Please its due today It has been said that understanding our history can help us better prepare for our future—a notion that certainly applies to photography. Keeping this in mind, describe the mechanics of early photographic systems, analyzing how they differ from the systems of today and how understanding these past systems can help your craft

State the parts of a variable declaration?

Pp 4.1 design and implement a class called sphere that contains instance data that represents the sphere’s diameter. define the sphere constructor to accept and initialize the diameter and include getter and setter methods for the diameter. include methods that calculate and return the volume and surface area of the sphere (see pp 3.5 for the formulas). include a tostring method that returns a one-line description of the sphere. create a driver class called multisphere, whose main method instantiates and updates several sphere objects.

How is the brightness of oled of the diaplay is controled