Friday Video

Coffee Shop Business

As seen on CNN: An online locally oriented site TheDigitel.com is run out of a coffee shop by one previously unemployed man.

This makes it look easy to do with no budget, but it doesn't talk server expenses or advertising. The site uses Drupal to organize the pages, Drupal is free, but I wonder what other expenses the site has that the CNN report didn't cover.

Kanban Process

A Kanban system uses a limited number of physical tokens to match utilization to the natural limits of a process.
A video of David Anderson talking about how to use Kanban for agile software development.

No Solution

Let's talk about Ben:

"He just found it incredibly difficult to grasp reading at school, his reading age was well below average. When he got homework I had to help him read it and when he sat his Sats tests at 11 (in English, maths and science) he had to have someone read the questions to him."
"I initially thought he was dyslexic and took him to be tested but, because he could not read very well, the test did not work and they could not determine whether he was or was not."

This is an example of a failure in education. The root cause of this failure is a system that developed over time based on the limited knowledge of leaders decades or centuries ago. When we hear about Ben's problem this way it seems intractable, the kind of problems that might take years to resolve or work around. Indeed, one might conclude that there is no solution and that he is simply not able to keep up.

How coloured lenses helped Ben read

It turns out that he had a condition called scotopic sensitivity which is thought to affect half of all children with learning difficulties. This is clearly a huge problem with a cheap and simple solution, but the educational system could not have been designed to deal with an illness that wasn't known centuries or decades before. This might be forgiveable, except that it can't adapt because it wasn't designed to react appropriately to a student having trouble.

There is a well defined formal process for failure and segmentation based on past performance, but no similarly entrenched process for prioritizing and seeking out the cause of the difficulties. If you've failed to do what it takes to teach a child to read, having someone read his tests to him is in no way fair to him.

New Laptop review

This morning I installed Ubuntu Netbook Remix on a refurbished EEEpc 900A. The OS it came with was not very good: Most of the updates weren't working, There was 70MB of free storage (yes, MegaBytes) and it just clearly wasn't intended for a power user. The only way to get to a terminal was ctrl-t, and the window that came up just wasn't user friendly.

One nice app that was included was stellarium, a deceptively simple desktop starmap. I've wanted to learn constellations and star names better, and stellarium is a perfect tool for that, plus tracking all the planets, and zooming close enough to see the movement of their moons. It's not a technological breakthrough, but it's a perfect kind of pocket guide and I think it suits the netbook form factor very well.

But it's also available in the stellarium package for ubuntu, so ubuntu is what I used.

I'm happy to say that what I got was more of the same high quality I've come to expect from ubuntu. After installing some of my favorites apps, and uninstalling a few others, I have a small and light computer with a very easy to use launcher and a full screen windowing system. (and yes you can switch to a regular window manager, but so far I haven't felt the need to.)

The other issue which worried me about modern netbooks was heat. This laptop does not get hot. It's warm when you touch it with your hand, but not at all uncomfortable the way most other laptops tend to be. I'm surprised it even requires a fan.

Grid Beam Building System

The Grid Beam Building System Has got to be the best and simplest attempts I have seen at a realistic building system for adults. It's simply some square beams of metal or wood with regularly spaced holes drilled through, and some bolts.

This makes it relatively cheap and easy to manufacture the basic components. Somewhere in this project is the potential for a simple business making and selling kits.

"One of the questions I often get especially from non-builders is why do we drill all the holes in Grid beam if only some of them are used? The answer is, without all of the holes, it has no future. Every traditional machine has a useful lifespan before it is obsolete or worn out. Then it is either buried in the earth or melted and reshaped into more one use stuff. Grid beam is different in that it is extremely repairable and if you do want to take it apart, all the component parts including the Grid beam is ready for a new life solving yet another problem."