's signaled to turn off again.
The beauty of the system is its simplicity: it just works. No IoT bullshit, no computers being cranky, no downed wires matter. So long as the police station can broadcast the signal and the sirens have power, the system works. We've even tested it using a hand-held radio and two tuning forks, so in the unlikely event the police station was out of power or otherwise unuseable, we can still set the whole system off. Having a IoT, 256-bit AES 2xROT system would be useless if we're standing in the middle of a shitstorm and need to get the public's attention.
Disclaimer: am a volunteer firefighter and help keep this system running in our town
We had the same policy with the TI calculators. Worked great, until one of the students wrote a "clearing" script that made it appear that the calculator was wiped when, in fact, it was not. Looked just about perfect; none of the teachers caught it.
What caught the whole system was what catches most systems like this: one student scored way, way higher than he had any right to, was questioned about it, and folded about the scam. That ended the use of "bring your own calculator".
"You would have to have new pathways that don't all include college education and you would have to have respect for that job -- not blue collar or white collar, I call it new collar."
So, respect for a person who can get shit done.
The 1890's is calling. That's not a bad thing.
Iowa tests this every summer with their RAGBRAI event. It's interesting what happens.
Picture: 10k to 20k people descending on rurual, towns with a standing population of often less than 5k. What happens is this:
5am: Full 4G signal, roughly as fast as any other day. Voice calls are normal.
6am: Email still sort of loads, forget streaming anything. Voice calls are normal.
6:30am: Voice is getting sketchy.
8am: Forget it. Data is shot, Voice might connect.
8:33am: Voice works again
8:40: Voice is shot again. Data is a joke.
10am: Everything starts working again as people start to leave the town.
Why the little window at 8:33am? As someone else pointed out- people give up and put the phones away. However, when they see that some people are having a conversation, they assume that everything is back to normal, jump back on...and wipe the system out again.
1) Incorrect. You have an "oh shit" plan in place with family friends/daycare/friends parents in that case. If I have to get home NOW and I'm on bicycle, I have co-workers who like me and have a car.
2) Incorrect. 20 miles, each way.
3) Incorrect. Fixed hours and business casual / business formal attire.
4) Incorrect. Bicycle is locked up outside.
My work isn't different from 80% of people on here, and I'm no special superhero. I make bicycle commuting work because I want it to work for me. If I had an 8am meeting with you, you'd have no idea if I rode in that day or not, other than I tend to have a larger cup of coffee on riding days.
Send whatever you like, so long as it's unencrypted, non-commerical, and not obscene. Modern-day, it's a bit tricky to do browsing, as so much uses https, which is traffic that can't pass over amateur radio legally.
Your point is on point, but here's a dirty secret about the original Limp Dick Cure:
"Originally, we were testing sildenafil, the active drug in Viagra, as a cardiovascular drug and for its ability to lower blood pressure,'' Dr. Brian Klee, senior medical director at Pfizer, told French news agency, AFP. "But one thing that was found during those trials is that people didn't want to give the medication back because of the side effect of having erections that were harder, firmer and lasted longer.''"
They didn't set out to create a whole new market. It fell into their laps.
The last steel TdF frames were in 1999/2000. It was the Colnago Tecnos, IIRC. Or at least that's what Colnago liked to claim.
The last time that anyone knows a TdF winner was on a steel frame was Indurain, in 1993/94.
Race-grade carbon-fiber (not fiberglass, but same idea) bicycle frames have integrated seat masts with adjustable height mast caps. So, most of the seat tube is integral to the frame, requriring that the frame be roughly the right size for the rider. The seat cap's height is adjustable to set the last few mm's of height to exactly what the riders preference is. It's a great system, as you get all of the benefit of an integrated seat mast (added strength and reduced weight at the top tube/seat tube/seat stay junction, reduced weight because you don't need a clamping system for the seatpost, reduced weight from not having a seatpost, some vibration reduction from the extra carbon) without the steep penality of having to make an absolutely custom sized frame for each rider.
