If you take a blown-up bladder under water and let go of it, it will fly up to the surface of the water and will swim on it. Just so, when water is boiled in a pot, it becomes light at the bottom, over the fire,—it is turned into a gas; and when a little of that water-gas is collected it goes up as a bubble. First comes up one bubble, then another, and when the whole water is heated, the bubbles come up without stopping. Then the water boils. Just as the bubbles leap to the surface, full of vapory water, because they are lighter than water, just so will a bladder which is filled with hydrogen, or with hot air, rise, because hot air is lighter than cold air, and hydrogen is lighter than any other gases. Balloons are made with hydrogen or with hot air. With hydrogen they are made as follows: They make a large bladder, attach it by ropes to posts, and fill it with hydrogen. The moment the ropes are untied, the balloon flies up in the air, and keeps flying up unt...
Or - Humanism And Realism
The False Principle of Our Education Or - Humanism And Realism By Max Stirner Because our time is struggling toward the word with which it may express its spirit, many names come to the fore and all make claim to being the right name. On all sides our present time reveals the most chaotic partisan tumult and the eagles of the moment gather around the decaying legacy of the past. There is everywhere a great abundance of political, social, ecclesiastical, scientific, artistic, moral and other corpses, and until they are all consumed, the air will not be clean and the breath of living beings will be oppressed. Without our assistance, time will not bring the right word to light; we must all work together on it. If, however, so much depends upon... (From : Anarchy Archives.)
It was easy to foresee that the great revival of Natural Science which our generation has had the happiness to witness for thirty years, as also the new direction given to scientific literature by a phalanx of prominent men who dared to bring up the results of the most complicated scientific research in a shape accessible to the general reader, would necessarily bring about a like revival of Geography. This science, which takes up the laws discovered by its sister sciences, and shows their mutual action and consequences with regard to the surfaces of the globe, could not remain an outsider to the general scientific movement; and we see now an interest awakened in Geography which very much recalls the general interest taken in it by a procee... (From : Anarchy Archives.)