One of America's oldest weather observatories shows people the science behind our climate

PHYSorg
Apr 30, 2026, 2:00 am288 ptsTop
Perched in a tower atop a hill, Matthew Douglas climbs a staircase and emerges from a hatch on the roof, where a heavy glass ball in a metal cradle has burned a thin streak into a strip of paper, recording the previous day's sunlight.

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