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Introduction to Databases and more

The Economic Geography of a Data Centre Location

Why did Facebook locate its new data centre in central Oregon? Babbage tries to explain.

The reason, the centre's boss Ken Patchett explains, is the weather. At first blush, this seems odd. Temperatures in Prineville routinely drop to -5°C (22°F) in the winter and climb to 32°C (90°F) in the summer. And the desert clime means that drops of 28°C (50°F) between day and night are not unheard of around this time of year. That ought to make keeping the servers at a steady 20–25°C (68–77°F) and 40–55% relative humidity an arduous task.

In fact, the Prineville plant is a leading exponent of a new style of data-centre management. It does away with expensive air-conditioning "chillers". Instead, air is brought in from outside. For this approach to work, however, the desert is key. For much of the year outside air is actually cool enough to keep the servers from overheating. At the lowest temperatures, just the gentlest of breezes needs to be brought inside at all. And, this being the desert, nights are chilly irrespective of the season, so even in the summer additional cooling is only needed during the hottest times of day.

Cool i-phone Application

We think iPhone Applications deserve its own category on this blog.

Mindjet for iPhone from Mindjet on Vimeo.
Mindjet’s iPhone App

It's easy to learn a language

MyLanguageExchange.com just maintains lists of people who know certain languages and want to learn others. Anyone can search the database, but only gold members, who pay $24 a year, can send e-mail easily to others.

Each person sets up a profile and includes a short description of age, location and what he or she would like to talk about. There is a big demand to practice English, and I found many possible pen pals.

Marie, 40, was born in Spain but lives in France near the Bordeaux region. She wants to improve her English and “perhaps find a job in sales export.” Serge, a Parisian who is retired, studies genealogy and wants to improve his English, Spanish and Swedish.

MyLanguageExchange.com claims it has more than 1.5 million members studying 115 languages.

I find the right partner through what are essentially classified ads. If I wanted to study Luxembourgish, the Germanic tongue of Luxembourg, there were 11 people looking to study English. There are 32 willing people who are fluent in Tswana, a Bantu language generally spoken around Southern Africa, mainly in Botswana. An e-mail or two is all it takes to find a study partner.

Maria, one of 113 people ready to help with Uyghur, which is spoken in western China, says she is also fluent in Mandarin but wants to practice Russian, Hindi and English. It is a big database.

-Learning a Language From an Expert, on the Web

Other similar Language Learning Sites;
Livmmocha
RhinoSpike
RosettaStone.com
GermanPod101.com
ChinesePod.com

Skype Forums

Some sites, like UsingEnglish.com, englishcafe.com and Englishbaby.com, are devoted to helping people practice English but add the elements of sharing photos and interests like a dating service.

A bug ate my Firefox?

My Firefox's execution file has disappeared and together with Chrome's execution file. It seems Explorer is the one that is working at the moment. Does any tech savvy person have an advice? Is it a bug? Or another Microsoft conspiracy? Anyway IE is really pathetic!

Unsolicited Advice to Amazon and Google book search team

One way to gauge a quality of a non-fiction book is the number of questions in a book. I'm not able to search 'question marks' under Amazon book search. It would be good to develop a visualization tool that allows you to see these sorts of things (eg. question marks, number of quotations included, etc).

Make Games Not War

A great book- highly recommended; The Art of Game Design: A Book of Lenses

Free Chapters;
Chapter 6: The game begins with an idea.
Chapter 9: The experience is in the player’s mind.
Chapter 23: The designer usually works with a team.

Book Review: The Art of Game Design

Using IT to create a post-bureaucratic organization

Bringing Change in Government Organizations: Evolution Towards Post-Bureaucracy with Web-Based IT Projects;

This paper examines the following question: How do government organizations become more “post-bureaucratic” with web-based IT projects? It draws on evolutionary thinking to conceptualize processes of change in government organizations as involving sequences of variation, selection, and retention as well as to identify various sources of change: internal ones (e.g. administrators), as well as external ones (e.g. technological innovations and institutional pressures). The paper relates findings from four in-depth qualitative case studies of web-based IT projects in different government organizations. The interpretation of these findings helps expand the evolutionary conceptualization by suggesting how different sources of change interact in the change process and variously affect different stages of the evolution.

Three quotations from the paper;

One of the things that my boss actually wanted to do is start building a knowledge management database, so that when people get phone calls, regardless of what agency does the phone call, there is a knowledge management database that they can refer to be able to better help point that customer in the right direction. That hasn't happened. Part of it was a funding issue also – those packages are very, very expensive - so we just didn't go there.”

“The fear [of government employees] of doing something in a way less than perfect primarily exists toward the outside world. Generally, the way it works in government is that when government makes a mistake, you can read about it in the papers the following day. This, in my view, is the predominant fear of government employees.”

“We see people wanting to create an online application that basically mimics the paper process […]. Take [for example] … environmental permits…. There may be paper signatures that are required right now, ink signatures, that are not mandated by any statute or regulation, it’s just that for the last hundred years we've done it this way, so they immediately think, ‘Oh my god, I need an electronic signature’. So we go back and ask, ‘Why do you think you need an electronic signature?’ ‘Because the paper is signed.’ ‘Well, where does it tell you that the paper has to be signed?’ And when they go back and they look at their regulations and statutes, they say, ‘You're right, there's nothing here that says that, so we don't need that, we need to authenticate where the paper's coming from, but we don't need a signature.”