How is neon light made?

Neon tubes can be produced in curved artistic shapes to form letters or pictures. It consists of bending the pipe, installing the electrodes and removing the impurities from the pipe. Neon lights were named after neon, a noble gas that emits a popular orange light, but other gases and chemicals are used to create other colors such as hydrogen (red), helium (yellow), carbon dioxide (white), and mercury (blue). Let's take a closer look at the...

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