electric fan - Students, Britannica Kids

Mechanical devices that move air and other gases are essential to human comfort and safety and to some industrial processes. Broadly speaking they are of three types. Fans…

gasoline engine: cooling system - Students, Britannica Kids

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Encyclopedia Britannica Kids Electronic Reader and 8-Book Library

Young Pretty Girl Children Sitting On Living Room Floor Blowing Electric Fan During Summer Day And Opening Arms Enjoying Cool Wind To Refreshing. Stock Photo, Picture and Royalty Free Image. Image 93707575.

electric fan - Students, Britannica Kids

Carl Perkins - Students, Britannica Kids

fan: ceiling fan with light - Students, Britannica Kids

electricity - Students, Britannica Kids

air conditioning - Students, Britannica Kids

Jimi Hendrix - Students, Britannica Kids

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Encyclopedia Britannica Kids Brain Games Stem Activities Math & Logic Puzzles