The study of light and its relation to sight is called optics.
It is helpful to study the light that comes off stars because the light from a star gives hints of what elements make up a star. This is due to the fact that the light is a wave.
Light is a form of energy.
Observing means to study something in ways such as texture, age, measurements possibly and by sight.
Electromagnetic radiation is "light." Light in various wavelengths (gamma rays through to infrared) comes to us from out in space, and astronomers use instruments called telescopes to capture it and observe the bodies and processes emitting this light.
calendarics
== == Study of Light & Nature of Light is called " OPTICS "
ecology
The study of heat and its relation to mechanical work is called thermodynamics.
radiation
Optics.
psychologist study sight because it helps them have a better understanding of the human brain
Photo emission.
This study would fall under the broad heading of ceramics at least. Optics is a study of light waves and their interactions.
Economics is the study of production, distribution and consumption of wealth. The study of living things in relation to each other is known as ecology.
propagation
sociology is sciences study about relation human and society . Psychology is study about human spirit and behaviour in life
Ecology