Chaplin says it was important they took as long as they needed and made sure they were all in "the right space mentally".

BBC: Keane overcome rows and mistakes to release Strangeland

Kennedy's summons to space only needed to jolt a few thousand scientists into doing something they did not know they could do.

ECONOMIST: Lexington

The weight of the lunar module, on top of the command and service module, was the main reason why the Saturn V rockets that shot Apollo astronauts into space needed to be the tallest, heaviest and most powerful ever flown, a record they still hold.

ECONOMIST: Space lifts

But Belling and cofounder Pat Turpin, an ex-investment banker who managed private-label brands for Costco, needed to get the snack out there fast before they could persuade chains like Safeway and Whole Foods to clear shelf space.

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