2. The Sun and the Earth: thermodynamic situation, renewable energies
The Sun is a "small star" with magnitude M = 4.83, radius R S = 696,000 km and mass 1.99 × 10 30 kg. Its core, at a temperature of around 15 million degrees, is the permanent site of thermonuclear fusion reactions. The energy released is evacuated into space by electro-magnetic radiation, the spectrum of which is shown in figure 5 .
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The Sun and the Earth: thermodynamic situation, renewable energies
From solar radiation to the photovoltaic cell
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Bibliography
- (1) - BECQUEREL (E.) - Mémoires sur les effets électriques produits sous l'influence des rayons solaires. - Compte rendu académie des sciences, p. 561-566, 1 er avril 1839 https://gallica.bnf.fr/ark:/12148/bpt6k2968p/f561.item.zoom ...
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