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A mill that uses hyrdopower, made by Roman engineer Vitruvius
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a machine that harnesses the power of the wind
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Making ovens work more efficiently
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one was planted in the autumn with winter wheat or rye; the second field was planted with other crops such as peas, lentils, or beans; and the third was left fallow (unplanted)
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Early experiments with cooling for food preservation
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designed to heat much smaller product volumes than standard ovens, but have a shorter preheating time as a result.
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The process of pacing food into jars or cans and heating properly to a specific temperature, made by Nicolas Appert
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grains and things being dehulled into smaller pieces, made by Victor Simon