Way to go off topic.
980 posts • joined 30 Dec 2010
Re: Partly our own fault - or our bosses'
Indeed. I once attended a site to try and restore lost data. This is the late 90's
They had a backup regime which consisted of an elderly secretary who's PC had a tape drive.
Her written instructions were very clear - each morning, take the [previous days'] tape out of her computer and replace with the one that had that had today's day written on it.
Don't mess with anything and don't do anything other than this.
Which the lady had followed religiously.
Alas the backup software hadn't run so there were no backups.
The poor lady was close to tears as their "IT guy" was trying to give her hell. I don't think he appreciated my putting the blame squarely back onto his shoulders in front of the MD.
He then, of course, tried to allude that the fault was mine. I genuinely laughed in his face.
I've had a few of these over the years
One springs to me mind where my then boss emailed me telling me to install the Exchange 2010* Management Console onto a couple of Citrix servers
Then tried to blame me for not uninstalling the Exchange 5.5 management console from them.
Because I should have somehow known...
Of course I pointed out his failure to instruct != to my perceived failure to act and since the two consoles can be present on the same machine to manage both environments, how was I supposed to assume?
I can imagine the screaming if I'd taken it off without being told to find it was still needed.
*Might have been 2007. Was a good few years ago now.
Suunto settles scary scuba screwup for $50m: 'Faulty' dive computer hardware and software put explorers in peril
Re: Gas calculations
"...I know my tidal rate is 18l per minute. So 36l at 20m..."
Just noticed this. You might want to check your maths there. 20m = 3bar, not 2.
Mind you, I'm making assumption myself that when you say tidal rate, that you mean surface air consumption?
If also suggest you rethink you're buddy having smaller cylinders.. what happens if you need to share gas? You should always cater for the heavier breather
Re: Its not just dive computers
"...My old BSAC DO died while using a rebreather, this is back in the day of question marks over the Buddy Inspiration, an O2 hit can knock you out faster that you can say Ja...."
An O2 seizure in and of itself isn't fatal. It's by virtue of being underwater - you drown when your regulator slips out of your mouth.
On my RB, I have a gag strap. I can do this because of my open circuit bailout being integrated into the loop. It means if I did get an O2 hit and associated seizure, the loop won't drop out of my mouth and I shouldn't drown.
It's something you can do on a rebreather because you can't buddy-breath on them. For that, my buddy and I have our open circuit bailouts configured with a regulator we can pass to another diver if required.
We don't do it on open circuit because we follow the practice of handing off our primary to another diver. PADI expect you to offer your octopus but this has a number of possible problems - first a panicking diver will grab the first regulator they see which tends to be the one in your gob.
Secondly, you know without fail that the regulator in your mouth is functioning and has a breathable gas.
Our backup is on a rubber holder round our necks so it's a quick pull and use - and yes, we practice doing it by touch alone.
Re: Serious Divers...
Re' Algorithms are notoriously different between different manufacturers,
Not so much anymore. Shearwater and OSTC use the same algorithms and will and give the same results. You can also run something like v-planner that uses the same algorithms and get your dive profile to write out on slates.
Suunto however do use their own closed-source algorithm which they don't publish details on and you can't use things like v-planner to match them so you're then in that very scenario you talk about, relying on a single point of failure and maybe if you remembered, their own software with no checks and balances.
In terms of setting the gradient factors this is where getting trained by someone like Mark Powell is a benefit. You actually get taught what they mean, how to set them and how/when/why you might want to change them.
Also for any technical diver, I'd say his book Deco for Divers should be a pre-requisite before you even start training.
Ultimately it's a fact that all decompression tables/computers/algorithms are best guesses to an extent. You can dive a profile that should be "safe" and still suffer DCI.
@M.W. - Helo2 is far from a bad dive computer other than using proprietary closed algorithms which make it impossible to plan on most widely available software and have the same runtimes.
But the big one is the screen. Ok if you're in clear waters. Crap if you're in somewhere with low visibility.
