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奉仕の発明
829,431 views |
ディーン・ケーメン |
TED2002
• February 2002
Read transcript
発明家ディーン・ケーメンは、セグウェイに関する持論を述べ、今取り組んでいる次の大きなアイディアの一部を紹介します。 (発展途上国で利用可能なエネルギー源と水の浄化装置)
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