protection against sun rays

См. также в других словарях:

• Sun tanning — describes a darkening of the skin (especially of fair skinned individuals) in a natural physiological response stimulated by exposure to ultraviolet (UV) radiation from sunshine or from artificial sources such as a tanning bed. With excessive… …   Wikipedia

• sun screen — protection against the sun; filter against the suns harmful rays …   English contemporary dictionary

• sun protection factor — number for measuring the level of protection of the skin against the suns rays, SPF …   English contemporary dictionary

• Health threat from cosmic rays — The health threat from cosmic rays is the danger posed by cosmic rays generated by the Sun and other stars to astronauts on interplanetary missions.Cosmic rays consists of high energy protons and other nuclei.They are one of the most important… …   Wikipedia

• Sunscreen — (also known as sunblock or suntan lotion [ Nassau County Health Department [http://www.jacksonville.com/tu online/stories/061408/nen 290072672.shtml Jacksonville online] ] ) is a lotion, spray or other topical product that absorbs or reflects the …   Wikipedia

• sunblock — /sun blok /, n. 1. a substance that provides a high degree of protection against sunburn, often preventing most tanning as well as burning, as by obstructing the penetration of ultraviolet rays. 2. a lotion, cream, etc., containing such a… …   Universalium

• Ultraviolet — UV redirects here. For other uses, see UV (disambiguation). UVB redirects here. For the mysterious shortwave radio station in Russia, see UVB 76. For other uses, see Ultraviolet (disambiguation). False color image of the Sun s corona as seen in… …   Wikipedia

• radiation — radiational, adj. /ray dee ay sheuhn/, n. 1. Physics. a. the process in which energy is emitted as particles or waves. b. the complete process in which energy is emitted by one body, transmitted through an intervening medium or space, and… …   Universalium

• Sunglasses — For the Divine Brown song, see Sunglasses (song). Wearing sunglasses under direct sunlight: Large lenses offer good protection, but broad temple arms are also needed against stray light from the sides. Sunglasses or sun glasses are a form of… …   Wikipedia

• Sunburn — A sunburn is a burn to living tissue such as skin produced by overexposure to ultraviolet (UV) radiation, commonly from the sun s rays. Exposure of the skin to lesser amounts of UV will often produce a suntan. Usual mild symptoms in humans and… …   Wikipedia

• Ethereal being — Water nymph by John Collier, 1923. Ethereal beings, according to some belief systems and occult theories, are mystic entities that usually are not made of ordinary matter. Despite the fact that they are believed to be essentially incorporeal,… …   Wikipedia