Author: United States. Bureau of ReclamationPublisher:
ISBN:
Category : Building materials
Languages : en
Pages : 366
Book Description
Earth Manual
Author: United States. Bureau of ReclamationPublisher:
ISBN:
Category : Building materials
Languages : en
Pages : 366
Book Description
Earth Manual
Author: United States. Bureau of ReclamationPublisher:
ISBN:
Category : Building materials
Languages : en
Pages : 332
Book Description
Practical Physical Chemistry
Author: James Brierley FirthPublisher:
ISBN:
Category : Chemistry, Physical and theoretical
Languages : en
Pages : 198
Book Description
The Forests of the Philippines
Author: Philippines. Bureau of ForestryPublisher:
ISBN:
Category : Forests and forestry
Languages : en
Pages : 574
Book Description
Leibnizens Mathematische Schriften, Herausgegeben Von C.I. Gerhardt ...
Author: Gottfried Wilhelm Freiherr von LeibnizPublisher: Theclassics.Us
ISBN:
Category : Reference
Languages : la
Pages : 438
Book Description
. 1860 edition.: ...pro ipso aequipollens (ut volunt) pondus C ut 1 celeritate ut 2, quod ascendat usque ad C seu ad altitudinem 4 pedum. Itaque solo descensu ponderis A duarum librarum ex altitudine unius pedis 2AH, substitutoque aequipollente, effecimus ascensum librae unius ad pedes quatuor, quod est duplum prioris. Ergo tantundem virium lucrati sumus, seu motum mechanicum perpetuum effecimus, quod utique absurdum est. Nec refert, an per motuum leges actu efficere possimus hanc substitutionem; nam inter aequipollentia etiam mente tuto fieri substitutio potest. Quamquam etiam varias rationes excogitaverimus, quibus actu tam propo quam velis efficeretur, ut vis tota corporis A transferretur in corpus C, antea quiescens, sed quod nunc (ipso A ad quietem redacto) sit solum in motu positum. Unde fieret, ut pro pondere bilibri celeritatis ut 1 successura esset libra una celeritatis ut 2, si haec aequipollerent; unde absurdum oriri ostendimus. Neque ista sane inania sunt, aut in logomachiis consistunt, sed in machinis et motibus comparandis maxiinum usum habent. Nam si quis vim habeat ab aqua vel animalibns vel alia causa, per quam corpus grave centum librarum in motu constanti conservetur, quo intra minuti temporis quartam partem absolvere possit circulum horizontalem diametri triginta pedum; alius vero ejus loco eodem tempore duplum pondus nonnisi dimidium circulum constanter absoivere praestet, minore impensa, idque tibi velut in lucrum imputet; deceptum te ac dimidia virium parte frustratum scito. Sed nunc fugatis erroribus, veras et saue admirandas Naturae leges paulo distinctius in Schediasmatis hujus parte secunda proponemus. XVI, SPECIMEN DYNAMICUM PRO ADMIRANDIS NATURAE LEGIBUS CIRCA CORPORUM VIRES ET MUTUAS ACTIONES DETEGENDIS ET AD SUAS CAUSAS REVOCANDIS. Pars II. Natura corporis, imo substantiae in universum non satis cognita effecerat (quod jam attigimus) ut insignes quidem philosophi nostri temporis, cum corporis notionem in sola extensione...
A Study of Engineering Education
Author: Charles Riborg MannPublisher:
ISBN:
Category : Engineering
Languages : en
Pages : 164
Book Description
Thermodynamic Theory of Affinity: A book of principles
Author: Théophile de DonderPublisher:
ISBN:
Category : Chemical affinity
Languages : en
Pages : 172
Book Description
Free as a Jew
Author: Ruth R. WissePublisher: Wicked Son
ISBN: 1642939714
Category : Biography & Autobiography
Languages : en
Pages : 381
Book Description
First came parents with the good sense to flee Europe in 1940 and the good fortune to reach the land of freedom. Their daughter, Ruth, grew up in the shadow of genocide—but in tandem with the birth of Israel, which remained her lodestar. She learned that although Jewishness is biologically transmitted, democracy is not, and both require intensive, intelligent transmission through education in each and every generation. They need adults with the confidence to teach their importance. Ruth tried to take on that challenge as dangers to freedom mounted and shifted sides on the political spectrum. At the high point of her teaching at Harvard University, she witnessed the unraveling of standards of honesty and truth until the academy she left was no longer the one she had entered.
The Accidental Time Machine
Author: Joe HaldemanPublisher: Penguin
ISBN: 144063565X
Category : Fiction
Languages : en
Pages : 289
Book Description
NOW IN PAPERBACK-FROM THE AUTHOR OF MARSBOUND Grad- school dropout Matt Fuller is toiling as a lowly research assistant at MIT when he inadvertently creates a time machine. With a dead-end job and a girlfriend who left him for another man, Matt has nothing to lose in taking a time-machine trip himself-or so he thinks.
Manpower for research
Author: United States. President's Scientific Research BoardPublisher:
ISBN:
Category : Medicine
Languages : en
Pages : 180
Book Description