It is always recommended with AJAX solutions that you put href attribute of the link tag to the server side version of the same functionality and put the JavaScript in the onclick event for that link tag. That way users using your site will get the AJAX experience and the search engines will execute the server side version of the code (making your side SEO friendly)

Orca is an AJAX forum without AJAX problems. The “Back” button does work, bookmarks do work, permalinks do work and yes, it is search engine friendly. A dream solution for current web 2.0 applications.

A very nice explanation on how they have achieved this can be found at: Creating An SEO Friendly Site Using AJAX.

What  I liked the most was their solution for the back button problem!

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Wifi has penetrated lot of cities in US and other countries but it is still not everywhere and there are times when you have to be content with not being connected to the Internet. It happens on roads, some hotels, public places, cafeterias etc.

If you are a road warrior and have the need to be always connected then you should try mobile broadband cards or your cell phones. These cards fit into your laptop’s PCMCIA slots or USB slots and connect to the wireless carriers network to provide you with Internet connectivity. Cell phones can be hooked onto laptops and used to connect to the Internet.

Some options which you have in US are:

1. Sprint’s Mobile Broadband Card: providing download speeds upto 600 kbps
2. Cingular’s LaptopConnect—Wireless Laptop Solutions: features laptop connect cards and some laptops with the card built into them.
3. Verizon’s BroadbandAccess PC Card or BroadbandAccess Built-in or BroadbandAccess Connect: get a card and plug it into your laptop or buy a laptop with access built in or connect your phone to your laptop to get to the net.

If you are traveling to India, there is a similar option available:

1. Reliance NetConnect: PCMCIA card or USB option to connect to the large Reliance CDMA network.
2. Mobile Broadband Cards: you can use with carriers like Airtel and Hutch. According to discussion threads EDGE cards have better speeds than Reliance Card.

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This toy version of hydrogen cell futuristic car uses next generation reversible Polymer Electrolyte Membrane (PEM) fuel cell.

 (click on the image to enlarge)

• Add water to the water tanks located in the back of the car
• Uses the water (H₂0) to produce and store oxygen (0₂) and hydrogen (H₂)
• The car can turn around obstacles by itself, and is powered by clean hydrogen fuel

One can download the brochure for this toy car here. If you want you can order it here.

What is a fuel cell?

A fuel cell is an electrochemical energy conversion device. It produces electricity from external supplies of fuel (on the anode side) and oxidant (on the cathode side). These react in the presence of an electrolyte. Generally, the reactants flow in and reaction products flow out while the electrolyte remains in the cell. Fuel cells can operate virtually continuously as long as the necessary flows are maintained.

Fuel cells differ from batteries in that they consume reactants, which must be replenished, while batteries store electrical energy chemically in a closed system. Additionally, while the electrodes within a battery react and change as a battery is charged or discharged, a fuel cell’s electrodes are catalytic and relatively stable.

Fuel cells since long have been suggested as alternative energy source of energy but have had design problems and were not cost efficient so far. Things are changing now.

The BMW 750hL, a production ready car  is the culmination of three decades of research on hydrogen powered vehicles. The 750hL is a car powered by sunlight and water.

 I wish this environment friendly technology the very best of luck and hope it solves the energy and pollution crisis for good!

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Don’t have Visio to create your UML model/ network diagram/ flowchart, no problem, try Gliffy, a web-based diagram editor which supports rich diagramming capabilities right in your web browser. It is available for free.

Besides the rich drawing capabilities with support for Flowcharts, UML, Network Diagrams, User Interface, Floor Diagram, it also allows you to upload your own image and use it.

Read more »

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DNA Direct is a company providing access to genetic test ordering through the web and phone. They have developed a notion of virtual genetics clinic to facilitate this process.

Genetic tests can tell you if you carry a genetic risk, screen you for disease, or screen you for carrier status. This information will empower an individual enabling him to make better health decisions.

Mosts of the tests can be ordered online  and the test kit arrives in mail. Tests are easy to carry out and you need to send the sample back for analysis. Detailed reports on your tests come up on the web site.

Some of the tests they offer:

• Alpha-1 Antitrypsin Deficiency
• Blood Clotting Disorders
• Breast & Ovarian Cancer
• Cystic Fibrosis
• Drug Metabolism (CYP2D6 Gene)
• Hemochromatosis
• Infertility
• PreGen-Plus Colon Cancer Screening
• Recurrent Pregnancy Loss
• Tamoxifen

(PBS affiliate aired a segment on Genetics Testing Through The Web)

The process has indeed been made very friendly and should encourage individuals to undergo these tests.

How Genetics and Genetic Testing works?

Source: Here

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Jefferson Y. Han, a research scientist at New York University’s Courant Institute of Mathematical Sciences,  has come up with a cost effective multi-touch, multi-point computer screen, which he demonstrated to thousand or so attendees on the first day of TED 2006, the annual technology, entertainment, and design conference in Monterey, California

Here is a video of his demonstration at TED:

Apple’s new iPhone also supports multi-touch display.

Link to Multi-Touch Interaction Research

Technorati Tags: Jeff-Han, - multi-touch, - TED-2006, - multi-point, - multi-user

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