Quotulatiousness

November 19, 2012

Space-Age technology on Earth, but not so much in space

Filed under: Science, Space, Technology — Tags: , , , , — Nicholas @ 09:33

In The Register, Shaun Dormon explains why almost all the electronic components used on modern spacecraft, satellites, and the International Space Station (ISS) are actually not cutting-edge, top-of-the-line items:

I hate to say it, but most of what you think about space-age technology is a total fabrication. It’s the stuff of sci-fi.

Perhaps the biggest misconception of all is that spacecraft are equipped with cutting-edge computing platforms that any self-respecting technophile would commit unspeakable acts to get their mitts on.

If only. The fact of the matter is that even the most advanced chips up there were considered obsolete ten years ago down here. Although it’s true that in space no one can hear you scream, outer space is actually a very noisy place, electromagnetically speaking.

The computer on your desk is very unlikely to experience much in the way of EM radiation unless someone cuts a hole in the side of the kitchen microwave. Out in orbit, though, there are many sources of radiation, ranging from the relatively mundane stuff pouring out of the Sun and collecting in the Van-Allen radiation belts to more exotic things such as cosmic rays and other high-energy particles that cause so-called “single-event effects”.

[. . .]

The damage is cumulative. Individually, an impact causes the ionisation of a single oxide molecule present in the semiconductor. It’s not enough to cause instant failure, but as more and more impacts take place, the effects combine to significantly alter the electrical properties of the circuit until it can no longer function correctly.

More exciting dangers arise from exposure to gamma or cosmic rays. These ultra-high energy impacts cause localised ionisation which results in an unexpected flow of current. In the case of a lower energy event, this may result in a “single event upset” or “bit-flip”, and data corruption can ensue. These are not usually fatal to the system. No so the worst case “single event burnout”, which creates such high currents that the very circuitry itself is burned out almost instantaneously.

November 1, 2012

The development of personal computing

Filed under: History, Technology — Tags: , — Nicholas @ 09:09

At The Register, Tony Smith charts twenty significant items that lead to modern personal computers:

Personal computing. Personal. Computing. We take both aspects so completely for granted these days, it’s almost impossible to think of a time when computing wasn’t personal — or when there was no electronic or mechanical computing.

To get from there to here, we’ve gone from a time when ‘computers’ were people able to do perform complex calculations themselves, through mechanical systems intended to do the work for them and then to powered machines able to automate the process. These led to systems that could be programmed to perform not only mathematical tasks but to store and retrieve other forms of data, taking us right up to desktop devices for a one-on-one interaction with computing power.

Since then, that power has been compressed into smaller, more convenient packages: laptops, tablets and smartphones.

What a trip. In memory of the many people who have help us along, here then are some of the key stages of that journey, represented by the 20 objects that, to us, most embody the steps that brought us to where we are today.

It’s not a comprehensive list — and feel free to comment with the devices you think we should have included — but here are the first ten of our 20 items, from the early days up to the end of the 1970s. Part two will bring us from the 1980s to the present day.

October 16, 2012

Sorting out the real Ada Lovelace from the legend

Filed under: Britain, History, Science, Technology — Tags: , , — Nicholas @ 08:18

At The Register, Dave Wilby tries to get to the real contributions of Ada Lovelace:

Ada Lovelace is a compellingly romantic figure, irresistible in today’s age of equal geeky opportunities.

The daughter of “mad, bad and dangerous to know” Lord Byron, her mathematics-loving mother Annabella Milibanke purportedly beat the poet out of her with relentless studies in science, maths and logic.

A beauty enthralled by scientific progress, cut down in her prime after the publication of her most notable work, Lovelace is often easily romanticised and reimagined as a steam punk heroine spearheading female invention and scientific emancipation.

Such claims are sure to be made again with Ada Lovelace Day today.

This image is fanciful, though, and to the unfortunate detriment of her genuine contribution to British technology.

So what are the facts? What did Ada Lovelace really achieve? Did she outshine her female contemporaries in the scientific field? And what debt do today’s female scientists really owe her?

October 9, 2012

Gewirtz: The Windows 8 user interface

Filed under: Business, Technology — Tags: , , , , , — Nicholas @ 09:19

David Gewirtz is unimpressed with the Windows 8 user interface. To understate the case a wee bit:

… And that’s why, in pure analytical terms, one has to wonder what went through the (fill-in-the-blank) (fill-in-the-blank) misguided brains of Microsoft’s managers, analysts, and strategists when they decided to ditch the Start menu.

