In 1480, Leonardo Da Vinci designed a lathe powered by foot treadle, which allowed for constant rotation.

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This constant rotation will mean that troops from many countries will have to meet the stringent standards set for the new force.

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When I worked as a consultant in Beijing, it was clear that my co-workers seemed to be on a constant rotation program among the top multinational management consulting firms operating in China.

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In 2009, after three years of almost constant hard-drive rotation, all the atoms fell into place in a nice colourful stable pattern on the monitor.

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The rotation remains constant.

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Asked about his rotation, Woodson said that it is a constant process, and that he is always fine-tuning it to find the right fit.

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And the rotation has to be both continuous and at a constant speed, which for the LZT is 8.5 revolutions per minute.

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