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A comment on Tesla footage of braking before crash ahead [video]. Parent comment

Re:Tesla footage of braking before crash ahead [video] by CodeWriter23 on Wednesday December 28, 2016 @06:19AM (#13269843)
You're right. What's confusing is the speed reading on the dashcam lags by about 2 seconds.
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Re:Tesla footage of braking before crash ahead [video] by cesarb on Wednesday December 28, 2016 @07:04AM (#13269989)
I believe the speed reading on most dashcams is actually from GPS, so it has to wait until the next position measurement to derive the speed from it.
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