Wireless energy made true at the IDF2008

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“Something like this technology could be embedded in tables and work surfaces, so as soon as you put down an appropriately equipped device it would immediately begin drawing power.”

Images taken from the Intel Developer Forum 2008, the event where the wireless power technology was showcased, along with additional information about the topic are available here, here and here.

The system, called a “wireless resonant energy link“, transmits energy through strongly coupled resonators, much like how a singer can shatter glass singing at the same particular resonance frequency of the target material.

But frankly, like someone pointed out, I would too think twice before standing on the same room as that transmitter while it is doing its magic. What could possibly (and unnoticeably) happen if you somehow get inbetween those daunting antennas?

And just in case you are wondering what the picture on the top right is all about, it is an artistic representation of the Wardenclyffe Tower, a wireless eletricity demonstration tower that Nikola Tesla began building in 1901, but which was never completed. Could at least a tiny fraction of Tesla‘s dreams finally come true with some efforts from a chip maker company?

Software Licenses’ Legal Notices

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When releasing software it is always good to release under a suitable license. Licensing policies were created to protect you and your code, restricting what others can do using your code, and not what you can do with your own code. The copyright holder (the author, e.g. you) is able to change licensing policies anytime, but, depending on the license you choose, only as long as every author and every person who has ever contributed to your project also agree.

Wikipedia offers a list of popular licenses and a comparison of free software licenses you can use in your projects. But no matter which one you choose, a common practice is to include a license notice header in all your source files to enforce the restrictions you have chosen. Here is a list of common headers for the most common available software licenses. Comparison between its different implications is beyond the scope of this post, but more information is available on the Additional Information section below.


GPL – GNU Public License (details)

LGPL – Lesser GNU Public License (details)

MPL – Mozilla Public License (details)

BSD License (details)

MIT License (details)

Apache License (details)

CC – Creative Commons (details)

Creative Commons licenses are not intended to apply to, and should not be used for software. I’ve included it here just to remember you.

Public Domain (details)

This is only a suggestion as there is no common sense on how to dedicate your work for the public domain. This excerpt was borrowed from the SQLite site, a popular software that is itself dedicated to the public domain.

WARNING: Please pay attention that the Public Domain Dedication is not a license. By using it, you do not simply carve out exceptions to your copyright; you grant your entire copyright to the public without condition. This grant is permanent and irreversible. You’ve been warned.


Additional Information


For a nice comparison of different licenses, implications and more useful information, please check:

Comparison of Source Code Licenses

Also, before blindly adopting the GPLv3, please be sure you have completely and correctly understood everything it says. For more info about the GPL and the GPLv2 vs GPLv3 debate, see:

The GPL for Dummies
The GPLv2 vs. GPLv3 Debate
What the kernel guys are and aren’t (and really should be) saying about GPLv3
The Dangers and Problems with GPLv3
The GPLv2 vs. GPLv3 Chart

Personally, I would rather go with the GPL v2 instead.

Cool Google Insights: Windows Vista vs Windows XP

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This is the first post of a series of cool search volume comparisons now made possible with Google Insights for Search. Just click the title below to see its result directly on Insights:

Windows Vista vs Windows XP


Unlike a planned previous post I decided not to publish yet, this result was very predictable. People just search more for Windows XP than Windows Vista, and this ain’t recent news. Curiously, people at Guatemala seems to have the greatest interest on Vista, while India would rather search more for XP. Indeed, searching a little may even confirm what Indians have to say about Vista. For me only XP, too!

Also sorry, but I couldn’t resist. I had to post this:

Cool Google Insights!

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Recently, Google unveiled its new service, Google Insights for Search.

With Google Insights for Search, you can compare search volume patterns across specific regions, categories, and time frames.

Indeed, with Google Insights for Search you can provide just a couple search terms and then let Google show you a comparison of search volume for those terms over time for any date range since 2004, along with a display of their local frequencies over a world map.
But although this new Google service may be targeted to advertisers, just think about the endless possibilities it gives to cultural, social and behavioral studies that can now be performed over Google’s logged data.

With Google Insights for Search, you can search for a term to track how much it’s been googled over time, where on a “heat map” it’s most popular, and what the top “related” and “rising” searches for the term are.

So, for example, we may now find out that queries for technology may be more popular in Nigeria than in India, that searches for fireworks tremendously rises as the new year holidays approaches, we may follow the rise of firefox, find out how people got really worried about trying to stop global warming over the first semester of 2007, but also see that by now much of those concerns may have been forgotten. Or we may even confirm that Obama is more popular than McCain not only on the U.S. but on the rest of the world as well.

On future posts, to be filled under this same Google Insights label, I’ll post cool searches comparisons that may (or may not) reflect our current reality, culture and behaviour worldwide. Feel free to grab this blog rss feed if you wish following!