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Objectnummer
G-8
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Meteorlogical
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Objectnaam
Barometer
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Titel
Barometer: Aneroid
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Beschrijving
Silvered scale divided for pressure, 21-31 inches every 100th, and altitude, 0-10,000 feet every 50 feet. Blued needle. Needle adjustment screw on back. Brass needle marker adjusted by a central knurled screw. Bevelled glass cover. Bimetallic compensation for temperature. Cylindrical gilt copper case with suspension ring.
The provision of a scale for height as well as barometric pressure was first suggested to Negretti and Zambra by the Astronomer Royal, George Airy (1801-1892). This barometer belonged to the notable amateur astronomer and specialist in visual double stars, S. W. Burnham.
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Materiaal
"Negretti & Zambra, LONDON, 3407 COMPENSATED"
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Materiaal
copper, gilt copper, glass, paint
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Onderwerp
England
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Formaat
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Imperial(in) |
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Metric(cm) |
| Height |
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15.2 |
| Width |
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12.1 |
| Depth |
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5.6 |
| Diameter |
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| Circumference |
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Imperial(in) |
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Metric(cm) |
| Height |
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| Width |
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| Depth |
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| Diameter |
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