Why is it necessary that the solar concentrators used by solar power plants be able to move throughout the day? to avoid rain damage to track the sun as it moves across the sky to direct sunlight to different parts of the power plant to change the focus area of the incoming radiation

the "power" of a lens is its resolution power, or its ability to distinguish between to closely located points. with the low power lens, it is likely you will see the rough form of the hay and maybe some movement of dots around the hay. however, when observed with the high power lens, the detailed features of the hay become visible and the microbes being grown are more clearly visible.

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