Wells's Natural Philosophy: for the Use of Schools, Academies, And Private Students: Introducing ...
Wells's Natural Philosophy: for the Use of Schools, Academies, And Private Students: Introducing ...
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In our eReader you can find the full English version of the book. Read Wells's Natural Philosophy: for the Use of Schools, Academies, And Private Students: Introducing ... Online - link to read the book on full screen. Our eReader also allows you to upload and read Pdf, Txt, ePub and fb2 books. In the Mini eReder on the page below you can quickly view all pages of the book - Read Book Wells's Natural Philosophy: for the Use of Schools, Academies, And Private Students: Introducing ...
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It consists of a screw, A, work* ing in a nut To a movable bottom-board, D, a sec- ond screw, B, is affixed. This second screw works in the interior of A, which is hoUow, and in which a oorrespondiiig thread is cut When, therefore, A is screwed downward, the threads of B pass upward, and the movable piece, D, urged forward by the screw which has the greater thread, it is drawn back by that which has the less ; so that during each revolution the screw uistead of being advanced through a space eq...ual to the breadth of either of the threads, moves through a space equal to their difference. Suppose the distance between the threads of A to be l-2(Hh of an inch, and of B l-21st of an inch ; then in turning the screw A once^ ibe board D will descend a distance equal to the difference between l-20th and 1-2 1st, or the l-420th of an inch.. Hence, if the circle described by the han- dle be 26 inches while the screw advances l-420th of an inch, the power will be to the weight as 1 to 8,400. ^ 24*7.
What to read after Wells's Natural Philosophy: for the Use of Schools, Academies, And Private Students: Introducing ...?
You can find similar books in the "Read Also" column, or choose other free books by David Ames Wells to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
It consists of a screw, A, work* ing in a nut To a movable bottom-board, D, a sec- ond screw, B, is affixed. This second screw works in the interior of A, which is hoUow, and in which a oorrespondiiig thread is cut When, therefore, A is screwed downward, the threads of B pass upward, and the movable piece, D, urged forward by the screw which has the greater thread, it is drawn back by that which has the less ; so that during each revolution the screw uistead of being advanced through a space eq...ual to the breadth of either of the threads, moves through a space equal to their difference. Suppose the distance between the threads of A to be l-2(Hh of an inch, and of B l-21st of an inch ; then in turning the screw A once^ ibe board D will descend a distance equal to the difference between l-20th and 1-2 1st, or the l-420th of an inch.. Hence, if the circle described by the han- dle be 26 inches while the screw advances l-420th of an inch, the power will be to the weight as 1 to 8,400. ^ 24*7.
What to read after Wells's Natural Philosophy: for the Use of Schools, Academies, And Private Students: Introducing ...?
You can find similar books in the "Read Also" column, or choose other free books by David Ames Wells to read onlineMoreLess
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