It would be a near impossible job to perform electrolysis on the entire iron frame of the Cutty Sark.

BBC: NEWS | Science/Nature | Landmark ship 'faces collapse'

Other officials told the panel they were working to solve technical challenges with the new system, including a slim possibility that powerful energy waves created during a launch could injure astronauts or make it impossible for them to perform basic tasks.

BBC: Nasa defends its spaceflight plan

Her campaign had to perform what may have been an impossible balancing act.

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Morgan, Intel, Microsoft, Boeing and others harness their far-flung PCs to perform on the cheap intense computation that was previously impossible or too costly.

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If you perform your normal job as you would under these conditions for an entire day, it would be impossible to feel down and disengaged.

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Monsanto has good reason to charge more for such stacking: If stacked seeds perform poorly, Monsanto may be wrongly blamed and its own brand may be harmed since it is impossible to know the source of the malfunction once the traits are combined and the seeds are planted.

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