He notes, though, that the type of people drawn to living and working in Antarctica would tend to thrive on what he refers to as "good stress" - in a similar way certain people are drawn to serving in the military.
母亲却表现出不悦：“你怎么总把人心想得那么坏？我学点新东西，发挥点余热，有什么不好？难道我什么都不做，你就高兴了？”
，这一点在同城约会中也有详细论述
Dithering in its simplest form can be understood by observing what happens when we quantise an image with and without modifying the source by random perturbation. In the examples below, a gradient of 256 grey levels is quantised to just black and white. Note how the dithered gradient is able to simulate a smooth transition from start to end.
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