A phone with a camera can used to take pictures of the car's speedometer. Not very precise (since car speedometers typically lie by a few mph/kph), but keeps date and time with the image for later reference.
If your car's speedometer is broken, and you see someone you know driving in the next lane, you can use the phone to call them up and ask. -- Kostya 2011/1/17 DanH <danhi...@ieee.org> > I think that by then you will be passing cell towers fast enough that > you can use that reference. Or detect the color shift in a flash > picture. > > On Jan 17, 12:05 am, metal mikey <coref...@gmail.com> wrote: > > Will this still work as the car approaches and quite potentially > > breaches the speed of sound??? > > > > On Jan 15, 4:59 am, DanH <danhi...@ieee.org> wrote: > > > > > It only takes one phone: You have the phone generate a tone and > > > detect the shifted tone off of whatever object reflects it, like > > > radar. ;) > > -- > You received this message because you are subscribed to the Google > Groups "Android Developers" group. > To post to this group, send email to android-developers@googlegroups.com > To unsubscribe from this group, send email to > android-developers+unsubscr...@googlegroups.com<android-developers%2bunsubscr...@googlegroups.com> > For more options, visit this group at > http://groups.google.com/group/android-developers?hl=en > -- You received this message because you are subscribed to the Google Groups "Android Developers" group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