It should be taught from the earliest levels and reinforced on higher level courses. A wave, an errant fin or even your own hose or hand etc can all lead to a mask on the head being lost.
I have a bungee in my left thigh pocket of my drysuit.
Things like spools and a spare mask are clipped onto the bungee. If I lose a mask, I can open the pocket, pull out the whole lot and find the mask easily to unclip from the bungee - all one handed.
Re: Its not just dive computers
"...Yes there are advantages to them but they do come with potentially increased risks and divers using them also put themselves in riskier situations but in the diving community there has always been that certain element who do appear to have a death wish..."
Ignoring the second-hand market, you cannot buy a rebreather unless you are trained and qualified on that model and can prove it. In many cases you can't even buy spare parts.
I see divers do silly things all the time - from diving twinsets without being trained on them and having no idea how to do a shutdown, or being trained to do decompression diving, to rebreather divers diving with no open circuit bailout of any kind, to divers diving beyond their training - into overhead environments (it's only a wreck right...it's not like a cave, right?), below the MOD of the gas they're on, diving with out-of-test kit (although good luck getting a fill on out-of-test cylinders) etc etc etc
"...Don't you mean a high pressure hose, your tank will empty fairly quickly in that scenario compared to a low pressure hose ?...
No, I don't.
As counter-intuitive as that is - a high pressure port is tiny - literally a pinprick in size, so a blown HP hose takes a long time to empty cylinders. On many dives, long enough to surface.
A low pressure port is large - several orders of magnitude larger. A low pressure blowout will drain near-full 12l twins in around 35 seconds.
I was always taught that PADI stood for "put another dollar in" due to their high fees and requirements to buy brand new text books for every course and not write on a separate notebook and then resell your text book.
Also, Pay Again, Dive In-between
And let's not leave BSAC out - Buoyancy? Sink And Crawl
Maybe, just maybe, diving is considered a recreational hobby for some people? Therefore to go diving you don't need to be a *serious diver* [see 'no true Scotsman']. Suunto do pretty well out of their products so plenty of people buy them. I still have a stinger that works fine. So I'm not sure why you 'have an issue with this'. For sure any dive kit sure be recalled straight away when found to have faults in multiple units, but what are you saying - Suunto should have been shut down regardless of this incident as everyone should only be a serious diver and therefore if you're not buying high end expensive makes then you shouldn't be allowed in the water in the first place?
As for manual calculations - the whole of your dive course will be spent on learning manual calculations, creating dive plans and working off manual air cylinder readings. However a dive computer makes life easier especially when ascending, caught in currents or when visibility is poor...."
Way to take things out of context.
I have an issue with people blaming equipment first and themselves second. Dive incidents are almost always down to diver error - and even most equipment failure can be prevented by a few simple visual checks of kit before and after dives.
Also, what I am saying is that relying on wireless kit underwater (which all Suunto integrated computers use) without having an SPG and depth gauge is stupid.
I am also saying that there is never any excuse to run out of gas unless you pop a low pressure hose.
Anyone can count. Any diver should know that at a depth they use X times more gas than at the surface - and if you're in most of the world using the metric system it's dead easy - twice as much @10m, 3x as much at 20m and so on... therefore if they're still down there thinking "hey my gas use is zero and my cylinders are full" (or some part therein) then they are quite simply stupid.
If you know your gas for a particular dive will last, say 60 minutes and your air integrated dive computer or SPG (because you kept that, right rather than rely soley on that little transmitter pod?) half an hour in is not saying you're at 50% or thereabouts then even without adding up you should know something is awry.
But as a diver you know all of that already.
Re: Isn't that what the watches with the numbered bezels are for?
Not sure why you got the downvotes Ken - a timing device and a dive plan written on a slate is a good backup strategy (see my other post below).
There are diving watches with nice big luminous hands and dots that will suffice but people tend to prefer something electronic - I have a buddy device that does a bit more than just timing and it's slipped into a pocket.
