large/12904/worldswithinworlds_v1-3_1904_librivox_64kb_mp3/worldswithinworlds_01_asimov_64kb_24
large/12904/worldswithinworlds_v1-3_1904_librivox_64kb_mp3/worldswithinworlds_01_asimov_64kb
English
12904
He could not work out the actual masses in ounces or grams, for atoms were far too tiny to weigh with any of his instruments. He could, however, determine their relative weights; that is, how much more massive one kind of atom might be than another. HE COULD NOT WORK OUT THE ACTUAL MASSES IN OUNCES OR GRAMS FOR ATOMS WERE FAR TOO TINY TO WEIGH WITH ANY OF HIS INSTRUMENTS HE COULD HOWEVER DETERMINE THEIR RELATIVE WEIGHTS THAT IS HOW MUCH MORE MASSIVE ONE KIND OF ATOM MIGHT BE THAN ANOTHER
 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. 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.[1] Dalton was the first to try to determine what these masses might be.  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 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 DALTON WAS THE FIRST TO TRY TO DETERMINE WHAT THESE MASSES MIGHT BE
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