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itsec is osha now? fair enough.
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Sep 1, 2017 22:08
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Anyone who thinks that the gas station attendant would notice trash can man filling up cans must have never worked at a gas station before. Where I live, you put your card in the pump, pump your gas, then leave without ever interacting with the attendant. I was always busy selling cigarettes and junk food to people, I didn't pay any attention to what's going on outside.
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Sep 1, 2017 23:17
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ChairMaster posted:Anyone who thinks that the gas station attendant would notice trash can man filling up cans must have never worked at a gas station before. Where I live, you put your card in the pump, pump your gas, then leave without ever interacting with the attendant. I was always busy selling cigarettes and junk food to people, I didn't pay any attention to what's going on outside. I am the one tourist who has a foreign credit card that doesn't have a 5 digit zip code associated with it and who comes in after entering 00000 and 90210 failed. Seriously America what the gently caress not everyone has 5 digit zip codes.
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Sep 1, 2017 23:21
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spankmeister posted:I am the one tourist who has a foreign credit card that doesn't have a 5 digit zip code associated with it and who comes in after entering 00000 and 90210 failed. 20500
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Sep 1, 2017 23:41
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spankmeister posted:I am the one tourist who has a foreign credit card that doesn't have a 5 digit zip code associated with it and who comes in after entering 00000 and 90210 failed. 42069 my friend.
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Sep 1, 2017 23:42
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spankmeister posted:I am the one tourist who has a foreign credit card that doesn't have a 5 digit zip code associated with it and who comes in after entering 00000 and 90210 failed. Welcome to America! 
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Sep 1, 2017 23:53
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Phanatic posted:Passwords are pretty much precracked via rainbow tables anyway, so there's not really a whole lot of difference between 123456 and any other 6-character string. The only defense is length, the "complexity" of the password in terms of what characters you use in it is pretty much irrelevant. Which is why any backend that stores unsalted password hashes is run by someone who needs to be fired, and also why password policies should permit the use of long passphrases. It's terrifying that *banking sites* still limit your password length. Salting is the reason you almost never see encryption that can be handled via rainbow tables any more.
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Sep 2, 2017 00:36
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I recall the days of signing up to things with four letter minimum passwords.
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Sep 2, 2017 00:46
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Phanatic posted:I need to change that password every 3 months. Policies like that encourage two behaviors: You either pick easy-to-remember passwords that can be brute-forced[*] in a second or two at most, or you use hard-to-remember passwords that you write down on a note somewhere in your desk drawers. Also enforcing password changes too often just means people will change it to "password1", then "password2", "password3" and so on..
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Sep 2, 2017 00:48
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SOLarian posted:
One of my profs had a story about how a wooden platform used durin cleaning was accidentally left inside the primary side of a CANDU reactor steam generator after it was sealed and refilled with heavy water and how he was tasked to find out if you can run the thing with wood in the primary heat transport system apparently the answer is you can and that at 300 degrees celsius and 10 MPa the wood is essentially a liquid edit: they drained it and took out the wood platform instead though because it was cheaper and easier than cleaning the wood residue out of the fuel channels and such later on BattleMaster fucked around with this message at 00:57 on Sep 2, 2017 |
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Sep 2, 2017 00:51
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Valt posted:A lot of people in
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Sep 2, 2017 00:56
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spankmeister posted:I am the one tourist who has a foreign credit card that doesn't have a 5 digit zip code associated with it and who comes in after entering 00000 and 90210 failed. After many trips to the states, I was only recently told that as Canadians, you're supposed to enter the numbers from your postal code plus (I think) trailing zeros. So T2Z 4S3 becomes 24300. But seriously Americans, what the gently caress is the zip code entry even for?
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Sep 2, 2017 01:16
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Yes, it's like a lava lamp.
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PittTheElder posted:After many trips to the states, I was only recently told that as Canadians, you're supposed to enter the numbers from your postal code plus (I think) trailing zeros. So T2Z 4S3 becomes 24300. Low effort verification that the person using the card is an authorized account user, and/or a survey for market demographic data, I guess.
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Sep 2, 2017 01:19
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BattleMaster posted:One of my profs had a story about how a wooden platform used durin cleaning was accidentally left inside the primary side of a CANDU reactor steam generator after it was sealed and refilled with heavy water and how he was tasked to find out if you can run the thing with wood in the primary heat transport system Where do you put a wooden scaffold inside the primary side of a steam generator? Are you talking about the lower intake area at the bottom of the steam generator? drat, and it's heavy water too... that stuff isn't cheap.