They are, generally the same bikes that you can get from a high-end bike shop. Occassionally they'll use an in-development carbon for the true pro frames to see how it holds up (Trek did this with the 110(?) OCLV frames before they brought them on the market, IIRC), but otherwise, they're the same.
"Because anyone who's ever put a large pot full of water on the stove (for example for canning) can tell you that it will NOT boil off in half an hour."
One detail that's forgotten: BTU
In short, a fireman can tell you that a hose, with 150ish gallons of water per minute coming from it, flowed into a fully fire-involved room.....you're going to see very little runoff for the first minute. The amount of water converted to steam instantly is way, way more than your pot of water can hold.
Most air in a burning house *at the floor* is below the boiling point of water. You can easily have a thermal gradient of several hundred degrees in a room. 150 degrees on the floor. 500 degrees at chest level, 900+ degrees at the ceiling.
To the original poster: offsite storage. Everything else is a game of mental masturbation.
One of the problems with this idea is that it gives rise to the "superman" complex. Namely, that the wearer would charge into a zero visibility situation and loose situational awareness. When the unit failed/went dead/malfunctioned/leaked/whatever, you were thoroughly screwed, as it was like being plunged into a world of black ink.
I say "when" for unit failure because it really is a matter of when. Electronics exposed to the brutal conditions of firefighting will work....for a while.
It's stable as hell, offers a guaranteed bit rate (albeit not that fast by modern standards), and is available just about anywhere in the USA. Mind you, what's a full T1: One form of it is 24(?) ISDN lines bonded together. I was on a 128k ISDN when I lived with the 'folks, as there was no DSL/Cable/Whatever. I torrented the hell out of that connection. Sure, it took some serious time to pull down a.iso of a movie. But it worked. It *always* worked.
" And if they do then they have their gold plated government funded health care, public union negotiated disability plans and similarly generous pensions to help them cope."
Tell that to the 800,000 firefighters in the USA who are unpaid, non-union, volunteer firefighters.
For the home market, they might not use their new UltraChrome HDR inks, but for the semi-pro and pro markets, they do. We have a 4900 here in the lab; amazing is a fair word to describe the output.
"You're a complete fucking idiot if you think your well regulated militia (which you ignore anyway) armed with assault weapons is any match for the government's military-spec hardware."
" Letting them contract the disease and then tell them why they can't be cured of it, and may die, might have a much larger impact. Sucks that it has to put the rest of us at risk first though."
This.
I've presented on vaccination (well, it was the Pharma industry in general, but vaccines are certainly part of that) when I had anti-vaccination folks in the group. Logic is out. Reason is out. I've had this one tossed at me: "You don't really think they took all of the mercury out of the vaccines, do you? They're just lying about it still being there". Or this gem: "Vaccination never worked. The diseases died out due to better hygiene and medicine". Scientific fact is in trouble when faced with "truth" like that.
So, sadly, it's going to take the undoing of the most significant public health victory in history to re-do what we knew 50 years ago. Legislation, insurance losses, fines...all good ideas. They don't do a damn thing in the face of "Well, I have a friend......"
Slashdot Mirror
The vast, vast majority of the public alert systems in the USA were installed in the 1950's/60's. It's a dumb-simple system that has been hackable since then, too, using the same tools that are available now. The vast majority of the systems are RF based: It's simple carrier frequency that carries a particular pair or frequencies or a particular DTMF pattern that triggers the siren system. For my town, for instance, it's a carrier on 48.90mhz, and a 4-digit DTMF on the carrier, each one about 0.25 second long that tells the siren box what pattern to signal and how long signal it for. There's also a two-tone pair (about 1.4khz and 1.9khz) that signals the siren to stay on until it's signaled to turn off again.
The beauty of the system is its simplicity: it just works. No IoT bullshit, no computers being cranky, no downed wires matter. So long as the police station can broadcast the signal and the sirens have power, the system works. We've even tested it using a hand-held radio and two tuning forks, so in the unlikely event the police station was out of power or otherwise unuseable, we can still set the whole system off. Having a IoT, 256-bit AES 2xROT system would be useless if we're standing in the middle of a shitstorm and need to get the public's attention.