Mind you, if I'm on my rebreather, it has a Shearwater computer on my left wrist and I have my OSTC on my right wrist. The OSTC is independent of the CCR/Shearwater so acts as a completely independent backup.
Which means between my dive buddy and I, we have 4 "full" computers and two HUDs
Re: Its not just dive computers
"...The really scary stuff was rebreathers. These are bits of kit that take the air you breath out, scrub the CO2, add the oxygen back in, and let you breath it again. Advantages are much smaller tanks of compressed oxygen rather than air (8o% nitrogen), and no stream of noisy bubbles to scare the fish. The disadvantage is that if the oxygen replenishment fails you die before you realise there is anything amiss. One horror story among many: a device that reset itself to "off" when it got knocked..."
I wondered how long it'd take to get to the scare stories of rebreathers.
I dive a Closed Circuit Rebreather (CCR) manufactured by a company called JJ.
They can be more dangerous but if you use them properly, get properly trained, and use your brain then they are actually, in many ways, safer than open-circuit breathing for lots of reasons, but here's a few:
I can stay down MUCH longer on a CCR - in some cases, hours. That means if I have a problem, I am not panicking that I have to sort it before my much more limited time on open circuit is over.
I always get the optimum gas mix for the depth I am at (dynamically), so my decompression times are always optimised and I feel fewer ill effects than on open circuit.
They have multiple failsafes and backups (two independent computers - one of which is a coloured HUD right in front of my eye), 3 oxygen cells and in my case an open circuit bailout - at the flick of a lever I am off the rebreather.
Yes, they can kill you interesting and quite sudden ways if you're not careful, but they are actually safer than open circuit in many ways (for one thing, the sheer cost alone puts off part-time or holiday divers). The level you have to get to in training and certification before even considering them is a very high bar.
Sad and scary and they should have acted when informed, but also, I have some issues with this.
Firstly, no serious diver would use a Suunto (and certainly no technical diver). There are plenty of alternatives out there - OTSC and Shearwater to name just two. Don't get me wrong - if you only ever dive recreationally and in crystal clear, warm waters, they are ok(ish) but they're usually bought as a first dive computer because the novice diver knows no better and their local dive shop where they happened to train and qualify, stock them.
The pods that send pressure information to a dive computer are notoriously flaky. Anyone without a traditional SPG is just asking for trouble.
However...a diver should also understand their SAC (Surface Air Consumption) - mine is roughly 16l per minute, so I know on a relaxed dive @ 30m I'll be using 4 x that (64l/m). I also know that in my twin 12l cylinders filled to 200 bar, I'll have 4,800l of gas...so I know how long that will last me under normal circumstances and I will plan a dive profile that takes that run time into account inlcluding any required decompression + enough to buddy breath if required. I'll have the dive profiles (different scenarios for ending the dive early/overrunning etc) with timings written on a slate so all I need is a time source and I can still safely manage the dive.
Too many divers - especially holiday divers are all too willing to just jump in the water and not plan what they are doing, or at least plan the dive profile. Too many rely entirely on a dive computer to tell them when to end a dive. Too many divers go in the water with no thought to what happens if there's an issue or without any kind of backup gas source (and as much as I hate 3l pony cylinders, they're just about better than nothing).
Dive computers aren't a replacement for a brain.
Trial version of Windows
Many years ago I got called out to a site in, as I recall, Hammersmith in London.
Quite a long drag for me as a Midlands lad.
One of my colleagues had built the customer a shiny new Citrix farm. With an Evaluation copy of Windows NT4 TSE
Because he erroneously believed that you could simply add a license.
Which back then, you couldn't.
And it wasn't as graceful as the reboot every 24 hours. Oh no...this was a BSOD with a license violation error every 24 hours.
Cue a rebuild of the environment.
At least it was documented...lol of course it wasn't.
Unfortunately the guy who did the original build was a few days into a two week holiday abroad so he ducked that cluster-stuff nicely.