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Sep 2, 2017 01:59
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Three-Phase posted:Where do you put a wooden scaffold inside the primary side of a steam generator? Are you talking about the lower intake area at the bottom of the steam generator? Yeah, it was at the bottom near the PHT inlets/outlet:  I can't remember if it was a scaffold per se or just a cover for the inlet and outlet holes. The thing was partially disassembled so workers could get inside but I'm pretty sure that area is big enough for a man to stand in even fully assembled. They reassembled it and refilled it without taking the wood out but I can't remember how they discovered it was missing in the first place. I think it was something like the worker who improvised it had a lightbulb moment and realized it was missing when he went to brag about the awesome solution he came up with. I'm a little fuzzy about the details because my main takeaway is that you can in fact run a CANDU with wood in the coolant if you're desperate enough BattleMaster fucked around with this message at 02:11 on Sep 2, 2017 |
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Sep 2, 2017 02:05
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Did they have some process for draining and then rinsing out any residual D2O that would be radioactive in the primary loop? Looking at the designs of the CANDU - four primary water pumps (looks like vertical medium-voltage induction motors with redundant seals on the shaft since it is pumping superheated radioactive water) feeding four steam generators. Only 500 or 600MWE (megawatts electrical) though per reactor but it works. https://canteach.candu.org/Content%20Library/19930204.pdf Looks like I found my reading material before bed. EDIT: Wow I didn't realize there were separate water channels for coolant water and moderator water in the caldera. Three-Phase fucked around with this message at 02:23 on Sep 2, 2017 |
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Sep 2, 2017 02:16
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During operation, water is periodically drawn off from the coolant and sent to a facility that removes the tritium using some kind of cryogenic distillation process that I studied in a course years ago and can't remember anymore because I'm a health physicist now. Water that's removed is made up with purified heavy water, which keeps the PHT coolant at some average level of tritium concentration during operation. The coolant would have been pure nonradioactive heavy water before starting it up, and the loop was squeaky-clean as a result of the maintenance they just did, so at least they didn't have to deal with that when pulling the wood out. Too bad about the lost money from overtime pay, additional downtime, and probably some lost heavy water that had soaked into the wood though, lol
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Sep 2, 2017 02:24
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Isn't heavy water like $1000/gallon or some ridiculous cost like that? (Or like $500CAD a liter?) Whenever I look at the prices of books they're like "$19.99, $29.99 CAD" so Canadian heavy water is probably more expensive than American heavy water.
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Sep 2, 2017 02:34
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Three-Phase posted:Isn't heavy water like $1000/gallon or some ridiculous cost like that? (Or like $500CAD a liter?) I don't know what the precise cost is but yeah poo poo's expensive; it might be made up for due to not having to use enriched fuel though. Also made up for by how CANDUs can run off of anything that's fissile like how Soviet tanks can run off of anything that can burn  
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Sep 2, 2017 02:41
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spankmeister posted:
Everyone that matters does though
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Sep 2, 2017 02:44
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Three-Phase posted:Isn't heavy water like $1000/gallon or some ridiculous cost like that? (Or like $500CAD a liter?) Not too expensive 10 grams for $15.00 https://www.unitednuclear.com/index.php?main_page=product_info&products_id=135
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Sep 2, 2017 02:49
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Four pounds of D2O is over $700.
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Sep 2, 2017 02:50
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BattleMaster posted:Also made up for by how CANDUs can run off of anything that's fissile like how Soviet tanks can run off of anything that can burn That’s more of an American thing. Diesel engines can burn a lot of things, but they’re no match for turbines that will happily run on anything from peanut oil to Chanel № 5.
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Sep 2, 2017 02:51
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I'm interested that they use heavy water for coolant as well. Maybe to make the reactivity math easier? 
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Sep 2, 2017 02:56
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http://i.imgur.com/fO6MqcA.gifv
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Sep 2, 2017 03:07
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https://www.youtube.com/watch?v=GYs2IU8b3_w Well that's certainly one way to check if a high voltage cable is still live... 
