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Abstract The publication in 1499 of the Hypnerotomachia Poliphili , attributed to Francesco Colonna, by the publisher Aldo Manuce in Venice, marked the beginning of a learned and original mode of expression whose few surviving productions span a little …

Abstract Dark energy, or the cosmological constant Lambda, was introduced by Einstein in 1917, to describe a model of a static Universe. Wolfgang Pauli soon tried to interpret it as the energy of the quantum vacuum, extrapolated to the Universe, but found …

Abstract The Big Bang theory describes an expanding Universe, in which large structures are formed by gravitational collapse. These are the galaxies, filaments, walls and cosmic voids that surround us. The embryos of these structures are the quantum …

Knowledge of ancient Egyptian essential. …

One-hour lecture   , followed by the seminar. Abstract The new versions of the Nice model are based on the observation that the orbits of the giant planets should be in mutual resonance at the moment of gas dissipation, after the migration phase induced …

Abstract This seminar will present a brand-new version of the Nice model, where the planetary resonant chain is constructed from simulations of planetary migration in a low-viscosity protoplanetary disk. In this scenario, Jupiter and Saturn are captured …

Abstract Aerosols are particles -   solids or liquids   - suspended in the atmosphere. Natural aerosols include dust from desert areas, salt from ocean spray, volcanic ash and semi-burnt particles from fires. Human activities generate other types of …

Abstract The media regularly report that the state of the atmosphere is getting worse, and that mankind is primarily responsible . Scientists now have access to an impressive array of observations (particularly by satellite). But for non-specialists, it's …