Archive for June 2013

Cloud9 IDE

When I was researching for my BeagleBone Black I saw in material two things I had read about earlier: Cloud9 IDE and node.js. Cloud9 IDE is an online development environment for Javascript and Node.js applications as well as HTML, CSS, PHP, Java, Ruby and 23 other languages. It promises that you can write, run, and

BeagleBone Black

Beagle Board has a long history of making reasonably ARM development boards. Recently they come up with interesting BeagleBone series of boards. BeagleBone is an $89 MSRP, credit-card-sized Linux computer that connects to the Internet and runs software such as Android 4.0 and Ubuntu. The board is based on AM335x 720MHz ARM® processor. BeagleBone Black

DC circuit breakers

Knowing the electrical characteristics of direct current and its differences in comparison with alternating current is fundamental to understand how to employ direct current. Direct current presents different problems than alternating current with a regard to the phenomena associated to the interruption of high value currents since the arc extinction results to be particularly difficult.

Blog advertising

Blog Advertising has been a hot topic for some years. Online advertising offers three primary types of ads bloggers can use to make money from their blogs: Pay-per-click, Pay-per-impression and Pay-per-action. In addition to those classic web advertising some bloggers can get some compensation on writing for example review of product (free products to review

Lightning protection

Every summer we get thunderstorms, with the accompanying lightning in Finland. It is expected that thunderstorms starts in few days. Varo! Torstaina salamoi article says that it is expected that next Thursday there will be (according to weather forecast) 5000-10000 lightning discharge events in Finland. Lightning is a massive electrostatic discharge between electrically charged regions

Software-Defined Data Centers

Software defined seems to be the hype buzzword nowadays for many technology areas: We have Software-defined radio, Software-defined networking, Software defined storage and software-defined data center. Some days ago AllThingsD ran a piece endorsing the idea of the software-defined data center titled What Is the Software Defined Data Center and Why Is It Important? Slashdot

We Need a Fixer Movement?

You’ve heard about the “maker movement,” the geeks who’ve been rebooting America’s craft tradition. The same kind of movement is also happening in other countries, including Finland. Wired writes that We Need a Fixer (Not Just a Maker) Movement. We need to use our maker skills to something new: We need to apply those maker

Ground Loop Tutorial

I was just pointed to a new interesting ground loop document few days ago. Ground Loop Tutorial is a tutorial on electrical interference with emphasis on ground loops. It distinguishes several different types of interference and discusses the underlying physics at a basic level. In the end there is a good list of Methods for