A radiometer.
Not every relation is a function. But every function is a relation. Function is just a part of relation.
The cubic function.
Range
A formula or graph are two ways to describe a math function. How a math function is described depends on the domain of the function or the complexity of the function.
The light energy is absorbed and dispersed after it hits the radiometer.
The lamp is then scanned using a filter radiometer under computer control.
Radiometer
a radiometer
A radiometer
radiometer
a radiometer
Geothermal
A radiometer.
well the energy ........
potential --.
Someone can buy the cheapest radiometer usually from mass online retailers such as Amazon and eBay that often have and sell radiometers at a cheap price.