Eli Goldstein, a fresh-faced cofounder of SkyCool Systems, pulled open the garage door on the side of the Stanford spinout's cramped workspace in Burlingame, California, and rolled a set of square silver panels into the parking lot.
They were tilted toward the sun, covered in what looked like perfectly creaseless aluminum foil and attached to a metal frame holding an array of pipes, tubes, and thermometers.
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