Wind Chill Calculator, a Slide Chart
date: label: date made
content: 1976
name: label: maker
content: Holubar Mountaineering Ltd.
label: manufacturer
content: Graphic Calculator Co.
notes: label: Description
content: In the 1970s, after metric units of measure had been adopted in Canada and Great Britain, some people in the United States advocated adoption of the metric system. Holubar Mountaineering Ltd. of Boulder, Colorado, a manufacturer of outdoor clothing and camping supplies, distributed this cardboard slide chart. One side has a wind chill calculator. This had twelve columns of numbers with an actual temperature (given in both degrees Fahrenheit and degrees Celsius), at the head of each column. Figures in the column then gave the equivalent wind chill temperature for wind speeds in miles per hour (with the Fahrenheit scale) and in kilometers per hour (with the Celsius scale). Cold dangerous to health is indicated in shades of blue.
label: Description
content: The reverse side of the chart has columns for converting from metric to English measures of length, mass, volume, and area. A number line has Fahrenheit temperatures on the top and Celsius temperatures on the bottom.
label: Description
content: A mark on the sliding piece reads: GRAPHIC CALCULATOR CO., Barrington, Illinois 60010 Made in U.S.A. 12-76 -2349.
label: Location
content: Currently not on view
place: label: place made
content: United States: Colorado, Boulder
topic: label: Subject
content: Mathematics
setName: label: See more items in
content: Medicine and Science: Mathematics
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content: Mathematical Charts and Tables
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content: Metric System
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content: Science & Mathematics
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content: Measuring & Mapping
creditLine: label: Credit Line
content: Gift of Joan P. Nichols
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: 2001.3103.02
label: nonaccession number
content: 2001.3103
label: catalog number
content: 2001.3103.02
objectType: label: Object Name
content: mathematical table
physicalDescription: label: Physical Description
content: paper (overall material)
label: Measurements
content: closed: 7 cm x 15.3 cm; 2 3/4 in x 6 1/32 in
label: Measurements
content: open: 13.9 cm x 15.3 cm; 5 1/2 in x 6 in