Beta
×

Welcome to the Slashdot Beta site -- learn more here. Use the link in the footer or click here to return to the Classic version of Slashdot.

Thank you!

Before you choose to head back to the Classic look of the site, we'd appreciate it if you share your thoughts on the Beta; your feedback is what drives our ongoing development.

Beta is different and we value you taking the time to try it out. Please take a look at the changes we've made in Beta and  learn more about it. Thanks for reading, and for making the site better!

Comments

top

Project Aims To Build a Fully Open SoC and Dev Board

AdamHaun Re:Where are those chips baked? (47 comments)

But then I wondered -- what actually was the motivation for this all out Open Source SoC?

There have been a few projects like this posted to Slashdot over the years. For some people, it's like climbing Mount Everest -- "because it's there". Some people want to extend the open hardware community down into chip design, possibly encouraging new start-up companies. (lowRISC seems to be in this category.) And some people think the semiconductor industry is a stagnant patent-choked wasteland in need of a Linux-style revolution. (These people are idiots, and do not know anything about hardware manufacturing or the semiconductor industry.)

The big thing I don't understand is why they all want to make chips with high-performance CPUs with tons of modern peripherals. Okay, I do understand -- they want to run Linux on their product. But what's wrong with making an AVR clone? Surely it would be much easier and much cheaper to make an 8- or 16-bit CPU with a few low-end comm peripherals on an older process? Is making a fully open hardware Arduino somehow less of an accomplishment?

Regardless, none of these projects have succeeded yet, because making an SoC is much harder than making software. From easiest to hardest, the main obstacles to making an open IC product are: development skills, design tools, prototyping and manufacturing costs, testing, and logistics. I'm not an expert on the full process, but I can try to give an overview:

* Development skills: Designing high-quality digital integrated circuits, even with an HDL, is not trivial. You need people with EE or CE training, not just basic programming skills. Hardware has non-ideal behavior that must be accounted for in the design. It's also not cheap, so the design needs to (mostly) work the first time. This means you need real expertise, not just random volunteers. lowRISC has some experienced people (although not in IC design?) running it, and they're hiring a couple of EE Ph.Ds right now.

* Design tools: You can edit an HDL with a text editor, but physical design and simulation require nasty, expensive, proprietary software packages from companies like Cadence or Mentor Graphics. These are not cheap, so you won't be running a copy at home. Your work will happen at an organization with money, like a university or corporation. lowRISC is a nonprofit associated with the University of Cambridge, so they can probably negotiate lower rates.

* Prototyping and manufacturing costs: You can prototype an IC design on an FPGA, but large FPGAs are pretty expensive. Again, you'll need money for this, thousands of dollars per FPGA board at least. At some point, you'll want to make real hardware. You might be able to get a few prototype units for tens of thousands of dollars, but for real manufacturing in a modern process you'll need a proper mask set. This will probably be on the order of $500k. Small revisions (metal-only) will cost perhaps a tenth as much. If you need to move transistors around, you'll have to go through the physical design process and pay the full ~$500k again. An important side effect of this is that most design bugs will be fixed in the physical layout, not the HDL. This requires expertise, and you'll need to design for the possibility in advance. After all that, you'll have to spend thousands of dollars per wafer for manufacturing, plus more for testing (see below). lowRISC's nonprofit/academic status will help reduce these costs, and obviously they're getting funding from Cambridge and maybe their founders.

* Testing: Even if your design is perfect (and it never is), you will need to test and qualify the hardware before you can sell it. This is where open IC projects fall flat, because nobody even talks about testing. You'll need to include test features like ATPG in your design, probably using even more expensive design tools. You'll also need to write test cases for functional verification, and generate test patterns for your automated test equipment (ATE). Once you've made the tests, you'll need equipment and personnel to run them. This costs more money. For qualification (making sure the hardware doesn't break the moment it gets out the door), you'll need to make and test (at least) thousands of units, preferably from multiple wafers with process variations. You'll also need to work on test time reduction and yield improvement once you reach production. lowRISC does not mention testing at all. They do say they plan to go from test chip to production silicon in one year, and that they're expecting to "yield around 100-200k good chips per batch [of ~25 wafers]". So maybe they have a plan, or maybe they're paying someone else to handle all the DFT design and testing aspects. (I'm not sure I'd call that "open hardware", though.) Since this is a nonprofit/academic project, their early customers may not expect any real quality assurance.

* Logistics: Once you're shipping units in production, you need to do all the boring (yet vital) business stuff like managing your cash flow, making sure orders ship on time, handling customer complaints, adjusting your price over time, making sure you don't break any laws, etc. This requires a full-time staff, at which point you're not really a community project anymore. lowRISC is already an organization with a staff, so this shouldn't be a huge problem for them.

