Curious Kids Every Day: A Daily Educational Podcast · Curious Kids Every Day

How Do Automatic Doors Know You're There?

March 6, 2026·14 min·1 clip

Josh explains that big stores use automatic doors for traffic flow, accessibility, and energy savings, while smaller stores often stick with regular doors due to cost.

Host Josh demystifies how automatic doors work, explaining the sensors (radar and infrared), the controller 'brain', and the motor that make them open. He covers the Doppler effect, safety features like invisible beams, and why big stores use them for traffic flow and accessibility.

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