Bending Light to Communicate

Lasers can be used for many purposes such as targeting and communication. Light is refracted (“bent”) as it travels from one medium to another.  This can be demonstrated by a straw appearing to be “bent” when placed into a glass of water. Throughout this inquiry STEM lesson, student will have students investigate and apply lasers, Snell’s Law and Trigonometry.  Using the Engineering Design Process, they verify Snell’s Law. They combine this knowledge with the Engineering Design Process to construct a laser communication system designed to “hit” a designated target submerged in water.

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