Of our five senses (sight, hearing, taste, smell, touch), three may be considered forms of "remote sensing", where the source of information is at some distance.

Remote sensing, in its broadest definition, includes ultrasounds, satellite weather maps, speed radar, graduation photos, and sonar - both for ships and for bats!. Hospitals use imaging technology,
including CAT scans, magnetic resonance imaging (3-D imaging of soft tissue), and x-rays for examining our bodies. These are all examples of non-intrusive remote sensing methods.