Examlex
A diffraction grating has 450 lines per millimeter.What is the highest order m that contains the entire visible spectrum from 400 nm to 700 nm?
African Society
The diverse cultures, societies, economies, and histories of the African continent.
Slavery
A regime where people are held by others, stripped of their autonomy, and forced to undertake work or services.
Borderlands Area
Regions that exist on or near the boundaries between countries, often characterized by a blending or clashing of cultures, economies, and histories.
Colonial America
The period of American history from the early 1600s until the American Revolution, marked by European colonization of parts of what is now the United States.
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