To: Elsie
download a speedometer app to your phone and you can see how accurate your car’s instrument is.
aaah, but would it also inform 'THEM' what speed I'm doing ....
;)
Here in the UK we have distance markers on the motorways which are usually accurate, even over long distances, so it's fairly easy to check.
74 posted on
02/15/2019 1:08:52 AM PST by
Mr Radical
(In times of universal deceit, telling the truth is a revolutionary act)
To: Mr Radical
We had a few places on highways with accurate measured miles before the Interstates went in.
And now we have fairly accurate mileage posts along all interstates.
However, using these require at least a minute to use (for speed check), and is susceptible to human reaction time error.
GPS; however; is almost instant.
76 posted on
02/15/2019 4:30:02 AM PST by
Elsie
(Heck is where people, who don't believe in Gosh, think they are not going...)
To: Mr Radical
aaah, but would it also inform 'THEM' what speed I'm doing .Quite possible, but since your position could be known by 'them' anyway, your speed could be found by...
( (where he was)-(where he is) ) / ( (WHEN he was)-(WHEN he is) )
And iff'n ya wanna REALLY go nuts on the math involved ---> https://en.wikipedia.org/wiki/GPS_signals
77 posted on
02/15/2019 4:47:10 AM PST by
Elsie
(Heck is where people, who don't believe in Gosh, think they are not going...)
To: Mr Radical
OnStar: How may we help you?
78 posted on
02/15/2019 4:49:26 AM PST by
Elsie
(Heck is where people, who don't believe in Gosh, think they are not going...)
To: Mr Radical
Of course this flowchart may have some links in it that we poor schlubs have NO idea they exist!
(Jumping right into #8 looks like a fun place for our Controllers to enter.)
79 posted on
02/15/2019 5:10:47 AM PST by
Elsie
(Heck is where people, who don't believe in Gosh, think they are not going...)
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