No prizes for guessing the first thing you'll need: a microscope. But don't worry if you don't have one of your own. Ask your school if they have one you can use. Then you'll need an onion.

Thanks to its functionality, versatility and ease of use, the Swift SW200DL is a superb microscope that we would recommend for anyone who wants to explore the world around them, up close and in ...

test and debug SMD circuits using parts as small as grains of sand. We have seen a lot of stereo microscope hacks here at Hackaday, so it helps to take a look inside one to understand how they work.