A small laser pointer is shined at a Light Dependent Resistor which in turn outputs an analog signal to the Arduino. When the laser beam is interrupted, the output voltage drops, the Arduino ...

We know that measuring the speed of light with an Arduino is possible. It’s just that the implementation is hard. [Udo] hit upon the idea of pulsing a laser pointer and measuring the time of the ...

Laser pointers (sometimes known as laser pens) are compact, handheld laser devices. They are typically used to highlight an object or point of interest by illuminating it with a bright spot of colored ...

The application and genuine reason forms are interactive. You must complete both forms, then print and return both forms with any requested documentation to the Firearms Registry, Locked Bag 5102, ...

Three years after a green laser beam shot out of the Third Ward in the direction of planes flying to and from Hobby Airport, ...

Every frisky feline loves playing with her laser pointer, right? Not always. Laser pointers can be a good option for kitty cardio and human laughs, but they might leave your cat feeling frustrated ...

In the laser pointer image above, note that the expanding lens and collimating lens work to shape the laser's output, while the IR filter removes any infrared radiation from the beam. For years after ...

If you need high-quality printing in a snap, a laser printer can produce clean, sharp prints in as little as a few seconds. But, after three weeks of testing each device, not all laser printers ...

The best laser printers on the market are the ones that consistently deliver pages of high quality at lower printing costs than the competition, without causing you headaches. I know because my ...

The best color laser printers are a great investment that can save you time and money compared to cartridge-based inkjet printers. Laser printers use toner, which lasts a long time, delivering a ...

You can now customize the look of the mouse pointer in the latest Android 15 QPR1 beta. Specifically, you can change the fill style, stroke style, and scale of the mouse pointer. This feature is ...

Forget about the side effects of shaving and the pain of at-home waxing — laser hair removal makes it easy to achieve smooth, lasting results from the comfort and privacy of your own home.