Carbon–fluorine bondThe carbon–fluorine bond is a polar covalent bond between carbon and fluorine that is a component of all organofluorine compounds. It is one of the strongest single bonds in chemistry (after the B–F single bond, Si–F single bond, and H–F single bond), and relatively short, due to its partial ionic character. The bond also strengthens and shortens as more fluorines are added to the same carbon on a chemical compound. As such, fluoroalkanes like tetrafluoromethane (carbon tetrafluoride) are some of the most unreactive organic compounds.
Informatique quantiqueL'informatique quantique est le sous-domaine de l'informatique qui traite des calculateurs quantiques et des associés. La notion s'oppose à celle d'informatique dite « classique » n'utilisant que des phénomènes de physique classique, notamment de l'électricité (exemple du transistor) ou de mécanique classique (exemple historique de la machine analytique). En effet, l'informatique quantique utilise également des phénomènes de la mécanique quantique, à savoir l'intrication quantique et la superposition.
Classical republicanismClassical republicanism, also known as civic republicanism or civic humanism, is a form of republicanism developed in the Renaissance inspired by the governmental forms and writings of classical antiquity, especially such classical writers as Aristotle, Polybius, and Cicero. Classical republicanism is built around concepts such as liberty as non-domination, self-government, rule of law, property-based personality, anti-corruption, abolition of monarchy, civics, civil society, common good, civic virtue, popular sovereignty, patriotism and mixed government.