The quest to build a great home theater is one of our recurring themes for Engadget's How-To Tuesdays. And as anyone home theater buff will tell you, any HDTV worth its weight in salt will present ...

The solar eclipse is approaching soon, and if you don't have proper eyewear, here's how you can watch the moment with a DIY pinhole projector.

Here are eight tips to get your home theater projector looking its best.

How to make an iPhone hologram projector Holographic projectors can be costly items at the best of times, but with a bit of ingenuity and an old CD case you can make one yourself for your iPhone.

Smell that? Is it the insulation burning off those wires? Nope, it's the sweet smell of success. Today we're wrapping up our series on building your own HD projector. We've got to wind up a few ...

Supplies There are many ways to make a pinhole projector, but you really just need two things: something with a pinhole in it, and something to project the image on.

Introduction 00:10 Initial setting 00:50 Create Projection 01:50 Create light rays 02:21 Adjust the Blur of the Projection Hope it is useful to you Thanks for watching Subscribe!

The cereal box solar eclipse theater is a good way to safely view the Aug. 21 solar eclipse. Here's how to make one at home.

How to make a pinhole projector from a cereal box to safely view the total solar eclipse. You don't need fancy equipment to watch the celestial event.

If you want to host an outdoor movie night, an impromptu gaming session, or work presentations on the road, a portable projector can make it happen.

Create a hologram projector for your iPhone with this fun DIY project, blending technology and creativity.