TeachEngineering
Teach Engineering: Biomimicry: Echolocation in Robotics
Students use ultrasonic sensors and LEGO MINDSTORMS NXT robots to emulate how bats use echolocation to detect obstacles. They measure the robot's reaction times as it senses objects at two distances and with different sensor threshold...
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Ron Reason: Design With Reason
This site from Ron Reason is a very good site devoted to newspaper designs and articles pertaining to them. Offers tips on designs and interesting articles with photos.