Infrared thermography (IRT), thermal imaging, and thermal video are examples of infrared imaging science. Thermographic cameras usually detect radiation in the long-infrared range of the electromagnetic spectrum (roughly 9,000–14,000 nanometers or 9–14 ?m) and produce images of that radiation, called thermograms. Since infrared radiation is emitted by all objects with a temperature above absolute zero according to the black body radiation law, thermography makes it possible to see one's environment with or without visible illumination. The amount of radiation emitted by an object increases with temperature; therefore, thermography allows one to see variations in temperature. When viewed through a thermal imaging camera, warm objects stand out well against cooler backgrounds; humans and other warm-blooded animals become easily visible against the environment, day or night. As a result, thermography is particularly useful to the military and other users of surveillance cameras. Wikipedia, Thermography
See Also
12.29 - Origin and Nature of Heat
12.31 - Heat Generated Through Resistance to Compression
7B.19 - Light and Heat
8.32 - Electroacoustic Thermodynamic Transduction
Atomic Cluster Heating
CHAPTER I. Ancient Ideas of Light and Heat
expanding heat death universe
First Law of Thermodynamics
FORCES DERIVED FROM INTRA-ATOMIC ENERGY - MOLECULAR FORCES, ELECTRICITY, SOLAR HEAT, ETC.
HEAT - Snell
heat death
heat divides electric potential
heat engine
HEAT FROM VIBRATION
heat life
heat multiplication
heat of resistance to tension
Heat pump and refrigeration cycle
heat resistance
Heat
Heat-Thermal Conduction
Infrared
latent heat
Law of Heat
LAW OF THERMODYNAMICS
Laws of Thermodynamics
multiplication of heat
Radiant heat
Russells Laws of Thermodynamics
Second Law of Thermodynamics
solar heat
specific heat
The New Thermodynamics
Thermoacoustic Effect
thermodynamic equilibrium
thermodynamics
Thermoelectric Effect
thermoelectricity
thermomagnetic effect
Third Law of Thermodynamics
WHAT IS HEAT