They have very little information posted so far (not even a feature list), but lowRISC seems to have a few things going for them. They're not begging for money. They can get academic discounts. They're aware that they need serious expertise. And they're only aiming for the moon instead of the Andromeda Galaxy. I'm not holding my breath, but they might have a real chance. I wish them the best of luck.

about two weeks ago
top

Project Aims To Build a Fully Open SoC and Dev Board

AdamHaun Re:linux (47 comments)

As a practical matter, a mask set at 40nm costs around $60k

Maybe one mask costs $60k, but a mask set? I think you left off a zero.

about two weeks ago
top

Writer: Internet Comments Belong On Personal Blogs, Not News Sites

AdamHaun Re:Jezebel? (299 comments)

Jezebel, as a site, has been known to pander to fairly extreme, militantly feminist views

You're kidding, right?

Jezebel is lightweight. If you want to complain about militant feminism (which is pretty silly to begin with), at least find an better target.

about two weeks ago
top

Writer: Internet Comments Belong On Personal Blogs, Not News Sites

AdamHaun Re:Don't allow jpg or gif or ... (299 comments)

Whether you agree with the politics of a particular site or not, the easiest solution is just to not enable posting graphics. If someone wants to make an offensive graphic and host it somewhere, fine. But why would anyone running a controversial site allow posting such?

People like posting funny animated GIFs in the comments. Losing that capability hurts the users. But image-posting isn't the problem.

The real problem on Jezebel (as described in its article but strangely ignored in the NY Mag article and the Slashdot summary) is that Gawker/Kinja allows anyone to create a burner account and post comments, but there's no IP logging or blocking. There is literally no way to block an abusive user from commenting short of manually banning each new burner account after it posts. This is supposedly to allow anonymous "tipsters" to provide information. As a practical matter, it means the Jezebel editors are having to wade through 4chan-style images on a daily basis to keep a clean comment section. Would you like it if your job forced you to look at 4chan? No, you would not. Hence their complaint.

about two weeks ago
top

Reversible Type-C USB Connector Ready For Production

AdamHaun Re:One of the most frustrating first-world problem (191 comments)

Look on the bright side - with Type-D they'll figure out how to go reversible and genderless and then we'll be done for good.

Along those lines: the "gendering" (sort of) of USB was deliberate. USB is a master/slave protocol with a host that supplies power and a device that (optionally) consumes it. The cables were designed to prevent people from connecting two hosts together and shorting out their power supplies. The newer USB On-The-Go (OTG) standard allows two hosts to connect using special connectors (micro-AB) to control power switching and a connection protocol for deciding which end is the master, but it's pretty complicated and requires analog voltage measurement. Fun to have on a smart phone, but massive overkill for most devices.

about two weeks ago
top

Sexual Harassment Is Common In Scientific Fieldwork

AdamHaun Re:Some people are jerks (362 comments)

First, let me say that I was talking about workplace harassment. I failed to specify that in my comment.

When I say that the organization is the first responder, I don't mean they're the first, last, and only. People can always call the police (or file a lawsuit), and obviously if your organization covers for harassers then that's the next step. But escalating to the courts is expensive, time-consuming, embarrassing, often bad for your career, and nowhere near certain. Even in severe cases, the police often don't take rape seriously. It seems like the best we can do is have a multi-tiered system of shared responsibility.

about a month and a half ago
top

Sexual Harassment Is Common In Scientific Fieldwork

AdamHaun Re:Some people are jerks (362 comments)

Because I don't see how, if something is already illegal, it also needs to be against "policy". Do all company/university policies have to comb through the entire legal code and duplicate it in policy?

I can think of four reasons:

1. The organization's management is usually the first responder for harassment issues. They're responsible for bringing the people together, they have the authority to set limits on their behavior, they have the ability to monitor and follow up, and they probably know the situation better than law enforcement does. If the harasser needs to be separated from their victim, the easiest way to do that is to fire/expel or relocate them.

2. Not every illegal act can affect your job (or university enrollment). You wouldn't expect to get fired or expelled for speeding, would you? Having a harassment policy makes it clear that harassing your fellow employees/students can get you disciplined or fired.

3. Harassment policies don't just forbid harassment, they also provides rules and procedures for responding to harassment. Illegal or not, wrong or not, the most common response to harassment complaints is to sweep them under the rug to avoid disturbing the status quo. Even well-intentioned managers don't necessarily know how to handle a complaint without training.

4. Having a strong and effective harassment policy with backing from management affects workplace culture. The default attitude in a lot of places is that making other people uncomfortable for fun is no big deal, even if they repeatedly ask you to stop. A harassment policy says otherwise, encouraging victims to report instead of keeping quiet or leaving.

about a month and a half ago
top

Wireless Contraception

AdamHaun Re:Good lord (302 comments)

The same ignorance you claimed was responsible for high birth rates in impoverished areas. How does a chip give them more knowledge? That was a rhetorical question, the answer is that it does not.

Of course it doesn't. Where are you getting this? Contraceptives are what people get educated *about*. Nowhere in the article or my comments did anything say otherwise.

The "evil that are already happening" gains more power with this type of technology.

You... don't actually know anything about the problems women face in the world, do you? You might want to do some reading, or better yet, talk to some actual women.

