资讯

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.
Create a hologram projector for your iPhone with this fun DIY project, blending technology and creativity.
To watch the solar eclipse on August 21, you could invest in a pair of overpriced eclipse glasses. But you're better off with a pinhole camera—or a pair of binoculars.
How to Make a Pinhole Projector to View Today's Solar Eclipse It's easier than trying to find eclipse glasses at this point. And better for your eyes than staring directly at the sun.
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.
Sure, you could spend hundreds (or even thousands) of dollars on a high-quality mini projector for your smartphone. But, with a little ingenuity, a shoebox, and a magnifying glass, you can make ...
How to Make a Hard Drive Projector Although making a hard drive projector may seem complicated, the end result is quite rewarding and will make you forget the initial challenges.