Freemium app Color Band uses the iPad's front camera as a motion sensor to create a magical experience for children learning about music and color. With a few strokes of their fingers on the iPad ...

【Human Design Solar Repeller】Upon detection of movement by the motion sensor, the ultrasonic speakers are activated to emit a high-frequency sound that causes discomfort to animals, thereby ...

Technology Animal motion-capture studio tracks bird flocks and insect swarms A barn rigged with dozens of cameras and sensors could help scientists better understand the group dynamics and flight ...