Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signaling, supervisory checking, life-saving and teaching apparatus and instruments, namely, apparatuses for eye tracking, for 3D visual cueing, for 3D motion recognition, for semantic sensor web used to annotate sensor data with spatial, temporal, and thematic semantic metadata, for smart 4G transmission of telemetry data, for interactive augmented reality; apparatus and instruments for conducting, ...