Preliminary Research
Preliminary Research
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DOI:
10.1177/0145482x5204600306
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发表时间:
1952-03
影响因子:
1.1
通讯作者:
中科院分区:
文献类型:
--
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Now we must go back several years in order to present chronologically the succession of circumstances which enabled Louis Braille to invent his alphabet. During the weekly meeting of the Academy of Sciences on June 28, 1819, the Secretary read to his assembled colleagues a letter from Charles Barbier de la Serre, who announced with many details the "invention of a new machine which engraves a writing of secret combinations without its being necessary to see the equipment, [i.e., in the dark)." The placid academicians, accustomed to strange communications, were not unduly impressed, and without attaching too much importance to the new machine, chose two men to investigate, Messrs. Prony and Lacepede. In May of the following year (some time had been required to study the apparatus), the academicians at last presented their report. We shall spare the reader the entirety of the boring document, but will, however, quote the most important sentence: "This process makes communication between the deaf and the blind possible." Charles Barbier, an artillery captain in Louis XVIII's army, had noticed the difficulties in transmitting orders during night maneuvers. With his inventive mind, he solved the difficulty by combining on thin cardboard dots and dashes in relief, which in combination gave orders to be carried out: "Advance!" "General withdrawal," etc. Thus, no matter how dark, the order could be rapidly deciphered merely by touch. This system was called "night writing." Charles Barbier, prompted by a zeal as sincere as it was disinterested, immediately gave thought to possible