22.8 MB (1.6 MB compressed)
3456 x 2304 pixels
29.2 x 19.6 cm ⏐ 11.5 x 7.7 in (300dpi)
CORDELIA MOLLOY / SCIENCE PHOTO LIBRARY CORDELIA MOLLOY / SCIENCE PHOTO LIBRARY
Household items using infrared radiation. These are a toaster, a remote control and an electric heater. Infrared is the portion of the electromagnetic spectrum with a longer wavelength that red light. It is felt as heat. This can be used to toast bread or warm a room. The remote control uses a rapidly pulsed beam of infrared radiation to control other electronic devices. The sensors block out ambient heat radiation and respond only to specific patterns of pulses from the control.
Model release not required. Property release not required.