School Science and Mathematics, Τόμος 18Smith & Turton, 1918 |
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Σελίδα 17
... tubes " is a request found in certain orders where no test tubes are ordered . The customer may be aware that test tubes range in length from 11⁄2 to 12 inches , and in diameter from 14 to 1 inch ; and that rubber stoppers are made ...
... tubes " is a request found in certain orders where no test tubes are ordered . The customer may be aware that test tubes range in length from 11⁄2 to 12 inches , and in diameter from 14 to 1 inch ; and that rubber stoppers are made ...
Σελίδα 42
... tube , that starch is carbon plus water , and so I found that it was not beyond the comprehension of these children to understand that green tissues in plants make starch out of the carbon in the carbon dioxide of the air and out of the ...
... tube , that starch is carbon plus water , and so I found that it was not beyond the comprehension of these children to understand that green tissues in plants make starch out of the carbon in the carbon dioxide of the air and out of the ...
Σελίδα 67
... tube forty - six feet long . On December 13 , 1647 , Descartes again wrote Father Mer- senne : " I have informed M. Pascal of an experiment to see whether quicksilver rises as high on a mountain top as at the bottom ; I do not know ...
... tube forty - six feet long . On December 13 , 1647 , Descartes again wrote Father Mer- senne : " I have informed M. Pascal of an experiment to see whether quicksilver rises as high on a mountain top as at the bottom ; I do not know ...
Σελίδα 69
... tubes , one inside of the other , which show plainly a vacuum within a vacuum . You saw that the quicksilver in the inner tube stayed suspended at the height which it takes in the ordinary experiment , when it was counter- balanced and ...
... tubes , one inside of the other , which show plainly a vacuum within a vacuum . You saw that the quicksilver in the inner tube stayed suspended at the height which it takes in the ordinary experiment , when it was counter- balanced and ...
Σελίδα 70
... tubes , and all other needful things , and to undertake the laborious journeys whenever it would be necessary , in order to have placid and convenient weather at the mountain top , which does not often happen there ; and as it is also ...
... tubes , and all other needful things , and to undertake the laborious journeys whenever it would be necessary , in order to have placid and convenient weather at the mountain top , which does not often happen there ; and as it is also ...
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Δημοφιλή αποσπάσματα
Σελίδα 179 - It was moved and carried that the Secretary be instructed to cast the ballot of the Association for the officers named and they were declared duly elected.
Σελίδα 361 - And Nature, the old nurse, took The child upon her knee, Saying : " Here is a story-book Thy Father has written for thee." " Come, wander with me," she said, " Into regions yet untrod ; And read what is still unread In the manuscripts of God.
Σελίδα 315 - O gentlemen, the time of life is short ; To spend that shortness basely, were too long, If life did ride upon a dial's point, Still ending at the arrival of an hour.
Σελίδα 436 - Government, or relating to the time within which any rights shall accrue or determine, or within which any act shall or shall not be performed by any person subject to the jurisdiction of the United States, it shall be understood and intended that the time shall be the United States standard time of the zone within which the act is to be performed.
Σελίδα 307 - Nor is it a plea for a temporary enlargement of the school program appropriate merely to the period of the war. It is a plea for a realization in public education of the new emphasis which the war has given to the ideals of democracy and to the broader conceptions of national life.
Σελίδα 380 - First, that this intolerable Thing of which the masters of Germany have shown us the ugly face, this menace of combined intrigue and force, which we now see so clearly as the German power, a Thing without conscience or honor or capacity for covenanted peace...
Σελίδα 116 - Just so it is in the mind; would you have a man reason well, you must use him to it betimes, exercise his mind in observing the connection of ideas and following them in train. Nothing does this better than mathematics, which therefore I think should be taught all those who have the time and opportunity, not so much to make them mathematicians as to make them reasonable creatures...
Σελίδα 211 - Admission to its sanctuary, and to the privileges and feelings of a- votary, is only to be gained by one means — sound and sufficient knowledge of mathematics, the great instrument of all exact inquiry, without which no man can ever make such advances in this or any other of the higher departments of science as can entitle him to form an independent opinion on any subject of discussion within their range.
Σελίδα 455 - ... eighteenth birthday on the date of the examination. For full information in regard to the scope and character of the examination and for application blanks address the US Civil Service Commission, Washington, DC, or the Secretary of the US Civil Service Board of Examiners at Boston, Mass.; New York, NY; Philadelphia, Pa.; Atlanta, Ga. ; Cincinnati, Ohio; Chicago, 111.; St. Paul, Minn.; St. Louis, Mo.; New Orleans, La.; Seattle, Wash.; San Francisco, Cal; Honolulu, Hawaii; or San Juan, Porto Rico.
Σελίδα 707 - I have mentioned mathematics as a way to settle in the mind a habit of reasoning closely and in train; not that I think it necessary that all men should be deep mathematicians, but that, having got the way of reasoning, which that study necessarily brings the mind to, they might be able to transfer it to other parts of knowledge, as they shall have occasion.