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The production of bubbles was stopped after several days. The bubbles disappeared. But sediments remained at the bottom, floating matters remained on the surface, and substances remained on the glass wall of the upper part from the surface of the water. There are various substances on the glass wall off water as shown in Fig.36 (a)〜(e).

　　
　(a) bubbles and substances around surface of the water
　　　　[photographing was after 48 hours]

　　 　　
(b)　two kinds of bubbles 　　(c) bubble that gives distortion to other bubbles

　　　 　
(d) distribution of small substances　　(e) bubble that varied in the inside
Fig.36 Substances around surface of the carbonated water that was mixed with powder of iron and that of calcium carbonate


Summary
　The membrane of iron carbide bubble adheres to the silicate such as glass and rock. Also, the substance that was included in the bubble adheres to the glass wall of the upper part from the surface of the water. The color of iron carbide bubble on the glass wall is changed by chemical reaction if it touches with the air for long time. It is conceivable that chemistry evolution for the first creature was advanced by assist of a catalyst of silica in the ecosystem of iron carbide bubbles.



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