Straw man, it has nothing to do with the points, which is that this technology puts the option for birth control in the hands of a person other than the recipient of the birth control.

You haven't made any points because you haven't given any way in which subdermal chips are different from other contraceptive methods, or what revolutionary new methods of force they allow. I don't think you understand how hormonal contraceptives work at all, otherwise you would recognize that this technology is an incremental change from what is currently possible. Let me spell it out for you.

Hormonal contraceptives work by regulating the hormones involved in the menstrual cycle. The hormones vary naturally over the length of the cycle, but you can boost them to a consistent level by providing more externally. This basically tricks a women's body into thinking it's pregnant, which prevents ovulation. (There are some variations; this is the simple version.) For our purposes, we're interested in how the hormones are delivered. There are many options, each with their own mix of benefits, challenges, and side effects. Below, I've listed the ones I see in the 19th edition of Contraceptive Technology by Hatcher et al. There are probably more.

* Pills taken once a day
* Patches worn on the body and replaced weekly
* A plastic ring inserted into the vagina and replaced monthly
* Shots given once every three months
* A thin plastic rod inserted under the skin and replaced every three years

Another major option is a T-shaped piece of plastic inserted into the uterus, known as an intra-uterine device (IUD). There are two types -- one that releases copper ions to prevent fertilization (replaced every ten years), and one that releases levonogestral to do several different things (replaced every five years). IUDs are the most popular contraceptive method worldwide, but are less popular in the U.S. for historical reasons.

All of these methods are reversible, though they take some time to wear off. Subdermal implants and IUDs need to be removed by a doctor.

Now, let's look at the article to see what's different about the contraceptive chip. The article tells us a few things:

* Releases levonorgestrel daily
* Lasts 16 years
* Size: 20mm x 20mm x 7mm (vs. 40mm long x 2mm diameter for Implanon, the subdermal implant I mentioned above)
* Can be activated and deactivated through the skin with a wireless signal.

We can also guess that no user intervention is required once the device is implanted. Medically speaking this is a good thing, because one of the big problems with many contraceptive methods is compliance. It's easy to forget to take a pill, buy more condoms, or schedule an appointment for your next shot. An IUD or subdermal implant works automatically.

Clearly, the biggest difference is the wireless control. However, in order to have that control the chip still has to be implanted, just like Implanon or an IUD. The key point here is that if you want to prevent pregnancy, the chip is *functionally identical* to those other options. Later, if you want to become pregnant again, the chip is *easier to turn off* since it doesn't require a doctor to remove it. So if it's no harder to disable pregnancy and much easier to re-enable it, then it becomes easier for an individual woman to make the decision for herself, not harder.

Even if all of the available doctors are controlled by an oppressive government, the chip is still no worse. At best, it will be easier for black market services to switch it on or off for you. At worst, it probably won't have any more side effects than the IUD you'd be forced into using anyway.

about a month and a half ago
top

Ode To Sound Blaster: Are Discrete Audio Cards Still Worth the Investment?

AdamHaun Re:My sound card is an A/V amplifier (502 comments)

My sound card is hooked up to an AV receiver that I used to drive my 5.1 home theater speaker setup (Energy CB-20s and CB-10s, if you're curious). It works pretty well, but there a is a downside, which is that the digital processing in receivers creates audio lag. If you're really sensitive to lip sync, you might want to consider other options. I haven't found a modern receiver without lag yet, but I haven't looked very hard.

about a month and a half ago
top

Wireless Contraception

AdamHaun Re:Good lord (302 comments)

Claiming that ignorance can be fixed by continued ignorance from a different party is a fools prospect.

I'm not sure what ignorance you're talking about here. How are people going to be unaware that they've had a chip implanted under their skin that stops them from getting pregnant?

There are simply too many nefarious purposes for this type of technology.

But again, functionally, the birth control application isn't much different from a Depo-Provera shot or an IUD. The differences are A) it lasts somewhat longer, and B) you can turn it off without removing it.

If some dystopia decides that fertility is a reward, this technology allows that very easily.

We don't need to fantasize about what hypothetical dystopias might do -- we have an existing one to look at. In China, there are existing technologies that already do what you're talking about. They are backed up by fines and other punishments. Outside of China, trying to force surgery on an entire population is a risky move that could easily provoke a popular uprising. China spent decades under a Stalinist dictatorship before enacting the One Child Policy, and as such they are a pretty extreme case.

If another dystopia decides that soldiers should rape women but don't want pregnancy as a result, well, this allows that as well.

Do you know how hormonal contraception normally works? It doesn't take effect right away. You'd something high-dosage like a morning after pill or shot. Subcutaneous chips are designed to release low dosages over long periods of time.

Also, why would someone who's okay with institutionalized rape be worried about their victims getting pregnant?

