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A vertical axis round which the cups turn passes through the centre of the cross; a train of wheel-work counts up the number of turns which this axis makes, and from the number of turns made in any given time the velocity of the wind during that time is calculated.
There are four elements from which all spirits draw their supplies: their Ego or individuality, Nature, God, and the Future All intermingle in millions of ways and offer themselves in a million differences of result: but one truth remains which, like a firm axis, goes through all religions and systems draw nigh to the Godhead of whom you think! Raphael to Julius.
No! no! you are an idealist, you dream how life should be, and not as it is in truth! I have listened to you, thinking that you would present some forcible argument upon which to found your pretensions, but I hear only the ravings of a lover, who believes the world turns upon the axis of his happiness.
Their way homeward ran along the crest of a lofty hill, whence on the right they beheld a wide valley, differing both in feature and atmosphere from that of the Hintock precincts. It was the cider country, which met the woodland district on the axis of this hill. Over the vale the air was blue as sapphire such a blue as outside that apple-valley was never seen.
"The original cone of the mountain," he continues, "had been truncated at an acute angle to its axis. From our very feet a precipitous mud slope falls away for half a mile or more till it reaches the level.
We are lost in the face of such a wonder. Yet how easily the work is performed! Clinging to the wire gauze, forming, so to speak, the axis of her nest, the Mantis barely moves. She bestows not a glance on the marvel which is growing behind her; her limbs are used only for support; they take no part in the building of the nest. The nest is built, if we may say so, automatically.
If, instead of being perfectly at right angles, the plane subtends with the axis an angle of 89° 59´, we have an ellipse which no human eye, even when aided by an accurate pair of compasses, can distinguish from a circle.
These movements would be all pursued in one common direction, and it follows, from well-known mechanical principles, that each of the subsidiary masses, besides participating in the general revolution around the central body, would also possess a rotation around its axis, which must likewise be performed in the same direction.
He described very clearly how the earth moved round its own axis, and then he added, what cannot fail to be a surprising declaration for those in the modern times who think such an idea of much later origin, that he considered that the earth itself cannot be fixed, but moves as do the other stars in the heavens.
On comparing the intervals between the successive arrivals of Encke's comet at its perihelion, after giving credit, in the most exact manner, for all the disturbances due to the attractions of the planets, it appears that the periods are gradually diminishing; that is to say, the major axis of the comet's ellipse is growing shorter, in a slow but perfectly regular decrease.
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