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Register a new userKinetic properties in the gravitational field of material segments
خصائص تحريكية في حقل جاذبية قطع مستقيمة مادية
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خالد العبد الله( باحث )
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درسنا في هذا البحث حقل الجاذبية الذي تولده قطع مستقيمة مادية حولها. تطرقنا في البداية لحساب الحقل خارج حامل القطعة المادية، أو على حاملها، ثم تطرقنا للحقل الذاتي. درسنا أيضاً قيمة هذا الحقل في النقط الخاصة. درسنا أيضاً الحقل الذي تولده مجموعة من القطع، حيث دققنا في قيمة هذا الحقل في النقاط الخاصة المشتركة، و بينا الحالات التي يكون فيها هذا الحقل منته، أو غير منته. و قدمنا مجموعة من الخصائص التي تخص مركبات هذا الحقل. تطرقنا أيضاً لمفهوم السقوط على القطعة المادية، حيث عرفنا نوع خاص من الحركة دعوناها بالحركة التسلسلية، و بينا شروط تحققها. تمثل هذه الحركة حقيقة حركة السقوط على القطعة المادية.
In this paper, we study the gravitational field generated by a straight material segment around itself. At first we discuss the calculation of the field, outside the support of the segment, and on this support, then we discuss the self field. We also study values of this field in special points. We also study the field generated by a set of segments,, where we interest in the value of this field in the common special points, and show the cases where this field is finite, or infinite. We provide a set of properties concerning the components of this field. We also discussed the concept of falling on the material segment, where we define the particular type of motion which we call successive motion, and we show its conditions. This motion really present a falling on the material segment.
References used
Isaac Newton, Philosophiae Naturalis Principia Mathematica, Edmond Halley, London, 1687
WESTFALL Richard, « Newton », Figures de la science, Flammarion, Paris, 1994
Galileo Galilei, Dialogue sur les deux grands systèmes du monde, Paris, Seuil, 1992
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