3" x 3" x 2" Prisms with TWO Irradiation Layers
"African Trees" are back in stock!

These specimens vary from approximately 2 3/4" to 3" on each side, and are 2" thick. They were irradiated on one of the large flat sides, rotated 180 degrees, and irradiated again from the opposite side to create two parallel layers of charge inside the acrylic. Depending upon where and when these charge layers were discharged, a wide variety of complex electrical interactions occurred between the two space charge layers. This caused a variety of unusual and very spectacular discharges.  Although many of our other Lichtenberg Figures form simple 2-Dimensional planes, these figures are truly 3-Dimensional. They contain not only branching discharges within each plane, most also contain complex discharges between planes. Some of these specimens look like a time lapse photograph of a raging lightning storm, while others are similar to an African Acacia tree:

Others have plane-to-plane discharges that resemble the high altitude lightning sprites that sometimes appear above powerful thunderstorms. Some sculptures have two virtually independent parallel discharge planes connected only by a single discharge root. Some exhibit branched dendritic discharges, others have "snowflakes" (small tuft-like discharges that resemble snow crystals), while others are wildly chaotic with seemingly random fluffy "cotton candy" discharges. Many specimens show various combinations of dendritic, chaotic, and snowflake discharges. Although the internal patterns vary from specimen to specimen, we guarantee that you will be fascinated and satisfied with your purchase.
 
These specimens were created from a limited stock of crystal clear Plexiglas. The following images do not begin to capture the depth, clarity, and jewel like character of these 3D figures. When illuminated by a multicolor or rotating LED base, these become sparkling works of scientific art. Laser crystal art can't begin to match the exquisite detail and intricate complexity and infinite variation of the fractal discharges within these prisms.

Please describe which type(s) of discharges you prefer (i.e., African Tree, Windblown Lightning, etc.), and we will try to find one that matches. Some styles, such as "Heavy Weather", underwent multiple discharges while under e-beam irradiation. These repetitive discharges created a degree of caramel coloring to the major discharge paths that adds a different character to the piece. The darker coloring disappears once the specimen is illuminated. However, some customers may find these specimens less appealing. Rest assured that your satisfaction is always  guaranteed by Stoneridge Engineering. If you are not satisfied with your purchase for any reason we will gladly offer to replace your item or provide you with a full refund!

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Group of "Windblown Lightning" specimens, natural lighting, against black velvet	"African Tree" discharge illuminated by our DK25X75W white LED walnut light base	"African Tree" specimen lit by high power BD750MC multicolor light base
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Another "African Tree", in natural light	"African Tree" illuminated by an older multi-color light base	Another "Windblown Lightning", side view, illuminated by an older multi-color light base
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A "Windblown Lightning" specimen illuminated by an older multi-color light base	An "African Tree" specimen on a BD751MC multi-color light base	Another dendritic "Windblown Lightning" specimen on an older multi-color light base
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"Heavy Weather" Specimen Note:  some charring  in the heavy discharge areas on right hand side	"Parallel Planes" specimen has a single center discharge root, illuminated a multicolor light base	Another view of previous prism showing dendritic structure of the discharge layers.
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"Heavy Weather" (above) - note slight charring  in heavier discharge areas, lower plane	Manually discharging one of the layers	Secondary discharges may persist for 20-30 seconds after the main discharge
Moving 360 Degree view	360 Degree 3-D Stereoscopic view	(Click above for larger image)
Rotating 3-D view of a "Heavy Weather" sculpture. Once the image has been fully downloaded, drag your mouse over the image to rotate it. (Courtesy Theodore Gray)	Rotating 3-D view of a "Windblown Lightning" sculpture. This pair of images can be used with 3-D glasses! Once the image has been fully downloaded, drag your mouse to rotate various views of the sculpture. (Courtesy Theodore Gray)	"Lightning Trees" specimen illuminated by a multi-color light base
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"African Tree" specimen illuminated by ROT45MC rotating multicolor light base	"African Tree" specimen illuminated by BD751MC multicolor light base	Same "African Tree" specimen illuminated by BD751MC multicolor light base