The barometer is one of the basic instruments of meteorology. It is used to measure air pressure. The word comes from a combination of two Greek words: "baro," meaning weight, and "meter," meaning ...
Lum Woodruff, a resident of Ann Arbor, Michigan, who reported weather observations to the Smithsonian Institution, patented a portable barometer that proved to be extremely popular. Its key feature ...
The silvered plate at the top of this simple wood frame reads “B. PIKE & SONS / 518 BROADWAY / NEW YORK.” The barometer scale extends from 27 to 31 inches of mercury; it is graduated by tenths and ...
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