Occupational therapy is about helping people do the day-to-day tasks that occupy their time, sustain themselves, and enable them to contribute to the wider community. It is these opportunities to do, which occupational therapy provides, that prove important and meaningful to the health of people.
A burning candle produces a luminous flame. What is the fuel for a burning candle? Why is the flame luminous? The fuel for candles is the wax as well as the oxygen. The candle experiences this type of flame because there is an insufficient amount of oxygen being burned.
Hot objects glow and give off light, just as the coils of a toaster glow red, or the wood and coals of a fire give off light. The colors of a flame actually indicate the local temperature of the gases. At temperatures above 1000 oF objects will glow and give off visible light that we call incandescent. This thermal radiation has only a small portion in the visible (about 5% for a fire) while most of the rest is infrared radiation. You can feel infrared radiation as the heat from a fire. Thermal radiation is the name for electromagnetic radiation emitted by the huge numbers of electrons in hot objects and as such, if the wavelengths of the light are examined, there is a continuous distribution of all wavelengths or frequencies present.