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Lost Technology

Lost Technology. 2014131021 Takamitsu Sakai. What is Lost Technology ？. It is the technology that has been lost by some kind of reasons in the present age. out-of-place-artifacts. Crystal skeleton 　　　→. There is the opinion it is the imitation. Factor of the outbreak.

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Lost Technology

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  1. Lost Technology 2014131021 Takamitsu Sakai

  2. What is Lost Technology？ • It is the technology that has been lost by some kind of reasons in the present age • out-of-place-artifacts Crystal skeleton　　　→ There is the opinion it is the imitation.

  3. Factor of the outbreak • A successor disappears, and a technique is lost. • The base of the technique disappear by an environmental change. • By development of different technology, it decline.

  4. Old Japanese sword • "An old Japanese sword" means swords from the Heian era to the Sengoku era.

  5. Mystery of the old Japanese sword • How do it was made？

  6. History of the Japanese sword

  7. Damascus steel ←　Indian dagger using the Damasucus steel

  8. Mystery of the Damascus steel • How do it was made？ • Why is it hard to be rusted？ “Pillar of Delhi” in India This is said to be made of Damascus steel

  9. The other Lost Technology ←　　Greek fire Roman aqueduct　　　→

  10. Reference materials • http://ohmura-study.net/003.html • http://www.nittech.co.jp/M99/M9906.html • http://ja.wikipedia.org/wiki/%E3%82%AE%E3%83%AA%E3%82%B7%E3%82%A2%E7%81%AB%E8%96%AC

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