Archive for the ‘Essays’ Category

Where now for a liberal-leftie?

May 11th, 2010

So, the bird has gone to roost in the tree; it remains to be seen whether it will prune back the branches to make a nest, while proudly displaying its plumage, or if it will soon give leaf itself, and become indistinguishable from its new home. While the former situation may make me feel happier in the vote, it also increases the chance that tree and bird will fall out, possibly bringing the whole metaphor down with them.

When the prospects of a Liberal Democrat – Conservative coalition first began to become a practical possibility, rather than a theoretical one, I was initially horrified that the paint may have been flaking of my yellow vote to reveal the blue underneath. It was a popular sentiment. When I tweeted “If the Lib-Dems do team up with the Tories, it will be like a twist in a film when you realise one of the heroes is the bad-guy.” It was rapidly picked up and re-tweeted (forwarded) around the Twittersphere by over 160 people. Clearly many like me felt betrayed, and worried that all the talk of “A vote for the Lib Dems is a vote for the Tories” would turn out far more literally than they may have expected.

However, as time passed it became clear that options were few. While many of the left looked on at a prospect of a grand liberal coalition, the numbers would have been tight, and an already aggressive right wing press would have been attempting to destroy the coalition before parliament was even seated. It was also clear that several senior members of the Labour party were opposed to the proposition, raising the prospect that internal rebellion would seriously threaten the stability of an already precarious position.

The battle was enough to secure a key concession from the Conservatives though, matching Labours offer of AV. With that my most major opposition to the Lib-Con pact was abolished, although I hope the Liberals keep the pressure on to ensure that the changes go through. The situation wasn’t ideal, and I wasn’t about to pretend I was happy with it, but when the cards are dealt you have little choice but to play.

I still worry though. The Conservative party holds vastly more seats than its little pet bird, and I fear that they may get dragged into the fold. Sacrificing ideals for stability, for want of being heard, or for want of power. Furthermore, it is hard to deny the rightward drift of economic policy in the party over the past few years, and it seems possible that the shelter of the leafy boughs of the Conservatives will catalyse this further. Which leaves a problem, if yellow and blue become indistinguishable, either through incompetence or power-grabbing, where next?

Labour may seem an obvious choice, however their dubious record on civil liberties leaves me concerned. While a few back bench rebels still buck the authoritarian trend, the ability to vote for one of them will largely depend on which consistency I end up voting in.

The Greens are considerably to the left of most the mainstream parties, both socially and economically. However, the party occasionally allows its policies to be driven more by ideology than evidence, leaving a few dubious decisions in their science policy. Fortunately they do appear to be attempting to address these in response to criticism in response to their European Election manifesto. Additionally I can’t help but feel that some of their policies seem impractically naive, however this may just be a side effect of their considerable contrast from the mainstream parties. That said, after the election I discovered that my local Green candidate was following Ben Goldacre on twitter, something that had I realised before-hand would have likely persuaded to switch my vote to her.

So where does that leave me? If the AV vote system does get introduced, at least I will be able to vote for who I want, even if they are a minority party. I must admit I am unfamiliar with many of the other minority parties, although know I rejected the Scottish Socialist Party on the basis of their belief in an independent Scotland. (I rejected the SNP on similar principals) It also doesn’t help that most discussion of neo-liberal economics, Keynsian economics etc. just causes my brain to melt. To actually try and work out if it a) is ‘morally’ acceptable and b) will work, is sadly a bit beyond me.

And that’s that, an entry that tails of into navel gazing hand-wringing. How fucking Lib Dem of me. If you want to preach your party, you are welcome to do so in the comments. I’m genuinely interested.

(Note: First time comments will need to be approved manually. I’m not blocking, I’m just being slow.)

Tips On Finding Cheap Rail Tickets

Jan 3rd, 2010

Over the past four years I have been a regular user of the British rail network. During this time I have regularly been frustrated with the pricing, which can vary from guilt inducing cheapness, to exorbitantly pricey, even for exactly the same journey. Finding the cheapest tickets isn’t easy, and it seems that every time I’ve traveled home, or to see a friend I’ve had to use a different technique at reducing the price from something that makes me reconsider my plans, to something more affordable.

The following post was made by me on a message board, but I have reproduced it here in the hope that it may be of use to someone else. It already assumes that the reader is familiar with sites such as thetrainline and knows that advance purchase of tickets can save them a lot of money. Advance tickets are made available at some indeterminate time before travel and will often sell out quickly.

