what would the auto rotation feature on a phone tablet etc. do in space?

Question

as you probably know an ipad or other tablets as such have a auto rotation so basically if you turn the screen from portrait to landscape it will change the screen to the angle your working with. I presume it uses the accelerometer (not too sure on spelling) but does it require the need of gravity to work out which ways down?
and no i'am not planning to goto space in the near future so i cannot really test it!

Answer 1

Yup, iDevices use an accelerometer. An accelerometer will measure acceleration so, in simple terms, it just detects whether or not the device moves. The required force to trigger the accelerometer can be supplied by anything, it doesn't need gravity to work.



Basically, an accelerometer wouldn't do anything in space unless you moved it - pretty much the same as if you left the device on a flat surface anywhere. :)

Answer 2

The devices use an acceletometer, which measures acceleration, and a properly designed accelerometer will work in space.



i am avaiable for testing right now... :-)



More interestingly, some devices claim to go to silent-night mode if placed face-down, etc. - these might struggle, since there "down" is not a locally-relevant direction. It depends whether the device is really detecting down, or just the absence of light.



also, bear in mind that although the ISS is in free fall, gravity is not zero (otherwise it would not orbit).

Answer 3

Not much.



However, you can get an accelerometer to react by accelerating it. One way to do that while on a space station would be to put it on a string and spin it around.

Answer 4

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Answer 5

don't know, i'm too poor to own a phone. thanks Obama!