Street light poles are circular because of their stability, surface area, and simplicity.
- Stabilität: Compared with other shapes, a cylinder has a more stable structure. This structure is very necessary to resist the harsh weather.
- Surface area: With the same volume, the cylinder has a larger surface area, which is helpful for the light to diverge.
- Simplicity: The cylinder is a simple shape, and it is convenient for installation and maintenance.
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