The infrared spectum since this is attributed to heat.
All types of cameras, pinhole and those using optical lenses, use light which is an electromagnetic radiation
Tranverse waves.
all waves travel through water, some better than others, sound waves travel very well. Many time because water is denser than air the waves are subject to diffraction and reflection off thermal boundaries and around physical barriers.
A radio altimeter bounces radio waves off the ground to detect elevation.
An electromagnetic wave, such as light.An electromagnetic wave, such as light.An electromagnetic wave, such as light.An electromagnetic wave, such as light.
Radiation is the thermal of energy by electromagnetic waves through the vacuum of space.
By electromagnetic waves.
Sunlight.
Thermodynamics
Electromagnetic waves.
radiation or radiant transfer
Different devices are used to detect different frequency ranges of electromagnetic waves. You simply can't use the same device to detect x-rays, than you would use to detect radio waves, for example.
All types of cameras, pinhole and those using optical lenses, use light which is an electromagnetic radiation
visible light spectrum
Convection
Electromagnetic radiation is simultaneously both waves and photons. The waves are perpendicular electrical waves and magnetic waves. Photons are massless particles. At lower frequencies/energies the waves are the easier to detect phenomenon, at higher frequencies/energies the photons are the easier to detect phenomenon, but it is always both all the time.
The transfer of heat by electromagnetic radiation is called thermal radiation. It is usually carried out by electromagnetic waves in an energy range just below the visible spectrum, which is the infrared range.