Radiation is the only method of heat transfer which doesn't require particles.
Infrared Radiations key characteristics include:
Heat
All objects can emit infrared
All objects can absorb infrared
Hotter objects emit more infrared than cooler objects
It's a type of electromagnetic wave (travel at the speed of light)
Different coloured surfaces emit/absorb differently
Can detect with skin but not eyes
Can detect with a special camera (thermogram)
Comments
No comments have yet been made