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Though 3D printing technology has been available for over two decades, it has not gone mainstream as hoped because of the high cost and slow print speeds. But that may change so...About 7 years ago340916600 added a book review.
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Move over, Atlantis! A real lost continent has been discovered by a team of geologists led by Lewis D. Ashwal from the University of the Witwatersrand in South Africa. The scien...About 7 years ago348861493 wants to read this book.
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