There is a difference between science and technology. Science is a method of answering theoretical questions; technology is a method of solving {#blank#}1{#/blank#} problems. Science has to do with discovering the facts and relationships {#blank#}2{#/blank#} in the observable natural world and with building up theories that serve to organize these facts and relationships; technology has to do with tools, techniques, and methods for carrying out the {#blank#}3{#/blank#} of science.

    Another difference between science and technology has to do with the {#blank#}4{#/blank#} in each.

    Progress in science does not consider the human factor. Scientists make a study of the universe, try to explain the rules of nature and strive to find out the truth. They can {#blank#}5{#/blank#} pay attention to their own or other people's likes or dislikes or to popular ideas about the fitness of things. What scientists discover may shock or anger people—as did Darwin's theory of evolution. But even a(n) {#blank#}6{#/blank#} truth is more than likely to be useful; besides, we have the choice of refusing to believe it! But hardly so with technology; we do not have the choice of refusing to hear the noises produced by an airplane flying overhead; we do not have the choice of refusing to breathe {#blank#}7{#/blank#}air; and we do not have the choice of living in a non-atomic age. Unlike science, progress in technology must be {#blank#}8{#/blank#} in terms of the human factor. Technology must be our slave and not the {#blank#}9{#/blank#}. The purpose of technology is to serve people in general, not merely some people; and future generation, not merely those who presently wish to gain advantage for themselves. Technology must be {#blank#}10{#/blank#} if it is to lead to a better world.

It is one of the great unsolved {#blank#}1{#/blank#}of this century.

He was being very {#blank#}2{#/blank#}about where he was going.

Museums Rethink What to Do with Their African Art Collections

Recently, a discussion is happening in museums around the world over the volume of African art in their collections. Officials in Germany and the Netherlands have announced plans to return art and artifacts (文物) taken from Africa during the{#blank#}1{#/blank#}period. And more museum staff are meeting on the topic across Europe.

According to the most commonly{#blank#}2{#/blank#}figures from UNESCO（United Nations Educational, Scientifie and Cultural Organization）, 90% to 95%of sub-Saharan cultural artifacts are{#blank#}3{#/blank#}outside Africa. Many were taken by force long ago and ended up in museums across Europe and North America.

At the Africa Museum in Belgium, director Guido Gryseels says 85 percent of the-museum's collection comes from the Congo-the site of Belgium's{#blank#}4{#/blank#}colony in Central Africa. For decades, Congolese leaders have asked for these objects to be returned. Most of their{#blank#}5{#/blank#}, and those by African countries to other museums, have been refused.

But recent events in Europe have{#blank#}6{#/blank#}the possibility of returns at a much larger scale. In addition to the plans announced in Germany, last year France conducted a study of how much African art French museums are holding and made{#blank#}7{#/blank#}about what to do with it.

The study recommended the return of a wide range of objects taken by force. The suggestion got mixed{#blank#}8{#/blank#}in France, where there are at least 90000 African items in museums.

In France, some people have suggested returns could leave shelves{#blank#}9{#/blank#}in French museums. Cecile Fromont, a French historian of Central African art, says that's not going to happen. One way of thinking about it, she says, is that more African art can go on display.

However, Guido Gryseels of the Africa Museum in Belgium{#blank#}10{#/blank#}that attitudes are changing. He says he's in discussion with the Congo to return works.