Fotografia tirada na noite de domingo (24) mostra a fumaça negra expelida pelo vulcão Sinabung, na Ilha de Sumatra, na Indonésia, em contraste com o céu estrelado - http://epoca.globo.com/tempo/fotos/2013/11/fotos-do-dia-25-de-novembro-de-2013.html (Foto: AP Photo/Binsar Bakkara)
World War One antiseptic may become 21st century saviour: "Researchers in Melbourne Australia show the coal tar-derived acriflavine activates the immune system even going so far as to offer protection against the common cold." http://ift.tt/2g6JJJj
This image shows one of Gestalt's laws, the law of common fate. Even though it's clear that it's a human swimming with turtles, we group them together as a unit because they are all moving in the same direction.