I finally decided to load the preview edition of Windows 8 and use it. And, despite the operating itself being a marvel of engineering, ease of use, speed, and underlyng functionality — I’m forced to say that it’s unusable for desktops out of the box. Un-frakin’-usable.

[. . .]

Microsoft, on the other hand, has decided that — rather than make some very minor interface nods to the billion or so users it has — it’s going to force everyone to change how they use their machines.

This is not change in a good way. It’d be as if Ford decided to yank out the typical comfortable interior of a car, and replace it with a motorcycle seat, handlebars, and control interface. One day, grandma would get up to go to work, get in her trusty Ford (which she’s been happily driving for decades) — and not know how to do anything!

Worse, since the motorcycle UI isn’t designed for the inside of a car, using it there would suck. People have tried it, and it’s amusing as an exercise, but it doesn’t really work.

Windows 8’s change to the Start menu is not amusing as an exercise. It’s an insult to all the billions of Windows users the world wide.

Here’s the thing. You get into Windows and it’s Metro. You click the desktop tile because you have real work to do — and you’re stuck. How do you launch apps? There’s no launcher or Start menu. If you don’t know to click in the corner of the screen, you ain’t doin’ nothin’. There’s no hint, no cue, no application, no Start menu. There’s nothing there, there.

September 20, 2012

Fixing Windows Update

Filed under: Technology — Tags: , — Nicholas @ 14:37

For the last several weeks, I’ve been having issues with Windows Update on my laptop. I’d been keeping the machine pretty much up-to-date with the latest patches up until late August, when one (or more) of the updates failed to install correctly. The symptom was that the machine would show that it was updating X% where “X” never changed from “0”. I even left it overnight a couple of times, just in case it actually did need more than 12 hours to install.

Fortunately, it is possible to roll back Windows Update changes to the last restore point, but it’s a huge pain — and not how you should plan to spend the beginning of every working day (unless that’s your job, I guess). I’d tried installing individual updates, but each one I tried gave me the same results.

Today, I noticed a link to a PC World article titled “A quick fix for problems with Windows Update”.

Unfortunately, these kinds of problems aren’t uncommon. And they aren’t limited to Windows repeatedly offering the same update; I’ve also had letters from readers who get error messages after Windows tries to update itself.

This can be a tricky issue to solve, but here’s a good place to start: Microsoft’s Windows Update Fix-it. This automated tool will scan your Windows Update configuration and repair any problems it finds, resolve any incorrect data locations, and re-register required services.

To my pleasant surprise, the utility seems to have done exactly what it says on the label: it’s fixed my nagging Windows Update problem.

September 18, 2012

Guild Wars 2 to be available on Mac OS X

Filed under: Gaming — Tags: , , , — Nicholas @ 08:39

ArenaNet just announced that they will be releasing Guild Wars 2 for Macintosh computers (so you Mac heads now have no excuse for not playing Guild Wars 2):

Today we’re happy to announce another major milestone in the development of Guild Wars 2: going forward, ArenaNet will also be supporting the game on Apple’s Mac OS X. The Mac Beta client is available immediately for all Guild Wars 2 players. It shares the same features and connects to the same live game servers as the PC client. Anyone who purchases Guild Wars 2 can now play it on both PC and Mac.

Bringing Guild Wars 2 to the Mac is huge for us, because it introduces the game to an entire group of players who are often ignored by game developers. The ability to play together with your friends is one of the underlying principles of Guild Wars 2, and providing a Mac client means that friends and guildmates can play together regardless of what operating system they favor.

August 23, 2012

Crisis malware is particularly capable of damage

Filed under: Technology — Tags: , , — Nicholas @ 00:03

John Leyden in The Register:

Security watchers have discovered a virus strain that compromises VMware virtual machines as well as infecting Mac OS X and Windows computers and Windows Mobile devices. It demonstrates previously unseen capabilities in the process.

The Crisis malware typically arrives in a Java archive file (.jar) and is typically installed by posing as a Flash Player Java applet to trick a victim into opening it.

The archive contains executable files targeting Apple and Microsoft operating systems; the malware is able to detect which platform it is running on and serve up the correct variant.

Once launched, the worm puts in place a rootkit to hide itself from view; installs spyware to record the user’s every move on the computer; and opens a backdoor to the IP address 176.58.100.37, allowing miscreants to gain further access to the machine, according to a write-up of the threat by Kaspersky Lab. The malicious code also, unsurprisingly, survives across reboots.

The Windows variant can kill off antivirus programs, log keypresses, download and upload files, take screengrabs, lift the contents of the user’s clipboard, record from the computer’s webcam and mic, and snoop on these applications: Firefox, Internet Explorer, Chrome, Microsoft Messenger, Skype, Google Talk and Yahoo! Messenger.

