Curated category
Surveillance
- PoliceThe word police first appeared in English during the early 15th century with meanings that ranged from public policy to state administration.
- ThermographySir William Herschel discovered infrared radiation in 1800 while experimenting with sunlight and thermometers. He found invisible rays beyond the red end of…
- Facial recognition systemIn the 1960s, Woody Bledsoe began a project that required human hands to map every face. A person used a graphics tablet to mark coordinates like pupil…
- Surveillance aircraftIn 1794, a hydrogen-filled balloon named L'Entreprenant floated above the battlefield at Fleurus for nine hours. French officers used this vessel to observe…