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| Author: | James Jeans |
| Category: | The Arts Of Music, Singing And Dancing [Edit] |
| Language: | Arabic |
| Publisher: | الهيئة المصرية العامة للكتاب |
| Release Date: | 01 Jan 1997 |
| Pages: | 248 |
| Rank: | 199,982 No 1 most popular |
| Short link: | Copy |
| More books like this book | |
السير جيمس جينز (1877-1946) مؤلف هذا الكتاب فيزيائي وعالم فلك إنجليزي شهير وموسيقولوجي وعالم جمال، يتميز بطريقته الفريدة في عرض الموضوعات العلمية المعقدة لغير المتخصصين بأسلوب بسيط يتفادى فيه بقدر الإمكان المصطلحات الفنية، وفي نفس الوقت، يقدن المعلومات بدقة، وأهم ما يميز أسلوبه هو تلك الروح السافرة المحببة والتبسيط المدهش للمادة الجافة.
والكتاب بذلك يصبح لا غنى عنه لهاوي الموسيقى الجاد، والدارس في نفس الوقت، وعوناً لرجال العلم الذين يجدون صعوبة في تذوق الجمال والأنغام وكل ما لا يخضع لمنطقهم الذي يتداولون به الحقائق العلمية الجافة. ويبدأ الكتاب بمناقشة القدرات البشرية على السمع وتطور الأذن البشرية، ثم تمثيل الأصوات بمنحنيات وفحص الخواص العامة لمنحنيات الصوت، والطرق المختلفة لإصدار الصوت. وعرض لخواص الصوت الصادر وعلاقته بتذبذب الأوتار والمتوافقات وذبذبات الهوا. وفي الفصول الأخيرة يركز المؤلف على انتقال الصوت في قاعة الكونسير من مصدره حتى وصوله للمخ مروراً بطبلة الأذن -التي تصدر أصواتاً هي الأخرى- مع مناقشة نظرية الصوتيات وتحليلها. وقد استقى المؤلف معظم مادته العلمية من كتاب العلامة الشهير "فرديناند فون هيلمهولش (1821-1893)".
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