A traffic light light is a system of lights placed at busy intersections to control traffic crossing. These systems help reduce congestion by allowing crossings only on the green, not red or amber. The light colors (red, amber, …
I stand on one leg and have 3 eyes. What am I? Read More »
The Wright Brothers The Wright Brothers, Orville, and Wilbur were two American aviators, inventors, and aviation pioneers of the United States. They are generally credited with inventing and building the world’s first practical airplane and making the first human flight on December 17, 1903. They made the …
Who flew the first airplane? Read More »
To protect passengers in case of an accident Airbags on a car work as shock absorbers; they reduce the damage caused to passengers when in an accident. The airbag consists of a rigid plastic bag connected to an inflating mechanism that includes a compressed gas tank. The …
Why do Cars have Airbags? Read More »
