Nicho de concretagem ou bicheira - Falhas de concretagem que ocasionam buracos no concreto, devido, principalmente, à falta de vibração. Leia mais em: http://www.ecivilnet.com/dicionario/o-que-e-nichos-de-concretagem.html
Art gives you pleasure when you admire someone else’s work. You don't need to be an artist to understand the benefits of art, but you must try to be an artist yourself; even if you don't believe you have any talent. You have to express your feelings in an artistic way, if not with words, through images and sounds. Art gives you emotional support. When you are an artist yourself, your artistic creations give you personal satisfaction.