Bamboo hand made

The paper is then torn off from the hexagonal bundle, and the fuses, cut to length, are put in place by ong workman while another with a pointed bamboo stick rapidly crimps the paper around them Figure 41. The fuse is made from narrow strips of tissue paper about 2 feet long. While one end of the strip is clamped to the bench and the other is held in the hand, the strip... 

When ionized acrylamide polymer gel undergoes extensive swelling, an extremely fine pattern appears on the surface, and evolves with time[201]. On the other hand, when cylindrical gels of acrylamide shrink, they exhibit bubble pattern and bamboo-like pattern[202]. Under certain conditions, alternate swollen and shrunken portions appear (bubble pattern). In other cases, cross-sectional planes made of the collapsed gel membrane, whose thickness comparable to the wavelength of light, appear in the cylinder (bamboo-like pattern). Gel has also played an important role in the study of the Belousov-Zhabotinsky (BZ) reaction [168, 203], which induces spatiotemporal patterns like the Turing pattern [204, 205] and spiral wave [206]. In the reaction, gel works as supporting... 

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