I’m assuming that when checking for advance tickets you are looking at the price for singles, rather than returns? If not you’ll want to do so, as thats where the savings are.

I’ve had a lot of experience trying to book cheap rail tickets, and it seems I’ve used a different method each time. However most of my tips are better suited for considering long distance travel. However, In case they are of use to anyone:

1) Megatrain.com is great for travel between major stations, assuming you are flexible about travel times. The also provide coach travel, which might be worth a look. Particularly consider it in concert with the next tip.

2) Split tickets. For reasons that are beyond me, cheap advance tickets aren’t always available for the entire route, even on services with no changes. Try looking at splitting the journey. I’ve always had most luck when splitting at major stations, such as Birmingham. I’m not entirely sure of liability should you miss a connection on a split ticket. You’ll obviously avoid this issue is the two tickets are for the same service, although it’ll require you to change seats. In other cases I’ve got an open return for the second half of the journey, which has been short enough that its not a significant enough cost.

3) Buy from the appropriate website. Thetrainline.com is great for finding tickets, but once you know who runs the service you need, try looking at the operators website, as they may offer discounts if you buy direct.

4) Keep an eye on prices. Tickets are made available three months before the date of travel, however the cheapest tickets will not be available at this stage. Instead, the train operator seals a cat in a box with a vial of cyanide gas, which will be shattered by a hammer on the decay of a radioactive isotope. On the death of the cat the train operator also releases the cheap tickets. However, as no one can know when the cat dies without opening the box they instead end up resorting to the point at which they know they’ll be able to annoy the greatest number of people possible. Co-incidentally this ends up coinciding with the point of radioactive decay, as physics is shifty like that. To avoid being disappointed, check regularly. The trainline can actually notify you for popular routes. Once the cheap tickets are out the prices will slowly tick up as each price point sells out, however on journeys with multiple routes different operators will make their tickets available at different times due to their use of different cats. I’m not sure how the hell you are supposed to deal with this. I just stop looking at the prices the moment I jump in to buy a ticket and remain in ignorance.

4) Be flexible. Make sure you check every time, and every route, because the cheapest tickets are elusive and like to hide.

5) A tip which is probably not available to you: Buy a Railcard. You’ll save 30% and can regain your investment. But remember, when searching for tickets to also have a look without your railcard. Some tickets are stubborn and are scared of discount cards. This’ll sometimes mean that you need to buy the tickets separately if the return is cheaper with a railcard. Also, while you only get a Young-persons railcard up to the age of 25, you can buy one on the day before your 26th birthday and it’ll be valid for a whole year.

6) Goat sacrifices may help your cause. However the public transport gods are fickle. Prices may go up, as well as down.

Edit: Just thought I’d clarify, that all by talk of the advance tickets being sneaky tricksy buggers was not exaggeration. Often I have sat back distraught, thinking I’ve exhausted all avenues and will have to pay almost £100 to get to see my family. Then, just as I’m about to give up and throw it all in a tiny change in search parameters, such as using a different website (despite the fact they all go through the same system) and then suddenly a ticket appears for a tenth the price, with no obvious rhyme or reason why it didn’t show up before.

Oh, and be wary of clicking ‘back’ once you’ve selected a ticket. I did that once, and it seemed that it allocated the last cheap tickets to me, and failed to release them when I went back to change seating preferences. I then had to wait a tense half an hour while the system sorted itself out, during which it would just produce an error if I tried to select said tickets, even from a different browser. Finally the system reset itself. Seemingly the tickets I was initially going for had sold out in the meantime, but the band B cheap tickets were available for only a couple of pounds more, instead of the £20 more of the standard tickets.

In addition to the recommendations here, I’d also suggest playing with some of the fare finding features over at nationalrail.co.uk, it requires a bit of patience, and doesn’t always make it apparent as to exactly when the cheapest tickets are available, but should give you indications as to what prices you can expect for the route.

In other news, I have take todays and yesterdays photos for the twenty ten photo project, however will be waiting until I get my desktop set up again before I upload them.

I invite any further tips in the comments.

Bean had?

Jun 9th, 2009

You may have noticed reports in several newspapers and tech sites today of the Heinz Beanzawave, a USB powered microwave. In total, according to Google News, the story appears to have been covered by over fifty different outlets including the UPI, CrunchGear, Cnet and the Daily Mail. Not to mention a number of popular blogs, such as BoingBoing. While some of these articles have users raising criticisms in the comments, none of the news sources I checked bothered to run a critical eye over the story. (If you find one, please post it in the comments so the good guys can get some acknowledgements.)