August 10, 2012

For you, is no Singularity

Filed under: Science, Technology — Tags: , , , , — Nicholas @ 11:25

Charles Stross linked to this article which points out that we’re not likely to experience the Singularity/Rapture of the Nerds/etc., and for good reasons:

Given that you are tech-savvy, by that point you have almost certainly come across the idea of the Singularity [1] as defended by futurists like Ray Kurzweil and Vernor Vinge. As a reminder, it is the notion that, when we are at last able to compile a smarter-than-human artificial intelligence, this AI will in turn manage to improve its own design, and so on, resulting in an out-of control loop of “intelligence explosion” [2] with unpredictable technological consequences. (singularists go on to predict that after this happens we will merge with machines, live forever, upload our minds into computers, etc).

What’s more, this seemingly far-future revolution would happen within just a few decades (2040 is often mentioned), due to the “exponential” rate of progress of science. That this deadline would arrive just in time to save the proponents of the Singularity from old age is just a weird coincidence that ought to be ignored.

Objection, your honor. As a scientist, I find the claim that scientific progress is exponential to be extremely dubious. If I look at my own field, or at any field that I am vaguely familiar with, I observe roughly linear progress — a rate that has typically been going on since as far back as the field’s foundation. “Exponential progress” claims are usually supported by the most bogus metrics, such as the number of US patents filled per year [3] (essentially a fashion utterly decorrelated from scientific progress).

And as somebody who does AI research, I find the notion of “intelligence explosion” to make exactly zero sense, for reasons reaching back to the very definition of intelligence. But I am not going to argue about that right now, as isn’t even necessary to invalidate the notion of the Singularity.

August 2, 2012

Charles Stross: Where Moore’s Law and Koomey’s Law interact

Filed under: Science, Technology — Tags: , , — Nicholas @ 09:32

On his blog, Charles Stross explores the long-term implications of Moore’s Law (the doubling of computer circuits every two years) and Koomey’s Law (the energy efficiency of computers doubles every eighteen months):

A couple of basic physical rules underly the dizzying progress in electronics that we have seen over the past fifty years. Moore’s Law, attributed to Intel co-founder Gordon Moore, postulates that the number of transistors that can be placed on an integrated circuit of constant size doubles approximately every two years. Originally coined in 1965, Moore’s law has run more or less constantly ever since. It can’t continue indefinitely, if only because we’re getting close to the atomic scale; a silicon atom has a Van der Waals radius of around 200 picometres, and to build circuits that mediate electron transport we need discrete atomic-scale structures. It is not obvious that we can build electronics (or other molecular structures) with a resolution below one nanometre. So it’s possible that Moore’s law will expire within another decade.

Having said that, predictions of the imminent demise of Moore’s Law within a decade go back to the 1970s. And if we can’t increase the two-dimensional structure count on an integrated circuit, we may still be able to increase the number of structures by building vertically.

A newer, and more interesting formulation than mere circuit count is Koomey’s Law, proposed by Jonathan Koomey at Stanford University: that the energy efficiency of computers doubles every 18 months.

This efficiency improvement has held true for a long time; today’s high-end microprocessors require far less power per instruction than those of a decade ago, much less two or three decades ago. A regular ARM-powered smartphone, such as an iPhone 4S, is some 12-13 orders of magnitude more powerful as a computing device than a late 1970s-vintage Cray 1 supercomputer, but consumes milliwatts of power for computing (rather than radio) operations, rather than the 115 kilowatts of the Cray.

Taking them together, what do these two laws imply about the not-too-distant future?

July 12, 2012

What happens when updates don’t

Filed under: Technology — Tags: , , — Nicholas @ 12:13

Over an hour, still no change. I have to assume that the computer has locked up at exactly the worst moment for it to do so: if I power it down, I’m risking it not being able to reboot.

My desktop (the one I’m using to update this blog post) had the same Microsoft patch applied, but took only a few minutes to reboot successfully. Can’t draw any absolute conclusions from this: although both machines are running Windows 7, they’re not the same version. The laptop is on Windows 7 Home Premium, and the desktop is running Windows 7 Professional.

Suggestions are welcome in the comments…

Update: Thanks to some suggestions from a much more technical person than me, I eventually persuaded the laptop to reject the Windows Update changes and revert back to the previous state. Now, of course, Windows Update is all up in my face about needing to apply some urgent patches… I’ll apply them one at a time (which will be a pain as each of them likely requires a reboot) until I find the one that was causing the freeze-up. It’s also possible that applying them one at a time may prevent the lock-up from happening.

