Object Details
maker
Baker, Richard P.
Description
This ruled surface has an unpainted brown wooden frame. The top and bottom are roughly in the shape of an H with curved sides. The two sides are like one another. The model is strung to represent one hyperboloid of one sheet in red threads and another in yellow threads. The two hyperboloids do not intersect nor are they twisted. Their axes are perpendicular (but not in the same plane). The model has a hole in the bottom piece to hold the ends of a vertical line, but there is no vertical line. A typed paper label on the top reads: Scroll of higher order.
Compare MA.211257.124 and MA.304722.33 – both are Baker models. A Brill model with number 1985.0112.132 and a Baker model with number MA.211257.128 are similar but the ruled surfaces have been twisted and there is a vertical line at the center of both.
Location
Currently not on view
Credit Line
Gift of Frances E. Baker
ID Number
MA.211257.124
accession number
211257
catalog number
211257.124
Object Name
geometric model
Physical Description
thread (overall material)
wood (overall material)
metal (overall material)
red (overall color)
darkwood stain (overall color)
yellow (overall color)
screwed and threaded. (overall production method/technique)
Measurements
average spatial: 35.5 cm x 35.3 cm x 36.2 cm; 13 31/32 in x 13 29/32 in x 14 1/4 in
place made
United States: Iowa, Iowa City
See more items in
Medicine and Science: Mathematics
Science & Mathematics
Data Source
National Museum of American History
Subject
Mathematics
Link to Original Record
Record ID
nmah_1088363