OpenScience is a community effort by students to bring conceptual explanation and detailed information about various topics in the various fields of science. Students will share their knowledge, research, and ideas about scientific discoveries and the workings of nature as we know it. This wiki will have sections for broader science areas like biology, chemistry, and physics, which will be stubdivided by concept/topic groups. The goal of this wiki is not only to be a repository of scientific knowledge, but also to provide explanations and even lessons such that students can learn about interesting topics outside of the classroom in a way that is coherent and understandable.
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When the atoms of radioactive elements disintegrate, they form new elements with the emission of alpha and beta particles. The rate at which atoms disintegrate depends on how much radioactive element is present. As less and less radioactive isotope is left, the disintegration becomes slower and slower, but it ia never complete. The total life of a radioactive element is infinite, so the rate of radioactive decay of an element is described by its half-life. Read More>>>
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The Andromeda galaxy is our closest galactic neighbor, roughly 2.5 million light-years away. Though it is 140,000 light-years across, it isn’t bright enough to be seen in the night sky by our eyes. If it were brighter, it would appear six times larger than the full moon.
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