Pamphlet, Solution of Right Angled Triangles

Description
This small pamphlet consist of fifteen rectangular sheets of paper cut from a blueprint and stapled together on the left side. It has drawings and formula for the solution of right angled triangles, as well as tabulated values of openings required for plugs of differing sizes and different angles of opening. The pamphlet was owned by machinist and museum specialist George A. Norton. It may date from the time he worked as a machinist in the Washington Naval Gun Factory.
Location
Currently not on view
date made
ca 1960
ca 1955
Physical Description
paper (overall material)
Measurements
overall: .2 cm x 16.5 cm x 10.1 cm; 3/32 in x 6 1/2 in x 3 31/32 in
ID Number
1986.3078.04
nonaccession number
1986.3078
catalog number
1986.3078.04
Credit Line
Gift of George A. Norton
subject
Mathematics
See more items in
Medicine and Science: Mathematics
Science & Mathematics
Trigonometry
Data Source
National Museum of American History, Kenneth E. Behring Center

Comments

Add a comment about this object