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Why do most umbrellas have a black canopy, and what are the benefits of this design choice

Most umbrellas are black because black color absorbs heat and can block 90% of ultraviolet (UV) light, according to a US study published in JAMA Dermatology. The black color absorbs heat and emits it, maintaining the temperature of the black body. Black umbrellas are also more versatile, as they can be used for both casual and formal occasions. Additionally, black color umbrellas are preferred in summer compared to white ones because black color absorbs the heat rays and prevents them from reaching the user, while white color umbrellas reflect the heat rays and can come down on the user.

The choice of black color for umbrellas is not just about aesthetics, but it is also based on the science of heat absorption and radiation. Black surfaces tend to absorb heat and radiation more than lighter colors, which means that they can become hotter than lighter-colored surfaces when exposed to sunlight. This is because black surfaces have a lower albedo (reflectivity) than lighter-colored surfaces, which means that they absorb more radiation and reflect less of it.

Furthermore, black umbrellas are designed to be opaque to visible and infrared light, which means that they can block out more of the sun's radiation than lighter-colored umbrellas. This is especially important during sunny days, as the sun's radiation can be harmful to the skin and can cause discomfort. By using a black umbrella, the user can stay cooler and more comfortable compared to using a lighter-colored umbrella.

Overall, the benefits of using a black umbrella include better heat absorption, improved UV protection, and increased versatility. While other colors may be more aesthetically pleasing, black umbrellas offer practical advantages that make them a better choice for many users.

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