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Leokris [45]
3 years ago
8

Paper film was too flimsy so they invented this to use in their cameras.

History
1 answer:
cricket20 [7]3 years ago
6 0
The first "cameras" were used not to create images but to study optics. ... He invented the camera obscura, the precursor to the pinhole camera, to demonstrate how light can be used to project an image onto a flat surface.
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How did the mexican american war serve to heighten tensions over slavery?
Novay_Z [31]
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3 years ago
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scoundrel [369]

The Three-Fifths Compromise determined that 3 out of 5 slaves would be counted as people, giving the South an advantage in Congress

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Why did american's have more leisure time in the 1950s?
Nat2105 [25]
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3 years ago
Which president won election partly by promising to bring an end to the Korean War?
DedPeter [7]

Answer:

President Eisenhower  

Explanation:

President Eisenhower -

Eisenhower was the 34th president of the United States , serving his presidency from  1953 to 1961 .  

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He was responsible for the end of the Korean war.

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3 years ago
Countries which export more than they import (i.e., which have a surplus in their balance of trade) still will have a $0 balance
chubhunter [2.5K]
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