I don't understand why you're more worried weird hypothetical dystopias than the kinds of evil that are already happening.

about a month and a half ago
top

Wireless Contraception

AdamHaun Re:Good lord (302 comments)

Sorry, perhaps I was unclear. I was responding specifically to your statement about family planning, not to the device described in the article. As for the device, it seems to be targeted at areas where people don't have good access to medicine (probably Sub-Saharan Africa), and things like regular birth control prescriptions or Depo-Provera shots aren't practical.

One could conceivably use this for forced birth control, but I don't see how it improves on forced sterilization or IUD insertion. Forced birth control is used to stop women from ever having children again, not to control fertility timing. Even in China they seem to rely more on fines and forced abortions than contraceptives. Also, lowering birth rates tends to make people wealthier and give them more free time, so if you want to keep your population poor and uneducated, forced birth control seems like a bad idea. And of course, outside of China and (apparently) Uzbekistan, it's forced pregnancy that's the problem, not forced birth control. I'd be more worried about this tech being used for psychiatric medications than birth control.

about a month and a half ago
top

Wireless Contraception

AdamHaun Re:Good lord (302 comments)

An international coalition of governments, companies, philanthropies, and nonprofits recently committed to providing family planning to 120 million more women in the world by 2020.

Of course those Governments, companies, and philanthropists know best how you should plan a family. Considering how the top .01% of the population (which includes those Philanthropists) control the majority of the wealth, they only have societies best interests in mind right?

"Family planning" is a euphemism for sex education and contraceptive access. Large parts of the world do not provide any sex ed to women at all, even basic stuff like giving them a heads-up before blood starts coming out of their vaginas. Even in the developed world there are many teenagers and young adults whose parents either don't know enough to help, don't want to help, or provide false information when it comes to sex. Family planning services give women the information and tools they need to make their own decisions. Oppression by elites in this context involves keeping women ignorant and afraid so they don't question traditional, patriarchal ideas. Family planning services are the opposite of oppression.

about a month and a half ago
top

Nathan Myhrvold's Recipe For a Better Oven

AdamHaun This is so bizarre I'm not sure what to make of it (228 comments)

The article footer implies that he's some kind of cooking science wizard, but I have trouble believing that Nathan Myhrvold has ever done more with an oven than toss a slab of meat in it. I'm no expert, but I've baked an awful lot of cakes, cookies, breads, and pastries, and I find this article very confusing:

Most of us bake, roast, and broil our food using a technology that was invented 5,000 years ago for drying mud bricks: the oven. The original oven was clay, heated by a wood fire. Today, the typical oven is a box covered in shiny steel or sparkling enamel, powered by gas or electricity. But inside the oven, little has changed.

Weird condescension towards "brick dryers" is a running theme of this article. To see how ridiculous this is, I invite you to consider a nineteenth century cake recipe with its many methods for determining correct oven temperature and shielding parts of the cake from the oven walls so that it bakes evenly. Turning a knob to set an arbitrary temperature, while imperfect, is a *vast* technological improvement over wood-fired ovens. (Remember: just because it's analog (or non-electronic!) doesn't mean it's not technology.) Likewise, the metal that the oven is made from represents thousands of years of technological advances in itself.

Preheating always seems to take an unreasonably long time because ovens waste most of the hot air they generate. The actual amount of energy required to reach baking temperature is quite small: Just 42 kilojoules will heat 0.14 cubic meters of air to 250 C. The heating element in a typical domestic electric oven supplies this much energy in a mere 21 seconds. Unfortunately, the heat, which originates in the heating coils of an electric oven or the burner of a gas oven, must pass through the air to get to the walls, and air is an awful conductor of heat, only slightly better than Styrofoam. Even worse, air expands when heated, so much of it flows out of the vent, heating the kitchen rather than the oven.

But the oven walls will heat the air anyway, so how much energy would we really save by heating the walls directly? Pre-heating is only a fraction of the oven's total operating time. And wouldn't an electric burner also produce radiant heat? And then a few paragraphs later:

As soon as you open the oven door to adjust or check on the food, nearly all the hot air spills out. The puny electric element or gas burner is no match for such large surges of cool air, so the temperature in the oven plummets, and it recovers slowly.

which is totally inconsistent with what he said earlier.

At 200 C or below, convection moves most of the heat. But at 400 C, radiant energy starts doing a fair amount of the heat transfer. At 800 C, radiation overwhelms convection. Why couldn’t we have an oven designed to cook primarily by convection at low temperatures that switches to radiant heating for high-temperature baking?

As others have mentioned, this is a Fahrenheit/Celsius error at best and a non-sequitor at worst. The highest normal baking temperature is around 500 F (260 C) unless you're going crazy with pizza. If the article's numbers are correct, we should totally ignore radiant heating! (I don't think they are.) And I'm not clear on how the oven is supposed to "switch" to radiant heating. If the walls are hot enough to radiate, you get hot air for free. If the air is hot, it heats the sides of the oven.

Myrhvold next dives into a laundry list of suggested improvements, which fall into a few categories:

1. Stuff that already exists, but is expensive.
2. Stuff that's not done because it's too expensive and/or inconvenient.
3. Complicated gimmicks that require recipe-specific behavior.
4. Star Trek.

