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5 giorni fa · Figure chiave nella storia dell’astrofisica includono scienziati come Gustav Kirchhoff e Robert Bunsen, che hanno gettato le basi dell’analisi spettrale, e Margherita Hack, una delle più famose astrofisiche italiane, nota per le sue scoperte sulle Cefeidi e per il suo ruolo nella divulgazione scientifica.
4 giorni fa · The wave equation is a second-order linear partial differential equation for the description of waves or standing wave fields such as mechanical waves (e.g. water waves, sound waves and seismic waves) or electromagnetic waves (including light waves). It arises in fields like acoustics, electromagnetism, and fluid dynamics.
2 giorni fa · Heidelberg, 23. Mai 2024. Mit der Begründung der Spektralanalyse durch Gustav Kirchhoff und Robert Bunsen und der Geburt der Astrophysik – der Erforschung des Himmels mit physikalischen ...
3 giorni fa · Heat equation. Animated plot of the evolution of the temperature in a square metal plate as predicted by the heat equation. The height and redness indicate the temperature at each point. The initial state has a uniformly hot hoof-shaped region (red) surrounded by uniformly cold region (yellow). As time passes the heat diffuses into the cold region.
5 giorni fa · Kirchhoff's Law, formulated by the brilliant physicist Gustav Kirchhoff in the mid-19th century, states that in thermodynamic equilibrium, the ratio of emissive power to absorptive power is...
3 giorni fa · This principle is known as Kirchhoff's Voltage Law (discovered in 1847 by Gustav R. Kirchhoff, a German physicist), and it can be stated as such: "The algebraic sum of all voltages in a loop must equal zero." By algebraic, it means accounting for signs (polarities) as well as magnitudes.
5 giorni fa · Ruperto Carola Ringvorlesung: 200 Jahre Gustav Kirchhoff – Freigeist. Pionier. Visionär.Vortrag: Physik auf Briefmarken und Straßenschildern: Gustav Robert K...
