a type of electronic test instrument which allows observation of constantly varying signal voltages, especially very fast changes in voltage over time. The oscilloscope can show information which a simple multimeter cannot. The display usually shows as a two-dimensional plot of one or more signals as a function of time. Non-electrical signals (such as sound or vibration) can be converted to voltages and displayed.
Read and view the material at the following links to help you prepare for using the oscilloscope.
A glass grinder is primarily used for working with pieces of stained glass, preparing the edges to make them smooth and to help them match the edge of the next mating piece of glass in the pattern. The grinder is water cooled to avoid overheating the glass edges, and is safe to use with care to wear safety glasses and DOES require caution because of the potential for glass breaking. Always use gentle pressure to grind the edges and take extra care with narrow glass pieces or when grinding near sharp glass points.
[Stained Glass project image here]
Read and view the material at the following links to help you prepare for using the Glass Grinder.