/ http://www.slideshare.net/images/logo.gif / ºÝºÝߣShare feed for ºÝºÝߣshows by User: josephkouame2 https://cdn.slidesharecdn.com/profile-photo-josephkouame2-48x48.jpg?cb=1523775194 Professeur de Sciences Physiques au Collège Moderne du Plateau, Abidjan