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Hace 4 días · Ultraviolet radiation,that portion of the electromagnetic spectrum extending from the violet, or short-wavelength, end of the visible light range to the X-ray region. Its wavelengths are between 400 and 10 nanometers. Learn more about ultraviolet radiation.
Hace 1 día · Ultraviolet ( UV) light is electromagnetic radiation of wavelengths of 10–400 nanometers, shorter than that of visible light, but longer than X-rays. UV radiation is present in sunlight, and constitutes about 10% of the total electromagnetic radiation output from the Sun.
Hace 5 días · Ultraviolet radiation is categorized into three main types: UVA, UVB, and UVC. UVA has the longest wavelength and is the most prevalent form of UV radiation that reaches the Earth's surface, while UVC has the shortest wavelength and is mostly absorbed by the Earth's atmosphere.
Hace 5 días · Solar radiation, electromagnetic radiation, including X-rays, ultraviolet and infrared radiation, and radio emissions, as well as visible light, emanating from the Sun. Of the 3.8 × 1033 ergs emitted by the Sun every second, about 1 part in 120 million is received by its attendant planets and their.
Hace 5 días · The Ultraviolet (UV) Index predicts the UV radiation levels on a 1 – 11+ scale. The UV Index provides a daily forecast of the expected intensity of UV radiation from the sun. Learn more about how the UV Index can be calculated and analyzed and sign up for UV index email alerts.
Hace 5 días · Ultraviolet (UV) radiation from the sun poses significant risks to eye health. It can potentially lead to various conditions, such as cataracts, macular degeneration, and even eye cancer. One way to safeguard your eyes from these harmful effects is by wearing sunglasses with proper UV protection.
Hace 1 día · Sunscreen, also known as sunblock [a] or sun cream, is a photoprotective topical product for the skin that helps protect against sunburn and prevent skin cancer. Sunscreens come as lotions, sprays, gels, foams (such as an expanded foam lotion or whipped lotion [4] ), sticks, powders and other topical products.
