Technology

Usually, when we migrate from one content management system to another, or when you are restructuring your website, you find that in most cases the URLs change for existing content.

There is nothing inherently wrong with that happening. New visitors to your website can still navigate to the page. The issue though is when there are pages out there that might be linking to your page with the old URL. Or there might even be search engine indexes that still point to your old URL. The result will be a drop in traffic.

A fresh Drupal installation would be having URL (Uniform Resource Locators) of the following fashion:

http://www.wisetome.com/?q=node/1

Technology has always be 'witch-hunted' for causing damage to our environment. There are many cases where technology helps in protecting the environment. But on the other hand, it can be argued that technology is the source for the damage to begin with. The cause though, is human need. As humans needs and wants increase, technology happens to be the tool that serves the purpose, and as a side effect, it causes environmental damage.

Earlier, we saw how batteries work. And then, I had mentioned about different types of batteries.

Basically, there are two types of batteries. Primary batteries and rechargeable or secondary batteries.

As I mentioned earlier, batteries are used in various gadgets in our daily lives.

We will look at how they work internally. I will not be going into details of chemical reactions (like chemical formulas along with the emf values) - but this will be a general look at how they work.

A battery usually consists of one or more cells. If there are more than one cells, then they are usually connected in series.

They are present in your cell phones, walkmans, PMPs, wall clocks, toys and what not. They power all these portable devices - they are a product of evolution in electrical technology that dates back to ancient times.

Drupal is an Open Source Content Management system. It is a CMS with which you will be able to build a website.

To install Drupal, the hosting setup needs to meet certain set of requirements. The basic requirements are:

This post is just a heads up on things I will be posting about Drupal in following weeks. I have been using this content management system (CMS) for quite some time (and also Wordpress).

This site - the root - runs on Drupal. This blog though, runs on Wordpress. (Update - Splat has been migrated and consolidated into the root site and now runs on Drupal).

In the last post on cellular network, you saw that the geographic area of a cell phone service provider is divided into cells - roughly hexagonal shaped areas that serve a particular region. The cell site provides coverage for that particular cell area. This results in the use of quite an interesting technique called handoff.

Ever wondered why mobile phones are sometimes called 'cell' phones? What put the 'cell' in the cell-phone?

In case you want to find out, read on.

A cell phone works on the back bone called the cellular network. Hence, the name cell phone - a phone that works on a cellular network. Yes - why is a cellular network called a 'cell' network? We will get to that, but before that, let us look at how a call you make from a cell phone to another cell phone work.