The caffeine is removed from green coffee beans, before they are roasted, and there are a number of different processes, all of which affect the roasting process and how long the coffee stays fresh. (Decaf coffee goes stale almost twice as fast as regular coffee.) The first decaffeination method, developed in the early 1900s, used a repetitive rinsing process aided by the chemical benzene, which is no longer used because it is a known cancer-causing agent.
Retina Display is a marketing term developed by Apple to refer to devices and monitors that have a resolution and pixel density so high â roughly 300 or more pixels per inch â that a person is unable to discern the individual pixels at a normal viewing distance.
The retina is the nerve layer that lines the back of the eye, senses light and creates impulses that travel through the optic nerve to the brain. The macula is a small area in the retina that contains special light-sensitive cells and allows us to see fine details clearly.