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[[File:Scientific law versus Scientific theories.png|thumb|upright=1.3|Scientific theories explain why something happens, whereas scientific law records what happens.]]
(By: Alain Painchaud, This article has to be reviewed by competent persons. I do not have the time to do it but here is a forecast of what it should look like. In sciences, you have
4-models and
The facts are observed and can not be denied. The principles forecasts facts and have been verified very often but never been proven. THe Laws of Physics have been proven and are always good, in our referential on Earth. The models are a collections of laws, principles and sometimes facts and are used to modelize something. Finally, a Theory includes laws and everything under. A theory has generally 4 functions, namely: 1)predictive, 2) Unify previous findings 3) Heuristic 4) representation. ). For example, the General Theory of Relativity of Albert Einstein integrates Newtown Law of Gravitation plus it specify that the light can also be attracted. This theory allows to use all laws of physics that are valid in Earth, as long as you apply the geometrical corrections proposed by Albert Einstein. So, a Theory IS NOT A LAW, as falsely said in this article. It has nothing to do with this function, or just a little. As I mention earlier, this article has to be reviewed by a competent person.)
'''Laws of science''' or '''[[scientific law]]s''' are statements that describe or [[prediction|predict]] a range of [[natural phenomena]].<ref>{{OED|law of nature}}</ref> A scientific law is a statement based on [[reproducibility|repeated]] [[experiment]]s or [[observation]]s that describe some aspect of the natural world. The term ''law'' has diverse usage in many cases (approximate, accurate, broad, or narrow) across all fields of [[natural science]] ([[physics]], [[chemistry]], [[biology]], [[geology]], [[astronomy]], etc.). Laws are developed from data and can be further developed through [[mathematics]]; in all cases they are directly or indirectly based on [[Empirical evidence|empirical]] [[evidence]]. It is generally understood that they implicitly reflect, though they do not explicitly assert, causal relationships fundamental to reality, and are discovered rather than invented.<ref name="McComas2013">{{cite book|author=William F. McComas|title=The Language of Science Education: An Expanded Glossary of Key Terms and Concepts in Science Teaching and Learning|url=|date=30 December 2013|publisher=Springer Science & Business Media|isbn=978-94-6209-497-0|page=58}}</ref>
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