Apple iOS has recently changed the API required to access hardware, such as the accelerometer that is used in these simulations. We are recoding the EJS models that use the old API.

Note that these Mobile Device Models continue to work on Android devices

The JavaScript models presented here use the accelerometer on your mobile device to read the direction of the gravitation field g. You may need to lock the orientation of your screen to maintain a fixed view as you tilt, wiggle, rotate, and shake your device. For use on computers without an accelerometer or for classroom use, the no sensor mode simulates device motion.