Don Ihde called the hypothesis being 'hyped' and referred to clear evidence about the use of optical tools by, ., Albrecht Dürer and Leonardo da Vinci and others. As well the 1929 Encyclopædia Britannica  contains an extensive article on the camera obscura and cites Leon Battista Alberti as the first documented user of the device as early as 1437.  Ihde states abundant evidence for widespread use of various technical devices at least in the Renaissance and . in Early Netherlandish painting .  Jan van Eyck 's 1434 painting Arnolfini Portrait shows a convex mirror in the centre of the painting. Van Eyck also left his signature above this mirror,  showing the importance of the tool. The painting includes a crown glass window in the upper left side, a rather expensive luxury at the time. Van Eyck was rather fascinated by glass and its qualities, which was as well of high symbolic importance for his contemporaries.  Early optical instruments were comparatively expensive in the Medieval age and the Renaissance. 
Shortly before Clarke's resignation, Mr. Trump tweeted praise of Clarke's book, saying he "highly recommended" it.
"There is only the fight to recover what has been lost and found and lost again and again."
In a sense, she’s still in a conversation with Alinsky, who believed that the poor could be organized on their own behalf. Hillary Clinton still seems to believe that the middle classes can do things to make life easier for the poor, and that is the lever she pulls most often. Her decision about the best way to create change ultimately led her down a path that made her a senator; had she made the other decision — to organize the poor — she would not be in government, but rather in that place where she learned so much — the “streets.”
Se tiver alguma dúvida ou questão que pretenda colocar, por favor submeta-nos uma mensagem: