Chapter 1, page 5.
1.5 1.1 The water figures - introduction.
1.2 Perception problems with the water figures.
1.3 On the water figures unperceived directly.
1.4 Commonplace water figures.
1.5 Ambient conditions.
1.6 Circumstances affecting the water figures.
1.7 Time relations with the ocean tides.
Ambient conditions.
.1

In order to be seen and recorded in a film, the water figures must be unmodified by adverse conditions.
The wind is not to exceed three knots.
.2 Such as the wind if it exceeds three knots.
The boat traffic.
.3 Usually, the waves produced by a boat disrupt somehow these shapes. However, not always.
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Light.
.4 Also the quantity, the type, the direction of light, and the contrasts it creates as well, play important functions in rendering the water figures more or less visible.
.5 Up to date, no photo has been shot out of the human visible spectrum, most likely the promising frontier in the development of this research.
.6 Above all, with regard to the various water figures which appear at the same time on more than one level, each moving independently from the other ones. A research line just caught sight of.