Scientific laws

A scientific law is a scientific proposition that affirms a constant relationship between two or more variables or factors, each of which represents a property or measurement of specific systems. It is also defined as a constant and invariable rule and norm of things, arising from its first cause or its qualities and conditions. It … Read More

Scientific instruments

posted in: Science | 1

A scientific instrument is an instrument used in science to acquire data, from nanoscale to macroscopic scales. These are mostly measuring instruments (spectrometer for example) or observation (polarizing microscope for example) or, more and more, both at once. Characterizations An … Read More


(Representation of a helium-4 atom with, appearing pink in the center, the atomic nucleus and, in gradient of gray all around, the electronic cloud. The helium-4 nucleus, enlarged on the right, is formed of two protons and two neutrons.) An … Read More

Civil disobedience

posted in: Politics | 0

(Sebastian Loscher: Allegory of Justice (1536)) Civil disobedience is the public and accepted refusal to submit to a law, regulation, organization or power deemed unfair by those who challenge it, while making this refusal a peaceful weapon of combat. The … Read More


posted in: Science | 0

(Phylogenetic trees have the shape of dendrograms, each node of the dendrogram corresponds to a clade. ) Taxonomy (from the Greek: ταξις, taxis, ordering and νομος, nomos, norm or rule) is, in its most general sense, the discipline of classification. … Read More

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