Summer 2011:    Independent  Study

The radial dirod was built for the independent study PH360: Special Projects in Physics, taught by Professor Alan Wolf. The dirod builds up charge on two oppositely charged spheres. When the voltage between the two spheres surpasses the breakdown potential of air, an electric spark jumps the gap. For a detailed explanation see the paper posted below.

The version below is the second version built and features soldered pipe fittings to minimize corona losses.

A video of the radial dirod in operation

The first version had the pipe connections covered in insulating tape

The paper below details the mechanisms by which charge is built up on the radial dirod electrostatic generator.

A version with capacitors attached, which allow for a much larger spark.

For even more information please visit http://cavemanchemistry.com/dirod.html for radial dirod kits and explanations (these do not come with soldering equipment).