YourITronics

A laser is an optical device that produces coherent radiation. The term “laser” is an acronym: Light Amplification by Stimulated Emission of Radiation. A typical laser emits light in a narrow, low-divergence beam and with a well-defined wavelength. I’m not going to get to messy with the theory.

Everyone must of seen a laser pointer so you know how it looks and what it can do. It’s a fact that ordinary laser pointers can’t burn anything. There are a few commercial lasers that will burn various stuff but those are to expensive, we are looking a cheaper way to burn stuff with a laser. Some people managed to build this kind of lasers. At your own risk you can follow their instructions, but be careful laser’s are dangerous!

Almost all of the laser’s from the following movies are based on this tutorial Link.

   A nice project from justDIY Project Log, as the author is saying he created this project one day when he was boring and needed something “to ease his racing brain …” not many people can create something this nice when they are bored. Led projects like this are always fun to build and to watch them working. I recommend this project to everyone who has a bit of experience with microcontrollers. You can get full info, schematics and source code for this project from here Link
Watch this circuit in action:

    Here is a great tutorial on how to use a heat gun to recover parts from various boards. You never know when you will need just a small part to finish up a project and you cant find it. Its better to have these parts available when you need them.

You can recycle your obsolete electronic gadgets and learn about how these products are made at the same time. Useful parts to scrounge include surface mount and through hole components, microcontrollers, LCDs, connectors, digital and analog ICs, transistors, LEDs etc

Full tutorial here: Link

Due to the holiday season up next the linux OS will get a great chance to become more popular than it is at Wal-Mart Stores. They were taking orders online Wednesday for a computer called the “Green gPC” that is made by Everex of Taiwan, costs $199 and runs Linux.

It will be available in about 600 stores, as well as online, Wal-Mart said. A comparable Everex PC preinstalled with Windows Vista Home Basic and more memory costs $298 partly because the manufacturer has to pay Microsoft Corp. for a software license, so I think people will like the new computer and discover the goods of linux.

Both computers come with keyboard, mouse, and speakers, but without a monitor. As you already may know Linux is developed and offered on a open-source basis by individuals and companies around the world.

It’s being used especially on servers because of its high stability on long term use. The variant of Linux on the gPC is called gOS and is derived from the popular Ubuntu variant. It’s mostly oriented toward Google’s Web sites and online applications, like YouTube, Gmail and the company’s word processing program, all of which can be used only when the computer is connected to a broadband line.

The PC comes with a dialup modem, but gOS doesn’t support it. So most users likely will get online using other ways. Google’s entrance to the OS market is relatively new and I think gOS will be a great chance for users who would like to move away from Microsoft and windows to something new and better.

Wal-Mart spokeswoman Melissa O’Brien said it is stocking the computer in about one in eight stores to test the demand for an open-source product. The gPC has a low-end processor from VIA Technologies, plus 512 megabytes of internal memory, an 80-gigabyte hard drive and a combination DVD drive and CD burner. Everex says the processor is very energy efficient, meriting the “Green” part of the name.

here is a screenshot of the gPC or you could call it a gOS screenshot:

Sources :

http://www.thinkgos.com

http://www.everex.com

http://www.walmart.com

Also if you would like to see more gOS screenshots you should check this article of mine.

    Using this technology your next laptop could have a continuous power battery that lasts for 30 years without a single recharge thanks to work being funded by the U.S. Air Force Research Laboratory. The breakthrough betavoltaic power cells are constructed from semiconductors and use radioisotopes as the energy source. As the radioactive material decays it emits beta particles that transform into electric power capable of fueling an electrical device like a laptop for years. Although hearing the expression “betavoltaic batteries” you may think at nuclear energy they are not based on nuclear energy. They neither use fission/fusion or chemical processes to produce energy and so they do not produce any radioactive or hazardous waste.

You can read full article here Link