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 former Cisco Systems engineer is behind all these. He was thinking what good are digital cameras if many of the pictures they take remain forgotten on their memory cards because of complicated ways to upload them to computers. Convinced that users would pay for an easier way to upload their pictures, Koren left Cisco, assembled a team and founded Mountain View, California
The company raised $5.5 million from Silicon Valley firms Shasta Ventures and Opus Capital and the result is an orange 2-gigabyte memory card embedded with a Wi-Fi chip that allows cameras to automatically and wirelessly upload digital pictures. Priced at $99.99 the wifi memory card is already available on stores like Amazon and Wal-Mart.
Here is a few words about how Eye-Fi works: Camera owners set up their Eye-Fi account online and choose where they’d like to upload photos online and on their desktops. Photos can be sent to 17 photo-sharing and blogging sites, including iPhoto, Flickr, Shutterfly and TypePad. They then pop the Eye-Fi card into their camera’s memory card slot and snap away. A Wi-Fi chip (made by Santa Clara, Calif.-based Atheros) then communicates with their home network and automatically uploads photos to their computer and the Web. This is pretty simple.
As you may know this isn’t the only wifi camera technology available… there are other cameras available with integrated wi-fi technology but their price make’s them unaccessible to ordinary people. The coolness of Eye-Fi’s WiFi memory card aside, some analysts say the company’s real value derives from the software it’s developed to automatically send photos to multiple websites and locations on a computer. While uploading photos via WiFi can take longer than using your USB cable, it’s the simplicity that makes Eye-Fi more attractive to people.
The hexapod is another cool gadget from Active Robots, for those of you who like robots and DIY you should buy this and see how it goes with the assembly of the robot. The Extreme Hexapod 1 Walker Kit really walks using a simplified version of the alternating tripod gait. The robot’s six legs are controlled by three servos to provide full stride, (horizontal motion), and 1″ of leg lift, (vertical motion).
The middle legs use a parallelogram design to make the lifting operation much more efficient. With a payload of more than 12 oz., this robot has no trouble getting around. The robot is supplied with control electronics. A host PC is required to download programs to the robot. Everything you need to get on the move is included in this kit. You can buy this kit for about 350 $ from Active Robots page
When I want to test something for hardware issues , like a ram module I have to insert the module into another system and see if it functions correctly, that can take time , and not everyone has a back-up system standing-by for testing hardware components. If you don’t like this method you can use this gadget it’s called RAMCHECK, it work’s right out of the box, you just plug in your ram module and you test it. You can easily upgrade firmwire from the producer’s website. It includes Windows PC Interface a detailed RAMCHECK manual and PC software programs for printing test and results.
Check the website for more information’s and price list RAMCHECK website