While this is easy if you have good eyesight and you’re young, a lot of us don’t have that luxury and instead must rely on magnifying glasses and loupes. [Mauro]’s project for the Hackaday ...

On the other end of the scale, there are ornamental magnifying glasses, designed for light use, but more often wind up as a curio to add to bookshelves and cupboards. Somewhere in the middle ...

As most people know, it is possible to use a magnifying glass to focus the Sun's light and burn a hole in whatever has angered you that day. But is it possible to harness light from the Moon in ...