Parallels bought 2X
2X were a company competing in the same space as Citrix and RDS.
Although I never had any direct contact with their products, their licensing (way, pre-Parallels acquisition) was always far more favourable than Citrix.
And I know of companies using it and their comments always suggested they were happy with their choice.
I was always impressed with the coherence mode of Parallels (I believe that's the name they gave it? Where Win apps appear seamlessly as if they were native Mac apps) - it always seemed to j"ust work" - which in the IT world, as we all know, is high praise.
It'l be interesting to see how this pans out.
American bloke hauls US govt into court after border cops 'cuffed him, demanded he unlock his phone at airport'
Contrast this to Malta
My dive buddy and I were travelling back from Malta with diving rebreathers.
Because of various logistical issues we had cylinders. We always carry the expensive, sensitive electronic head units in our carry-on and everything else goes in the hold in a peli case.
We always depressurise and open the cylinders which is a requirement to take them on any aircraft.
Having just passed through security, dealing with an extremely pleasant border guard who had taken our luggage to one side for further inspection and questions about what it was etc, my name was called on the tannoy.
I had to go back out of security to open both peli cases to show that the cylinders were indeed opened and depressurised.
Everyone was most apologetic at the delays. They promised they would treat our kit with respect and care and I watched as they reapplied cable ties and very carefully put the cases on the conveyor along with an "inspected" sticker.
When I returned to security, the same border guard recognised me and waved me through (i'd left my carry on with my dive buddy).
At every turn they were polite, respectful and even apologetic whilst going to great lengths to explain that they have a duty of care to the aircraft and other passengers to ensure the cylinders are depressurised.
I've heard stories (admittedly always second-hand) of rebreathers being "inspected" going through US customs with some kind of probe - puncturing the counterlungs and rendering the rebreathers useless until spares are bought.
A year after Logitech screwed over Harmony users, it, um, screws over Harmony users: Device API killed off
"...Let's hope we get a Peoples Vote and the ability to get out of this dogs dinner that infighting withing the Tory party has inflicted on the nation..."
Yeah all that bollocks about a second vote letting down the public...how about acknowledging that sheer amount of bollocks and lying that went off before - and has gone on since - the vote?
Maybe now people can see the kind of shit pie they are about to eat, they might have a different perspective?
I'm all for honouring a vote and it's fair to say that in the run up to any kind of major election etc, there's always a large amount of fact manipulation, but...
Oh well. :(
Re: All credit to iD games...
"...W3d would (grudgingly) run on a 286 with just 640k of ram; Doom's official minimum spec was a 486 with 4mb of ram, though it would judder along on a 386 if you were desperate..."
Yes but it had to be a 386DX - wouldn't run on an SX. I know...I had to swap my motherboard and/or CPU.
It's so long ago I can't really remember if it was just one or both or if they came as a unit back then.
Didn't the original crash WAN links due to each round fired from the minigun being a while IPX packet? (None of that fangled TCP/IP back then, no siree).
My mate and I used to have two desktop PC's (and 15" CRT's) on the dinning room table and connected by serial cables...or that might have been a bit later with Duke Nukem 3D.
Fabulous fun though.
Re: Legal Document?
"...I don't know what UK law is, but in Germany, for example, a prescription sent by fax (or anything sent by fax) is a legally recognized documen..."
I don't know if it's still the case but it certainly used to be, as a fax was considered to be a facsimile of an original that couldn't be altered in-flight or post-delivery.
Of course, I am sure that there are ways that they could be altered in-flight if you were able to set up some kind of MitM attack, but still.
And for that matter, I believe that the vetting agencies here in the UK (at least until recently) often had pre-programmed fax numbers that were considered acceptable means of confirming/transferring clearance but that could have been one of those half-truths I picked up along the way.
Edit: Ah look: https://www.efax.co.uk/blog/why-fax-is-legally-binding
Of course, eFax have skin in the game, but...
