Lecture

 1 I |      trouble ourselves.~If a gold leaf, or piece of thread, or
 2 I | illustration of this than of gold leaf, because it brings before
 3 I |           Here is a piece of gold leaf. Now if I take a lump of
 4 I |        lump of gold and this gold leaf, and let them fall through
 5 I |         much faster than the gold leaf. But why? They are both
 6 I |         whether sovereign or gold leaf. Why should they not fall
 7 I |       however, show you that gold leaf does fall as fast when the
 8 I |         if I take a piece of gold leaf and hang it in the centre
 9 I |         of falling, then the gold leaf will fall as fast as anything
10 I |        bottle containing the gold leaf to a string, and set it
11 I |          as I please and the gold leaf will not be disturbed, but
12 I |   experiment: if I raise the gold leaf in this way [pulling the
13 I |       will perceive that the gold leaf is not in the least disturbed.
14 I |         the glass bottle and gold leaf all fall exactly in the
15 I |         have hung a piece of gold leaf in the upper part of this
16 I |          top, of letting the gold leaf loose. Before we let it
17 I |         to put this piece of gold leaf, instead of the paper, on
18 I |         difficult to lay the gold leaf so flat that the air shall
19 I |         of this, because the gold leaf is puckery, but will risk
20 I |       will perceive that the gold leaf will fall as quickly in
21 II|       find that it breaks up into leaf after leaf in a most extraordinary
22 II|         breaks up into leaf after leaf in a most extraordinary
23 II|        split up so curiously into leaf after leaf, and see how
24 II|         curiously into leaf after leaf, and see how that enables