United States or Rwanda ? Vote for the TOP Country of the Week !
Thus two different gaseous masses, enclosed in two separate receptacles which have just been placed in communication, diffuse themselves one through the other, and it is highly improbable that, in their mutual shocks, both kinds of molecules should take a distribution of velocities which reduce them by a spontaneous phenomenon to the initial state.
For a complete knowledge of a star's motion the proper motion and parallax must also be known. When Huggins first applied the Doppler principle to measure velocities in the line of sight, the faintness of star spectra diminished the accuracy; but Vogel, in 1888, overcame this to a great extent by long exposures of photographic plates.
The systematic drift of the photosphere is strictly a drift in longitude; its direction is everywhere parallel to the equator. This fact being once clearly recognised, the "solar tornado" hypothesis at once fell to pieces; but M. Faye perceived another source of vorticose motion in the unequal rotating velocities of contiguous portions of the photosphere.
And now, perhaps, the real significance of the previous paper, in which sea velocities of fifty miles an hour, and land travel at the rate of a hundred, and even cab and omnibus journeys of thirty or forty miles, were shown to be possible, becomes more apparent.
The beams began to eat out a crater in the center, where the rock began to boil furiously under the terrific energy of the heat beams. Then Arcot shut off the heat beams and turned on the molecular ray. The molecules of the molten rock were traveling at high velocities the heat was terrific. Arcot could see that the rock was boiling quite freely.
Even after you see him you won't know anything about where he really is, because we don't know any of the velocities involved our own, his, or that of the beam and we may be right on top of him." "Or, if we are outrunning the beam, we won't see him at all. That makes it nice piloting." "How are you going to handle things when we get there?" "Lock to them and take them aboard if we're in time.
The new theory provides a definition of the congruence of periods of time. The prevalent view provides no such definition. Its position is that if we take such time-measurements so that certain familiar velocities which seem to us to be uniform are uniform, then the laws of motion are true.
Now another time-system, which I will name σ, can be found which is such that rest in its space is represented by the same magnitudes of velocities along and perpendicular to the α-direction in β as those velocities in α, along and perpendicular to the β-direction, which represent rest in π.
These numbers proceed in the progression 1, 2, 3, 4, &c., so that it appears that the velocities acquired by a falling body at different points, are simply as the times of falling.
The two bodies will be of almost equal masses, and will have opposite and approximately equal velocities; hence the resultant fused or gaseous mass will be practically without velocity and will fall directly into the fourteenth sun." "Wouldn't it be easier to destroy it with an explosive copper bomb?" "Easier, yes, but much more dangerous to the rest of our solar system.