Affiliations: Future Technology Research Institute, 3-56-2
Higashi-Oizumi, Nerima-ku, Tokyo 178-0063, Japan. E-mail:
y-naka@mug.biglobe.ne.jp | School of High-Technology for Human Welfare, Tokai
University, 317 Nishino, Numazu-shi, Shizuoka 410-0395, Japan | School of Engineering, Tokai University, 1117
Kitakaname, Hiratsuka-shi, Kanagawa, 259-1292, Japan
Abstract: It is said that the Jomon period began about12,000 years ago and
continued till about 2,500 years ago. The potteries of that age are known as
Jomon pottery. Among them, a pottery discovered from the Umataka ruin in
Niigata Prefecture in 1931 has an excellent shape. It is said that this pottery
was made about 4,500 years ago. Jomon potteries of similar artistic styles have
been discovered in various parts in Japan. These potteries have very nice
shapes, but the pottery discovered from the Umataka ruin excels other potteries
in its excellent proportion. From the shape of lip, it was named "Kaen pottery"
meaning "Flame pottery". However, from the patterns
of its lip and side wall, it is more appropriate to consider that they are
related to water flow. In this report, this hypothesis is made clear by a
visualization method using the pollen of cedar and pine trees, and computer
simulation.