To make your simple pinhole projector, grab one of the card stocks, fold it in half, and cut a small 1-inch (or 2-inch) hole at its center.

How to build a pinhole projector for the Ring of Fire eclipse: Pinhole projectors or pinhole cameras are very simple devices that use a tiny hole (aperture) instead of a lens to project an ...

How to turn your smartphone into a simple holographic projector Turning your smartphone into a sort a budget holographic projector is much easier than you’d expect, and it’s a fun project if you find ...

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.

Turning your smartphone into a sort a budget holographic projector is much easier than you’d expect, and it’s a fun project if you find yourself bored enough. We rarely advise you to drop everything ...

A YouTuber tech wizard, who specializes in short instructional videos, has designed an easy-to-make plastic contraption that allows you to project 3D holographic videos that float directly above your ...

Turning your smartphone into a sort a budget holographic projector is much easier than you’d expect, and it’s a fun project if you find yourself bored enough. We rarely advise you to drop ...

An curved arrow pointing right. It's really simple to build a projector for your smartphone to be able to project the same types of holograms seen in Star Wars and other movies. Here's how! The ...