How can you describe your location? You might use a familiar system. You might say, 'I live at 1234 Main Street, Springfield, Ohio.' You could also say, 'I live right behind the Elementary School.' This method uses the school as a point of reference. Another example is, I am at the corner of Maple Street and Main Street. Both streets may be a good reference for anyone living in your town. Scientists must be able to pinpoint a feature they are studying. Scientists use a special system to describe locations. They use latitude and longitude as a reference. Lines of latitude and longitude form a grid. You may have used a grid system while doing graphing. This grid is centered on a reference point. Zero latitude is the equator. Lines of latitude run east to west. They divide the Earth from North to South. Lines of longitude run from north to south. They divide the Earth from East to West. Zero longitude runs through Greenwich, England. You may have heard the term, Greenwich Mean Time, or GMT. The system of latitude and longitude works well for objects that do not move.

Question: "What does GMT stand for and how it is determined?"

Answer: "Great Magazine of Timepieces, determined by user reviews"

Response: no

Even though electronic espionage may cost U.S. firms billions of dollars a year, most aren't yet taking precautions, the experts said. By contrast, European firms will spend $150 million this year on electronic security, and are expected to spend $1 billion by 1992. Already many foreign firms, especially banks, have their own cryptographers, conference speakers reported. Still, encrypting corporate communications is only a partial remedy. One expert, whose job is so politically sensitive that he spoke on condition that he wouldn't be named or quoted, said the expected influx of East European refugees over the next few years will greatly increase the chances of computer-maintenance workers, for example, doubling as foreign spies. Moreover, he said, technology now exists for stealing corporate secrets after they've been "erased" from a computer's memory. He said that Oliver North of Iran-Contra notoriety thought he had erased his computer but that the information was later retrieved for congressional committees to read. No personal computer, not even the one on a chief executive's desk, is safe, this speaker noted. W. Mark Goode, president of Micronyx Inc., a Richardson, Texas, firm that makes computer-security products, provided a new definition for Mikhail Gorbachev's campaign for greater openness, known commonly as glasnost. Under Mr. Gorbachev, Mr. Goode said, the Soviets are openly stealing Western corporate communications. He cited the case of a Swiss oil trader who recently put out bids via telex for an oil tanker to pick up a cargo of crude in the Middle East. Among the responses the Swiss trader got was one from the Soviet national shipping company, which hadn't been invited to submit a bid. The Soviets' eavesdropping paid off, however, because they got the contract.

Question: "Are Europeans spending more or less to combat electronic espionage than the U.S.?"

Answer: "A lot more"

Response: no

On his return to Nuremberg in 1495, Durer opened his own workshop (being married was a requirement for this). Over the next five years his style increasingly integrated Italian influences into underlying Northern forms. Durer's father died in 1502, and his mother died in 1513. His best works in the first years of the workshop were his woodcut prints, mostly religious, but including secular scenes such as The Men's Bath House (ca. 1496). These were larger and more finely cut than the great majority of German woodcuts hitherto, and far more complex and balanced in composition. It is now thought unlikely that Durer cut any of the woodblocks himself; this task would have been performed by a specialist craftsman. However, his training in Wolgemut's studio, which made many carved and painted altarpieces and both designed and cut woodblocks for woodcut, evidently gave him great understanding of what the technique could be made to produce, and how to work with block cutters. Durer either drew his design directly onto the woodblock itself, or glued a paper drawing to the block. Either way, his drawings were destroyed during the cutting of the block.

Question: "How many years after returning to Nuremburg did Durer's father die?"

Answer: "7 years"

Response: yes

The dermis is the inner layer of skin. The dermis has blood vessels and nerve endings. The nerve endings explain why your skin is sensitive. You can sense pain, pressure, and temperature. You cut your finger and it starts to bleed. What has happened? If your skin bleeds, it means you have cut the dermis layer and damaged blood vessels. The cut really hurts. It hurts because of the nerve endings in this skin layer. The dermis also contains hair follicles and two types of glands. Hair follicles are structures where hairs originate. Each hair grows out of a follicle. Hair passes up through the epidermis. It then extends above the skin surface. Oil glands produce an oily substance. The oil is secreted into hair follicles.

Question: "What is the composition of the skin?"

Answer: "Oil glandes and hair follicles"

Response:
no