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21 Scott de Martinville, Edouard-Léon
SUBJECT AREA: Recording[br]b. 25 April 1817 Paris, Franced. 29 April 1879 Paris, France[br]French amateur phonetician, who developed a recorder for sound waves.[br]He was the descendant of a Scottish family who emigrated to France in 1688. He trained as a printer and later became a proof corrector in printing houses catering predominantly for scientific publishers. He became interested in shorthand systems and eventually turned his interest to making a permanent record of sounds in air. At the time it was already known (Young, Duhamel, Wertheim) to record vibrations of bodies. He made a theoretical study and deposited under sealed wrapper a note in the Académie des Sciences on 26 January 1857. He approached the scientific instrument maker Froment and was able to pay for the manufacture of one instrument due to support from the Société d'Encouragement à l'Industrie Nationale. This funding body obtained a positive report from the physicist Lissajous on 6 January 1858. A new model phonautograph was constructed in collaboration with the leading scientific instrument maker in Paris at the time, Rudolph Koenig, and a contract was signed in 1859. The instrument was a success, and Koenig published a collection of traces in 1864.Although the membrane was parallel to the rotating surface, a primitive lever system generated lateral movements of a bristle which scratched curves in a thin layer of lampblack on the rotating surface. The curves were not necessarily representative of the vibrations in the air. Scott did not imagine the need for reproducing a recorded sound; rather, his intention was to obtain a trace that would lend itself to mathematical analysis and visual recognition of sounds. Obviously the latter did not require the same degree of linearity as the former. When Scott learned that similar apparatus had been built independently in the USA, he requested that his sealed wrapper be opened on 15 July 1861 in order to prove his scientific priority. The contract with Koenig left Scott without influence over his instrument, and eventually he became convinced that everyone else, including Edison in the end, had stolen his invention. Towards the end of his life he became interested mainly in the history of printing, and he was involved in the publishing of a series of books about books.[br]Bibliography25 March 1857, amended 29 July 1859, French patent no. 31,470.Further ReadingP.Charbon, 1878, Scott de Martinville, Paris: Hifi Stereo, pp. 199–205 (a good biography produced at the time of the centenary of the Edison phonograph).V.J.Philips, 1987, Waveforms, Bristol: Adam Hilger, pp. 45–8 (provides a good account of the importance of his contributions to accurate measurements of temporal phenomena).GB-NBiographical history of technology > Scott de Martinville, Edouard-Léon
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22 حتى
حَتَّى \ even: showing a fact from which one may guess other facts: I invited him, but he didn’t even answer my letter (so, clearly, he did not come). It’s cold here, even in summer (so, clearly, it is very cold in winter), showing an unexpected fact: He was very kind; he even lent me some money, (used to give more force to a comparative word): He knows even less than I do. He’s even lazier than you are. in order that: so that; with the purpose that: We hurried in order that we should not arrive late. in order to: so as to; with the intention to: He saved his money in order to buy a bicycle. (no sooner)... than: as soon as: No sooner had I found the key than I lost it again (I lost it very soon after I had found it). so that: used for showing purpose: He helped me with the work so that we’d finish earlier. till: up to the time when: I waited till he was ready. till: up to (a certain time): We waited from 6.30 till midnight. We can’t go till Monday. to: in expressions of place and time; showing where sb. or sth. goes; showing an aim or limit; showing a point that is reached: We walked to school. I was away from June to October. until: up to the time that: She stayed until I returned. \ حَتَّى (مَع أَفْعَل التفضيل) \ still: (with comparative adj. or adv.) even: He’s clever, but his brother is still cleverer (or cleverer still). She ran fast, but he ran still faster (or faster still). \ حَتَّى \ up to: as far as: Can you count up to 100? Up to now he has been living abroad. \ See Also إلى... \ حَتَّى أَنَّ \ that: used for showing result: It was so cold that the water froze. \ حَتَّى أنَّ... \ such: of a kind that produces a certain result: It was such a heavy box that I could not lift it. Its weight was such that I could not lift it. \ حَتَّى الآن \ as yet: up to now: I’ve had no answer as yet. hitherto: up to now; up to the past time already spoken of: Hitherto, he had never been absent from work. so far: until now: We’ve won six games so far. still: up till now: Are you still unmarried?. yet: up to now; by this time: Isn’t she ready yet? It’s the biggest car I’ve yet seen. \ حَتَّى أنَّه \ to: (after enough or too): It’s big enough to fit me. He’s too lazy to work. \ حَتَّى ذلك الوَقْت \ yet: up to then: She said that it wasn’t cooked yet. \ حَتَّى لا \ lest: (old use) for fear that: He ran away lest you should punish him. \ حَتَّى لَوْ \ even if, even though: although: I’m going home, even if I have to walk there. I went home, even though I had to walk. \ حَتَّى النّهاية \ through: all the way: Does this train go right through (to London)?. see through: to last or be enough until the end of something: This food I’ve bought should see us through the weekend. \ حَتَّى الوَقْت الحاضِر \ up to date: up to the present moment; modern; knowing or showing the latest facts: Give me an up-to-date report on political events in South America.
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