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Kurt Ernst November 19, 2012 Comment Now! In it’s most elemental form, a rotary printing press consists of a cylinder that’s coated with ink, rolling across a sheet of paper. Though neither economical ...

Scientific American is part of Springer Nature, which owns or has commercial relations with thousands of scientific publications (many of them can be found at www ...

Scientific American is part of Springer Nature, which owns or has commercial relations with thousands of scientific publications (many of them can be found at www ...