THE field of research which has been opened up by the spectroscope is one with which we have so recently become familiar, that it may almost be said that twenty years ago, a course of lectures on ...

This is seen below with rubber bands used to hold things together. In this picture, the 3D printed parts on the left (black) are a slit assembly and a slit (see below for further discussion regarding ...

A scientific tool that can do the same thing is called a spectroscope (early spectroscopes used prisms). You can make your own spectroscope by following the instructions shown below! Assemble the ...