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Hace 2 días · 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.It is also produced by electric arcs, Cherenkov radiation, and specialized lights, such as mercury-vapor lamps, tanning ...
Hace 1 día · La miel de abeja es uno de los superalimentos más antiguos y consumidos desde los albores de la humanidad. Valorado no solo como un excelente endulzante natural, sino también por sus enormes propiedades nutritivas y medicinales, el almíbar producida por las abejas a partir del néctar de las flores se ha ganado un sitial en el tratamiento de diversas enfermedades.
6 de may. de 2024 · Ultraviolet light comes from the Sun, but it can also bounce off of other surfaces like water, snow, and concrete. That means that even if you’re under an umbrella, you can still get a sunburn. Ultraviolet light can also go through clouds, so you can get burned on an overcast day. No fair!
6 de may. de 2024 · We can't see the sun's ultraviolet light with our eyes, but with this simple activity we can observe the effects of UV light. sunscreen-activity View in English
1 de may. de 2024 · Learn the key differences between ultraviolet rays. Understanding these types of ultraviolet rays can help you keep your skin safe from their damaging effects, including an increased risk of melanoma.
28 de abr. de 2024 · The colors of the rainbow are all around us, but so are hues that most of us can't see, including ultraviolet — a wavelength that eludes many humans but, surprisingly, many animals can perceive.
6 de may. de 2024 · Ultraviolet Make Handprint Art Using Ultraviolet Light! We can't see the sun's ultraviolet light with our eyes, but with this simple activity we can observe the effects of UV light.