And you’re not going to be able to stop a cook from opening the oven door on occasion ... But designers could prevent that blast of cold air by building a blower into the door frame that generates a “curtain” of air whenever the door is opened, retaining more of the preheated air in the oven. ... Designing one for an oven is trickier because the chamber is small and turbulent currents could do more harm than good. Still, it could be done.

Personally, I haven't found the occasional door-opening to be a big deal. It is discouraged for delicate foods like cakes. But clearly we need a complicated, expensive air curtain that either runs constantly or turns on in an instant. Nobody knows how to do it and it might be more trouble than it's worth, but Myhrvold is *sure* that someone (not him) will make it work.

I'm going to skip most of the broiler stuff since I don't broil, but a couple things stood out:

Electric broilers use bars or rods made from Nichrome, an alloy of nickel and chromium (and often iron) that heats up when electricity passes through it. With reasonable energy efficiency, electric broilers can heat quickly and reliably to temperatures as high as 2,200 C. Maximum settings are typically restricted to 1,200 C in order to extend the life of the heating element and avoid charring the food.

Nichrome melts at around 1400 C (2550 F). I strongly suspect this is another unit error.

You can make a broiler cook more evenly with a simple DIY project: Install some shiny vertical reflectors near the edges of the compartment. Another good way to ensure that food browns evenly under a broiler is to wrap the dish with a reflective foil collar. But why should you have to jury-rig a fix? It wouldn’t be hard for oven manufacturers to build reflective materials into the oven. Viking Range is developing stainless steel cavities that are more reflective, but they need better materials that are easy to clean and don’t discolor when heated to high temperatures.

Not sure if I should be more bothered by the idea of removing tarnish from my oven in order to cook, or "all it needs to work is a major advance in materials science".

But technology offers a fix here, too. Oven designers could put optical sensors in the oven chamber... And a camera in the oven could feed to a color display on the front panel ... a decent optics system ...

Let's talk about what "in the oven" means for electronics -- 250 C. Consumer-grade electronics stop working about 85 C (at best). Higher-grade stuff can go up to 125 C. Beyond that you're talking about serious high-reliability components. Maybe he wants some kind of fiber-optic feed? But that doesn't sound like "a decent optics system". And again, there's more cleaning, which nobody likes.

Even when perfectly calibrated, however, the standard oven thermometer has a big problem. Water evaporating from the surface of the food carries away heat, leaving the food cooler than the surrounding air. Scientists call this temperature at the surface of the food the wet-bulb temperature (that is, the dry-bulb temperature minus any cooling by evaporation). The lower the relative humidity, the more evaporative cooling, so the greater the difference between the two temperatures.

Because most of the humidity in an oven comes from the food, adding food to the oven raises the humidity and, therefore, the wet-bulb temperature at the food’s surface. This means that bigger batches bake faster. Did you burn the holiday cookies last year? Blame your oven’s ignorance of its own humidity.

Cookie dough is usually very dry. The water comes from the butter and the eggs. I know he's looking for something everyone makes as a rhetorical device, but it's still a sloppy and misleading example.

And while you’re at it, perhaps you could solve a related problem: the inadequate precision of the humidity- and temperature-control systems. Both temperature and humidity levels stray from the set points more than they should.

That's an obvious cost saving. It's a solution to a different problem.

Finally, Myhrvold reaches the place where he should have begun:

Some other interesting technologies that make ovens more useful are already on the market. Newer models of steam ovens by Wolf Appliance

This is where the article loses me. Convection ovens with steam injection are far beyond "brick dryers". They're also only a few thousand dollars, which is expensive but within the reach of a hobbyist. *This* is the state of the art in home ovens. Why did we start with low-end household models? People use those because they're cheap or because that's what their landlord provided, not because they're good. Nobody's going to get any of Myhrvold's fantasy features without massive cost reduction. So is this a speculative article about the furthest reaches of oven technology, or is it about practical ways of improving oven design? Despite tap-dancing past major technical obstacles, the article doesn't claim to speculate. From near the beginning:

Yet oven manufacturers could solve every problem with existing technology, if only they would apply it.

But on the practical side, here's the only mention of increased cost in the article:

An oven could be manufactured today that could incorporate many of the technologies now available and go a long way toward turning today’s mere brick dryer into a true food cooker. It would have wet- and dry-bulb temperature controls, better thermostats, probes to go inside food, and sensors that detect hot and cold spots. All these features would add just a few hundred dollars to the cost of the parts.

I don't know where he got that number from, given that each one of those features is only found in a commercial oven that costs thousands of dollars more than residential models. Regardless, even his lowball estimate is doubling the price of a cheap residential oven. And some of these new features are complicated for the user and break backwards compatibility with existing recipes.

Maybe I'm being too hard on the guy. I should probably have more patience with this sort of breathless "more electronics solves every problem!" attitude, especially since it helps keep me employed. But more electronics won't do anything about my landlord, and that, not theoretical oven design, is the biggest problem with most people's kitchen appliances.

