the likelihood of ANY hard drive actually working even 10-15 years down the road after years of disuse and questionable storage is basically "nonexistent", and depressingly low even if you've kept it in a 70 degree room with low humidity the whole time.
For a properly designed hard drive, it shouldn't be a problem at all. Just for the giggles I've attached an old laptop hard drive from I think a bit before the turn of the century. It hasn't been used for 12+ years. I can image it to a file without any problems, so I can't but assume it's all readable. Files look OK. Vmware seems to boot Windows 95. So that's one anecdote.
Whatever it is that you're drinking, sniffing or shooting up on -- please abstain, for your own good. Or buy a new blade for your utility knife. Or are you just a troll?
Why would you send it out anywhere? Get a stock of various popular SSDs, get some reflow equipment, and replace bad chips with good ones. I don't see what's the big problem, if it's truly the dead controller chip that causes the issues.
No. It costs extra, you know. I think that brushes and commutators have, in this kind of use, greater reliability and lower cost than consumer grade electronics would have. Yeah, electronics are cool, but reliable electronics aren't that simple, and I don't know if Dyson's people have enough experience to deliver something that won't haunt their reputations and egos for a while. BLDC drivers are very easy to make, and very easily turn out to be unreliable crap.
If it was my product, I would have put a BLDC motor and a properly engineered driver for it, but then I know what it takes to design such a thing and test it to ensure I'm not just daydreaming or buying into our own marketing materials:) It may well be it'd add an extra $100 to the price of the vacuum, though -- they have profit margins to maintain.
So, where are those bagless Sears vacuums, then? It's not about who did it first, it's about who did it first in a certain form of a product. Our DC14 Animal is overall doing quite well, considering it's used in commercial duty (2-3h per day, every day). Sure there are things that wear out and have to be replaced, but for a household product it's still a remarkable level of robustness. Or course you can't have monkeys using it, duh.
It doesn't matter that you call it false. Either the theories have predictive powers and thus work sufficiently well, or they don't. If you think some theories are bad, well, there's some prizes to be claimed, go ahead.
Stop with the truisms. Sure it's us humans, that do the science, so yeah, there's no turning away from individual personal experiences. There'd be no human experience at all but for individual experience being there first. Science is way more than that. Scientific theories, to be called such, must have predictive powers. Religion only claims to have those, but doesn't deliver.
I like piriform's products, but their corporate behavior is slightly past the point of annoyance now. First the dumbasses asked Ninite to delist their products. Well, that's how I heard of you in the first place! Then they start going after people who make open source products? Well, guess what fuckers, I'm stopping the use of your products and I'll instead contribute the features I need (if any) to bleachbit. So there. I'll need to look for a different disk defragmenter.
~$150 on eBay. Not quite an impulse buy, but in the price range of a consumer pocket camera. Sounds like a consumer product to me:) Thanks for letting me know about this little nugget, though, maybe I'll get it for myself -- there are times when I feel like interviewing perfect strangers, so this might work for it. 48kHz 16 bit stereo PCM is 0.73 GB per hour, assuming 5% overhead. A 32 GB card is more than a day of continuous recording, should be plenty enough.
Be honest because honesty leads to goodness, and goodness leads to Paradise. Beware of falsehood because it leads to immorality, and immorality leads to Hell.
Generally speaking, claiming oneself to be a believer in Islam while being an obsessive liar is a bit of a problem. I guess politicians have their own way of redefining whatever "religion" they associate with... And, before anyone chimes in with the obvious, the below doesn't really apply because Iran is not Microsoft. They don't need Microsoft-style made-up plane FUD for any reason -- most readily because no one who is ostensibly the target of such fairy tales ("westerners") would take them on face value.
He is not a false person who (through lies) settles conciliation among people, supports good or says what is good.
The above quote applies, among others, when you tell a little kid "good job" when they still relatively speaking suck at whatever it is that they are doing. You might argue that fake PR is good for propaganda and for giving the Iranians a sense of pride. Well, careful there, because history tends to uncover such lies with relative ease, and all it does is breed hatred among the people. I'd have thought it easy to understand, but, well, it's the politicians we speak of here. They have their own logic:(
You're silly. These days it'd be way cheaper to have an engineering intern get a development kit of some sort, and turn it into a portable recorder/player. There are plenty of CPU development kits with decent audio A/D and D/A on board or pluggable via USB. Plenty also have SD card slots. You could probably make a decent player/recorder using a beaglebone with a USB audio I/O device, a couple buttons, a small display, and a battery pack. Probably $300 for the whole thing, plus intern's time. It really makes no sense to look for an on-the-market device of such a sort unless it fits the bill perfectly. Maybe there are such things out there... Who the heck will buy an obsolete device that you need to put work into for any sort of software support -- no point at all. Put the work into the new thing.
