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Museums sometimes ask multimedia producers for the ultimate exhibit: it actively involves groups of people in educational interactions, it enhances the visitors' understanding of the museum as a whole, it gives each visitor the impression that the exhibit is learning about and responding specifically to him or her, it requires no staff to run, and it is unlike anything ever seen before on this ...

the box of seed was four times the cost of conventional seed. When several rainless days had passed after planting, she went into the field with a hired worker to hand-water each seed to ensure germination-an extraordinary level of attention to a cotton field. Such fields were later used to calculate the " yield advantage " of Bt seed.

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