Preview
Date
ca. 1961
Description
Used with “Geo-Proof Set (Large Tetrahedron)” (LM.0269) to illustrate the volume ratio of octahedral and tetrahedra with the same edge lengths. Therodyne Corporation marketing material states:
“Assemble a large tetrahedron by surrounding the octahedron with four tetrahedra. Let the volume of one of the tetrahedra be represented by VT and that of the octahedron by VO. Since the volume of the tetrahedron is proportional to the cube of its edge length, the volume of the large tetrahedron is eight times that of the small tetrahedron, or 8 VT = 4 VT + VO And, therefor, VO = 4 VT"
Object Number
TM.0215
Box Number
07
Material
plastic
Dimensions
7 pieces
Keywords
Arthur Loeb Design Science Teaching Collection, geometric models, molecular models