Follow Slashdot stories on Twitter

 



Forgot your password?
typodupeerror
×

Comment Re:I know you're trying to be funny, but... (Score 2) 739

If you'd actually read the linked mailing list post (or even just read the quotes of it in the summary) you'd see that none of the abusive comments are aimed at people, they're aimed at the code. He calls the code a bunch of mean, nasty, insulting things, but he doesn't say anything about the people who worked or released that code. I think the distinction is important here. It's not abuse if there's nobody to be abused.

Secondarily: if you read the rest of the thread, he goes on to work with everyone very productively on tracking down the exact nature of the underlying bugs, posts deep analyses of the code generation differences, proposes a patch for his own kernel to work around this GCC bug, and goes and files the upstream Bugzilla report with the GCC team himself. On the whole I'd say this is pretty responsible and cooperative behavior.

What are you doing bringing objective facts into a Slashdot debate, I mean SWJdot?

Comment Re:FUD filled.... (Score 1) 212

It sounds like this transformer had its center tap grounded and was the path to ground on one side of a ground loop as the geomagnetic field moved under pressure from a CME, inducing a common-mode current in the long-distance power line. A gas pipeline in an area of poor ground conductivity in Russia was also destroyed, it is said, resulting in 500 deaths.

One can protect against this phenomenon by use of common-mode breakers and perhaps even overheat breakers. The system will not stay up but nor will it be destroyed. This is a high-current rather than high-voltage phenomenon and thus the various methods used to dissipate lightning currents might not be effective.

Comment Re:Death bell tolling for thee.... (Score 1) 322

Sure. Here's a transcript of the earnings call. (You may need to register to read it.)

Nadella does say, early on in his prepared comments, that, "We will streamline the next version of Windows from three operating systems into one single converged operating system for screens of all sizes."

Later during the Q&A session, however, he was asked about how this "one version for all devices" would change the number of Windows SKUs that are available, and he said this:

Yes. My statement Heather was more to do with just even the engineering approach. The reality is that we actually did not have one Windows; we had multiple Windows operating systems inside of Microsoft. We had one for phone, one for tablets and PCs, one for Xbox, one for even embedded. So we had many, many of these efforts. So now we have one team with the layered architecture that enables us to in fact one for developers bring that collective opportunity with one store, one commerce system, one discoverability mechanism. It also allows us to scale the UI across all screen sizes; it allows us to create this notion of universal Windows apps and being coherent there.

So that’s what more I was referencing and our SKU strategy will remain by segment, we will have multiple SKUs for enterprises, we will have for OEM, we will have for end-users. And so we will – be disclosing and talking about our SKUs as we get further along, but this my statement was more to do with how we are bringing teams together to approach Windows as one ecosystem very differently than we ourselves have done in the past.

Lots of hedging in there. You don't need a single, converged OS to give developers "one store, one commerce system, one discoverability system." Those are all ancillary functions. A "team with the layered architecture" doesn't sound like every version of Windows is going to share the same layers. And clearly nothing about Windows is going to be simplified from the customer's perspective; there will still be six or eight SKUs, with each offering different benefits.

Rather, I take Nadella's comments to mean he's streamlining the OS engineering group so that the people working on each Windows platform work in tandem with the others and they all have similar goals, milestones, etc (good).

I also take it to mean that Microsoft will offer developers who are building so-called Modern apps a common set of APIs that will be available on the various form factors, so they eventually should only have to write their apps once and they will run on every kind of device. That sounds OK, but it's only going to be true for Windows Store apps -- and to achieve that, you don't need every device to be running an identical OS.

In other words, no Holy Grail here, but Microsoft is streamlining and rationalizing its OS engineering efforts, which makes good sense at this juncture.

Submission + - Letter to Congress: Ending U.S. Dependency on Russia for Access to Space 1

Bruce Perens writes: I've sent a letter to my district's senators and member of congress this evening, regarding how we should achieve a swifter end to U.S. dependency on the Russians for access to space. Please read my letter, below. If you like it, please join me and send something similar to your own representatives. Find them here and here. — Bruce

Dear Congressperson Lee,

The U.S. is dependent on the Russians for present and future access to space. Only Soyuz can bring astronauts to and from the Space Station. The space vehicles being built by United Launch Alliance are designed around a Russian engine. NASA's own design for a crewed rocket is in its infancy and will not be useful for a decade, if it ever flies.

Mr. Putin has become much too bold because of other nations dependence. The recent loss of Malaysia Air MH17 and all aboard is one consequence.

Ending our dependency on Russia for access to space, sooner than we previously planned, has become critical. SpaceX has announced the crewed version of their Dragon spaceship. They have had multiple successful flights and returns to Earth of the un-crewed Dragon and their Falcon 9 rocket, which are without unfortunate foreign dependencies. SpaceX is pursuing development using private funds. The U.S. should now support and accelerate that development.

SpaceX has, after only a decade of development, demonstrated many advances over existing and planned paths to space. Recently they have twice successfully brought the first stage of their Falcon 9 rocket back to the ocean surface at a speed that would allow safe landing on ground. They have demonstrated many times the safe takeoff, flight to significant altitude, ground landing and re-flight of two similar test rockets. In October they plan the touchdown of their rocket's first stage on a barge at sea, and its recovery and re-use after a full flight to space. Should their plan for a reusable first-stage, second, and crew vehicle be achieved, it could result in a reduction in the cost of access to space to perhaps 1/100 of the current "astronomical" price. This would open a new frontier to economical access in a way not witnessed by our nation since the transcontinental railroad. The U.S. should now support this effort and reap its tremendous economic rewards.

