Falling bodies

The Orbits of Freely Falling Bodies.

The Southerly Deviation of Falling Bodies

In the work of previous writers on the subject of this paper the potential function used for that of the earth's gravitational field of force has, in general, not been more than a first approximation, i. e., a development, in the neighborhood of the initial point of the falling body, which includes terms of only the first order in the independent variables. The circle of reference (parallel of ...

Orientation of long bodies falling in a viscoelastic liquid

New experiments on the orientation of a cylinder settling in viscoelastic and pseudoplastic fluids are described in an attempt to identify the main mechanisms which control the orientation of the cylinder as it falls.

Orientation of Symmetric Bodies Falling in a Second-Order Liquid at Nonzero Reynolds Number

We study the steady translational fall of a homogeneous body of revolution around an axis s, with foreand-aft symmetry, in a second-order liquid at nonzero Reynolds (i‚ ) and Weissenberg (G‚ ) numbers. We show that, at first order in these parameters, only two orientations are allowed, namely, those with s either parallel or perpendicular to the direction of the gravity /. In both cases the tra...

Falling Evaporating Bodies as a Clue to Outline the Structureof the b Pictoris Young Planetary System

Transient redshifted events monitored in the spectrum of β Pictoris have been interpreted for many years as resulting from the evaporation of numerous comet-like bodies in the vicinity of this stars. This motivated the investigation of dynamical mechanisms responsible for the origin of these star-grazing comets. Among various ideas, a model involving mean-motion resonances with a jovianlike pla...