circular disk weight
Date1870-1920
Inventory Number1998-1-0208
ClassificationCentripetal Force Demonstration
Subject
Maker
American
?
Place of Origin
Dimensions4.4 × 4.4 × 0.3 cm (1 3/4 × 1 3/4 × 1/8 in.)
Material
DescriptionCircular disk weight in brass that was put on the carriage of a centripetal force demonstration apparatus (1996-1-0418; 1996-1-0419). It is marked "1 oz".
Signedunsigned
American
Date: 1870-1920
Accessories: circular disk weight (1998-1-0208)
Object number: 1996-1-0419
American
Date: 1870-1920
Accessories: circular disk weight (1998-1-0208)
Object number: 1996-1-0418
Pyrex
Date: 1850-1900
Accessories: detachable glass bulb hangs from center
Object number: 1998-1-0143
Acoustic Research, Inc.
Date: after 1954
Accessories: instrument is in six (6) parts;
instructions on 1 sheet of paper (original with instrument, two copies in file)
Object number: 2006-1-0056
English
Date: circa 1820
Accessories: 5 brass weights, brass holder, piece of lead
Object number: DW0227
Carl Zeiss Jena
Date: 1914
Object number: 1996-1-0652a
John Cuthbertson
Date: 1770-1815
Accessories: brown storage box, descriptive tag, thin strip of paper in box with the inscription "lucernal microscope" in David P. Wheatland's handwriting (which refers to figs. 47-48 and 51 in this series), page from the book "Old Science and Medicine" with a photographic copy of the first print from this series, entitled "The Large Electric Machine at Haarlem."
Object number: 1998-1-1087
American
Date: mid 19th-early 20th Century
Accessories: brass rod/holder
Object number: 3812
