Goodfellow's unit has so miniaturized the mass screening of such compounds that machines now replicate the countless experiments in pinhead-size droplets--1, 536 tiny wells on envelope-size plates--a process that formerly took humans untold man-hours.

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"He placed the articles in his legal papers, " contained in a large legal-size envelope, Schoefield said.

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The window cling itself was designed to be the largest size that fit in a standard mailing envelope so as to avoid excess postage charges.

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So far, the company has built a one-eighth-size prototype to test its design, which consists of a carbon-fibre keel, an envelope made from modern composite materials, half-a-dozen engines, a passenger compartment, and a specially lightened crane.

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