Infrared Rays

Humans percept infrared rays as heat. Therefore, you could technically use your body to detect infrared rays without needing any special equipment. Infrared waves have shorter wavelengths and higher frequencies than radio waves. This puts infrared rays in-between Radio waves and visible light on the electromagnetic spectrum.

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Image Produced by an Infrared Camera

Source: “Infrared.” Wired, www.wired.com/wp-content/uploads/2014/08/i_photo6.jpg.

How Infrared Waves Are Used

Security

It is used for night vision and security cameras as Infrared Radiation is visible both during the day or at night.

Heat Detection

Infrared Cameras can detect the heat of an object or organism.

Crime Protection

Police use it to catch criminals and the army uses it to detect the enemy.

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