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"Neptune has one satellite, at a distance of 202,000 miles, which, like those of Uranus, revolves about its primary in an orbit at a considerable angle to his own in five days twenty-one hours. Both Neptune and Uranus are probably dying suns. "Comets of unknown number travel in long elliptical or parabolic orbits round the sun at great velocities.
We have taken up very lately the views which Æsop hinted at some thousands of years ago, in his quaint parabolic manner, and which Defoe, who lived a century and a half before his time, most clearly enunciated and described. We have found the way, at last, to make small capitals effect the most gigantic results, by encircling them with the magic ties of combination.
He advocated the use of automatic sprinklers in the case of fire, the establishment of parabolic reflectors for concentration of sound, and the further prosecution of experiments by Professor Bell in establishing communication between vessels some distance apart by means of interrupted electrical currents.
This succession of alterations forms a trace behind the obstacle, and in opposition to the line of the centers. Finally, if the obstacle itself emits waves in space that are of less intensity then those which meet it, these little waves will extend in the wake of the large ones, and will form a trace of parabolic form situated upon the line of the centers.
And your own experience is in exact accordance with these parabolic warnings of the Saviour.
This the inventor effected by the simplest means in the world simply a parabolic reflector by which the destructive waves could be sent like a beam of light, but invisible, in any direction and focused upon any desired point. I had the good fortune to be present when this powerful engine of destruction was submitted to its first test. We had gone upon the roof of Mr.
In fact, expanding on it, the Lieutenant assured his hearers that, by means of large parabolic reflectors, luminous groups of rays could be dispatched from the Earth, of sufficient brightness to establish direct communication even with Venus or Mars, where these rays would be quite as visible as the planet Neptune is from the Earth.
As the lesson on a printed page is not affected by the baseness or the pureness of the metal which constituted the type, provided always that the form of the type were appropriate; so the doctrine left for us after the parabolic picture has passed is not dependent for its purity on the material of which the type was formed.
When a comet approaches the sun, the orbit in which it travels indicates that it is moving under the impulse of the sun's gravitation. It is in reality falling in a great parabolic or elliptical curve through space.
BOMB-THROWING TESTS. It is interesting, however, to understand how an aviator knows where or when to drop the bomb from a swiftly-moving machine. Several things must be taken into consideration, such as the height of the machine from the earth; its speed, and the parabolic curve that the bomb will take on its flight to the earth.
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