있는 것이다.Now that we are back on track with the shuttle, where do we go from here? It's important to have our future in space planned, for the road is an expensive one and we cannot afford to flouder.One obvious dream goal is that of a manned flight to Mars and its satellites. If we accomplish this, we will explore a world that is not too far away and that in some ways is like the ...
of running a vacuum cleaner over it, so to speak. Unfortunately, there doesn't seem any way, in the foreseeable future, of working up an efficient and affordable space-cleaning system.(c) 1988, Los Angeles Times ...
knowledge and this is seized on eagerly.It is not just astrology, There are those who pretend to be able to tell the future by reading palms, or tea leaves, or by dealing with numerology, There are those who try to ensure good luck by carrying rabbits' feet, or horseshoes or "lucky coins." People knock wood and use various other methods of warding off misfortune. All of these silly ...
관련기사 다음 128p)It looks as though every mathematician's favorite unsolved problem may be solved in the near future. Notice that I say 'may'.Let's begin by seeing what the unsolved (since the 17th Century) Problem is. In mathematics, a square number is one that is the product of an integer multiplied by itself. Thus 9 is a square number because it is the product of 3 times 3. Again, ...
ships, for those in charge of the world's radio and television com-munication and so on.Eventally, in the distant future we will have to add a leap-second every single day, at which point we'll just to agree that the day has become a second longer. We can then define the second as a very tiny bit longer than it is now so as to keep the same number of seconds per day.But meanwhile, a leap ...
in the book itself. The essential idea of a book hasn't changed in five millennia and won't change in the foreseeable future. Nothing can substitute for the written word in some portable, more of less permanent form, that can be transferred from hand to hand. You may have heard it said that "A picture is worth a thousand words," but don't you believe it. It may be true on occasion - for ...
되므로, 그것은 평화를 향한 강력한 유인이 될 것이다.We're going to need energy for the indefinite future and Soviet scientists are making plans with this in mind. They are now proceeding with a project to place huge solar power stations in space that would beam electricity to Earth. Although the project has potential military application, it also offers an excellent ...
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