lundi 31 octobre 2016

The logic of scientific knowledge

"Normally, science advances by trial and error. When an experiment fails, researchers question assumptions, formulate new ideas and then design better studies."
1/ it is not normally but most frequently
2/ when there is no experiment there is no facts, an experiment should be redone to assess the robustness of results
3/ facts allow human action to be directed toward confident results but uncertainty is always present

4/ scientific researchers  developed methods to reduce uncertainty about interpretation of facts
5/ this uncertainty is easier to reduce in physics as for instance the probability of a bridge to fall down than in biology where individuals are genetically different and interact intensively with the milieu
6/ Science people are aware that theories paradigms and conceptions improved only by controversy and are submitted to falsifiability 

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