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Sep 2, 2017 03:09
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ArcMage posted:I'm interested that they use heavy water for coolant as well. CANDUs are so miserly with the neutron economy that they can't sustain a reaction at all if the coolant becomes contaminated by too much light water; in fact, columns that can be selectively filled with light water or emptied are used as a reactivity control measure edit: they'd be a lot more more tolerant of contamination if they're fed enriched uranium fuel or MOX fuel with higher proportions of plutonium but the heavy water moderator and coolant is also why they can run off of weird or crappy fuel BattleMaster fucked around with this message at 03:17 on Sep 2, 2017 |
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Sep 2, 2017 03:10
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Sep 2, 2017 03:26
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This is like one step removed from the gasoline fight in Zoolander
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Sep 2, 2017 04:21
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Jet Jaguar posted:This is like one step removed from the gasoline fight in Zoolander https://www.youtube.com/watch?v=ZnZ2XdqGZWU&t=164s Wake me up before you go-go
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Sep 2, 2017 04:36
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Phanatic posted:Two things, though. First, a lot of passwords are pretty useless. I need to create an account to order online from my local pizza place; throwaway accounts like that, things that it is not possible to compromise in a meaningful way, are going to get useless passwords like 123456. Second, there are a lot of utterly stupid and self-defeating password policies. At my work, I need to include capital and lower case letters, plus numbers or special characters, and, oh yeah, I need to change that password every 3 months. Policies like that encourage two behaviors: You either pick easy-to-remember passwords that can be brute-forced[*] in a second or two at most, or you use hard-to-remember passwords that you write down on a note somewhere in your desk drawers. Fortunately, NIST has revised the recommendations that led to policies like that, but that will take a while to filter down. Collateral Damage posted:Also enforcing password changes too often just means people will change it to "password1", then "password2", "password3" and so on.. Services with absurd password requirements that you then have to type, often, on a phone keyboard, are how poo poo like "Aaaaaa1!" happens. At some point you actually have to just let the authorized user access their poo poo without excess difficulty. Looking at you, banks. (Chrome for Android syncing saved credentials is a lifesaver)
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Sep 2, 2017 05:42
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American Express has been the worst at this. Literally forcing me to have the simplest and last secure password. 2FA would be very nice on most systems.
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Sep 2, 2017 06:34
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Phanatic posted:Two things, though. First, a lot of passwords are pretty useless. I need to create an account to order online from my local pizza place; throwaway accounts like that, things that it is not possible to compromise in a meaningful way, are going to get useless passwords like 123456. Second, there are a lot of utterly stupid and self-defeating password policies. At my work, I need to include capital and lower case letters, plus numbers or special characters, and, oh yeah, I need to change that password every 3 months. Policies like that encourage two behaviors: You either pick easy-to-remember passwords that can be brute-forced[*] in a second or two at most, or you use hard-to-remember passwords that you write down on a note somewhere in your desk drawers. Fortunately, NIST has revised the recommendations that led to policies like that, but that will take a while to filter down. code:code:ArcMage posted:I'm interested that they use heavy water for coolant as well. It's an effective neutron moderator, turning fast neutrons into thermal neutrons. Boiling it all off (if there's a tsunami that's killed all your back up coolant pumps, say) removes moderation and fast neutrons alone won't sustain the chain reaction. IPCRESS fucked around with this message at 07:11 on Sep 2, 2017 |
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Sep 2, 2017 07:06
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My work has a mildly onerous password policy. Nothing too crazy, but I liked how when it went into effect the olds that work there acted like the world was coming to and end. Our intranet site lets people comment on the news bulletins posted there, usually any particular time might get one comment at best, maybe two. The news bulletin about the password requirements had dozens upon dozens of posts from olds pulling their hair out and gnashing their teeth about it. "There's only so many hours in the day, how can we possibly be tasked with remembering a password with UPPERCASE AND LOWERCASE LETTERS?!?!?! MADNESS!" or "People will quit over this! This is just upper management adding one more task to our day! I won't participate!" One women in my department was brought to tears just from hearing about what was going to be required. She hadn't even tried to create the newer stronger password yet, or even forgot it, just hearing about it was enough to send her into hysterics. It doesn't help that we have an automated password reset system in place in case you forget it, but again, no one over the age of about 47 will ever use it because "What am I, made of time or something?! That'll take forever. And look, it makes you click on a window! Pfft, gently caress that."
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Sep 2, 2017 07:09
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atomicthumbs posted:"I think we can replace all these janky old PLCs with something close to the metal. Have you ever heard of node.js?" As a CS person writing firmware for PLCs I'd say you are being more than a little unfair. In particular, something like half the engineers working with our software have no idea what a "race condition" is, which uhh is a problem when programming safety-critical stuff. What you shouldn't do is let web developers touch PLCs, but that's a very different thing. e: The idea behind the various control-software languages is to make something so idiot-proof that even someone who's complete dogshit at programming can use it hopefully without loving it up. Private Speech fucked around with this message at 10:34 on Sep 2, 2017 |
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Sep 2, 2017 08:03
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Three-Phase posted:https://www.youtube.com/watch?v=GYs2IU8b3_w beanie, grey/blue jacket, casual littering, utter disregard for human life yep, that's Russia.
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Sep 2, 2017 08:19
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Jet Jaguar posted:This is like one step removed from the gasoline fight in Zoolander   look at that bag slosh
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Sep 2, 2017 08:21
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neonbregna posted:Everyone that matters does though Since your country is circling the drain, I'll let you have this one buddy.
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Sep 2, 2017 08:24
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Synthbuttrange posted:
*yelling from a distance* "it's okay! I double bagged it!" (later): 
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Sep 2, 2017 08:26
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Sep 2, 2017 11:24
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