Recently, I tried to make a Leeuwenhoek style magnifying glass/microscope by drawing a bit of glass tubing into a ball using a propane torch (along the lines of the project in Make Magazine Vol 20.) ...

Question from Nora in Ms. Fitzpatrick’s class. A microscope is an instrument that lets you magnify and see really small things that you cannot distinguish with your naked eye. The earliest microscopes ...

In the 1660s, Robert Hooke looked through a primitive microscope at a thinly cut piece of cork. He saw a series of walled boxes that reminded him of the tiny rooms, or cellula, occupied by monks.