This plan is not without risk, and like all space research there will be failures, delays, and eventually lost life. However, the many successes of SpaceX argue for our increased support now, and the potential of tremendous benefit to our nation and the world.

Please write back to me.

Many Thanks

Bruce Perens

Comment Re:Death bell tolling for thee.... (Score 2) 322

They're not talking about the interface. They're talking about the underlying nuts-and-bolts stuff.

No, they're really more talking about the interface. The underlying nuts and bolts are already pretty much the same, in that Windows, Windows RT, and Windows Phone all share the same NT kernel. But above that there is plenty that's different from platform to platform. What Nadella wants to do is unify the development model and allow developers to create apps with UIs that react and readjust depending on the screen size of the device they're running on, much like how modern websites can support multiple screen sizes. All this talk about "one version of Windows" stems from a single, oversimplified comment Nadella made on the earnings call. When asked about it later, he completely backtracked and said there would not be any such thing.

Comment Re:OK MS bashers. (Score 1) 322

I would hope this unification means that there will be suffice emulation built into windows that it will pick the kernel/libs/drivers required by the CPU arch, and userland apps can run in emulation (even if slowly) if they are compiled for the wrong proc. This would be a unified windows, that allows x86 and 64 bit apps run on ARM and vice versa (although the other direction is likely not as useful).

Unfortunately for you, the actual article says the exact opposite of the summary (so what else is new on /.?): Other than the kernel and the app development model, there will be no unified version of Windows. There will always be different flavors of Windows for different kinds of devices and even multiple SKUs of the same version of Windows for different markets (consumer, SMB, enterprise, etc.)

Technology

MIT Combines Carbon Foam and Graphite Flakes For Efficient Solar Steam Generati 110

rtoz (2530056) writes Researchers at MIT have developed a new spongelike material structure which can use 85% of incoming solar energy for converting water into steam. This spongelike structure has a layer of graphite flakes and an underlying carbon foam. This structure has many small pores. It can float on the water, and it will act as an insulator for preventing heat from escaping to the underlying liquid. As sunlight hits the structure, it creates a hotspot in the graphite layer, generating a pressure gradient that draws water up through the carbon foam. As water seeps into the graphite layer, the heat concentrated in the graphite turns the water into steam. This structure works much like a sponge. It is a significant improvement over recent approaches to solar-powered steam generation. And, this setup loses very little heat in the process, and can produce steam at relatively low solar intensity. If scaled up, this setup will not require complex, costly systems to highly concentrate sunlight.

Comment Re:Completly Blindsided. (Score 1) 285

The school district wasn't blindsided. The county was.

I work at a school district, so let me tell you how public schools get their Internet. Obviously it's going to vary, but from what I've seen our situation is the most common.

Every building in a district runs fiber between their buildings to a central building where the district's servers are kept. It could be in the basement of the high school or some administrative building, but that's what happens. It's easy enough for the district to do capacity planning. Each school district may then connect to an intermediate school district, but ultimately then connects to the county's municipal network. This network is the ISP that connects every municipal office, such as city, village, police, fire, public works, etc. to the Internet. In my state, Michigan, the county connects to a statewide municipal network originally put in place to connect the public universities to the proto-Internet for research (our ISP, Merit, was founded in 1966).

In this story, the problem is at the county level, the middle man between the school and the state-wide network. This is not particularly surprising, since since in every case I've seen, the county is a) poorly funded, b) poorly staffed, and c) tends to be forgotten about. When a neighboring district went 1-to-1 at the high school level with lots of online classes, they did reasonable capacity planning for the district's small network and quadrupled the bandwidth from the high school to the district servers, and the district to the county (the district consists of 3 buildings on the same plot of land, so it was fairly simple). What they didn't do was consider that the county level needed upgrades as well. My district is about 8500 students across more than a dozen buildings, and this was about 200 students in just one building (grades 9 and 10). They were using about 90% of the bandwidth on our connection. That district got moved to a different connection pretty quickly, but until then nobody in our district could use the Internet during the school day.

Comment Re:Evolution (Score 1) 253

I think it's more likely that more people are becoming obese because of exactly one factor: age. They are living artificially prolonged lifetimes due to access to adequate food and to medicine. It's easier to get fat when you are 50 than when you are 30 because of the natural changes in your metabolism.

Comment Re:Evolution (Score 1) 253

:-)

You make it sound like starving people are getting fat too.

If they are becoming obese, the particular individual has a surplus of caloric intake, if only for this year or month. This is not to say that they have proper nutrition. So I am not at all clear that the fact that there is obesity in the third world is confounding evidence.

Comment Evolution (Score 1) 253

For most of the existence of mankind and indeed all of mankind's progenitors, having too much food was a rare problem and being hungry all of the time was a fact of life. We are not necessarily well-evolved to handle it. So, no surprise that we eat to repletion and are still hungry. You don't really have any reason to look at it as an illness caused by anything other than too much food.

Slashdot Top Deals

Understanding is always the understanding of a smaller problem in relation to a bigger problem. -- P.D. Ouspensky

Working...