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Comment Re:where is your brain? (Score 1) 176

Are you actually asserting that demand is level 24 hours a day?

It can come very close.

In California, for example, a very large part of the demand is pumping water through aquaducts. By placing reservoirs along the way and doing most of the pumping during times of low electrical demand, California electrical utilities used to be able to keep the power demand nearly constant - and can still keep it much more level than in many other places.

Also: Coal plants can provide baseload, while wind and solar together do a great job of shaving peaks: Higher wind corresponds to higher HVAC load as well as higher generation. Solar not only tracks the air conditioning requirements but also comes close to tracking the daily load peaking - and solar plus wind tracks it even better, since the lake effect makes an afternoon-through-evening hump in wind generation.

at a power output proportional to the CUBE of the windspeed.

is this relevant somehow?

Yes, very. The steeply up-bending curve means that wind generators that are able to make use of high winds - which only happen for a tiny fraction of the time - have a peak power rating far above the average power they are able to produce in normal winds. So the peak power vastly overstates their average contribution.

Comment Re:Let me know when ... (Score 4, Insightful) 176

The power can be stored,

The issue is not that the power can be stored.

The issue is that power capacity comparisons overstate the total amount of energy you get out of the renewable generation equipment over the long haul because coal generation can run near capacity all the time and renewables (excluding water power) only a small part of the time.

I'm quite supportive of renewable energy. (I'm a major participant on one of the renewable energy tech discussion boards, too.) But while it's very GOOD that renewable power has passed coal in power capacity, even with near-ideal load-levelling storage, it will take about another factor of three before it surpasses coal in providing usable energy to the loads.

Comment Let me know when ... (Score 1, Insightful) 176

... they overtake coal for amount generated per unit time.

Renewables may have higher total peak, but coal plants have level output and can run 24/7, while sun is only about a third of the day and wind varies with the weather - at a power output proportional to the CUBE of the windspeed.


Largest Auto-Scandal Settlement In US History: Judge Approves $15 Billion Volkswagen Settlement (usatoday.com) 104

A federal just has approved the largest auto-scandal settlement in U.S. history, a $14.7 billion settlement concerning Volkswagen Group's diesel car emissions scandal. USA Today reports: U.S. District Court Judge Charles Breyer in San Francisco approved the sweeping agreement between consumers, the government, California regulators and the German automaker in a written ruling a week after signaling he was likely to sign off. He said the agreement is "fair, reasonable and adequate." The settlement comes about a year after Volkswagen admitted that it rigged 11 million vehicles worldwide with software designed to dodge emissions standards. The company is still facing criminal investigations by the U.S. Justice Department and German prosecutors. The U.S. probe could lead to additional financial penalties and criminal indictments. About 475,000 Volkswagen owners in the U.S. can choose between a buyback or a free fix and compensation, if a repair becomes available. VW will begin administering the settlement immediately, having already devoted several hundred employees to handling the process. Buybacks range in value from $12,475 to $44,176, including restitution payments, and varying based on milage. People who opt for a fix approved by the Environmental Protection Agency will receive payouts ranging from $5,100 to $9,852, depending on the book value of their car. Volkswagen will also pay $2.7 billion for environmental mitigation and another $2 billion for clean-emissions infrastructure.

Comment The issue isn't (just) speed - it's (also) range. (Score 1) 44

LTE is already pretty darn fast, so losing a little performance isn't going to make that big of a deal. It's not as if you can torrent to your hearts content without killing your cell phone bill.

The issue isn't just speed. It's also range.

At any given speed, the Qualcom can support it at substantially lower signal levels. 6ish dB in a lot of cases, a bit less in some, enormously more in others.

Look at the graphs in TFA. In addition to some specific pathologies that penalize the Intel chip farther, the bulk of the graph has the drop off looking similar but with the Qualcom shfited 5 or 6 dB to the right. (Those squares are 5 dB wide.)

6 dB is four times the effective signal strength, which corresponds to twice the range. That maps into four times the area served at that speed from a single cell tower (important in sparsely-served areas), deeper penetration into buildings and the like (in more heavily-covered areas). It can also map into more data pushed before a given area and channel allocation's bandwidth is saturated. 3 dB corresponds to twice the effective signal strength, 1.4ish times the radius, twice the area served.

If the modems were equivalent and the problem just the layout of the board and antenna, you'd expect the two curves to be the same shape but just offset. The shape is substantially different, so (board issues or not) something else is going on.

Comment Re:Bribe? (Score 1) 122

Why not both ?

As an aside, can you imagine the unholy shitstorm that would be making the rounds if any of this were happening to Apple ?

