From classbrain.com
Explain it to me...
Powerful engines
By ClassBrain Staff
Jul 26, 2006, 10:06am
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How fire engines work - This page tells you how the fire truck, the pump, the hose and the ladder work. Grab a seat and find out why fire engines are the ultimate mobile toolbox.
Source: HowStuffWorks.com
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How airplanes work – To learn about aerodynamic forces, the parts of an airplane, how the direction is controlled, how the airplane sensors work and interesting things about the wind, prepare for liftoff!
Source: HowStuffWorks.com
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