Neon Lights

Get close to the neon lights and you’ll start glowing with joy.
 
The color of the light depends on the gas in the sealed glass tube with a metal electrode at each end. High voltage power ionizes the gas to emit colored light from the tube.
 
So scientific, you never thought of this, right?
 
Neon lights are named after neon, a noble gas, which gives off lights in orange, red and pink shades. These lights were globally used for signage and displays between 1920 and 1940.
 
Other gases produce other colors. Hydrogen gives off a deep red hue, helium a bright yellow, carbon dioxide a brilliant white and mercury a stunning blue.
 
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