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The force required to move the thing up a slope is directly proportional not to the angle, but to the trigonometrical sine of that angle. To measure this, place the tricycle, or Otto a bicycle will not stand square to the road, and therefore cannot be used pointing in direction at right angles to the slope of the hill, so that it will not tend to move.
Although it was a city, San Juan was, at this period of its history, but a very small place, of little more than a square mile in area, with only two streets at all worthy of the name, these two streets traversing each other at right angles and crossing in the centre of the city, the junction of the two being at the Grand Plaza, or Square, one side of which was occupied by the Cathedral, while the other three sides were given up to the Government and Municipal Buildings.
The centre, diverging, and more minute fibres were perfectly distinct, and the edges regularly indented. These leaves were on the side of the twig or stubble opposite to the sun, meeting it for the most part at right angles, and there were others standing out at all possible angles upon these and upon one another, with no twig or stubble supporting them.
There were two tribes amongst those whom we call Anglo-Saxons, that peopled England after the Britons were driven into Wales namely, as you might guess, the Angles and the Saxons. The Angles ran from the Frith of Forth to the Trent; the Saxons from the Thames southward. The midland counties were in all likelihood a mixture of the two.
The witch-doctoress glanced at the dead bull which lay in the donga, its head twisted up in an unnatural fashion at right angles to the body, and for a moment seemed afraid. Then her rage at the loss of her herd broke out afresh, for she was a person in authority, one accustomed to be feared because of her black arts and her office.
And they were great big smiles, that went into creases all over her fat red face, forming runnels for the great big tears which dropped off at unexpected angles. She was alone in the world. Her only son had died during his military service in Madagascar.
These plutonic rocks are, in many places, intersected by trappean-dikes; in one place, I found ten parallel dikes ranging in an E. and W. line; and not far off another set of eight dikes, composed of a different variety of trap, ranging at right angles to the former ones. I have observed in several primary districts, the occurrence of systems of dikes parallel and close to each other.
The foot-gear then affected by the digger was enormously heavy and had heel-plates almost as thick as horseshoes. The boots were joined in pairs by pieces of string, and hung by these on nails stuck in the rafters, the latter being about twelve feet above the floor. When a pair had to be lifted down, a long bamboo, with a spike at right angles to the end, was placed under the string.
'There's an armchair rock where you can rest and get your wind a bit, and, though Rogers had not lost his wind, he let himself be led, and took the great grey boulder for his chair. Instantly, before he had arranged his weight among the points and angles, both his knees were occupied. 'By Jove, flashed through his mind. 'They've brought me here on purpose. I'm caught! A tiny pause followed.
There are many bodies, vegetable, mineral, and congealed salts, which are formed with certain regular angles and figures. Thus among flowers there are many which have their leaves disposed in ordered polygons, to the number of 3, 4, 5, or 6 sides, but not more. This well deserves to be investigated, both as to the polygonal figure, and as to why it does not exceed the number 6.