Part

 1 I  | Introduction - The Conservation Of Force~Introductory Lecture To
 2 I  |          how to tame the impetuous force of steam, and to make it
 3 I  |         Law of the Conservation of Force, a term the meaning of which
 4 I  |     relation of heat to mechanical force, which supplied the chief
 5 I  |      asserts, that the quantity of force which can be brought into
 6 I  |          understood by quantity of force; or, as the same idea is
 7 I  |         varied kind as regards the force or ease, the form and rapidity,
 8 I  |   invisible, all these acquire the force which moves them in the
 9 I  |         doing any work; the moving force of the muscle must be at
10 I  |            most various degrees of force and rapidity, from powerful
11 I  |             they all need a moving force, which sets and keeps them
12 I  |           hand all need the moving force of the muscles.~Now, the
13 I  |         and duration of the moving force required. These differences,
14 I  |   concerned with an expenditure of force.~This very expression which
15 I  |          fluently, 'expenditure of force,' which indicates that the
16 I  |           which indicates that the force applied has been expended
17 I  |            the store of its moving force for the time exhausted.
18 I  |           now consider that moving force which we know best, and
19 I  |          weight possesses a moving force, but that it must necessarily
20 I  |           necessarily sink if this force is to act; that by sinking,
21 I  |            by sinking, this moving force is exhausted, but by using
22 I  |          another extraneous moving force - that of the arm - its
23 I  |          and it has to furnish the force for the small impulses and
24 I  |             there must be a moving force, which, though small, must
25 I  |           magnitude of any driving force, for any given machine,
26 I  |         such a weight as a driving force would not indeed be practically
27 I  |          of water we use as moving force, the most direct application
28 I  |        means of some other natural force. If it can flow from the
29 I  |            remainder of the moving force is used up, which is due
30 I  |    considered as sources of moving force.~Water power was the first
31 I  |            was the first inorganic force which man learnt to use
32 I  | comparatively small expenditure of force. We have all of us often
33 I  |            by the same exertion of force as each one of the four
34 I  |          measurable expenditure of force, the heavy weight has been
35 I  |            appreciable exertion of force, to place it in the position
36 I  |           water wheel. The driving force depends here on the velocity
37 I  |           with the most tremendous force.~If I lay the head of a
38 I  |        velocity, it acquires a new force, which can overcome far
39 II |           II - Velocity And Motive Force~These examples teach us
40 II |      moving mass can act as motive force. In mechanics, velocity
41 II |          in so far as it is motive force, and can produce work, is
42 II |           apt to suggest to us the force of living beings. Also in
43 II |           arm must exert a certain force to bring the weight to a.
44 II |           let it go, it obeys this force of gravity and returns to
45 II |          the spring we consume the force of the arm; this has to
46 II |     overcome the resisting elastic force of the spring as we wind
47 II |            we have to overcome the force of gravity which the weight
48 II |            arrow; it imparts to it force in the form of velocity.
49 II |            expanding with enormous force they propel the bullet,
50 II |            measuring the expansive force of heated gases. If not
51 II |         supply the necessary crude force; thus the more intelligent
52 II |         the more intelligent human force may be spared for better
53 II |          seen that the quantity of force which can be produced by
54 II |         law of the Conservation of Force to all natural processes.
55 II |         law of the conservation of force with the name of Mechanical
56 II |          retarded by any resisting force would continue to move to
57 III|     substances.~We may regard this force as an attractive force between
58 III|        this force as an attractive force between the two, which,
59 III|          other. In combustion this force acts; the carbon and oxygen
60 III|            of oxygen, and also the force of affinity quite as strong
61 III|          raised by some extraneous force. When the carbon has been
62 III|         saturated with oxygen. The force of affinity, therefore,
63 III|      formed during combustion, the force of affinity is exerted between
64 III|       which transfers the chemical force of the zinc uniting with
65 III|            overcoming the chemical force of hydrogen and oxygen.~
66 III|          but only by using another force, that of oxidising zinc.~
67 III|    interesting, for the mechanical force of the arm which turns the
68 III|           chemical into mechanical force the magneto-electrical machine
69 III|      machine transforms mechanical force into chemical.~The application
70 III|            for work of one natural force is destroyed, it is transformed
71 III|           aid of any other natural force which is capable of work.
72 III|       instead of this, of chemical force; and, conversely, when heat
73 III|          of chemical or mechanical force; and, again, when chemical
74 III|          and, again, when chemical force disappears, an equivalent
75 III|   inorganic natural forces working force may indeed disappear in
76 III|       nature amounts to this, that force can change its form and
77 III|           once for all, a store of force which is not altered by
78 III|            of any external driving force. The solution of this problem
79 III|         law of the conservation of force, and this law might also
80 III|           motion is possible, that force cannot be produced from
81 IV |           and of the universe. The force of falling water can only