Asking family, friends and colleagues to share their knowledge comes far more naturally than searching through reams of often irrelevant information.

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The firm is now searching for someone with a specialist knowledge of growing giant vegetables.

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Ever since Socrates came up with the idea of teaching students with questions instead of answers, educators have been searching for the next big innovation in imparting knowledge to the younger generation.

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This involves searching for close, though not exact, matches in the DNA database, in the knowledge that such hits could represent family members of a suspect.

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