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Apple Patent Could Make iPhone Cases Obsolete
- blaze33 14y agoThis is a reaction wheel[1]. 10 ten years ago during my studies I did a presentation of how they're used by spacecraft for attitude control[2]. Never thought I could have one in my pocket someday! ^^ [1]: http://en.wikipedia.org/wiki/Reaction_wheel [2]: http://en.wikipedia.org/wiki/Attitude_control