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Register a new userErath gravitational field in Syria
حقل الجاذبية في سورية
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يتعلق حقل الجاذبية الأرضية بكتلة الأرض و شكلها و المكان الذي يتم فيه القياس, كما تتأثر القيمة المقاسة في مكان ما بعرض هذا المكان و بسرعة دوران الأرض حول نفسها. قدمنا في هذا البحث عرضا" نظريا" يربط قيمة حقل الجاذبية بالمقادير المذكورة أعلاه, ثم قمنا بحساب قيمة هذا الحقل في بعض المدن السورية. تسمح لنا العلاقات المستخدمة بحساب قيمة ذلك الحقل في أي مكان على سطح الكرة الأرضية. الملاحظة الجوهرية في هذا المجال هي أن قيمة ذلك الحقل تتعلق بعرض المكان و لا تتعلق بطوله.
The Earth's gravity field is related to the Earth's mass and shape and to the position, where we apply the measurement.The measured value in any place depends on the altitude of the place angle and Earth's rotation speed around itself. In the paper we present a theoretical idea connecting the value of gravity with the above mentioned amounts. Next we calculated the value of this field in some Syrian cities. The paper is ended by important note, that the obtained relations allowing to calculate the value of the gravity field depends on the place altitude, not on the one's Longitude.
References used
TARDIEUX.R, 2005- champ de gravitational terrestre . ENS science de Lyon .DSM-Physique
SA'NCHEZ.M, 2006- On causality and closed geodesics of compact Lorentzian manifolds and static space times. differential geometry and its applications, 21–32
LAMBERT.W.D,1945- the international gravity formula .united states coast and geodetic survey, 365-374
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