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1. lesson22
A Fan in the Air Fog, tiny droplets of water vapor, is the villain of the airports. In an effort to eliminate dense fog from airports, weathermen utilize giant fan, nylon strings, and chemicals dropped from planes or shot upwards from strange machines on the ground. Nothing works as well, though, as a new weapon in the fight against fog: the helicopter. Researchers believe that if warm dry above the fog could somehow be driven down into the humid blanket of fog, the droplets would evaporate. thus clearing the air. In a recent experiment to test their theory the researchers had a helicopter descend into the fog above barely visible Smith Mountain Airport near Roanoke, Virginia. The blades of the helicopter caused the air to circulate downwards and an enormous hole in the clouds opened above the airport. Weathermen predict that with larger, more expensive helicopters they will be able to make the thickest fog vanish.
A New Way to Treat Prisoners The warden of a prison today will readily acknowledge the new trend in prison reform. In an attempt to provide a different brand of justice for society's delinquents, officials now reject the idea that prison should completely deprive the convict of freedom. Thus, in some prisons inmates are allowed to leave the prison grounds to visit their spouses or to pursue their vocation. Even the more unstable convict who may have committed homicide is not penalized as harshly as before. The hope is that if persons emerge from prison less defiant than they do now, society will be the beneficiary.
Protecting Our Health Pick an apple, a tomato, a peach-no worms in the harvest. We are familiar with the abundant use of pesticides by farmers, but today's chemists are becoming uneasy. They calculate that there are 45,000 different pesticides, and all of them can be absorbed by the fruit on which they are sprayed. The chemists estimate that every morsel we eat in the future may contain a deadly quota of pesticide. The tragedy* will come slowly but the threat is real. These government chemists do not suggest that we ban pesticides. They are cautious* and do not easily panic. What is needed, they say, are appropriate, budgeted* doses that will not pollute* our food.
A Cup of Coffee? The drink with the most appeal for Americans is still coffee, but coffee addicts had better be wary of the instant forms. Greedy for customers and confident* they won't lose them, companies will put their product in any instant form-liquid, powder, chips-and the coffee drinker, aware of his misfortune, finds it hard to avoid some of the more wretched instant products. The harsh fact is that an enormous* quantity of instant coffee is being sold, no doubt,* to nourish the popular demand for convenience. A keg of real coffee may become a museum piece as more and more people opt for instant coffee.
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