Staple Dietary Ingredients Secured | My Web Site Page 264 Chapter 02 Page 05Formidable Quad chose the topics covered by Staple Dietary Ingredients Secured | My Web Site Page 264 without reflecting upon the choices others have made. Practicing strange rites in broad daylight so that your neighbors believe you have traveled far around the world in your youthful adventures is another way to look at things in a different light. |
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A few examples drawn from these essays will prove what I mean. On the very first page, in the first line of the second paragraph we have the word "often" coming after the word "experience," instead of before it. He had written "experience," he desired to qualify it, and he did not go back to do what should always be done in plain English, and what indeed distinguishes plain English from almost every other language--to put the qualification before the thing qualified; a peculiarly English mark in this, that it presupposes one's having thought the whole thing out before writing it down. |
Let us attempt to visualize the conditions which we think exist in a newly-formed star of average mass. It should be essentially spherical, with surface fairly sharply defined. Our Sun has average specific gravity of 1.4, as compared with that of water. The average density of the very young star must certainly be vastly lower; perhaps no greater than the density of our atmosphere at the Earth's surface; it may even be considerably lower than this estimate. The diameter of our Sun is 1,400,000 kilometers. The diameter of the average young star may be ten or twenty or forty times as great. The central volume or core of the star is undoubtedly a great deal denser than the surface strata, on account of pressure due to the star's own gravitational forces. The conditions in the outer strata should bear some resemblance to those existing in the gaseous nebula. |
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About the same time, Jacob Woolf built a boiler of large horizontal tubes, extending across the furnace and connected at the ends to a longitudinal drum above. The first purely sectional water-tube boiler was built by Julius Griffith, in 1821. In this boiler, a number of horizontal water tubes were connected to vertical side pipes, the side pipes were connected to horizontal gathering pipes, and these latter in turn to a steam drum. In 1822, Jacob Perkins constructed a flash boiler for carrying what was then considered a high pressure. A number of cast-iron bars having 1½ inches annular holes through them and connected at their outer ends by a series of bent pipes, outside of the furnace walls, were arranged in three tiers over the fire. The water was fed slowly to the upper tier by a force pump and steam in the superheated state was discharged to the lower tiers into a chamber from which it was taken to the engine. | ||
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