Spark discharge figure unknown
Product images of Spark discharge figure
Spark discharge figure
Diagram created by sparking from Lord Armstrongâ€™s machine for producing high tension electricity. These patterns were made in a powder of magnesium oxide (â€˜calcined magnesiaâ€™) and carbon black. The images were then photographed and drawings produced from them.
- Image reference: RS-11612
- The Royal Society
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All products are printed in the UK, using the latest digital presses and a giclée printmaking process.
We only use premium branded inks, and colours are independently verified to last between 100 and 200 years.