(I still can't get over the "brick dryers" thing. Brick making is a big deal! Has Nathan Myhrvold done anything in his life as useful as making bricks?)

about 2 months ago
top

Unisys Phasing Out Decades-Old Mainframe Processor For x86

AdamHaun Re:what's the point anymore (113 comments)

I don't know much (ok, anything at all) about the Libre lines but the Dorado machines have some very unusual characteristics such as 9-bit bytes

Nice to know there's still some non-DSP hardware out there with oddly-sized bytes. Maybe not so nice if you have to develop for it, but it gives me examples to point to when people ask why C's data types are defined the way they are.

about 2 months ago
top

FWD.us: GOP Voters To Be Targeted By Data Scientists

AdamHaun Re:republican voters? (422 comments)

I, for example, would be OK with allowing just about ANYONE here as long as they are documented, aren't seriously ill, and either have a job waiting or valuable job skills.

So just about anyone, as long as they're the right socioeconomic class? That may not have been what you meant, but your totally subjective criteria all but guarantee that that's what you'll get. And that's exactly what I was talking about. What is it that's supposed to automatically make a poor person from Mexico a worse citizen than a middle class person from Australia?

Children of legal citizens or people with green cards, of course, are also OK.

Again, this may not have been what you meant, but tying citizenship to parentage is effectively reinventing the grandfather clause, which the fourteenth amendment was designed to prevent. And yes, there are people seriously trying to overturn the fourteenth amendment to help them deport the children of immigrants.

about 2 months ago
top

FWD.us: GOP Voters To Be Targeted By Data Scientists

AdamHaun Re:republican voters? (422 comments)

There is NO HOSTILITY TOWARDS IMMIGRATION. There is however hostility towards lawbreakers and those who ignore our constitution and borders.

Why is this simple fact apprently impossible for you people to understand?

Because there have been large waves of immigration many times in our country's history, and each time produces the same backlash with the same rhetoric. It doesn't matter whether the immigration is legal, what matters is that different kinds of people are moving into "your" neighborhood and changing it. You can see this right now in Europe with the backlash against legal immigrants from the Middle East. People don't get that emotional over abstract legal principles without an excuse.

It's always the same -- they're too poor, they're criminals, they're not learning English, they don't share our values, they don't understand democracy (i.e. they vote for the "wrong" party), they're out-breeding us, they'll destroy America unless we turn them back. Two generations later the immigrants' grandchildren have assimilated and are indistinguishable from the general population. Then the next wave comes along and the whole cycle repeats again. So far it's happened to the Irish, Italians, Germans, Eastern Europeans of all sorts, Chinese, and probably others -- pretty well everyone except the original British colonists, and you know how *they* got all that land...

about 2 months ago
top

Latin America Exhausts IPv4 Addresses

AdamHaun Re:Why not an address market? (197 comments)

One of the problems with IPv4 address exhaustion is that routing tables become very complex. Having everyone try to glom a dozen random /24s together to make their local networks will not help.

Also, this is an exponential growth situation, so stopgap measures won't buy much time anyway.

about 3 months ago
top

The Coming IT Nightmare of Unpatchable Systems

AdamHaun Re:The poster is showing his prejudice. (240 comments)

I deal with them by having my household accessible on the Internet.

Sorry, I suppose I wasn't clear. Internet-controllable major appliances are a very new thing. Business travel is not. How were you dealing with these problems five or ten years ago?

Maybe you're having lots of problems from my appliances, but the rest of the 'net seems to cope just fine. I suggest you look over your own setup before you start blaming me for your havoc!

I specifically said in my reply to you that this isn't a problem with you personally, but rather with large numbers of appliances being sold to large numbers of people, many/most of whom will not maintain and protect the networked parts properly.

about 3 months ago
top

The Coming IT Nightmare of Unpatchable Systems

AdamHaun Re:The poster is showing his prejudice. (240 comments)

Why should I spend the effort trying to guesstimate when I will come home from a service trip to Asia which will take me between one and three weeks, to have the thermostat scheduled at the most likely time? And what do I do if I guess wrong, and have to stay another two weeks?

Then you either have a minor increase in your electricity bill or you're a bit warm for an hour or so while your house cools down.

Why should I carry that inconvenience just because you feel my thermostat does not belong on the Internet?

Because many of these new unpatched network devices will be wreaking havoc on the rest of the internet. (Perhaps not yours personally, but you're not the only person in the world.)

How are you dealing with all of these problems now? Clearly you're able to function today. Although this:

I have no friend or neighbour who I trust to come by.

is a pretty big problem and seems like way more of a danger than bad weather or network attacks.

about 3 months ago

Submissions

AdamHaun hasn't submitted any stories.

Journals

top

The Museum of Slashdot Ignorance

AdamHaun AdamHaun writes  |  about a year ago

This post will hold links to the most aggressively ignorant comments I run across. It's just a petty way of venting my frustration.

