List of Figures
1 1
14
Numerous wave systems add up to produce the surface
features of the sea
137
15
Forces generating tides
139
16
Comparison of real tidal diagram of the North Sea with
one generated by Dr S. Ishiguro’s electronic model
141
(courtesy of Science Journal)
17
One cycle possible with the Rance Tidal power station
generatmg system
145
18
Areas of the world with sufcient tidal range for power
generation
146
(courtesy of Science journal)
19
World map of surface ocean currents
149
20
Decompression time for a one—hour working dive at
various depths
161
(courtesy of Westinglzouse Underseas Division)
21
Cachalot diving system showing the submersible decompression and diving chamber ‘mated’ to the deck
decompression chamber
165
(after brochure of Westinghouse Underseas Division)
22
From Beebe’s Bathysphere to the bathyscaphe Trieste
]] and manned research submersible Alvin
175
23
Three types of hydrofoil conguration
194
24
Changing eñiciencies of marine propulsion systems
with speed
I97
25
Example of the inuence of ocean ‘structure’ on the
propagation of sonar
206
(after Science and Technology)