(And yes..I realise fax = facsimile) :)
"...Work? Work!?! I think you are failing to understand the business model of the standard administrator..."
You are absolutely correct - I do fail to understand it.
And indeed, came here to ask if anyone could explain why the administrators always seem to be the winners in this kind of scenario? Do they actually keep this money or is it used to pay creditors? From the wording in the article it seems it would be the former.
Not being in any way facetious - this is just something far outside of my own expertise and experience.
Re: This sh*t again?
"...I'm a happy firefox user, but have to accept that it's in decline. I see plenty of companies that still use IE. I see plenty that have standardised on Chrome. I'm yet to see one that uses FireFox or Edge as the desktop standard..."
No surprises there - no native GPO support has always been a killer in an enterprise. I'm not up-to-date on FF but I believe this was announced as coming?
But on top of that, things like (until a couple of yeas ago) the browse not using the Windows certificate store were also very anti-enterprise.
I had to deploy it in a high security environment and the idea of using external, relatively unknown, third-party plugins and addons to do some of this stuff was never going to be allowed.
..."You've behaved ethically, putting long-term consumer concerns first..."
Up until now. Because it was easy to take that stance when they were selling massive quantities of phones.
But how long they continue to do this if their sales are slipping is anyone's guess but I would suspect "not that long" to be a fairly valid answer.
If you completely wipe every machine you find where a user has simply managed to open a dodgy web page, you'd be one-busy chap! So long as the user hasn't downloaded the said "fix" from the hijacked/redirected site, the laptop should be no more infected than any other machine...."
Alas in this day and age of drive-by infection, I'd rather be busy than take the chance.
Oh, I wish it could be Black Friday every day-aayyy, when the wallets start jingling but it's still a week till we're paiii-iid
Re: Where would most of us be......
"...If we hadn't had a go at repairing things when we were PFYs?
Without tearing things apart and putting them back together and getting them to work (frequently with bits left over) there would be little interest in technical careers. Where is the next generation of tinkerers?
I have (almost) repaired previous ipods (well the 64GB is now a 20GB as I couldn't scrape up a proper replacement drive) and am no stranger to melting my digits on a soldering iron. Apple are doing a disservice to human curiosity,
Thankfully, I had no interest in medicine....."
I couldn't agree more.
Waaay back in the day I was an electronics engineer. I fixed everything from electronic typewriters, photocopiers, cordless phones and laptops and computers all to component level.
It meant understanding what I was doing but also being able to learn what were often quite clever interpretations of various things.
Then slowly and surely things became more modular in their repair - change the entire board and don't waste time repairing it.
Surface mount devices had already started to quicken this, but custom silicon that you couldn't actually buy was a huge contributor.
Then, for me, Dell knocked what was a huge nail in the coffin by offering a complete PC (an early Optiplex, if I recall) with a 3-year on site warranty for something like £360. This would've been around '96/'97
That's when I made the switch over to projects-based work.
I dabbled for a good 10 years or so afterwards, repairing the odd CRT TV or even a pump for a power shower one time, but gradually things became less and less and less repairable.
It was a great and constant learning curve and one I still miss even now.
The death of Maplin meant no easy access to those little kits you could buy to build with the kids - not that either of mine ever showed any bias for engineering of any kind.
I guess what I'm getting at is that it's not something that has happened overnight but with the likes of Apple and their drive to make things throwaway. it does seem to have accelerated. And it's a real shame.
So many tings about Tesla
Let's not forget without him - no AC (edit for our US'ian cousins, I don't mean Air Con, I mean Alternating Current).
Westinghouse royally screwed him over as well, taking advantage of his will to ensure the best for others.
Mr Dabbs...this will surely do your nut in, given it's both Tesla-driven AND C&W?
If you have inner peace, it's probably 'cos your broadband works: Zen Internet least whinged-about Brit ISP – survey
I'm with Vodafone
And very happy to date.