Comments may be modified for formatting or to include context, but all quoted text is from the original threads.

Latin America Exhausts IPv4 Addresses
Re:Y2K

Y2K was never a legitimate problem. Computers have no problem going from Dec 31st, 1999 to Jan 1st 2000. The only problems are constructs of human representation of time, like seeing "1/1/00". Is that 1900 or 2000!? We have no clue! But we do, actually, just like we knew '99' meant "1999" and not "1899". It was sensationalist bullshit that only caused headaches in the tech industry because stupid people were making a big stink out of it, so we had to go around slapping "Y2K Ready" stickers on everything to assure them the world wouldn't end. The *real* legitimate problem with time will occur in 2038, and we've already made the solution to that. Computers that are old enough to suffer that problem will hopefully not be maintaining some necessary piece of infrastructure.

The Sci-Fi Myth of Robotic Competence
Re:Things are a lot more complicated

For example, suppose there is a car full of 5 kids stuck on a railroad track. Should your robotic car push the kids off the track, endangering it's own two occupants? Or should the car back away and let a third car, on the other side containing just one person attempt to move the trapped car? These are all questions real life people have to solve - and the owner of the car should have some say in what value the car places on their own life.

If robots are ever remotely competent enough to realize any of these situations, they will never get into these situations to begin with. A robot approching a railroad track would scan for the train then roll across with enough momentum to make it to the other side should the engine fail. Do not sacrifice a roder to save two -- follow the rule of "tough shit" and let engineers do a post mortem. Seriously, the people are stuck on the track for a reason -- some engineering or manufacturing flaw, or being lazy about car mainetnance. They are guiltier for their own situation than someone else who happens along. How dare there be a simple-minded numerical analysis. This is why I am opposed to the law busses must stop to check for a train. Has anyonr bothered to check if a bis stopping, then stalling as it pulled ahead, increased the rate of hits rather than decrease it? Ironically, this exact law is the bill in question in "I'm just a bill". People pass a law and damned be any outcomes change analysis.

[Naivete, judgemental sociopathy, assumption of expert ignorance, and spelling errors aside, the Schoolhouse Rock segment "I'm Just a Bill" describes a federal law that was never passed.]

Peanut Allergy Treatment Trial In UK "A Success"
Re:Standard practice...

Correct. But I suspect the hurdle here was to isolate the allergenic factor and administering it correctly. It is not as simple as splitting a peanut in 70 parts: you have to find the right protein, isolate it and dose it. It can be a bitch to do. The results prove that the protein was the right one and that the doses were ok. Finally, the treatment does not work with any substance: there are things that will remain lethal whatever happens as our immune system just cannot catch them. So that is another good news.

No you don't. You could just use ground peanuts.

Physicists Discover Geometry Underlying Particle Physics
Nobody reads the classics (+2, Informative/Interesting)

"Physicists have discovered a jewel-like geometric object that dramatically simplifies calculations of particle interactions and challenges the notion that space and time are fundamental components of reality. 'This is completely new and very much simpler than anything that has been done before,' said Andrew Hodges, a mathematical physicist at Oxford University who has been following the work. The revelation that particle interactions, the most basic events in nature, may be consequences of geometry significantly advances a decades-long effort to reformulate quantum field theory, the body of laws describing elementary particles and their interactions. Interactions that were previously calculated with mathematical formulas thousands of terms long can now be described by computing the volume of the corresponding jewel-like "amplituhedron," which yields an equivalent one-term expression."

These things come up every so often and it always makes me facepalm in a RTFM moment. It is as if none of these advanced physics and mathematics people have ever read or understood why mathematics and physics was invented in the first place. The Greeks invented it to study forms, geometric at first, learning quickly that so much of our human perception is illusion based on these forms. Only later did abstraction of these forms come to be through a great many expressive number systems that have never stopped increasing in complexity to think that analytical quantitative thought has become bloated and inefficient compared to its forgotten origins.

Another excellent example is ignorance on Descartes. Mathematicians and physicists use Cartesian coordinate systems so frequently but have completely neglected the rest of the work by the man that invented it. Temporal relativity, the atomic idea of time later 'pioneered' by Planck, and time itself as merely a manifestation of the flow of consciousness within it can all be attributed to Descartes, but all that Oxford cares of him is his pretty graphs.

If people so high would have taken the time to learn why these thoughts and tools came to be instead merely how to use them, human understanding could be centuries more advanced. Instead we have to reinvent and rediscover ancient issues over and over with new tools designed to solve different problems in ways that require different efficiencies.

Researchers Develop the Most Detailed Map of Gravitational Variations Ever
Don't know their science (+2, Informative)

From the article: That means a 100kg person weighs 700g more near the North Pole, where gravity is 9.83ms-2, than at Peru's Nevado Huascaran summit, where gravity is 9.76ms-2.

