It wobbles because of its underlying molecular structure and the way this is built up. Jellies are usually made from gelatine, extracted from animal bones (although special quick-setting types can also be made from seaweed extracts). When gelatine molecules are warmed in water they are the shape of long wriggling worms, but when the solution is cooled some of these individual molecules become intertwined with another to form bits of triple helix, and the net result is to form a still bigger molecule, which also becomes branched like a tree. Eventually, as this process continues, the result is that some of these new 'super molecules' are so big that they span from one side of the jelly to the other and form a three-dimensional 'net' stretched across the material. This is elastic, because if one side of the sample is pushed or knocked, the energy in the movement can be carried right across the jelly via these super molecules to the other side, causing it to wobble. If the jelly is then reheated the helical strands become unwound and the jelly melts. Actually the mechanical behaviour of jellies is not so different from that of a car tyre, which is also made up of gigantic 'cross-linked' rubber molecules, but luckily the links for these are more permanent, otherwise driving in hot weather would be hazardous.
Dylan loves Jelly, so I knew I wanted to display jelly with him as he shows how much he loves Jelly. I wanted to photograph how the movement of Jelly and how it wobbles as this is what the question is all about.
I really like Jelly 1 as it shows the most movement whilst Dylan is still.
However I think these photographs do not concentrate on the Jelly, if I was to do this shoot again, I would pick a bigger jelly to photograph, to give it a playful and funny approach. The colours as well are too dull.
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