Vietnam or Thailand ? Vote for the TOP Country of the Week !
Updated: May 4, 2025
Thrust the closed end of an empty test-tube into water, and incline the tube. When the inclination is sufficient, horizontal light falling upon the tube cannot enter the air within it, but is totally reflected upward: when looked down upon, such a tube looks quite as bright as burnished silver.
Small doses of the organism have been injected into animals; then, when they have recovered, larger ones, and so on, after the manner of the bacillus of diphtheria, until a powerful antitoxin can be obtained from their blood, very minute quantities of which will promptly kill the bacilli in a test-tube.
The reality to which I refer the appearance in question is a particular group of atoms existing at a particular point in space. The chemist never supposes that the atoms within the walls of his test-tube are identical with those in the vial on the shelf.
Every department of mechanics was stimulated and benefited to an extraordinary degree. Copper for the circuits was more highly refined than ever before to secure the best conductivity, and purity was insisted on in every kind of insulation. Edison was intolerant of sham and shoddy, and nothing would satisfy him that could not stand cross-examination by microscope, test-tube, and galvanometer.
The larger of the two larvæ of the 25th of June, placed in a test-tube with what remained of its provisions, assumed a new form during the first week of the following month. Its skin split along the front dorsal half and, after being pushed half back, left partly uncovered a pseudochrysalis bearing the closest analogy with that of the Sitares.
There is, in fact, a general complaint among the older members of the profession that the rising generation is being trained to neglect and even despise the direct evidence of the senses, and to accept no fact as a fact unless it has been seen through the microscope or demonstrated by a reaction in the test-tube.
But an easy, though rough, chemical proof of the constituents of wood, can be made by placing a few pieces of wood in a medium-sized test-tube, and holding it over a flame. In a short time a certain quantity of steam will be driven off, next the gaseous constituents of wood, and finally nothing will be left but a few pieces of black brittle charcoal.
There has been, always to some extent, but with gathering force in recent years, a natural revolt against this mixture of puritanism, scholasticism, and dilettantism, which made the intellectual side of public school education such a failure except for the few who were born with the spoon of scholarship in their mouths. The irruption of that turbulent rascal, natural science, has perhaps had most to do with humanising our humanistic studies. It was a great step when boys who could not make verses were allowed to make if it was but a smell; and even breaking a test-tube once in a while is more educative than breaking the gender-rules every day of the week. Many of my friends, who label themselves humanists, are in a panic about this, and look upon me sadly as a renegade because I, who owe almost everything to a "classical education," am ready (they think) to sell the pass of "compulsory Greek" to a horde of money-grubbing barbarians who will turn our flowery groves of Academe into mere factories of commercial efficiency. But fear is a treacherous guide. They are the victims of that abstract generalisation of which I spoke at the outset. I check their forebodings by reference to concrete personalities, myself, my children, and the hundreds of boys I have known. And I see more and more plainly, as I study the infinite variety of our mental lineaments and the common stock of human nature and civilised society which unites us, that literature is a permanent and indispensable and even inevitable element in our education; and that moreover it can only have free scope and growth in the expanding personality of the young in a due and therefore a varying harmony with other interests. I and my children and my schoolboys have eyes and ears and hands and even legs! We have, as Aristotle rightly saw, an appetite for knowledge, and that appetite cannot be satisfied, though it may be choked, by a sole diet of literature. We have desires of many kinds demanding satisfaction and requiring government. We have a sense of duty and vocation: we know that we and our families must eat to live and to carry on the race. We resent, in our inarticulate way, these sneers at our Philistinism, commercialism, athleticism, materialism, from dim-eyed pedants on the one hand and superior persons on the other, who have evidently forgotten, if they ever saw, the whole purport of that Greek literature the name of which they take in vain. No! La littérature est une chose qui touche
Even as he waited for the end the thought flashed through his mind that, if he must die, this was the manner of death which he would prefer. The test-tube crashed on the writing-desk, and burst into a million pieces. . . . Jimmy opened his eyes. Things seemed to be much about the same as before. He was still alive. The room in which he stood was solid and intact. Nobody was in fragments.
On the top of the contents, I sprinkle the eggs of the bluebottle, eggs free from the least stain, taken from those laid on the outside of tins baited with meat and not absolutely shut. A similar test-tube is filled with white of egg, but receives no germs. Both are closed with a plug of cotton-wool and left in a dark corner.
Word Of The Day
Others Looking