I have decided to compile information for the powder which included in a page of a stone mill.
Because it is the considerably important work, it takes it to stability for a while.

Information for Powder:( Powder Technology)

Date A Title Note
04/9/03 What is a greatest invention on the human history? If the invention was not,
04/8/16 A powder association game This is a historical fact
04/8/13 A tales of ant-lion My terrible memories
04/8/02 Powder in Japanese traditional culture

Worker of gold Lacquer in Japan(gold powder)

04/7/24 Many powders in our life We can find the history of mankind in our life
04/7/10 The soil of the earth is a sort of powder This is a huge apartment of the microbes

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