【正文】 s conversation. Evidently the Chevalier kept his notes of these conversations for many years and referred to them when writing the memoir. Witnesses who lived with the Chevalier in his later life confirmed that he regularly consulted notes and journals when posing the memoir. Third, the Chevalier39。s memoir is pretty accurate overall, and is, by and large, a reliable historical source Let39。 decisions only when the price of one peting products is much higher or lower than the the difference between two products is small ,say , less than 5 percent,as is the case with certified wood, American often do choose on factories other than Americans are being increasingly convinced of the value of preserving and protecting the environment. And third, US Wood panies should definitely pay attention what is going on in the wood business because of foreign consumers but because of foreign petitors. As I just told you,there is a good chance that many American consumers will be interested in ecocertified products, and guess why? If American panies are slow capturing those consumers,you can be sure that foreign panies will soon start crowding into the American markets ,offering ecocerfied wood that domestic panies don39。39。s not. And in practice, the judgments of the group of academics that make these decfsions don39。s easy for errors in factual material to be corrected in an online encyclopedia But with the printed and bound encyclopedia, the errors remain for decades. Second, hacking. Online encyclopedias have recognized the importance of protecting their articles from malicious hackers. One strategy they started using is to put the crucial facts in the articles that nobody disputes in a readonly format, which is a format that no one can make changes to. That way you are making sure that the crucial facts in the articles are reliable. Another strategy that39。t well supported either. You know that mound at Pueblo Alto? It contains lots of other materials besides broken pots, stuff you wouldn39。 。s true. The dinosaur bones also have growth rings. Growth rings are thickening of the bone that indicates periods of time when the dinosaurs weren39。t think those arguments prove that dinosaurs were endotherms. Take the polar dinosaur argument. When dinosaurs lived, even the polar regions, where dinosaur fossils have been found, were much warmer than today, warm enough during part of the year for animals that were not endotherms to live. And during the months when the polar regions were cold, the socalled polar dinosaurs could have migrated to warmer areas or hibernated like many modern reptiles do. So the presence of dinosaur fossils in polar regions doesn39。s why the face is not in partial shadow. So in the original painting, light and shadow are very realistic and just what we would expect from Rembrandt. Finally, the wood panel. It turns out that when the fur collar was added, the wood panel was also enlarged with extra wood pieces glued to the sides and the top to make the painting more grand and more valuable. So the original painting is actually painted on a singie p:ece of wood, as would be expected from a Rembrandt painting. And in fact, researchers have found that the piece of wood in the original form of Portrait of an Elderly Woman in a White Bon is from the very same tree as the wood panel used for another painting by Rembrandt, his Selfportrait with a Hat. TPO4 Reading Endotherms are animals such as modern birds and mammals that keep their body temperatures constant. For instance, humans are endotherms and maintain an internal temperature of 37176。 it took many, many meetings to build the agreement among group members about how they would move the project along. On the other hand, there were other instances where one or two people managed to bee very influential over what their group did. Sometimes when those influencers said That will never work about an idea the group was developing, the idea was quickly dropped instead of being further discussed. And then there was another occasion when a couple influencers convinced the group that a plan of theirs was highly creative. And even though some members tried to warn the rest of the group that the project was moving in directions that might not work, they were basically ignored by other group members. Can you guess the ending to this story? When the project failed, the blame was placed on all the members of the group. TPO3 Reading Rembrandt is the most famous of the seventeenthcentury Dutch painters. However, there are doubts whether some paintings attributed to Rembrandt were actually painted by him. One such painting is known as attributed to Rembrandt because of its style, and indeed the representation of the woman’s face is very much like that of portraits known to be by Rembrandt. But there are problems with the painting that suggest it could not be a work by Rembrandt. First, there is something inconsistent about the way the woman in the portrait is dressed. She is wearing a white linen cap of a kind that only servants would wearyet the coat she is wearing has a luxurious fur collar that no servant could afford. Rembrandt, who was known for his attention to the details of his subjects’ clothing, would not have been guilty of such an inconsistency. Second, Rembrandt was a master of painting light and shadow, but in this painting these elements do not fit together. The face appears to be illuminated by light reflected onto it from below. But below the face is the dark fur collar, which would absorb light rather than reflect it. So the face should appear partially in shadowwhich is not how it appears. Rembrandt would never have made such an error. Finally, examination of the back of the painting reveals that it was painted on a panel made of several pieces of wood glued tog