3rd December — Neon signs and traffic lines

Sparrho Advent Calendar 2017

Illustrated by Sam O’Donovan-Jones

On the third day of December, French physicist George Claude gave to the world — neon lights. This type of lighting, produced by passing an electric current through neon gas inside a vacuum tube, was first demonstrated in 1910 at the Paris Motor Show.

When neon signs first started appearing in America in the 1920s, people couldn’t believe their eyes, calling it ‘liquid fire’: traffic congestion got so bad around the signs that the police had to be called in.

On Sparrho.com: 
Learn about nature’s neon lighting, photoluminescence, and how it works

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