Might a pool or ball of mercury in an inverted cone in contact with a "wire"
act as an electrolysis cell cathode?
The anode might be a conductive manganese dioxide-coated brass rod (or such) made by
plating the rod (anode) in a potassium permanganate solution at about 12 volts DC (works better
with a little NaOH added).
This coating may also double as a D2 - O2 recombiner catalyst?
Frederick
