The methods of science are precis.
What is scientist and what it is not scientist ?
I shall try to explain the differencies.
I resume through these sentences :
La science se distingue de tous les autres modes de transmission des
connaissances, par une "croyance" de base : nous croyons que les
experts sont faillibles, que les connaissances transmises peuvent
contenir toutes sortes de fables et d’erreurs, et qu’il faut prendre
la peine de vérifier, par des expériences.
Science is distinguished from all the other modes of transmission of knowledge, by a basic "belief": we believe that the experts are fallible, that transmitting knowledge can contain all kinds of fables and errors, and that should be taken the trouble to check by experiments.Some principles of criticism.Here some principles of criticism which it is good to have at mind when
one is confronted with a mysterious phenomenon in order not to be made handle or of to handle oneself.
I. The right to the dream has for during the duty of vigilance.Some of our beliefs, although getting a certain wellbeing to us, are
above all the obstacles to knowledge and can sometimes appear harmful for
our freedoms (ex: to adhere to a sect, to ruin themselves to consult an indicator). Thus, at the time
of a seance, it is always wise to wonder:
"Criticist mind... Are you there ?".
II. Unexplained is not unexplainable.Just like an UFO is not a nonidentifiable object flying, of many phenomena
who seem to us strange are not also rare nor as incomprehensible as
we want to believe it well. An absence of explanation for a phenomenon, is not
never the proof of its supernatural nature but only of our incompetence with
to understand. Thus one can be unaware of the existence of the underground siphons and for as much
to take care not to believe in the presence of mind strikers in a house rich in noises.
III. The burden of proof returns to that which affirms it.It is logically impossible to show the inexistence of a phenomenon. Also it is
naturally with that which affirms the existence of an unknown phenomenon to bring the proof of it.
In the question "Why don't you believe in the phantoms? ", it is thus necessary initially to ask:
"And you, why do you believe in it?"
IV. An extraordinary allegation requires a proof than ordinary more.Indeed, more of the assertions leave the known framework, more they must rest on
solid information and of the checks pushed to be credible. To prove
the existence of a "Yeti", one cannot thus be satisfied of a photograph and a trace in snow...
V. The origin of information is fundamental.Who never found himself to defend information which appeared false?
The doubt about the validity of information is essential as long as the source and the contents
original among that Ci are not known "From which comes information? "and" Which brings it back? "
are two questions to be posed if one wants to avoid speculating in wind.
VI. Quantity of evidence is not quality of the proof.Thus, a repeated sentence 1000 times does not become true about it for all that. And several thousands
people being able to confuse a balloon probes with a flying saucer without, for as much,
the extraterrestrial ones did not come to visit us.
A conclusive experimentation is always much more valid than thousands of not checked indices.
VII. Coherence is not a proof.A theory which does not contradict itself does not gain therefore in validity.
For coherent that they are, the theory of the plot (cf JFK, X-Files...) or theories
science fictions (Matrix, Jedi knight...) do not become about it more scientists nor truer.
VIII. The beliefs create illusions.Our culture, our desires, our emotions, in a word our subjectivity, modify largely our perception of the events. One often remembers what one agreed to see and not what there was to see or not. For this reason there is hardly but on the Ness Log which one is inclined to confuse floating tree trunks with a monster.
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Introduction to scientist method.The great theories are only provisional mathematical tools, and cannot thus constitute models which are a faithful representation of Reality that the scientists try to describe.
To think that Science is a search of the truth raises of the ideologic pleasure. Science transforms the world more than it does not seek to reach its truth. A scientific truth is thus what is operational. Low importance if the theory of the gravitation is true, it is what one has of to better describe the phenomena and to draw some from the applications.
This is the main thing.
The best scientific attitude is the will to understand what surrounds us, and to doubt all the ideas to which we take note without the reject. Science must always remained associated the pleasure of learning and understanding.
Criticist mind : Attitude of conscience which does not accept any assertion without wondering about its value and which holds a proposal for true only when it was to établie.To have the critical spirit, it is to analyze the facts of the case and to allot to them a row of priority for the traitement. Someone has an idea of the value of the result. Someone stops in way to evaluate its way of proceeding, and one wonders whether the result has direction. One examines the step to emphasize some the defects and the qualities. The states associated with the critical spirit can be the analysis, the appreciation, discrimination, the understanding, the evaluation, the judgement, perspicacity, the reflexion. The contrary states can be confusion, contradiction, credulity, discontinuity, the inconsistency, the honest indifferency. To be, it is to be critical towards oneself. This is essential and much more enviable than to be believable. When someone is credible, people do not show more spirit critical towards our words... but one can be mistaken, it is dangerous. Criticism is a step of setting in question of the opinions and reality, of the transmitting source (nobody, media, institution, expert, organization...). This step can make it possible to encircle them, distinguish them, locate them compared to the debates, until dismounting logic of it. What is important is not to sanction the errors, but them use. Everyone must be brought to build and defend its own opinions, to become aware of the diversity of the opinions and the sources of information, then to become aware that the argumentation is the tool which legitimates the opinion.
Presentation of the scientific method :The scientific method is a rigorous and objective step studying phenomena starting from an ideal model or to check assumptions which confirm or cancel the theory. A theory is a whole of conjectures which were confirmed by the way of experiment. Simple conjectures are not a theory, they are only speculations. A theory establishes logical bonds of causality between remarks that one describes rationally by means of the mathematics. Science refers only to the facts, and science does not take into account the emotional or cultural implication of the scientist. Each scientific theory is provisional and the new theories are only approximations better than those which have them precedent. The convention first which confers on a knowledge its character scientific it is than one can repeat, to some extent, the discovery ; to remake the observation, to take again the reasoning, to again confront the assumptions with the facts. It we invite to make reproducibility. The single phenomenon observed by a single person cannot thus be the object of a scientific knowledge : the individual mystical experiments through the various religions are an exemple. The theory is not only one formulation in more exact terms of the already acquired knowledge, but still a stimulation to put new questions to improve our knowledge. One "does not believe" not in the rationnality ; one is used for oneself of the rationnality in order to confirm or to cancel the beliefs, the hypothesises. It is not necessary deliberately to confuse the religious faith with the faith within the meaning of confidence. The religious faith is absolute and blind. On the other hand, confidence that I have in sciences is provisional and is confirmed only when it is justified by the experiment. And this confidence can be called in question constantly.
Criteria of the scientific step : Logic and validity of the assumptions/hypothesises : premises, evidence.
Falsifiability: there is a way of proving that an assumption is false.
Replicability: the experiment is reproducible
Exhaustiveness: there are other explanations, in particular simpler, which consolidate the assumption.
Science does not invent anything, it discovers.