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Comment Re:What Voltage? (Score 3, Informative) 219 219

DC can be problematic in that you can't always detect certain faults as there is not ground fault current, so there is inherently some greater chance of something like a bad connection overheating and causing damage, but that should not really be a concern if stuff is quality and installed correctly.

There's no connection between ground faults and bad connections that might cause overheating. But to the extent that DC systems might have lower voltage and therefore higher current, bad connections ARE more likely to overheat and cause fires. Also, there's no reason a properly installed DC system can't have Ground Fault Interrupters, although the ones currently used for AC won't work on DC. The ones designed for DC would be somewhat more complex, and probably bigger as well.

Another note: interrupting Direct Current without arcing can be difficult. AC has a zero crossing that extinguishes an arc across switch contacts, whereas the equivalent DC circuit may continue to arc across switch or relay contacts. Such switches and relays typically have heavier contacts and the contacts, when open, tend to have more space between them. The may also have permanent magnets nearby to act as 'blowouts' to extinguish any arc that develops.

Comment Re:What Voltage? (Score 4, Interesting) 219 219

Voltage doesn't kill; current kills and power burns. Higher voltage means lower current, and the same power.

Higher voltage only means lower MAXIMUM current, and then only if you assume constant power. However, it doesn't take much current to kill a person, and most real-world power sources can deliver enough current to kill under the right circumstances. (A mostly-dead flashlight battery can stop your heart if you bury electrodes deep enough in the right part of the body Also, think of Tasers - basically, low battery voltage raised to the point where it can stun or kill). Higher voltage usually makes death more likely, given the (approximately) constant resistance of a given current path through a body; I=E/R, so if E, (voltage) goes up, so does current. (Unless you're talking about static electricity from your clothing, or some other source which has high internal resistance/impedance and/or a small quantity of charge). And at still-higher prolonged voltages, the body's resistance can drop dramatically as parts of it start to boil and carbonize).

Your heart will fibrillate at 50mA AC or DC...

No. AC at a low enough frequency, (and at a surprisingly small current) will make the heart fibrillate; DC simply locks the heart muscle into a prolonged contraction. That's why defibrillators use DC - they temporarily 'freeze' the motion of the heart and give it chance to stop fibrillating and start beating normally.

Comment Re:Existential threat is more likely (Score 1) 83 83

Is it my imagination or is the US government/society incapable of functioning without an imaginary boogeyman? Be it terrorists, communists, drugs, witches, rapists, etc. Although, admittedly, how else do you unite a society without common traditions or culture without constructing an external threat?

We have always been at war with Eastasia!

Comment Re:Interesting in the report (Score 2) 550 550

They mention plans to sell Slashdot Media and SourceForge... Then the rest of the financial report only talks about Slashdot Media and nothing about SF...

Slashdot Media comprises both Slashdot, (this site) and SourceForge, so yes, they are planning to sell both. I don't think that means that both divisions will necessarily go to the same buyer; heck, Dice might not manage to sell either division, never mind both of them...

Comment Buy a small lake, (Score 4, Insightful) 550 550

then piss in it every day for three years or so, and invite your corporate buddies to do the same. Wonder why fewer and fewer people come by for a swim, and why you can't make any money from fishing in the lake. Sell it, probably at a loss, and move on to your next 'conquest'. Way to go Dice!

Comment Still a problem more than a year later? (Score 2) 147 147

FTA: "So the issue isn't so much that there is no acknowledgment that there is a problem; rather, the vendors have been pointing fingers about whose problem it is for over a year, without progress made on the actual resolution."

Finger pointing or not, it's hard to believe that it could take that long to address the issue. Even if they can't get their shit together to fix the fundamental problem, couldn't they at least kludge in a piece of gateway software that would intercept the USB port data and raise the difficulty level of gaining access and exiting kiosk mode? That, plus actual lock-and-key protection of the port, (and maybe a retrofit of a custom connector that would make it even more difficult to make the physical connection), would buy them a lot of time to get through the exercise of deciding who's going to fix the REAL problem.

Speaking of fixing the problem - I know the answer to this, but I have to ask anyway: What happened to the practice of just fixing it because you can, and because it makes you look good, without regard to whose fault the problem was in the first place? They could have had this taken care of inside two weeks - maybe a month at the outside - if they weren't playing juvenile schoolyard politics.

Comment Re:Root your device. Do not purchase locked device (Score 1) 202 202

Thanks emil, I'll try those things. I already set the perms to 000, and that didn't work, but I've never heard of the 'immutable bit' before - have to check that one out. Can I do it from Root File Explorer, or do I need to get to a terminal?

I'll try the folder idea first, as it's easy and I've previously used it on my Linux boxen to get rid of the 'Recently Used' file.

Comment Re:Root your device. Do not purchase locked device (Score 2) 202 202

Even root access won't save my HTC Desire 510. Whenever I mount the system as read-write and remove files, (such as Facebook and Twitter .apk and .odex files), or even change files, (such as that stupid MP3 the phone plays while the screen says 'Quietly Brilliant'), HTC oh-so-helpfully restores them for me at the next cold boot, whether or not there's any network access. I'd love to install Cyanogenmod, but there's no fully functional ROM available for my phone.

Comment Fine should be bigger (Score 1) 83 83

Add a zero to the dollar amount of the fine, and you're finally out of the 'Cost of Doing Business' category and into bottom-line devastation that will command the attention of both C-levels and shareholders. The government needs to grow a pair and serve notice to industry that business-as-usual just won't cut it.

Comment Now it's official (Score 1) 132 132

The possibility of a well-rounded education for middle- and lower-class citizens is dead - long live job training for the masses! Henceforth public schools will be mass-producing pliant and compliant workers-to-order for a private sector that is clearly salivating at the prospect of a cheap and almost limitless local pool of labour. After all, why go to the expense of bringing H1-B workers into the country when they can simply whore the existing US labour market? Making use of desperate people with few options who are within easy reach, are in tune with the local culture, and speak English natively, is just good business sense. And if there aren't enough such people to fill our needs, the government and its agencies will be only too happy to create more of them!

I really didn't write this with the intention of flamebaiting or trolling - I'm just thoroughly pissed off at corporate greed, arrogance, and callousness.

Comment Gee, I'm really torn... (Score 5, Interesting) 129 129

On the one hand, fraudsters who steal phone users' bandwidth in order to reap revenue from advertisers, are scum.

On the other hand, so many advertisers are scum as well, and the enemy of my enemy might be my friend. I might be willing to lose a bite out of my data cap in order to stick it to advertisers. Oops, did I say that out loud?

Comment Re:Valasek and Miller are assholes and should be a (Score 2) 173 173

Thanks - those are all good points. Except the 'underestimating the lengths' part. We have more than a decade's worth of news stories about people who have gone to great lengths to hack hardware and software - sometimes because they want additional features, sometimes out of malice, and sometimes just to prove a point. I figure by this time there's no excuse for underestimating what people will do. I think you hit the nail on the head when you suggested cost as the reason.

"It's what you learn after you know it all that counts." -- John Wooden

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