April 24, 2024
Huge 4" x 6" x 1/2" Electron Tree Sculpture, HV Tesla
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Beautiful 4" x 6" x 1/2" "Captured Lightning" Electron Tree Sculpture The branching pattern inside this acrylic sculpture is called a Lichtenberg Figure or Electron Tree. It was created by forcing up to 2 million volts of electricity through the acrylic. The lightning-like sparks left a permanent record of their passage, creating a "Captured Lightning" figure in a process similar to the way fulgurites are sometimes captured within sandy soil during a lightning strike. Holding one of our Captured Lightning specimens is about as close as you can come to holding a lightning bolt in your hand. Lichtenberg Figures are named in honor of Georg Christoph Lichtenberg, the 18th century physicist who first discovered them. Lichtenberg originally used high voltage discharges from electrostatic machines and finely powdered sulfur and lead oxide to create 2-D figures on the surface of insulating materials. This modern 3-D specimen was created by bombarding acrylic with high-speed electrons using a high voltage linear accelerator (LINAC). The LINAC generates a beam of electrons that have been accelerated to as much as 99.5% the speed of light. When these relativistic electrons slam into the acrylic, they easily penetrate the surface, finally coming to rest about half way through the acrylic. This causes a flat "cloud" layer of excess negative
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