School Science and Mathematics, Volum 6School Science and Mathematics Assoc., 1906 |
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Populære avsnitt
Side 619 - Change of motion is proportional to the impressed force, and takes place in the direction of the straight line in which the force acts.
Side 618 - Definition IV An impressed force is an action exerted upon a body, in order to change its state, either of rest, or of uniform motion in a right line. This force consists in the action only, and remains no longer in the body when the action is over. For a body maintains every new state it acquires, by its inertia only.
Side 518 - A line perpendicular to one of two parallels is perpendicular to the other also.
Side 56 - VI., i and 33, already referred to, are proved, and also the proposition " that a straight line parallel to one side of a triangle divides the other two sides in the same ratio,
Side 501 - Divide the weight of the substance in air by the difference between its weight in air and its weight in water; the quotient will be the specific gravity of the substance. Let W = weight of the substance in air; H" = weight of the substance in water; Sp.
Side 253 - ... foundation, in 1867, by four of the pupils of Louis Agassiz, THE AMERICAN NATURALIST has been a representative American Magazine of Natural History and has played an important part in the advancement of science in this country. The journal aims to present to its readers the leading facts and discoveries in the fields of Anthropology, General Biology, Zoology, Botany, Paleontology, Geology, and Mineralogy, and the various subdivisions of those subjects. Annual Subscription, $4.00 Net, in Advance...
Side 253 - Repiints of leading articles will be printed as ordered, the actual cost (with cover, if desired) to be paid for by the author. Reprints must be paid for when ordered. The table below shows the approximate cost of reprints consisting of plain text or text with line engravings.
Side 88 - Teachers, from the Elementary School to the University, find THE JOURNAL almost indispensable, if they would keep in touch with that which is best in geography teaching. Every school library in the country should contain THE JOURNAL OF GEOGRAPHY, for it is not out of date at the end of the month.
Side 721 - Cloth. 12mo, 432 pages. With illustrations and diagrams. Price, 80 cents. American Book Company, New York, Cincinnati and Chicago. This book has been prepared to meet the requirement of teachers and schools for a modern textbook of applied physiology, which should embody the latest results of study and research in biological and chemical science, and the best pedagogical methods in science teaching. It represents a new and radical departure from the old-time...
Side 164 - But to-day there are those who regard gross matter, the matter of everyday experience, as the mere appearance of which electricity is the physical basis ; who think that the elementary atom of the chemist, itself far beyond the limits of direct perception, is but a connected system of monads or sub-atoms which are not electrified matter, but are electricity itself ; that these systems differ in the number of monads which they contain, in their arrangement, and in their motion relative to each other...