Slide Chart, Your Danger Zone

Description
This small slide chart allows motorists to find their “danger zone,” that is to say the distance an automobile will move forward in feet after a motorist wishes to stop, as this varies with the speed of the car (ranging from 20 to 80 miles per hour) and the reaction time of the driver (ranging from 1/4 second to 1 second). The total stopping distange or “danger zone” ranges from 29 feet to 469 feet.
The envelope and slide are of white paper, printed in red and black. A mark on the front, the back and one side of the slide reads: COPYRIGHT, 1935, AETNA CASUALTY & SURETY CO.
Location
Currently not on view
Object Name
mathematical table
date made
ca 1935
maker
Aetna Casualty and Surety Company
Physical Description
paper (overall material)
Measurements
overall: .5 cm x 15 cm x 7.8 cm; 3/16 in x 5 29/32 in x 3 1/16 in
place made
United States: Connecticut, Hartford
ID Number
1979.3074.06
nonaccession number
1979.3074
catalog number
1979.3074.06
subject
Science & Mathematics
Mathematical Charts and Tables
Mathematics
Safety
Automobiles
See more items in
Medicine and Science: Mathematics
Mathematical Charts and Tables
Data Source
National Museum of American History, Kenneth E. Behring Center
Credit Line
Gift of Oscar W. Richards
Additional Media

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