They are implying that mass is a function of gravity. Everybody who has had the most basic fundamentals of physics knows that mass doesn't change, only weight(measured in newtons)

Ocean Plastics Host Surprising Microbial Array
Credibility

"A surprising suite of microbial species colonizes plastic waste floating in the ocean, according to a new study. The bacteria appeared to burrow pits into the plastic. One possible explanation is that bacteria eat into the polymers, weakening the pieces enough to cause them to break down more quickly and eventually sink to the sea floor. While the microbes could speed the plastic's decay, they might also cause their own ecological problems, the researchers say."

And if anyone needed a reason that people don't take eco-nuts seriously, here it is. Here we have a nice sign that some crappy thing we're doing to the environment might be mitigated in some small way by Mother Nature, and the response is what? Not "great! let's spend time working on other problems!" it's "oh noes, we think there are just other problems we haven't discovered yet". Just be happy, once, that something is a good thing without always trying to find the lining of doom and gloom and people might not just treat you like the gloomy harbingers you are.

Another Study Confirms Hands-Free Texting While Driving Is Unsafe
Re:No shit

All of the [automobile crash safety] technologies you mention would increase rather than decrease accident rates. Something like anti-lock brakes would decrease it.

What??? In what insane, backwards form of reality do you exist, where airbags and crash-testing cause accidents???

I live in actual reality. In actual reality people modify their behaviors based on risk. Airbags, seat belts, crumple zones, more resilient car frames, etc. do nothing to prevent accidents. They make accidents safer. When accidents are safer people are more willing to risk them. When people are more willing to risk them, they act in ways that cause more of them. It's likewise true for technologies like ABS that do help avoid accidents, but at least there the riskier behavior is offset by the technology.

Linus Torvalds Promises Profanity Over Linux 3.10-rc5
Well...

Everyone has to have a hobby, right? Seriously though, who the hell cares if the RC is bigger than the one before it, or whether the changes are scattered everywhere? If there were any number of concerns that needed to be addressed before the next release then it wasn't ready to go in the first place. Just test the hell out of everything, make sure nothing is broken, and make sure that each change was necessary and correct. In short calm your tits and keep coding.

India's ICBM Will Carry Multiple Nuclear Warheads
bad idea?

Oh boy, 4 nukes that you only have to shoot down one time because they're all on the same missile. What a great tactical advantage...for the enemy. Sounds like a cost-saving measure to me, not an amazing advanced weapon.

Scientists Recover Wooly Mammoth Blood
Half life of DNA is 521 years...

The half life of all DNA is 521 years [nature.com]. What kind of 2-bit "scientists" are these that think they can clone an animal that died 10,000 years ago?

[The Nature link doesn't even support his statement.]

Google and NASA Snap Up D-Wave Quantum Computer
Re:Awesome (+3, Insightful)

"Quantum computer", "Google, NASA", "Artificial Intelligence", "Lab" Man, there's nothing in this story that doesn't sound awesome.

Except what they obviously intend to use it for - large scale decryption of SSL traffic so the data can be mined by Google (for profit) and the Government (to oppress).

[Paranoia aside, the article is about an adiabatic quantum computer, which cannot be used to break encryption.]

Mystery Meteorite May Not Be From Mercury After All
How did they come to that anyhow?

Seriously, why would they think they have any idea at all where it came from? Space is massive. There are chucks of rocks flying all over the place left over from the formation of our solar system. Not to mention other systems. We are blasted every single day with tons of space rocks. I am sure that there is a pretty high chance that none of it is coming from a planet but is rather coming from the millions of asteroids flying about. What, do they say, hey! this planet is also kinda that color, it must be from there since nothing else could possibly be that color also?

Modelling Reveals Likely Spread of New H7N9 Avian Flu
What happened to the last pandemic?

With all the crying wolf lately it's a wonder we still see these articles. What happened to SARS, did all five victims of the "pandemic" die without passing it on? H1N1 caused some sniffles. Donald Rumsfeld made a killing with his quack medicine while GSK fleeced the Brits out of a healthy chunk of their health budget during the swine flu hoax. Every year there's a new fake pandemic. Almost makes you hope the promised pandemic finally arrives to take out the idiots who keep pump-and-dumping their antiviral stocks.

Global Warming Shifts the Earth's Poles
All Just a SWAG

This about like predicting the direction an elephant is walking by calculating the effect of the mass of it's tail swishing back and forth on the overall mass of its body. Really, any calculations they attempt would be swamped by the chaotic nature of the earth. Just imagine all the variables they would have to account for. Now, multiply that by a few billion and you would still be clueless. They can write down all the numbers and formulas they want but it's still all nothing but a Scientific Wild Ass Guess. A guess with a built in bias to boot.

Slashdot Login

Need an Account?

Forgot your password?

Submission Text Formatting Tips

We support a small subset of HTML, namely these tags:

  • b
  • i
  • p
  • br
  • a
  • ol
  • ul
  • li
  • dl
  • dt
  • dd
  • em
  • strong
  • tt
  • blockquote
  • div
  • quote
  • ecode

"ecode" can be used for code snippets, for example:

<ecode>    while(1) { do_something(); } </ecode>