Jul 4, 2024
One of the cool “inventions” of the 19th century were Geissler's low-pressure gas tubes, very similar to today's neon tubes. They soon became a toy to have at any self-respecting high society party.
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One of the cool “inventions” of the 19th century were Geissler's low-pressure gas tubes, very similar to today's neon tubes. They soon became a toy to have at any self-respecting high society party.
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