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Comment All of these concerns would be moot with DC. (Score 1) 579

(Note, this is more of a stream of consciousness than an actual comment, so I apologize in advance if this sounds ADD-ish)

Get rid of the bulky, loud transformers and phase shifting coils and cap banks. Run -12KVDC to -20KVDC over the residential feeder lines down to neighborhood-located equipment with switchmode buck converters to give -240VDC and -120VDC to homes via their usual 3 mains wires, and a fourth wire for homes who wish to feed power back into the local grid via switchmode boost converters. The power transformer boxes on the corner of every block will contain high-frequency switching equipment and a few batteries (for keeping the block lit during upstream switching events and outages) instead of 2000-pounds of copper and laminated steel. The neighborhood substations will have their giant transformers and oil-filled breakers and phase compensating equipment replaced with IGBT-based switch stacks and intelligent converters that quickly compensate for changing load and back-feed conditions completely silently. Managing connections between substations and the high voltage grid will be an order of magnitude simpler and safer when all you have to worry about is matching the voltages within a few percent and measuring static currents after connections are made, rather than comparing frequency, phase angles, and power factors. With today's "modern" AC grids, you're liable to blow fuses/breakers/transformers if you connect two independently-fed parts of the grid together without first matching phases and frequency.

I know it's just too late for the change from AC to DC in the home to be practical. The biggest, most power-hungry devices just don't have an "upgrade path" to DC: Air conditioning and refrigeration compressors, fan/blower motors, fluorescent lights would all need complete replacement with DC-compatible equivalents. It would have been better if appliance manufacturers had designed their devices to be run off either types of mains from the start... Large, high-torque brushless DC motors are quite cheap now, and switchmode power supplies are now smaller and cheaper than 60HZ AC power transformers, and many of them will actually work equally well being fed by 120-240VDC.

Comment Transfer switches, batteries, and inverters, oh my (Score 1) 579

Automatic transfer switches eliminate any danger of locally generated power being fed back into the grid if there's any sort of danger in connecting the two. The electric company would only have to tell home owners to employ transfer switches in order to stay connected to the grid (with the only side effect being that they can't contribute excess power back to the grid)

My local utility company actually employs smart meters that can monitor both grid-side and home-side circuits for dangerous conditions in cases where there's a grid-tie inverter in the home. The smart meter instantly disconnects the home from the grid if there's an excessive surge in current being fed back into the grid (by analyzing the voltages, transfer current, and phase angles of both sides). The same meters also communicate with the utility company over a combination RF and powerline-based data transmissions, eliminating the need for guys to be dispatched monthly to read everyones meters.

In other news, you can buy a good charge controller, a 50KWh bank of deep-cycle batteries, a 2KW inverter for lights and outlets, and a 12-KW inverter for air conditioning, all for about $12K. This setup can run A/C for 5 hours a day and your only reliance on the grid would be to top-off the batteries on dark days.

If you have the means to get off the grid, by all means, you should, because most electric companies don't care about anything but profits.

Comment Does DJB insist that the library ... (Score 3, Insightful) 140

Does DJB insist that his crypto library gets installed under /var/lib? He's always insisted that his qmail binaries get installed under /var/qmail, and had everyone I know in the unix admin/engineering field shaking their heads, knowing that having executables and libraries on the /var filesystem is retarded and dangerous.

Medicine

Artificial Blood Made In Romania 232

First time accepted submitter calinduca writes "Artificial blood that could one day be used in humans without side effects has been created by scientists in Romania. The blood contains water and salts along with a protein known as hemerythrin which is extracted from sea worms. Researchers from Babe-Bolyai University in Cluj-Napoca, Romania, hope it could help end blood supply shortages and prevent infections through donations." Wikipedia's entry on hemerythrin explains its unusual oxygen binding mechanism.

Comment Re:damn philanthropists (Score 4, Insightful) 406

Regarding your statement, "But this is typical of the Progressives, they don't mind when it is THEIR guy mucking up the politics."

It's typical of _everyone_ in politics, _everyone_ in the media, and _everyone_ with an agenda. Don't blame just one party when _everyone_ is doing it. It's human nature to deny the guilt of yourself and the people you associate with when the goal is to discredit or disarm a group with opposing views.

Comment At what scope of time or size of output data? (Score 4, Insightful) 240

At what scope/scale of time or range of values does it really matter if a PRNG is robust?
A PRNG seeded by a computer's interrupt count, process activity, and sampled I/O traffic (such as audio input, fan speed sensors, keyboard/mouse input, which I believe is a common seeding method) is determined to be sufficiently robust if only polled once a second, or for only 8 bits of resolution, exactly how much less robust does it get if you poll the PRNG say, 1 million times per second, or in a tight loop? Does it get more or less robust when the PRNG is asked for a larger or smaller bit field?