July 5, 2012

What do software developers and predatory bankers have in common?

Filed under: Business, Technology — Tags: , , , , , — Nicholas @ 09:02

In his regular column at The Register, Matt Asay points out that using another company’s API can be a quick and easy way to get going, but it carries significant risks:

In tech today, it has become a truism that “if you’re not paying for it, you’re the product”. Somehow we have applied this wisdom to consumers without recognising that the same principle applies to enterprises and their developers. Recently, however, Netflix and LinkedIn have reminded us just how precarious it is to build on someone else’s platform — or API.

Paul Graham, one of the founders of Y Combinator, has described APIs as “self-serve [business development]”. It’s a great story: open and document your API and watch a thousand businesses bloom, bringing you cash and legitimacy. All of which may be true, if done correctly.

But the other side of Graham’s “business development” is the difficulty of predicting the business planning on the other side of the API. Twitter was pretty free with API access in its early days when it was seeking adoption rather than income. Now that the company has grown up and continues to tighten its grip on how and where users interact with tweets, Twitter terminated its tweet syndication partnership with LinkedIn and has promised to clamp down even more tightly on how developers use its API. Twitter is doing this because it can, as professor Joel West points out, but also because it must: its advertising business depends upon it.

So where’s the banking similarity come in?

There’s one other thing to consider, as venture capitalist Bill Davidow opines in The Atlantic, and that is the very real possibility that this API mercantilism is a sign of how the technology world is changing, and not for the better:

    At both Hewlett-Packard and Intel, where I next worked, money was important — but it wasn’t the top priority. The goal was to do the right thing and do it well. If you did that, over time, rewards followed and shareholders supported your efforts…

    Many other things have changed in the valley over the past five decades. I’ve become increasingly concerned about one thing that is seldom discussed: the valley is no longer as concerned about serving the customer, and even sees great opportunity in exploitation. We are beginning to act like the bankers who sold subprime mortgages to naïve consumers…

Or sold developers subprime APIs?

June 23, 2012

The Turing inquest verdict of suicide may not have been consistent with the evidence

Filed under: Britain, History, Law — Tags: , , — Nicholas @ 08:46

Brilliant mathematician Alan Turing died in an apparent suicide after undergoing chemical castration, but the inquest seems to have rushed to a conclusion:

At a conference in Oxford on Saturday, Turing expert Prof Jack Copeland will question the evidence that was presented at the 1954 inquest.

He believes the evidence would not today be accepted as sufficient to establish a suicide verdict.

Indeed, he argues, Turing’s death may equally probably have been an accident.

[. . .]

The motive for suicide is easy to imagine. In 1952, after he had reported a petty burglary, Turing found himself being investigated for “acts of gross indecency” after he revealed he had had a male lover in his house.

Faced with the prospect of imprisonment, and perhaps with it the loss of the mathematics post he held at Manchester University, which gave him access to one of the world’s only computers, Turing accepted the alternative of “chemical castration” — hormone treatment that was supposed to suppress his sexual urges.

It is often repeated that the chemicals caused him to grow breasts, though Turing is only known to have mentioned this once.

[. . .]

In his authoritative biography, Andrew Hodges suggests that the experiment was a ruse to disguise suicide, a scenario Turing had apparently mentioned to a friend in the past.

But Jack Copeland argues the evidence should be taken at face value — that an accidental death is certainly consistent with all the currently known circumstances.

The problem, he complains, is that the investigation was conducted so poorly that even murder cannot be ruled out. An “open verdict”, recognising this degree of ignorance, would be his preferred position.

None of this excuses the treatment of Turing during his final years, says Prof Copeland.

June 22, 2012

Microsoft Surface: “Lacking a physical product to test, all we can do is talk bollocks based on conjecture”

Filed under: Humour, Technology — Tags: , , — Nicholas @ 10:09

While I’ve been avoiding tablet computers, having an actual keyboard that can attach to a tablet makes it more like something I might be able to find a use for. In The Register, Alistair Dabbs explains why he’s already very fond of the announced-but-not-available-yet Microsoft Surface:

I don’t wish to suggest that Microsoft Surface is truly vapourware, but surely it’s suspicious that it’s announcing a product that no one’s going to be able to buy for half a year.

One supposes that Microsoft intends to create a buzz and get us talking about their forthcoming (new) foray into tablet computers. Yet the problem with jumping the gun — apart from the ‘false start’ accusations that lead on from this metaphor — is that commentators are left with a void to fill. Lacking a physical product to test, all we can do is talk bollocks based on conjecture.

This, as you know, is my specialty.

