When the Hoover Dam was completed, it created a huge source of hydroelectric power and zapped a sleepy desert town to life: Las Vegas, Nevada. With the power supply from the dam, Las Vegas soon exploded with vibrant displays. The source of these dazzling lights was electrified neon gas. In this special 360° animation, explore the colorful world of neon signs as Lippy shares what makes them glow.

[TED Ed]