|
|
iPhone 3G responds to motion using a built-in
accelerometer. When you rotate iPhone from portrait to landscape, the
accelerometer detects the movement and changes the display accordingly.
So you immediately see the entire width of a web page, view a photo in
its proper aspect ratio, or control a game using only your movements.
How it works
The accelerometer inside iPhone uses three elements: a silicon mass, a
set of silicon springs, and an electrical current. The silicon springs
measure the position of the silicon mass using the electrical current.
Rotating iPhone causes a fluctuation in the electrical current passing
through the silicon springs. The accelerometer registers these
fluctuations and tells iPhone to adjust the display accordingly. |
|
