Technology of the day - Bend Sensor

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This simple sensor detects how much it is being bent. Its simplicity makes it versatile; it can be used to detect vibration, humidity, motion, impact, and air flow. For example, sew it into the arm of a stuffed animal to respond when a child moves the arm, or place it inside the tube of a medical device to monitor the velocity of air through the tube (the faster the air, the more the sensor will bend).

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