On 1/6/2007 8:27 PM, Kyle R. Mcallister wrote: > > 2. With no plastic covers (Miklos' ping pong balls), it works like an > electric pinwheel, just like we used to run from a Wimshurst machine, at > which point everyone was amused. > > 3. Cover the ends of the wires on the pinwheel with plastic spheres (or > cubes, in my case) and thrust is zero, or bloody near.
Why not try ping pong balls? Established science may tell you that the geometry of the end caps is insignificant or irrelevant but perhaps in this case established science is incorrect. Harry
