In this research, we study the material point motion, in the field of a
homogeneous and unbounded, material rod. so we present the
Hamiltonian formalization of the problem and study the orbits
located in the plans perpendicular to the rod. We reve
al the
proprieties of symmetry of those orbits, and present the conditions
to its closure.
We also study the material point motion, in the field of a
homogeneous and bounded, material rod. We present the
Hamiltonian formalization of the problem, reveal the practicality of
the plan of symmetry, and we studied the motion in this plan. We
reveal the existence of unbounded or bounded planar orbits; some
of those are closed. We also reveal that when the angular velocity
isn't null, there are not orbits leading to a collision with the rod.
In this paper, we study the gravitational field generated by a
material straight line around itself. We show the simplicity of the
studied field, and we show its relation with the arc of half circle. We
discussed also the subject of attracting two
spacious straight lines,
and we show the absence of relation between the mutual force and
the distance.
Also we study the field generated by a ray, where we present the
different formulas for this field, and we show its geometrics
properties, and its relation to a circular arc sees through it.
Also studied the previous field lines, and we show that it are
parabolas, and we appear by different ways that the equivalent
surfaces are parabolic surfaces of revolution.
In the paper, we study gravitational field generated by a special type of homogeneous material curves that are denoted circumscribed curves.
Characteristic state of these curves is the linking of each one of them to a circle, and the circumscribing
of him around the circle, or an arc of
him, according to a precise meaning.
The circumscribed curve consists of arcs of a circle, and straight segments, their right supports are tangents to the circle. In special case, where this curve is a polygon, the sides are tangents to a circle. In this case, we call the polygon, circumscribed polygon.
The study shows that the center of the circle, around it, a homogeneous material curve circumscribed, is an equilibrium center.
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 a
lso 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.
In this search, we study the gravitational field engendered by a
material segment around itself. In the beginning, we discuss the
concept of the gravitational field generated by arbitrary curve. It turns out
that this field depends on the concept
of linear mass, and is directly relate to the distance of the position, to which we calculate the field from the tangents of curve, and not from the curve itself.
Material segment is a special case of material curves, and characterized by the confusability of all its tangents, that allow simplify the calculations, and find a simplified formula of the field. We end our research by comparing the field of material segment, with a field of appropriate circular arc.
Contrary to what it is expected, it appear in the end that the field of material segment is inversely proportional to the distance from that segment, and not to the square of distance
The geophysical surveys on the Syrian oil fields had begun since (1933);it
continued by the soviet groups (1952-1962) and were completed by the Syrian
national groups. The Derro oil field had a good lot from these studies, because
it was surveyed
and studied by the all known geophysical methods (gravity,
geoelectrics, siesmics, well logging).
This was possiple due to the fact that oil bearing formation in the above
mentioned field lays in very shallow depths, in comparison with the known oil
fields, the geoelectrical method was applied with good results and extreme low
cost.
