Archives for July 6, 2016

Bill Nye Atmospheric Pressure

SUPERB ANTIQUE ANEROID BY KEUFFEL & ESSER (circa 1890 1900)

A superb English made late Victorian piece of surveying equipment. Made in England by the famous Keuffel & Esser Co. A laquered brass case with signs of use. Aneroid is not operational (arrow not moving, service required). Diameter: 68 mm(without ring and crown). PLEASE, SEE PHOTO BELOW. Otherwise, an Unpaid Item Dispute will [...]

Pressure Gauge How Barometers Work