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► Exercise 01 | page 90 ❶ Because industrial robots are usually programmed to repeat precise manipulations, such as welding or paint spraying, their working environment is often carefully designed so that intricate sensory feedback is unnecessary — the robot performs its repetitive tasks in an accurate, efficient, but 1 essentially unintelligent way, without having to take much notice of the wor..

► Exercise 01 | page 66 ❶ While timber shares many characteristics with other living resources, it also has some unique aspects. ❷ Timber shares with many other living resources the characteristic 1 that it is both an output and a capital good. ❸ Trees, when harvested, provide a saleable commodity, but 2 leave standing they are a capital good, providing for increased growth the following year. ❹..

► Exercise 07 | page 48 ❶ We tend to think of specific vegetational or fuel types as all being more or less susceptible to fire. ❷ Yet what is also important is what makes up a particular vegetation or fuel complex. ❸ Take, for example, the northern boreal forests that are predominantly made up of large areas of coniferous trees. ❹ The burning history and susceptibility to fire has been found to..

► Exercise 01 | page 42 ❶ Because actions are carried out in all walks of life, they have useful things to say about virtually all that you do. ❷ Start with sports. ❸ Each year, millions of dollars are spent on methods for helping runners run faster, broad jumpers jump farther, pole vaulters vault higher, and so on. ❹ Sports have seen huge advances in the past century, with new records being set..

► Exercise 01 | page 6 ❶ It would be outrageous if three similar people, convicted of the same crime, received radically different penalties: probation for one, two years in jail for another, and ten years in jail for another. ❷ And yet that outrage can be found in many nations — not only in the distant past but also today. ❸ All over the world, judges have long had a great deal of discretion in..

► Exercise 07 | page 12 ❶ A large number of mammalian species, including humans, occasionally work at deceiving others outside their troop or living unit. ❷ To the outsiders, individuals attempt to appear stronger or weaker, healthier or sicker than they really are. ❸ Within human groups, people deceive not only outgroup members but ingroup members as well — spouses, children, village leaders. ❹..

► Exercise 07 | page 24 ❶ The laser is an example of the 4 underratingof the practical implications of a scientific discovery. ❷ When Arthur Schawlow and Charles Townes published their seminal paper describing the principle of the laser in Physical Review in 1958, it produced considerable excitement in the scientific community and eventually won them Nobel Prizes. ❸ However, neither these author..

► Exercise 01 | page 12 ❶ The 1 purity of recycled products plays a key role in explaining the strength of demand for them. ❷ One of the reasons for the high rate of aluminum recycling and the much lower rate of plastics recycling is the differential difficulty with which a high-quality product can be produced from discarded materials. ❸ Whereas bundles of aluminum cans have a relatively uniform..