Unless I'm mistaken, the point is moot when the only cost of having a sufficiently robust PRNG is to wait for more entropy to be provided by its seeds or to use a larger modulus for its output, both rather trivial in the practical world of computing.

Comment Re: Shoot first (Score 0) 871

Spoken like a true Libertarian. I'm surprised you didn't pull "authoritarian", "fascist", or "statist" out of your hat.

Society prospers when individuals work towards the prosperity of the societal unit, as well as their own being. When you stop caring about the greater good, what good are you to your country?

Would you rather just be an isolationist and give the rest of the world the finger?

IOS

Apple Starts Blocking Unauthorized Lightning Cables With iOS 7 663

beltsbear writes "Your formerly working clone Lightning cable could stop working with the latest iOS update. Previously the beta version allowed these cables to charge with a warning message but the final release actually stops many cables from working. Apples Lightning connector system is locked with authentication chips that can verify if a cable is authorized by Apple. Many users with clone cables are now without the ability to charge their iPhones."

Comment Re:How close to 100% is the Windows 7 percentage? (Score 4, Insightful) 246

As an IT manager who oversees deployment and maintenance of about 60 desktops and laptops, some of which are shared among multiple employees, consistency in OS availability for the end user is key. We upgrade one or two machines per month, and we started using Windows 7 three years ago, so about 15 systems still run XP. We're not touching 8.1 until there are no more XP systems on our network, AND people show interest in actually using 8.1, AND at least one service pack has been released to address outstanding issues since its public release, AND we discover a way to disable the "Tiles" start screen. Supporting systems with two different desktop interfaces is a serious pain in the ass, especially for non-technical users. So far, only two people have shown interest in using Windows 8 (techie geek types), and the vast majority of our employees are averse to changing their OS at all.

I've had to customize Windows 7 a bit to make it "comfortable" for the lowest common denominator: Long-time XP/2000 users.

Communications

Encrypted Email Provider Lavabit Shuts Down, Blames US Gov't 771

clorkster writes to note the following explanation posted to the front page of encrypted email provider Lavabit: "'I have been forced to make a difficult decision: to become complicit in crimes against the American people or walk away from nearly ten years of hard work by shutting down Lavabit. After significant soul searching, I have decided to suspend operations. I wish that I could legally share with you the events that led to my decision. I cannot. I feel you deserve to know what's going on--the first amendment is supposed to guarantee me the freedom to speak out in situations like this. Unfortunately, Congress has passed laws that say otherwise. As things currently stand, I cannot share my experiences over the last six weeks, even though I have twice made the appropriate requests.' No doubt this has much to do with Snowden's use of the provider."
Data Storage

ZFS Hits an Important Milestone, Version 0.6.1 Released 99

sfcrazy writes "ZFS on Linux has reached what Brian Behlendorf calls an important milestone with the official 0.6.1 release. Version 0.6.1 not only brings the usual bug fixes but also introduces a new property called 'snapdev.' Brian explains, 'The snapdev property was introduced to control the visibility of zvol snapshot devices and may be set to either visible or hidden. When set to hidden, which is the default, zvol snapshot devices will not be created under /dev/. To gain access to these devices the property must be set to visible. This behavior is analogous to the existing snapdir property.'"

Comment Does this mean we could possibly have CONTROL? (Score 3, Interesting) 99

Does this mean developers might actually implement 'MUTE', 'FORCE STOP', or 'RESTART' context menu items for shockwave apps? I despise going to read a page with ads and other shockwave sidebar widgets that make noise or chew up CPU cycles and have no way to pause/mute/stop them. It also bugs that you must reload the entire page to get a flash app to restart.

It's beyond me why Macromedia/Adobe never wanted us to have those essential controls. The only thing we get, in some rare cases, are the ability to prevent the app/player from looping, or to turn down rendering quality.

Patents

Apple Loses Patent Case For FaceTime Tech, Owes $368 Million 139

beeudoublez writes "Apple was ordered to pay $368 million today to a software company named VirnetX over patents related to Apple's FaceTime technology. Apple engineers testified they didn't pay attention to any patents when building FaceTime. 'The jury, which had sat through the five-day trial, ruled that Apple infringed two patents: one for a method of creating a virtual private network (VPN) between computers, and another for solving DNS security issues. ... It's not the first time VirnetX has won a payout from a major tech firm: the company bagged $105.7m from Microsoft two years ago, and it may not be the last either. VirnetX has a separate case against Apple pending with the International Trade Commission and it has court cases against Cisco, Avaya and Siemens scheduled for trial next year.'" It's not all bad news for Apple today, though — according to Ars, they've won a new patent for a rounded rectangle (D670,286).

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