The news seemingly originated from a press-release form the ‘Microwave Association,’ working in association with Heinz. Unfortunately for fans of beans and fancy USB gadgets the story appears to be, well, a load of old beans1.

Even a quick critical eye will spot some key flaws. The average modern microwave has an output of 850W, with even weaker models outputting at least 650W. By comparison, the USB 2.0 standard provides a maximum current of 500mA, at 5V; which works out as a maximum power output of just 2.5W2. The former figures should be familiar to anyone who has cooked something in the microwave, as the output is printed on the front, and you are expected to adjust cooking times accordingly. The latter meanwhile should be obvious in part to anyone who has hooked up a printer. While simple devices like mice can obtain sufficient power from a USB socket, the same can’t be said for more power-hungry devices such as printers, which need their own power supplies. Indeed, the power supply units of most computers aren’t certified to deliver 850W of power, with possibly only high quality gaming rigs fitted with a hefty enough PSU; even then, powering a microwave would leave scant remainder for the processor and graphics card.

So we’ve already seen that such a device would have to operate at a significantly lower power output than most modern microwaves. Such a device would be unlikely to be marketed as a novelty, and instead would be positioned to replace most standard microwaves. However is it possible that such improvements have been made, and we are in fact looking at vastly superior technology. In short, not likely, unless they have also managed to break the laws of thermodynamics in creating this miracle microwave.

In demonstrating how truly impossible their claims are we need to consider some physics.

The specific heat capacity of a substance is used to describe how much energy is required to raise its temperature; for water, this is given as approximately 4.2 joules per gram per kelvin. This means that for every gram of water, you must supply 4.2 joules of energy, to raise the temperature by 1 kelvin, or 1 degree Celcius3. Therefore, for a 200g tub of beans (which we shall approximate by assuming it is all water.) it takes 4.2 x 200 = 840 joules to raise the temperature by a single degree.

So how does this translate to our microwave? Well fortunately, the measurement watts tells us how many joules of energy are transferred each second. In other words 1 watt = 1 joule per second. So if we are to assume that our microwave is 100% efficient, that all energy it uses goes directly into heating the beans, we can discover how long it will take to deliver the required 840((And here is a good illustration of the inefficiency of standard microwaves. As by this calculation the beans should be ready in just under a second.)) joules to raise the temperature of the beans by a single degree. Simply divide 840 by 2.5 and… oh dear… 336 seconds. Five minutes, 36 seconds to warm the beans by a single degree. If you want them boiling hot4, then you are going to be waiting over 7 hours.

What bothers me most about this story isn’t the dubious nature of the original press-release. It was clearly constructed by marketing bods in an attempt to gain free column inches. In that respect it worked, and I’m only adding to the effect by writing this. What bothers me is the way the press regurgitated it, unthinkingly, unquestioningly, delivering advertisements as news. Not only this, but it is clear that in most cases, they didn’t even stop to pass a critical eye over it. This isn’t just churnalism, this is factually incorrect churnalism. When the media sacrifices its credibility in terms of fact checking, and ends up falling slave to marketing, what does it have left? And when we lose one of the key methods of fact distribution, of investigation and exposure, what do we have left? Blogs and citizen journalism go so far, but an effective and trustworthy media is is important for everyone; this story is only one of many that makes me wonder how much of one we have left.

I have already contacted the Microwave Association in the E-mail provided in the press-release, and have invited them to respond. I’ll update this entry as soon if I hear anything from them, and leave the comments open if they wish to contribute there. (Although I encourage you do do so via my E-mail, as that way I can be sure the response is genuine. Also, please bear in mind that comments from new users will be held for moderation, and may not get published immediately.)

  1. See, you don’t have to be part of the tabloid press to make terrible puns []
  2. Power is the product of current and voltage []
  3. The scale of Celcius and kelvin is identical. Only the position of the zero position changes, with 0 kelvin being equal to -273.15 °C []
  4. Assuming room temperature 20 °C and a boiling temperature 100 °C []

Not in my name

Jun 9th, 2009

Sixty-five years ago 160,000 troops landed on the beaches of Normandy to drive back the forces of fascism, and to protect the freedoms that they held to be important. Thousands of others worked behind the scenes to provide the ships necessary to co-ordinate such an astonishing feat, not to mention those involved in the concurrent air assault.

On Sunday, the UK elected two members of the British National Party to the European parliament.

