The young researchers gathered on the rooftop of Caltech’s engineering laboratory in Pasadena on a balmy May evening did not set out to make history that night.
But after a long day setting up equipment to test a solar power satellite, the professor leading the project told them to grab something to eat and come back.
“It was close to 10pm and we said, ‘Let’s have a go. Let’s do a dry run,’” says Ali Hajimiri, professor of electrical engineering at the California Institute of Technology. “At first we thought we weren’t detecting a signal. Then it started coming in and getting stronger.”
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