[android-developers] Re: Anyone know how to calculate speed WITHOUT GPS?

Play a tone and record it at the same time. The doppler shift should
give you the speed. Works for galaxies.

On Jan 12, 9:52 pm, metal mikey <coref...@gmail.com> wrote:
> You could use the phone's camera to take video of the car's
> speedometer and use image analysis to determine what the speedometer
> indicates the speed as. LOL :D

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