Disclaimer: am a volunteer firefighter and help keep this system running in our town
To add to that, a little WHOIS:
Domain Name: theohiostar.com
Registry Domain ID: 2090314152_DOMAIN_COM-VRSN
Registrar WHOIS Server: WHOIS.ENOM.COM
Registrar URL: WWW.ENOM.COM
Updated Date: 2019-01-01T04:37:07.00Z
Creation Date: 2017-01-15T20:10:00.00Z
Registrar Registration Expiration Date: 2020-01-15T20:10:53.00Z
Registrar: ENOM, INC.
Registrar IANA ID: 48 Domain Status: clienttransferprohibited https://www.icann.org/epp#clie...
Registrant Name: REDACTED FOR PRIVACY
Registrant Organization: REDACTED FOR PRIVACY
Registrant Street: REDACTED FOR PRIVACY
It's the same story for the other two websites. All three are registered though the same registrant.
I realize that's not completely odd, but what news organization has all of their registration information redacted?
We had the same policy with the TI calculators. Worked great, until one of the students wrote a "clearing" script that made it appear that the calculator was wiped when, in fact, it was not. Looked just about perfect; none of the teachers caught it.
What caught the whole system was what catches most systems like this: one student scored way, way higher than he had any right to, was questioned about it, and folded about the scam. That ended the use of "bring your own calculator".
"You would have to have new pathways that don't all include college education and you would have to have respect for that job -- not blue collar or white collar, I call it new collar."
So, respect for a person who can get shit done.
The 1890's is calling. That's not a bad thing.
https://www.youtube.com/watch?...
4:30 into the clip.
You're both right.
"The story here is not that it did not know what an elephant wad"....
If you got hit by an elephant wad, you'd know what it was.
" Another example, we can't seem to find a standalone alarm clock that is loud enough to wake my kids up."
https://www.sonicalert.com/Son...
You don't even need the volume on. The bedshaker alone is more than enough.
Iowa tests this every summer with their RAGBRAI event. It's interesting what happens.
Picture: 10k to 20k people descending on rurual, towns with a standing population of often less than 5k. What happens is this:
5am: Full 4G signal, roughly as fast as any other day. Voice calls are normal.
6am: Email still sort of loads, forget streaming anything. Voice calls are normal.
6:30am: Voice is getting sketchy.
8am: Forget it. Data is shot, Voice might connect.
8:33am: Voice works again
8:40: Voice is shot again. Data is a joke.
10am: Everything starts working again as people start to leave the town.
Why the little window at 8:33am? As someone else pointed out- people give up and put the phones away. However, when they see that some people are having a conversation, they assume that everything is back to normal, jump back on...and wipe the system out again.
C'mon. He drives a Prius.
1) Incorrect. You have an "oh shit" plan in place with family friends/daycare/friends parents in that case. If I have to get home NOW and I'm on bicycle, I have co-workers who like me and have a car.
2) Incorrect. 20 miles, each way.
3) Incorrect. Fixed hours and business casual / business formal attire.
4) Incorrect. Bicycle is locked up outside.
My work isn't different from 80% of people on here, and I'm no special superhero. I make bicycle commuting work because I want it to work for me. If I had an 8am meeting with you, you'd have no idea if I rode in that day or not, other than I tend to have a larger cup of coffee on riding days.
Send whatever you like, so long as it's unencrypted, non-commerical, and not obscene. Modern-day, it's a bit tricky to do browsing, as so much uses https, which is traffic that can't pass over amateur radio legally.
'73's.
"Originally, we were testing sildenafil, the active drug in Viagra, as a cardiovascular drug and for its ability to lower blood pressure,'' Dr. Brian Klee, senior medical director at Pfizer, told French news agency, AFP. "But one thing that was found during those trials is that people didn't want to give the medication back because of the side effect of having erections that were harder, firmer and lasted longer.''"
They didn't set out to create a whole new market. It fell into their laps.