Already, many words have been written by people vastly more knowledgeable and articulate than me. Members of both the left and right have expressed the disappointment, anger, and sorrow at such an event. On Monday, and late Sunday, Twitter swarmed with people discussing the result and its implications, and for most of the day BNP was the top trending topic, with many other related terms putting in an appearance further down the list. Blogger Anton Vowl considered how some of the failures of New Labour led to this situation, not through any particular success of the BNP but through the apathy of other voters. Others, in their frustration, threw eggs.

I shall not be re-hashing these arguments. They are elsewhere and the points have been made. I shan’t be throwing any eggs, our position against the BNP is stronger than that; we don’t want to re-enforce their delusions of martyrdom. I will however say this: The BNP don’t speak for me. They claim they represent average Britions; I’m British, they don’t represent me. They claim they wish to make Britain great, but in doing so attempt to destroy the things I love about this country. We are better than this. The BNP may talk of “stemming and reversing the tide of non-white immigration” but they do not do so in my name. hnh

Anti-racism and fascism organisation, ‘Hope Not Hate’ is collecting signatures1 to deliver to the European parliament to show that the BNP do not speak for all British people. If you feel that the BNP do not speak for you, and wish to make your feelings known you can find the petition here.

  1. I sign this out of my own moral revulsions that I have become associated with these people by virtue of nationality. The petition is not an attempt to overturn the democratic process. []

On art and games [Part 3]

Feb 22nd, 2009

With the third part of this series we move away from the more chronological approach, to considering styles, techniques and more overarching concepts.

Games on Tour

While computer and video games have a huge, global market, it is not a homogeneous one. Regions differ in terms of platform popularity and genre preference, as well as far more abstract concepts regarding perception, and the way games are played. The popularity of competitive gaming in South Korea for example is a familiar example, with the proportion of those playing on-line games being over three times that of Europe1 . However these regional differences don’t only influence game popularity and availability, but also in some games game content.

The need to localize games to different markets should be obvious. Language barriers are the most apparent consideration, as games require translation of text in the interface, instructions and within the game environment itself, such as signs. As voiced dialogue becomes more common, this can add the burden of employing regional voice actors, a costly endeavour. There also considerations of differences in standards, such as PAL and NTSC, as well as possible regional legal implications. Given all this, it is understandable that many localisations will also consider issues cultural issues, both with regard to marketing, and general comprehensibility.

One of the most influential effects of regionalised graphics is the consideration of local rules regarding censorship in rating. Some countries have particularly harsh restrictions on game content, with Germany being an oft quoted example, and one which has been previously discussed on this blog. Such rules will often result in the censorship of violence, replacing people with zombies or robots, and turning blood green. In the case of Team Fortress 2, the German edition replaces the gibs (body parts left behinds after a kill) with balloons and other party paraphernalia, a feature included in other versions in the form of ‘party mode.’ In Germany, computer and video games are classed as toys, and are thus forbidden from representing Nazi imagery, such as Swastikas. This has resulted in the modification of a large number of games, thanks to the frequency with which Nazis have been used to present an unambiguously evil, and yet real-world, enemy. In some games, such as the recent Lego Indiana Jones the need for regional differences have been avoided by removing the Nazi references from all versions of the game.

While violence bothers the Germans, sex causes trouble in the US. Unlike violence however, sex is still rare in mainstream titles, and is usually confined to low cut tops and ‘jiggle physics’2. However, Polish developer CD Projekt RED‘s game, The Witcher, featured a number of possible sex scenes, after which the player was ‘rewarded’ with cards showing scantily clad portraits of the women in question.3 However, in US edition, these cards were censored to be more ‘modest.’ Unlike changes in Germany, this change was not a legal requirement, but was likely an attempt to avoid gaining an adults-only (AO) rating, which would drastically restrict the commercial availability of the game.
As well as considerations of censorship and ratings, games also undergo changes due to marketing and other considerations. In many cases these are merely reflected in external factors, such as packaging design, which may reflect regional sensibilities. In other cases though, changes are more fundamental.

The game Megadrive Ristar, by Sonic Team, had several distinct changes between the Western and Japaneese releases. I’ll now discuss some of these changes, as well as identifying some of the other techniques used within the game.

WesternJapanese

Fig1a. Western (Top), Japanese (Bottom)

If you compare the western and Japanese screen-shots (Figure 1) you will notice a number of subtle differences. For example, compare the eyes of Ristar, the main yellow star like character. In the western screen-shot, Ristar’s expression looks more aggressive than the Japanese equivalent; the western version of the game uses sprites previously reserved for boss battles. A side a effect of this change is a reduction in the number of idle animations in the western versions, and a loss of some of the graphical subtlety. Similarly, a comparison of the flying bird-like enemy also shows that the western version uses more aggressive sprites. This difference is due to the greater marketability of cuteness in the Japanese markets, compared to the appeal of violence in western markets.

