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Health effects of sunlight exposure. Exposing skin to the ultraviolet radiation in sunlight has both positive and negative health effects. On the positive side, exposure allows for the synthesis of vitamin D 3. Vitamin D has been suggested as having a wide range of positive health effects, which include strengthening bones [ 1] and possibly ...
John Roberts Tunis (December 7, 1889 – February 4, 1975), "the 'inventor' of the modern sports story", [1]: 11 was an American writer and broadcaster. Known for his juvenile sports novels, Tunis also wrote short stories and non-fiction, including a weekly sports column for the New Yorker magazine.
The only difference is that its title must start with Template:. Once you have made the template—for example Template:foo—you can add {{foo}} to the pages that you want to use it on. Every page using this template uses the same boilerplate text each time that a user visits it. When the template is updated, all pages containing the template ...
Health threats from cosmic rays are the dangers posed by cosmic rays to astronauts on interplanetary missions or any missions that venture through the Van-Allen Belts or outside the Earth's magnetosphere. [ 1][ 2] They are one of the greatest barriers standing in the way of plans for interplanetary travel by crewed spacecraft, [ 3][ 4][ 5] but ...
The truth is, most things aren't actually all that bad for you if you take them in moderation. Prepare to rejoice and check out the round-up gallery above for 10 supposedly bad things that are ...
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Long-term nuclear waste warning messages are communication attempts intended to deter human intrusion at nuclear waste repositories in the far future, within or above the order of magnitude of 10,000 years. Nuclear semiotics is an interdisciplinary field of research, first established by the American Human Interference Task Force in 1981.