Her steering column wasn't adjusted properly. If she's short, she absolutely needs a car with adjustable steering column. I'm very sorry but an el-cheapo from Detroit doesn't cut it for everyone. I'm sorry about your sister, but that's not normal for an airbag deployment. I'm about 175cm tall and I've been both in a frontal crash at roughtly 60 km/h and a T-bone at 50 km/h. I didn't even have a headache, but then those were Volvos.
I had a T-bone and I vividly remember my shoulder and head being pushed into the air bag by inertia. If it wasn't for the air bag, I'd have at least bruises and a concussion, perhaps a broken collarbone, and who knows about a cracked skull.
Exactly. And when you get a billion of those imperfect leaky transistors on a chip, suddenly a big chunk of power gets wasted right there -- to a point where not only you can't ignore it, but it defines the limits of what you can achieve. Leakage is a big problem these days.
In modern small geometry chips, the leakage current starts to drive thermal/power performance, last I heard:( So no, you don't need very little current. Yeah, maybe per transistor, but you get a billion of them, and suddenly leakage plays a major role even if the clocks are stopped.
Exactly. For a decent 150nm process I think you can keep the leakage at microamps per a million transistors, or did I get that wrong? Alas, for a 30nm process, it's like 4-5 orders of magnitude worse.
Except that the smaller geometry CMOS you use, the higher the leakage current. In modern CPUs, the leakage wastes on the order of 10% of power IIRC, perhaps even more. As you go down to single dozens of nanometres, the leakage takes over dynamic current consumption -- IIRC, of course.
FPGAs essentially have "gates" that are not merely gates but small look up tables (LUTs), they also have storage elements, some dedicated arithmetic units for DSP (powerful ones do that), and a whole bunch of routing resources. If you want programmable logic of any sort, you'll need all that no matter what technology is used to reprogram the transistors. An FPGA usually has either internal or external configuration source (FLASH, a download from a CPU, etc.), and a volatile configuration storage that's attached directly to the transistors/gates to control their operation. Magnetic technology there would merely reduce power consumption by those volatile configuration storage elements. It'd not reduce the need for wiring the write elements for those configuration storage bits into a memory array of some sort, and any sort of magnetic technology would probably occupy way more space per bit of configuration data due to the size of the write elements - unless you can somehow make a multi-layer design where the circuitry for the write elements doesn't take up real estate from underlying CMOS circuitry. Sure the storage elements may be tiny, but the write elements needed to flip their magnetic state will not be so tiny, even if done using MEMS techniques. That's what I make of it.
Most Dysons have a foam motor prefilter and a HEPA postfilter. The HEPA filter is rated for life, and the prefilter has to be cleaned every couple of months. In my experience in heavy household use, the postfilter's life rating holds up so far. It looks dirty on the inside, clean on the outside, so it works fine. Those filters remove probably way less than 0.01% of the contaminants by weight from the airflow. Otherwise they'd be plugged solid in a matter of minutes. Just read about what happens when the inter-level seal on the bottom of the canister was failing in a batch of their vacuums -- it was so bad that the 2nd level cyclones were getting plugged solid, never mind the prefilter. The HEPA postfilter is useful at removing the carbon brush dust:)
For the Euro market, they could have designed three level hierarchy of cyclones and dispensed with any other filters, as there's enough power available from the outlet to deal with the dissipation in such a filtering system. What they've done instead is they designed for U.S. marked, with its usual limitation of 1440W available from the electrical outlet (they could have made a 14.5A device if they wanted to push it, but didn't and settled on the usual 12A rating). In Europe you have 3kW available and you can make some fancy vacuums with that much power available.
I have made a very nice sawdust extractor using 6 Dyson canisters as the first 2 stages of filtering, with a custom third level cyclone (81 cones) that obviates the need for HEPA filters. It runs off a 4kW motor with a multi-stage turbine (from an industrial compressor, I think it has 6 or 8 stages) and the exhaust air has a barely detectable wood smell. There are no other filters - I've run it for a while with a HEPA prefilter to the turbine, but since it was clean after a month of use, I took it out as it was pointless.
You don't dig what they have done, do you? Regular fans have a low-frequency noise related to the blade frequency. It's the "omph-omph" sound that you get with helicopters as well. Dyson has traded off this low frequency noise for higher frequency scream of the ducted fan. I have no idea how stupid one has to be to think there's no fan involved at all...
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the likelihood of ANY hard drive actually working even 10-15 years down the road after years of disuse and questionable storage is basically "nonexistent", and depressingly low even if you've kept it in a 70 degree room with low humidity the whole time.
