CCMR - Ask A Scientist! - 2 views
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Katie Rigdon on 25 Nov 12The radiation that comes from the sun, known as the solar spectrum, contains the visible sunlight that we see as well as invisible components of "light." The different parts of the solar spectrum have different wavelengths. Some of the solar spectrum is blocked by the earth's atmosphere, including the ozone layer that people are concerned about losing.
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Amanda Jara on 29 Nov 12The Nanomaterials article above mentions something about using smaller particles between 20-200nanometers which make the lotions nearly clear. Because of this, I would hypothesize that it is not as effective. In addition, continuing with this topic, (despite this being from the above article) the nanoparticles seem to have a negative effect on the aquatic life and their environments.
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Jenny Mu on 30 Nov 12hmmm interesting that you say that we could tie in environmental effects into one of our blog posts maybe? Perhaps about the chemical compounds in our personal products, and how they affect the environment? I think sunscreen is a big one, because a lot of the time, people just go into the water right after they put it on, so it can come off into the water and affect aquatic life. Good idea