One of the new additions to the iPad 2, and all other iPad iterations after it, is the inclusion of a gyroscope something which has been inherited from the iPhone 4.

Simply, the gyroscope together with the device’s accelerometer improves motion sensing accuracy and allows the iPad to measure in which direction you are moving/rotating it in space (roll, pitch and yaw), how much and how fast.

In technical terms, a gyroscope is a device used to measure or maintain orientation, and it’s the former that’s of interest to us here.
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