For a properly designed hard drive, it shouldn't be a problem at all. Just for the giggles I've attached an old laptop hard drive from I think a bit before the turn of the century. It hasn't been used for 12+ years. I can image it to a file without any problems, so I can't but assume it's all readable. Files look OK. Vmware seems to boot Windows 95. So that's one anecdote.
Whatever it is that you're drinking, sniffing or shooting up on -- please abstain, for your own good. Or buy a new blade for your utility knife. Or are you just a troll?
Cool air doesn't make any difference.
Why would you send it out anywhere? Get a stock of various popular SSDs, get some reflow equipment, and replace bad chips with good ones. I don't see what's the big problem, if it's truly the dead controller chip that causes the issues.
No. It costs extra, you know. I think that brushes and commutators have, in this kind of use, greater reliability and lower cost than consumer grade electronics would have. Yeah, electronics are cool, but reliable electronics aren't that simple, and I don't know if Dyson's people have enough experience to deliver something that won't haunt their reputations and egos for a while. BLDC drivers are very easy to make, and very easily turn out to be unreliable crap.
If it was my product, I would have put a BLDC motor and a properly engineered driver for it, but then I know what it takes to design such a thing and test it to ensure I'm not just daydreaming or buying into our own marketing materials :) It may well be it'd add an extra $100 to the price of the vacuum, though -- they have profit margins to maintain.
So, where are those bagless Sears vacuums, then? It's not about who did it first, it's about who did it first in a certain form of a product. Our DC14 Animal is overall doing quite well, considering it's used in commercial duty (2-3h per day, every day). Sure there are things that wear out and have to be replaced, but for a household product it's still a remarkable level of robustness. Or course you can't have monkeys using it, duh.
Read Asimov's The Relativity of Wrong and stop being so stupid, mmkay?
It doesn't matter that you call it false. Either the theories have predictive powers and thus work sufficiently well, or they don't. If you think some theories are bad, well, there's some prizes to be claimed, go ahead.
Stop with the truisms. Sure it's us humans, that do the science, so yeah, there's no turning away from individual personal experiences. There'd be no human experience at all but for individual experience being there first. Science is way more than that. Scientific theories, to be called such, must have predictive powers. Religion only claims to have those, but doesn't deliver.
I like piriform's products, but their corporate behavior is slightly past the point of annoyance now. First the dumbasses asked Ninite to delist their products. Well, that's how I heard of you in the first place! Then they start going after people who make open source products? Well, guess what fuckers, I'm stopping the use of your products and I'll instead contribute the features I need (if any) to bleachbit. So there. I'll need to look for a different disk defragmenter.
~$150 on eBay. Not quite an impulse buy, but in the price range of a consumer pocket camera. Sounds like a consumer product to me :) Thanks for letting me know about this little nugget, though, maybe I'll get it for myself -- there are times when I feel like interviewing perfect strangers, so this might work for it. 48kHz 16 bit stereo PCM is 0.73 GB per hour, assuming 5% overhead. A 32 GB card is more than a day of continuous recording, should be plenty enough.
Be honest because honesty leads to goodness, and goodness leads to Paradise. Beware of falsehood because it leads to immorality, and immorality leads to Hell.
Generally speaking, claiming oneself to be a believer in Islam while being an obsessive liar is a bit of a problem. I guess politicians have their own way of redefining whatever "religion" they associate with... And, before anyone chimes in with the obvious, the below doesn't really apply because Iran is not Microsoft. They don't need Microsoft-style made-up plane FUD for any reason -- most readily because no one who is ostensibly the target of such fairy tales ("westerners") would take them on face value.
He is not a false person who (through lies) settles conciliation among people, supports good or says what is good.
The above quote applies, among others, when you tell a little kid "good job" when they still relatively speaking suck at whatever it is that they are doing. You might argue that fake PR is good for propaganda and for giving the Iranians a sense of pride. Well, careful there, because history tends to uncover such lies with relative ease, and all it does is breed hatred among the people. I'd have thought it easy to understand, but, well, it's the politicians we speak of here. They have their own logic :(
You're silly. These days it'd be way cheaper to have an engineering intern get a development kit of some sort, and turn it into a portable recorder/player. There are plenty of CPU development kits with decent audio A/D and D/A on board or pluggable via USB. Plenty also have SD card slots. You could probably make a decent player/recorder using a beaglebone with a USB audio I/O device, a couple buttons, a small display, and a battery pack. Probably $300 for the whole thing, plus intern's time. It really makes no sense to look for an on-the-market device of such a sort unless it fits the bill perfectly. Maybe there are such things out there... Who the heck will buy an obsolete device that you need to put work into for any sort of software support -- no point at all. Put the work into the new thing.
