My Web Site Page 101 Ovations 02Cake Placebo chose the topics covered by My Web Site Page 101 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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BAKHUYZEN, JUFFROUW GERARDINA JACOBA VAN DE SANDE. Silver medal at The Hague, 1857; honorary medal at Amsterdam, 1861; another at The Hague, 1863; and a medal of distinction at Amsterdam Colonial Exhibition, 1885. Daughter of the well-known animal painter. From childhood she painted flowers, and for a time this made no especial impression on her family or friends, as it was not an uncommon occupation for girls. At length her father saw that this daughter, Gerardina--for he had numerous daughters, and they all desired to be artists--had talent, and when, in 1850, the Minerva Academy at Groningen gave out "Roses and Dahlias" as a subject, and offered a prize of a little more than ten dollars for the best example, he encouraged Gerardina to enter the contest. She received the contemptible reward, and found, to her astonishment, that the Minerva Academy considered the picture as belonging to them. |
And thus the mystery of life is again repeated. The union of the living, microscopic bodies of the fertilizing principle with the new laid egg is followed by the growth of the two elements into a living creature, able to eat, to breathe, to see, to feel. In some unknown way the atom of fertilizing principle seems to have contained the whole life of the father-frog, for it can give to his sons and daughters any of his peculiarities, either of color, form, motion, or disposition; and the tiny egg seems to have contained the whole life of the mother-frog, and can give to her sons and daughters any of her peculiarities; though, as is true of all inheritance, the tadpoles, as the young frogs are called, share the natures of both parents, inheriting some peculiarities from the father and others from the mother. |
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If now we take a U-tube depending from a vessel of water (Fig. 4) and apply the lamp to one leg a circulation is at once set up within it, and no such spasmodic action can be produced. Thus U-tube is the representative of the true method of circulation within a water-tube boiler properly constructed. We can, for the purpose of securing more heating surface, extend the heated leg into a long incline (Fig. 5), when we have the well-known inclined-tube generator. Now, by adding other tubes, we may further increase the heating surface (Fig. 6), while it will still be the U-tube in effect and action. In such a construction the circulation is a function of the difference in density of the two columns. Its velocity is measured by the well-known Torricellian formula, V = (2gh)^{½}, or, approximately V = 8(h)^{½}, h being measured in terms of the lighter fluid. This velocity will increase until the rising column becomes all steam, but the quantity or weight circulated will attain a maximum when the density of the mingled steam and water in the rising column becomes one-half that of the solid water in the descending column which is nearly coincident with the condition of half steam and half water, the weight of the steam being very slight compared to that of the water. | ||
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