Part

 1 I  |           it, and the kind of work produced. But both the arm of the
 2 II |           In both cases no work is produced which my arm did not originally
 3 II |         gained.~Elastic forces are produced in gases by the aid of heat,
 4 II |           raised, and work thereby produced.~The same experiment is
 5 II |     quantity of force which can be produced by a given measure of a
 6 II |         Finally, heat is sometimes produced and sometimes disappears
 7 II |          together to feel the heat produced by friction, and which is
 8 II |     friction.~But heat can also be produced by the friction of liquids,
 9 II |         the cold ice, or have been produced by a change of structure;
10 II |         friction.~Heat can also be produced by the impact of imperfectly
11 II |        work is destroyed, and heat produced in its place.~~
12 III|           of heat which is thereby produced, and has established a definite
13 III| experiments show that when heat is produced by the consumption of work,
14 III|           rotated, the eddies thus produced being broken by a series
15 III|             that is, when work was produced by heat. In order to execute
16 III|    performs work, and this work is produced at the cost of its heat.
17 III|            unchangeable. It can be produced anew from the vis viva of
18 III|         the same amount of work is produced when a weight falls, whether
19 III|           same quantity of heat is produced by the combustion of carbon,
20 III|   considerable quantity of heat is produced; for a given weight of hydrogen,
21 III|           if new effects are to be produced from them.~This we can do
22 III|             This current is itself produced by a galvanic battery. Each
23 III|      product of combustion thereby produced, oxide of zinc, unites further
24 III|            electrical currents are produced, which can be led from the
25 III|            electrical currents are produced by chemical forces.~In all
26 III|            electrical currents are produced by heat in what are called
27 III|        either acquired velocity or produced heat. We might also drive
28 III|            electrical currents are produced by it. Heat can directly
29 III|      perpetual motion could not be produced by the aid of the then known
30 III|     possible, that force cannot be produced from nothing; something
31 IV |         the extinct life which has produced the immense coal deposits