Examlex
When you send someone an encrypted message using public key encryption, only a public key is necessary to decrypt it.
American Cities
Urban areas in the United States that serve as centers of population, culture, economy, and political activities.
The Car
A wheeled motor vehicle used for transportation, typically powered by an internal combustion engine or electric motor, essential to modern society for personal mobility and freight transport.
The Railroad
A mode of land transportation that uses a track of rails for trains to travel on, significantly transforming economies and societies worldwide since the 19th century.
Tenements
Multi-family residential buildings, often overcrowded and poorly maintained, historically associated with the working class and immigrant populations in urban areas.
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