What do we measure

1
Zoom In Inquiry
It costs a dime to look through this Bausch and
Lomb high power telescope Library of Congress
Prints Photographs Division
2
What do we measure?
3
(No Transcript)
4
(No Transcript)
5
Unknown. (c1912). Baby being weighed by nurse on
scale. Library of Congress Prints Photographs.
We measure weight.
How has measuring weight changed?
6
(No Transcript)
7
(No Transcript)
8
Ehrgott, Forbriger Co. (c1865). Calendar for
1866 - advertisement for Phoenix Insurance
Company, Hartford, Conn., illustrated with
horse-drawn fire engines, building on fire and
steamboat on fire. Library of Congress Prints
Photographs.
How has measuring days, months, and years changed?
We measure days, months, and years.
9
(No Transcript)
10
(No Transcript)
11
Johnston, F. B. (1899). Students of 8th Division
school using rulers, yardsticks, and measuring
tape in school yard, Washington, D.C.. Library
of Congress Prints Photographs, Frances
Benjamin Johnston Collection .
We measure how long things are.
How has measuring length changed?
12
(No Transcript)
13
(No Transcript)
14
Rothstein, A. (1937). Clock and sign in tavern.
Smuggler's Notch, Vermont. Library of
Congress Prints Photographs, FSA/OWI - Black
and White Negatives.
We measure time.
How has measuring time changed?
15
(No Transcript)
16
(No Transcript)
17
Horydczak, T. (ca.1920-ca.1950). Electric
Institute of Washington. Cooking and planning
I. Library of Congress Prints
Photographs, Horydczak Collection .
We measure temperature.
How has measuring temperature changed?
18
Measuring is all around us. Can you give an
example of where you use measurement?
19
(No Transcript)