WesternJapanese

Fig 2. Western (Left) Japanese (Right)

Similar modifications have been made to other enemies (Figure 2), such although the changes are not universal and the majority of enemies have a consistent design between the two versions. Conversely however, some enemies have undergone more major changes.
WesternJapanese

Fig 3. Western (Top), Japanese (Bottom)


The enemy in figure 3 has undergone a distinctive redesign between the two versions. The original flying squirrel design having been replaced by a bat. Bats have less association with ‘cuteness’4 and are more strongly associated with horror. In other cases (Figure 4) the redesign is motivated by other reasons.
Fig 4. Japanese (left), Western (right)

Fig 4. Japanese (left), Western (right)

In this case the Japanese and western boss both function with the same mechanics, but have a distinct appearance. The Japanese boss is in the form of a cat, named Itamor, and acts as a visual pun based on the Japanese term for someone adverse to hot food, nekojita, or cat-tounge. As this visual pun will not work in other languages, in other versions the boss was changed to be an ice monster instead.

The Rest of Ristar

Fig 5. Example Enemy

Fig 5. Example Enemy


It is worth considering the rest of the graphical design in Ristar, a game which had enormous attention to detail. Backgrounds had several levels of parallax scrolling, and environments were richly animated. The game also paid close attention to developing a consistent graphical style. As seen in figure 5, as well as earlier figures, enemies had a simple, rounded style. Furthermore, each enemy was usually restricted to one or two tones, with each colour occupying a large region. With bosses (Figure 6), these colours were used to define progress, as they changes as the enemy was progressively hit. Through this the game achieves a cohesive feeling, and uses graphical feedback to inform the player of their progress. In other games, similar graphical feedback is provided in boss battles, such as through progressively applying damage to the boss sprite or model.

Snake-No hitsSnake - One HitFigure 6. The Boss changes colour as it is hit

Figure 6. The Boss changes colour as it is hit


The backgrounds of Ristar were not solely background illustration. In some parts of the game they provided points of interaction, allowing the player to tear back areas of background to reveal items or enemies. In other sections the player could actually pass into regions of the level which previously appeared to be part of the background.
Fig 7.

Fig 7.


In the screen-shot above (figure 7) you can see a character in the background, just to the right of Ristar. This enemy would regularly throw pieces of fruit into the foreground, which would injure Ristar if they struck him. enemies in the background are inaccessible, and will dominate over a large section of the level, giving a sense of foreboding, over the remainder of the level. This was further exaggerated by dropping the light levels, and forcing the player to hit lamps to increase the available light (Figure 8).
Figure 8

Figure 8

In later sections the background is also used to foreshadow coming enemies, be it on a television monitor, or as a distant overbearing threat.

The control of the background is a popular technique in many games, and has even made the shift into the three dimensional era. In Half-Life 2 and its episodes, Valve used the tall structure of the citadel to provide a point visible over large portions of the game. In the first game this provided an eventual target, and source of oppression, whereas in episode one, the citadel provided a constant reminder of the threat which the player needed to escape from. The background video-screens also performed a similar role, presenting Breen as an overarching figure of oppression, one which exists from the very opening moments of the game. This imagery borrows heavily from Orwell’s 1984, and thus is able to communicate a huge amount of information to any player familiar with the book.

And so…

Part 3 was largely concerned with looking at some of the ways in which game graphics and illustrations vary regionally. In particular, it focused on some of the changes made to the Megadrive Game Ristar. I then used Ristar as a jumping point to consider some of the techniques it employed to create consistency, broadcast information and create atmosphere. It is likely that many of these techniques will be revisited in later entries.

  1. This Gaming Life, Jim Rossingol, 2008, University of Michigan Press, ISBN-10: 0-472-11635-5 []
  2. Jiggle physics is a term used to describe the way in which breasts are made to ‘bounce’ in response to movement. While it could be used to increase realism, it is more commonly exploited for gratification of the straight male (or gay female) gamer. []
  3. Many kilobytes have been spent elsewhere discussing whether these cards are sexist and objectify women, and how this fits in with the larger scope of the game. I shall not be covering this discussion here as I have not yet finished the game itself, and the topic is somewhat irrelevant to this entry. []
  4. Although personally I think they are cute []