Electrum

Electrum or Electrum, is a 1998 sculpture by Eric Orr and Greg Leyh built around the world's largest Tesla coil. The coil stands 11.5 meters in height, operates at power levels up to 130,000 watts, and produces 3 million volts on its spherical top terminal. The sculpture is currently installed in a private area at Gibbs Farm in Kaukapakapa in New Zealand, a sculpture park art collection of businessman Alan Gibbs. The top, spherical electrode of the sculpture is large enough to hold a human. The piece was the subject of a 2000 documentary, "Electrum: Science as Art" and the 2011 documentary Lightning Dreams, by Alberta Chu.