Exploding iPhones... The internet might not cope with that, and then Apple bribing people to keep quiet about the whole thing ? We might have a singularity event...

Comment REALLY? (Score 5, Insightful) 209

The crime is making orders with the intent to cancel before being fulfilled. ... The intent to cancel, in order to create a false market perception, is the crime. ... a pattern of cancelled-while-unfulfilled orders, combined with other orders that profit from the market perception that the unfulfilled orders create, is a very clear establishment of such intent.

Is it also an establishment of intent if you (as a large financial firm) deploy, in actual trading on real markets with real money, an algorithm that exhibits such behavior? If, in addition, you KEEP it deployed even after its behavior is noticed and complained about in public media of the sort likely to be read by trading professionals?

And it is something that the traders at Goldman Sachs can make a fortune without doing.

But it's something that they can make a BIGGER fortune by DOING. And something that can count toward the rise of individuals and groups through the corporate ladder and pay scale.

While don't recall if G.S. was specifically one of the organizations complained about (and am not going to spend the time right now digging through archives to check), I DO recall com"plaints about high-speed traders taking advantage of the cancellation features of the online market engines in just this way.

One of the advantages of shaving milliseconds off the communication delays and algorithms that was specifically mentioned (once the pattern was observed) was the ability to send an order and a cancellation in rapid enough succession that it could not be pounced on (and thus didn't really risk money), sending price signals that tricked competing, slightly less high-speed or well-tuned, algorithms into making other bad trades from which their operators lost and the perpetrators gained.

Submission + - Strange New World: Samba Server running on Windows ! (samba.org) 1

Jeremy Allison - Sam writes: "Do you know what this is? This is a non-Windows SMB file server running natively on Windows."

"To be more specific, this is a Virtualbox Ubuntu virtual machine running on Windows 10, grabbing a file across SMB from a Samba file server running inside the Windows Subsystem for Linux through Bash."

Comment Re: Has Wikileaks jumped the shark? (Score 1) 269

The only poll that showed that was the LA Times poll, ...

Which "that" are you referring to?

- If it's who's ahead, you have some point - though the USC Dornsife/Los Angeles Times "Daybreak" poll is NOT the only one showing Trump ahead by at least a small margin. (In fact it shows them neck-and-neck, crossing back-and-forth, and has Hillary up by 0.3% just now.)

- If it's how the musdslinging is changing the voters' preferences, it's not fully over that poll's one-to-two-week report delay + smoothing yet.

In particular (for both cases) I note that this morning's Rasmussen daily tracking poll has Trump slightly ahead AND is starting to have any dings to Trump from the spate of allegations within horizon. Yet they see no such dings (and comment about their absence in the accompanying analysis).

[USC/L.A. Times] is a bit notorious because it polls the same people at each iteration.

It's also notorious for being far more accurate when it comes to predicting both the winner and the margin. (The latter can turn into the former if the race is very close, as this one is.) That repeated sampling of varying subsets of the same group is a part of the methodology that they credit for avoiding certain distortions that affect other polls.

The rationalle is explained on their web site. Give it a look.

Comment Re:systemd (Score 3, Interesting) 78

Honest question: in what use case does systemd bother you?

I'm in a startup, still on angel funding and strapped for resources, building a multi-layered platform. One of the four-or-more layers is implemented on a machine about the power of a smartphone/credit-card-computer in the raspberry/beaglebone/etc. class. That layer needs an O.S., and it's internet-facing, so it needs to be secure - and auditable.

Posix-compatible OSes, such as Linux, should be ideal. But there's that little matter of being reasonably sure that they're not full of security holes or reliability issues, and doing so on a shoestring, using a handfull of people who have a LOT of OTHER stuff to do in order to get through the market window before the wolf gets to our door.

Even if systemd were solid as a rock and the best thing in init systems since pre-slicing was applied to bread, it's an extra complication - with its fingers in a lot of pies. That makes security auditing much harder and more time consuming. And THAT makes it "more expensive than money" for us - to the point that the current move of Linux versions to systemd may drive us to abandon Linux entirely for something else. (OpenBSD would be one contender. A plethora of other, stripped-down-to-minimal-functionality, OSes also come to mind.) (The main reason we haven't done so already is that we can't afford that effort, either, until our concept's proven and we must bite the security bullet in order to ship.)

One of the great things about pre-systemd Unix and unix-like systems was the design philosophy, which explicitly drove strong modularity, with simple modules that did single jobs and were easy to check - or encapsulate. (This was one of its big advantages over things like Windows, where all the apps were in bed with each other and any security hole in one became a security hole in many.) Systemd violates that philosophy.

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