My Web Site Page 005 Ovations 01Cake Placebo chose the topics covered by My Web Site Page 005 without reflecting upon the choices others have made. Flapping your arms and quacking like a duck when people try to run you over in their SUVs is another way to look at things in a different light. |
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The first boiler made of a combination of small tubes, connected at one end to a reservoir, was the invention of another American, John Stevens, in 1804. This boiler was actually employed to generate steam for running a steamboat on the Hudson River, but like all the "porcupine" boilers, of which type it was the first, it did not have the elements of a continued success. Another form of water tube was patented in 1805 by John Cox Stevens, a son of John Stevens. This boiler consisted of twenty vertical tubes, 1¼ inches internal diameter and 40½ inches long, arranged in a circle, the outside diameter of which was approximately 12 inches, connecting a water chamber at the bottom with a steam chamber at the top. The steam and water chambers were annular spaces of small cross section and contained approximately 33 cubic inches. The illustration shows the cap of the steam chamber secured by bolts. The steam outlet pipe "A" is a pipe of one inch diameter, the water entering through a similar aperture at the bottom. One of these boilers was for a long time at the Stevens Institute of Technology at Hoboken, and is now in the Smithsonian Institute at Washington. |
We have said that every substance has its own distinctive spectrum, and it might be thought that, when a list of the spectra of different substances has been prepared, spectrum analysis would become perfectly straightforward. In practice, however, things are not quite so simple. The spectrum emitted by a substance is influenced by a variety of conditions. The pressure, the temperature, the state of motion of the object we are observing, all make a difference, and one of the most laborious tasks of the modern spectroscopist is to disentangle these effects from one another. Simple as it is in its broad outlines, spectroscopy is, in reality, one of the most intricate branches of modern science. |
Of course, the great palace of Whitehall, where the royal patient was lying, was all in confusion. Attendants were hurrying to and fro. Councils of physicians were deliberating in solemn assemblies on the case, and ordaining prescriptions with the formality which royal etiquette required. The courtiers were thunderstruck and confounded at the prospect of the total revolution which was about to ensue, and in which all their hopes and prospects might be totally ruined. James, the Duke of York, seeing himself about to be suddenly summoned to the throne, was full of eager interest in the preliminary arrangements to secure his safe and ready accession. He was engaged night and day in selecting officers, signing documents, and stationing guards. Catharine mourned in her own sick chamber the approaching blow, which was to separate her forever from her husband, deprive her of her consequence and her rank, and consign her, for the rest of her days to the pains and sorrows, and the dreadful solitude of heart which pertains to widowhood. The king's other female intimates, too, of whom there were three still remaining in his court and in his palace, were distracted with real grief. They may have loved him sincerely; they certainly gave every indication of true affection for him in this his hour of extremity. They could not appear at his bedside except at sudden and stolen interviews, which were quickly terminated by their being required to withdraw; but they hovered near with anxious inquiries, or else mourned in their apartments with bitter grief. Without the palace the effects were scarcely less decisive. The tidings spread every where throughout the kingdom, arresting universal attention, and awakening an anxiety so widely diffused and so intense as almost to amount to a terror. A Catholic monarch was about to ascend the throne, and no one knew what national calamities were impending. | ||
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