• Narcís Vidal i Campderros i l'aurora boreal observada a Barcelona el 1839 

      Barca Salom, Francesc Xavier (2011-10-22)
      Report de recerca
      Accés restringit per decisió de l'autor
      The aurora borealis is an intense light in latitudes near the poles. It is known as the aurora australis in the southern hemisphere. An aurora is arch-shaped and undergoes intense colour changes. It is often accompanied ...