First, let me say that I don’t care a hoot about the provenance of the name ‘Surface’ — ho-ho, it used to be a table, so fucking what? Making fun of a name tells us nothing about the product.

Take ‘Metro’.

“We call it Metro because it’s modern and clean.” Oh, and here’s me thinking they called it Metro because it’s populated by young Algerians brandishing flick-knives and smells of wee. It’s just a word to put on the packaging and its actual meaning has no significance. After all, what does the word ‘pod’ have to do with playing MP3 files?

June 5, 2012

Stuxnet, Duqu, and Flame: joint US-Israeli projects

Filed under: Middle East, Military, Technology, USA — Tags: , , , , , — Nicholas @ 09:02

The US and Israeli governments have admitted that the Stuxnet, Duqu, and Flame malware infections were joint efforts:

American and Israeli officials have finally confirmed that the industrial grade Cyber War weapons (Stuxnet, Duqu and Flame) used against Iran in the last few years were indeed joint U.S.-Israel operations. No other details were released, although many more rumors are now circulating. The U.S. and Israel were long suspected of being responsible for these “weapons grade” computer worms. Both nations had the motive to use, means to build and opportunity to unleash these powerful Cyber War weapons against Iran and other that support terrorism.

The U.S. Department of Defense had long asked for permission to go on the offensive using Cyber War weapons. But the U.S. government regularly and publicly declined to retaliate against constant attack from China, mainly because there were fears that there could be legal repercussions and that weapons used might get out of control and cause lots of damage to innocent parties.

Iran turned out to be another matter. Although not a serious Cyber War threat to the United States, Iran was trying to build nuclear weapons and apparently Israel had already been looking into using a Cyber War weapon to interfere with that. Given the nature of these weapons, which work best if the enemy doesn’t even know they exist, don’t expect many details to be released about this Cyber War program. What is known is that the Cyber War weapons unleashed on Iran were designed to concentrate only on very specific targets. So far, only three weapons that we know of have been used. One (Stuxnet) was designed to do damage to one specific facility, the plant where Iran produced nuclear fuel for power plants, and atomic weapons. That one worked. The other two (Duqu and Flame) were intelligence collection programs. They also apparently succeeded, remaining hidden for years and having lots of opportunity to collect enormous quantities of valuable data.

May 6, 2012

Technology is not the panacea

Filed under: Education, Health, India, Technology — Tags: , , , , — Nicholas @ 10:06

I’m generally very pro-technology, but the One Laptop Per Child (OLPC) effort always struck me as putting the technology cart in front of the educational (and cultural) horse. A report at The Economist has examples of technological fixes that haven’t actually “fixed” the problems they were intended to solve:

The American charity has an ambitious mission — transform the quality of education in the developing world by giving every poor student a laptop. Targeting a $100 laptop, OLPC succeeded in creating a usable computer at a very low price point (the actual number was closer to $200). Unfortunately most of the attention in the project was focused on the technology and not enough on its efficacy. In the first rigorous evaluation of the programme, the Inter-American Development Bank (IDB) found little evidence that the laptops influenced educational outcomes. The study, conducted in Peru four years after the programme was launched, found no improvement in math or language. While the computers did lead to some gains in cognitive skills, the authors concluded that access to a laptop didn’t improve attendance. Neither did it motivate students to spend more time on their homework.

There is similarly disappointing news on cooking stoves. The World Health Organization estimates that indoor pollution from primitive cooking fires contributes to 2m deaths annually. One solution is to use clean cooking stoves. At a cost of $12.50, these stoves are an inexpensive way to reduce respiratory ailments and improve air quality. The Global Alliance for Clean Cookstoves (GACC), a public-private initiative, is making a big push for 100m homes in the developing world to switch to clean stoves by 2020. But a new NBER paper by Rema Hanna from Harvard University and Esther Duflo and Michael Greenstone from MIT, questions the long-term health or environmental benefits from this programme. The authors evaluated a clean-stove programme in eastern India, covering 15,000 households over five years. Their study found that after the initial year, enthusiasm for the stoves waned and households didn’t make the necessary investments to maintain them. As a result, the programme had very little effect on respiratory health or air pollution.

Both these projects highlight some common misconceptions in using technology for development. For one, solving intractable social problems requires fundamental changes in the target population. It also needs a supportive institutional framework to reinforce the right behaviour. Technology can complement this process, but it is no substitute for the human element. In Peru, simply adding laptops to the classroom, without investing in teachers who were proficient in computer-aided education, meant that the academic impact was limited. The IDB paper rightly points out that in poor countries where wages are low, development money may be better spent on labor-intensive education interventions than on expensive tools.

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