Her steering column wasn't adjusted properly. If she's short, she absolutely needs a car with adjustable steering column. I'm very sorry but an el-cheapo from Detroit doesn't cut it for everyone. I'm sorry about your sister, but that's not normal for an airbag deployment. I'm about 175cm tall and I've been both in a frontal crash at roughtly 60 km/h and a T-bone at 50 km/h. I didn't even have a headache, but then those were Volvos.
I had a T-bone and I vividly remember my shoulder and head being pushed into the air bag by inertia. If it wasn't for the air bag, I'd have at least bruises and a concussion, perhaps a broken collarbone, and who knows about a cracked skull.
And how's that wrong? Pension is deferred compensation. It's what they rightfully earned.
You need a lawyer for that. It may not even be that expensive.
Airbags killed more than they saved? Man, you had me up till there. You're so wrong...
Exactly. And when you get a billion of those imperfect leaky transistors on a chip, suddenly a big chunk of power gets wasted right there -- to a point where not only you can't ignore it, but it defines the limits of what you can achieve. Leakage is a big problem these days.
In modern small geometry chips, the leakage current starts to drive thermal/power performance, last I heard :( So no, you don't need very little current. Yeah, maybe per transistor, but you get a billion of them, and suddenly leakage plays a major role even if the clocks are stopped.
Oh yes. A DDR3 device datasheet is more complex than that of quite a few peripheral chips from the 80s.
Exactly. For a decent 150nm process I think you can keep the leakage at microamps per a million transistors, or did I get that wrong? Alas, for a 30nm process, it's like 4-5 orders of magnitude worse.
Except that the smaller geometry CMOS you use, the higher the leakage current. In modern CPUs, the leakage wastes on the order of 10% of power IIRC, perhaps even more. As you go down to single dozens of nanometres, the leakage takes over dynamic current consumption -- IIRC, of course.
FPGAs essentially have "gates" that are not merely gates but small look up tables (LUTs), they also have storage elements, some dedicated arithmetic units for DSP (powerful ones do that), and a whole bunch of routing resources. If you want programmable logic of any sort, you'll need all that no matter what technology is used to reprogram the transistors. An FPGA usually has either internal or external configuration source (FLASH, a download from a CPU, etc.), and a volatile configuration storage that's attached directly to the transistors/gates to control their operation. Magnetic technology there would merely reduce power consumption by those volatile configuration storage elements. It'd not reduce the need for wiring the write elements for those configuration storage bits into a memory array of some sort, and any sort of magnetic technology would probably occupy way more space per bit of configuration data due to the size of the write elements - unless you can somehow make a multi-layer design where the circuitry for the write elements doesn't take up real estate from underlying CMOS circuitry. Sure the storage elements may be tiny, but the write elements needed to flip their magnetic state will not be so tiny, even if done using MEMS techniques. That's what I make of it.
Most Dysons have a foam motor prefilter and a HEPA postfilter. The HEPA filter is rated for life, and the prefilter has to be cleaned every couple of months. In my experience in heavy household use, the postfilter's life rating holds up so far. It looks dirty on the inside, clean on the outside, so it works fine. Those filters remove probably way less than 0.01% of the contaminants by weight from the airflow. Otherwise they'd be plugged solid in a matter of minutes. Just read about what happens when the inter-level seal on the bottom of the canister was failing in a batch of their vacuums -- it was so bad that the 2nd level cyclones were getting plugged solid, never mind the prefilter. The HEPA postfilter is useful at removing the carbon brush dust :)
For the Euro market, they could have designed three level hierarchy of cyclones and dispensed with any other filters, as there's enough power available from the outlet to deal with the dissipation in such a filtering system. What they've done instead is they designed for U.S. marked, with its usual limitation of 1440W available from the electrical outlet (they could have made a 14.5A device if they wanted to push it, but didn't and settled on the usual 12A rating). In Europe you have 3kW available and you can make some fancy vacuums with that much power available.
I have made a very nice sawdust extractor using 6 Dyson canisters as the first 2 stages of filtering, with a custom third level cyclone (81 cones) that obviates the need for HEPA filters. It runs off a 4kW motor with a multi-stage turbine (from an industrial compressor, I think it has 6 or 8 stages) and the exhaust air has a barely detectable wood smell. There are no other filters - I've run it for a while with a HEPA prefilter to the turbine, but since it was clean after a month of use, I took it out as it was pointless.
You don't dig what they have done, do you? Regular fans have a low-frequency noise related to the blade frequency. It's the "omph-omph" sound that you get with helicopters as well. Dyson has traded off this low frequency noise for higher frequency scream of the ducted fan. I have no idea how stupid one has to be to think there's no fan involved at all...