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Liquid Drops and Globules, Their Formation and Movements / Three lectures delivered to popular audiences cover

Liquid Drops and Globules, Their Formation and Movements / Three lectures delivered to popular audiences

Chapter 1: LIST OF ILLUSTRATIONS
By Charles R. Darling
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Science - Physics

About This Book

A series of popular lectures examines how liquid masses form, shape, and move, beginning with basic properties like mobility and the elastic behaviour of surfaces, then demonstrating surface-tension phenomena that produce spheres, pendant and rising drops, jets and columns, and automatic drop formation. Experiments and explanations cover interactions between immiscible liquids, combined vapor–liquid droplets, condensation, overheating and floating drops on heated plates, and dynamics of films converting into globules. Later material explores spreading and motion driven by solubility, ring and network patterns from rupturing films, attraction and merging of floating globules, and simple apparatus and techniques for reproducing the demonstrations.

LIST OF ILLUSTRATIONS

FIG.                                                         PAGE
1.    Silver sheet floating on water .     .     .     .     .     4
2.    Column and index of minimum thermometer .     .     .     6
3.    Thread of golden syrup rising and forming a drop .     .     8
4.    Drops of different sizes resting on flat plate .     .     10
5.    Formation of a sphere of orthotoluidine .     .     .     12
6.    Detached sphere floating under water .     .     .     .     13
7.    The centrifugoscope .     .     .     .     .     .     .     14
8.    Aniline drops falling through cold water and ascending
              through hot water .     .     .     .     .     .     17
9.    Aniline skins enveloping water .     .     .     .     .     20
10, 11, 12. The “diving” drop. Three stages .     .     .     .     23
13.    Apparatus for forming ascending or descending drops of liquids 27
14-20.    Formation of a drop of orthotoluidine, showing the
              droplet. Seven stages .     .     .     .     . 29-31
21, 22.   Automatically formed aniline drops, showing the
              formation of droplets from the neck .     .     . 34, 35
23-25.    Jets of orthotoluidine discharged under water .     .     39
26.    Water stretched between a tube and a plate .     .     .     40
27-30.    A liquid column stretched upwards by addition
              of water until broken. Four stages .     .     .     43
31.    A column of aceto-acetic ether in water .     .     .     44
[pg viii]
32.    Apparatus for communicating drops .     .     .     .     45
33.    Combined vapour and liquid drops .     .     .     .     49
34.    Spheroid of water on a hot plate .     .     .     .     58
35.    Forces acting on a floating globule .     .     .     .     61
36.    Aniline globules on a water surface .     .     .     .     64
37.    Orthotoluidine globules on a water surface .     .     .     66
38.    Resolution of a floating skin into globules .     .     .     68
39.    Network formed from a film of tar-oil .     .     .     .     70
40.    Quinoline rings and perforated plates .     .     .     .     71
41.    The expanding globule .     .     .     .     .     .     72
42.    The “devouring” globule. Five stages .     .     .     74
43.    Photograph of one globule absorbing another .     .     .     75

[pg ix]