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A comment on Boeing 787 Reaches 801 MPH as a Jet Stream Packs Record-Breaking Speeds. Parent comment

Re:Boeing 787 Reaches 801 MPH as a Jet Stream Packs Record-B... by snowwrestler on Tuesday February 19, 2019 @06:29PM (#19204054)
> and an altitude above mean sea level
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Re:Boeing 787 Reaches 801 MPH as a Jet Stream Packs Record-B... by heavenlyblue on Wednesday February 20, 2019 @04:37AM (#19206771)
Nah, you're clearly misunderstanding how GPS works.

GPS allows you to directly measure displacement of any 2 points in 3 dimensions.

You're speaking of the altitude + lat/lon instead, which is in polar coordinates.

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