Lesson30 Spin-off Technology Some people wonder why countries spend millions of dollars on space projects. They want to know how space research helps people on Earth. Actually space technology helps people on Earth every day. This is called spin-off...
Lesson29 Alcohol Damage to the Young Brain Few teens seem to worry about what alcohol does to their bodies. Cirrhosis of the liver is unlikely to catch up with them for decades, and heart disease must seem as remote as retirement, but recent research...
Lesson28 You Can Be a Super-Achiever Everyone knows about straight-A students. We see them frequently in TV sitcoms and in movies like Revenge of the Nerds. They get high grades, all right, but only by becoming dull grinds, their noses always stuck i...
Lesson27 Learning The attitude toward writing that these students have developed is well illustrated by a story told by the Russian writer Chekhov about a kitten that was given to his uncle. The uncle wanted to make the kitten a champion killer of mi...
Lesson26 Human Brain The human brain is divided into two sides called the right brain and the left brain. The two sides work together, but each one specializes in certain ways of thinking. Each side has its own way of using information to help us thi...
Lesson25 Globalization of Food Diversity In the 1990s, when use of the term globalization had become commonplace, it appeared that the long record of interconnections between peoples and places had greatly intensified over the previous 30 years, prod...
Lesson24 On Employment for the Younger and the Older A study of the results of this survey suggests that older workers are likely to make better employees than younger ones. This conclusion is based partly on a comparison of the views of these two gr...
Lesson23 Night School Each weekday evening, a reverse rush hour takes place in Manhattan's Greenwich Village. While the average New Yorker is trudging home from their job, a few thousand others are piling into the three modern buildings that house th...
Lesson22 Bounty of Love My mother had a habit of keeping my letters, binding them carefully in neat bundles with green tape, but this was her own secret. She never told me she was doing it. In 1957, when she knew she was dying, I was in hospital in O...
Lesson21 Blues and Jazz People from Europe and America brought Africans to America as slaves before and during the nineteenth century. These Africans brought their music with them. After the American Civil War (18611865), the African-American people...
