Whether you're a regular presentation giver or you just like to pop balloons and start fires, laser pointers have become much more common, albeit sometimes unsafe, household objects. Here's how to ...

A few weeks ago we posted a story about how some green laser pointers leak dangerous amounts of eye-damaging infrared light, and outlined a home-brew way to test your own laser pointers. That test ...

In the last 20 years, green lasers have shrunk from table-size lab equipment to pocket-portable presentation tools (not to mention cat toys). But making laser pointers a household item may have come ...

Discover how to build your own DIY laser pointer that connects to your smartphone's headphone jack and is controlled via an app. This step-by-step guide covers preparing the audio jack, soldering the ...

Smartphone cameras are getting more advanced all the time, but now a DIY fan has revealed how crafty iPhone owners can make a microscope for their handset for under $10. Using a block of wood, some ...

Combining a simple red laser pointer with a Star Trek phaser toy seems so incredibly obvious, but apparently it’s taken this long for a clever entrepreneur to put those pieces together and come up ...