United States or United States Minor Outlying Islands ? Vote for the TOP Country of the Week !
Upward from the earth's surface at the sea level the atoms and molecules of the air become farther apart until, at the height of somewhere between forty and fifty miles, the quantity of them contained in the ether is so small that we can trace little effect from them on the rays of light which at lower levels are somewhat bent by their action.
The compound atom, composed of two or more elementary atoms, Avogadro proposed to distinguish, for purposes of convenience, by the name molecule. It is to the molecule, considered as the unit of physical structure, that Avogadro's law applies. This vastly important distinction between atoms and molecules, implied in the law just expressed, was published in 1811.
We are a little less advanced as regards abnormal substances; that is to say, those composed of molecules, partly simple and partly complex, and either dissociated or associated. These cases must naturally be governed by very complex laws. Recent researches by MM. Van der Waals, Alexeif, Rothmund, Künen, Lehfeld, etc., throw, however, some light on the question.
The molecule has nine parts, of which eight are hydrogen and one oxygen because that is the experimentally known proportion in which oxygen and hydrogen combine to form water. Every substance, however finely divided into molecules, if it is not a simple substance, must therefore have, inside the molecular structure, a further atomic structure.
Within the atom thousands or tens of thousands of these electrons are moving in orderly arrangement, at terrific speed, round and about one another. The amount of energy required to build up a molecule of any degree of complexity is very great, and it is by the breaking down of complex molecules into simple ones that all our mechanical work is done.
I guess it's the decomposition of matter, molecules dancing around in the air or beginning to come apart like the chocolate in one's mouth. Chocolate, however, isn't stinky. Maybe the decomposition of things falling apart and going back to elements like hydrogen, oxygen, and carbon can either stink or be rather fragrant" "Why isn't the chocolate stinky?" "Good question.
If matter were infinitely divisible in this sense, its particles must be imponderable, and a million of such molecules could not weigh more than an infinitely small one. But the particles of that imponderable matter, which, striking upon the retina, give us the sensation of light, are not in a mathematical sense infinitely small.
THE HE-ANCIENT. It imprisons us on this petty planet and forbids us to range through the stars. ACIS. But even a vortex is a vortex in something. You cant have a whirlpool without water; and you cant have a vortex without gas, or molecules or atoms or ions or electrons or something, not nothing.
You cannot help asking yourself how they were built; and familiar as you now are with the notion of a polar force, and the ability of that force to produce structural arrangement, your inevitable answer will be, that those crystals are built by the play of polar forces with which their molecules are endowed.
Is it even common reason to consider that the Soul of man, with all its high musings, its dreams of unseen glory, its longings after the Infinite, is a mere useless vapour, or a set of shifting molecules in a perishable brain?
Word Of The Day