Made the move from BT - at the time I got fibre, it was literally on the day that BT updated their site to say it was available, and I had the choice of one ISP - BT.
The few times I've had to call Voda they've been knowledgeable and helpful (and UK based).
Re: No headphone jack
"...it consumes a miniscule amount of space and it costs pennies..."
Many years ago in the very early 90's, one of the jobs I had was repairing Sharp electronic typewriters and word processors.
The most popular typewrite that Sharp did was also their cheapest and simplest - no memory, no bells and whistles at all - it was basically a solenoid for the hammer and a stepper motor for the daisywheel and another for the platen. You could pick them up in Boots at the time for less then 50 quid.
I went to their factory in, as I recall, Wrexham.
Speaking to one of their managers, one of our guys queried why they'd stopped putting two screws in to hold the metal frame into the case and had started to use a clip moulded into said case. They were quite brittle and if you weren't careful, it was quite easy to snap them.
The manager from Sharp said they'd done some calculations and because the process to put the components together were manual, it meant they could remove one person from that assembly line.
When scaled out, they saved 9p per screw (this included the person). They sold 100,000 units a year in the UK alone.
So those things that cost pennies start to save you a large sum of money when scaled up into the hundreds of thousands.
I'm not defending it - just giving one of the possible rationale.
Sorry friends, I'm afraid I just can't quite afford the Bitcoin to stop that vid from leaking everywhere
I've seen a definite uptick in these
Had a few land in my spam folder this week.
They all use the same throwaway password I only use on websites that insist on registration but hold no other information beyond an email address, password and login name.
Honestly though, I guess I fall into the lucky-enough-not-to-care bracket, although I do understand there are poor souls for whom such a threat must be awful.
It's clever though, when you think about it - pull an email address and password out of one of the large files of them out there and spam away. The addition of the password adds a certain level of believe-ability that would otherwise be missing and I can see how it would fool a lot of people.
We asked 100 people to name a backdoored router. You said 'EE's 4GEE HH70'. Our survey says... Top answer!
Jesus what idiocy is this?
This is back to the days when all ISP supplied kit had the same crappy admin logins across the board.
Nowadays, every one I see has a tag/label of some kind with these details - it's not a stretch to print another line for this should it be required...but....why is it required?
And if you must have something like this, don't make it so easy to get that all you have to do is grep a file
Should a robo-car run over a kid or a grandad? Healthy or ill person? Let's get millions of folks to decide for AI...
Re: Divers ...
"...You're correct- Yes, divers max out way before that. Even with "The Abyss"-style liquid-breathing systems you'd suffer neurological damage at those depths..."
Actually...the record on open circuit SCUBA equipment is deeper than 300m:
Not that you're incorrect about the physical and neurological risks these people expose themselves to.
Re: If it’s intact…
"....…why is it at the bottom of the sea? I mean, something must have compromised its buoyancy and, short of it being carefully filled with water by a capricious god, I’d have thought that same something would have broken its intactness. If I break the screen of my phone I wouldn’t describe it as intact - even if I keep all the shards with it and, from the picture, that boat looks rather broken (although, I admit, remarkably well preserved).
Okay, pedant mode off. This is an impressive find. I look forward to seeing what else they find on it..."
Re: Cloud based services
"...'The cloud' is once again overrated.
All eggs, in one basket [even a distributed basket] is not necessarily a good idea.
I like github but I don't stake my business on it always being there. A lot can go wrong between my computer and their servers. A lot..."
Worryingly, that's twice in a single month you've to only made sense, but I find myself generally agreeing with you, bob
However, like I've said before on here, just because something is in "the cloud" doesn't and shouldn't absolve the owners of the data/service of their responsibilities. These are usually the same people who wouldn't bat an eyelid if told - correctly - that you wouldn't trust the data/service to a single point of failure they own themselves.
And yet we still see this "throw it over the fence and it's someone else's issue" mentality time and time again.
"Cloud services" can work well. But they are not a panacea and they still require some levels of simple management and accountability.