large/12904/worldswithinworlds_v1-3_1904_librivox_64kb_mp3/worldswithinworlds_01_asimov_64kb_13
large/12904/worldswithinworlds_v1-3_1904_librivox_64kb_mp3/worldswithinworlds_01_asimov_64kb
English
12904
The atoms of one element were different from the atoms of every other element. The chief difference between the various atoms lay in their mass, or weight. THE ATOMS OF ONE ELEMENT WERE DIFFERENT FROM THE ATOMS OF EVERY OTHER ELEMENT THE CHIEF DIFFERENCE BETWEEN THE VARIOUS ATOMS LAY IN THEIR MASS OR WEIGHT
t has flooded the earth for billions of years. The sun, you see, is a vast nuclear engine, and the warmth and light that the sun radiates is the product of nuclear energy. In order for man to learn to produce and control nuclear energy himself, however (something that did not take place until this century), three lines of investigation—atoms, electricity, and energy—had to develop and meet. We will begin with atoms. ATOMIC WEIGHTS As long ago as ancient Greek times, there were men who suspected that all matter consisted of tiny particles which were far too small to see. Under ordinary circumstances, they could not be divided into anything smaller, and they were called “atoms” from a Greek word meaning “indivisible”. It was not until 1808, however, that this “atomic theory” was really put on a firm foundation. In that year the English chemist John Dalton (1766-1844) published a book in which he discussed atoms in detail. Every element, he suggested, was made up of its own type of atoms. ODED THE EARTH FOR BILLIONS OF YEARS THE SUN YOU SEE IS A VAST NUCLEAR ENGINE AND THE WARMTH AND LIGHT THAT THE SUN RADIATES IS THE PRODUCT OF NUCLEAR ENERGY IN ORDER FOR MAN TO LEARN TO PRODUCE AND CONTROL NUCLEAR ENERGY HIMSELF HOWEVER SOMETHING THAT DID NOT TAKE PLACE UNTIL THIS CENTURY THREE LINES OF INVESTIGATION ATOMS ELECTRICITY AND ENERGY HAD TO DEVELOP AND MEET WE WILL BEGIN WITH ATOMS ATOMIC WEIGHTS AS LONG AGO AS ANCIENT GREEK TIMES THERE WERE MEN WHO SUSPECTED THAT ALL MATTER CONSISTED OF TINY PARTICLES WHICH WERE FAR TOO SMALL TO SEE UNDER ORDINARY CIRCUMSTANCES THEY COULD NOT BE DIVIDED INTO ANYTHING SMALLER AND THEY WERE CALLED ATOMS FROM A GREEK WORD MEANING INDIVISIBLE IT WAS NOT UNTIL EIGHTEEN O EIGHT HOWEVER THAT THIS ATOMIC THEORY WAS REALLY PUT ON A FIRM FOUNDATION IN THAT YEAR THE ENGLISH CHEMIST JOHN DALTON SEVENTEEN SIXTY SIX EIGHTEEN FORTY FOUR PUBLISHED A BOOK IN WHICH HE DISCUSSED ADAMS IN DETAIL EVERY ELEMENT HE SUGGESTED WAS MADE UP OF ITS OWN TYPE OF ATOMS
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