The last steel TdF frames were in 1999/2000. It was the Colnago Tecnos, IIRC. Or at least that's what Colnago liked to claim.
The last time that anyone knows a TdF winner was on a steel frame was Indurain, in 1993/94.
You're both right, mostly.
Race-grade carbon-fiber (not fiberglass, but same idea) bicycle frames have integrated seat masts with adjustable height mast caps. So, most of the seat tube is integral to the frame, requriring that the frame be roughly the right size for the rider. The seat cap's height is adjustable to set the last few mm's of height to exactly what the riders preference is. It's a great system, as you get all of the benefit of an integrated seat mast (added strength and reduced weight at the top tube/seat tube/seat stay junction, reduced weight because you don't need a clamping system for the seatpost, reduced weight from not having a seatpost, some vibration reduction from the extra carbon) without the steep penality of having to make an absolutely custom sized frame for each rider.
They are, generally the same bikes that you can get from a high-end bike shop. Occassionally they'll use an in-development carbon for the true pro frames to see how it holds up (Trek did this with the 110(?) OCLV frames before they brought them on the market, IIRC), but otherwise, they're the same.
The Black Death (plague)
Good list, but.....fact check:
Teva and Novartis were never American companies. Teva has always been Israeli; Novartis has always been Swiss.
"Because anyone who's ever put a large pot full of water on the stove (for example for canning) can tell you that it will NOT boil off in half an hour."
One detail that's forgotten: BTU In short, a fireman can tell you that a hose, with 150ish gallons of water per minute coming from it, flowed into a fully fire-involved room.....you're going to see very little runoff for the first minute. The amount of water converted to steam instantly is way, way more than your pot of water can hold.
Most air in a burning house *at the floor* is below the boiling point of water. You can easily have a thermal gradient of several hundred degrees in a room. 150 degrees on the floor. 500 degrees at chest level, 900+ degrees at the ceiling.
To the original poster: offsite storage. Everything else is a game of mental masturbation.
It's a good idea. It's been tried, though: http://www.flir.com/legacy/vie...
One of the problems with this idea is that it gives rise to the "superman" complex. Namely, that the wearer would charge into a zero visibility situation and loose situational awareness. When the unit failed/went dead/malfunctioned/leaked/whatever, you were thoroughly screwed, as it was like being plunged into a world of black ink.
I say "when" for unit failure because it really is a matter of when. Electronics exposed to the brutal conditions of firefighting will work....for a while.
It's stable as hell, offers a guaranteed bit rate (albeit not that fast by modern standards), and is available just about anywhere in the USA. Mind you, what's a full T1: One form of it is 24(?) ISDN lines bonded together. I was on a 128k ISDN when I lived with the 'folks, as there was no DSL/Cable/Whatever. I torrented the hell out of that connection. Sure, it took some serious time to pull down a .iso of a movie. But it worked. It *always* worked.
Tell that to the 800,000 firefighters in the USA who are unpaid, non-union, volunteer firefighters.
Used to?
http://www.epson.com/cgi-bin/S...
For the home market, they might not use their new UltraChrome HDR inks, but for the semi-pro and pro markets, they do. We have a 4900 here in the lab; amazing is a fair word to describe the output.
Funny.
The Russians thought the same thing about Simo Hayha: http://en.wikipedia.org/wiki/S...
Never underestimate the power of one man defending what he believes in.
It always was.
But Electrolytes are what plants crave, not humans!
This.
I've presented on vaccination (well, it was the Pharma industry in general, but vaccines are certainly part of that) when I had anti-vaccination folks in the group. Logic is out. Reason is out. I've had this one tossed at me: "You don't really think they took all of the mercury out of the vaccines, do you? They're just lying about it still being there". Or this gem: "Vaccination never worked. The diseases died out due to better hygiene and medicine". Scientific fact is in trouble when faced with "truth" like that.
So, sadly, it's going to take the undoing of the most significant public health victory in history to re-do what we knew 50 years ago. Legislation, insurance losses, fines...all good ideas. They don't do a damn thing in the face of "Well, I have a friend......"