The instructions state the following:
> Imagine you begin a journey in Seattle WA, facing exactly due east. Then start traveling forward, in a straight line along the Earth’s surface.
Where does it say to "travel exactly due East"?
> Imagine you begin a journey in Seattle WA, facing exactly due east. Then start traveling forward, in a straight line along the Earth’s surface.
Where does it say to "travel exactly due East"?
And if it's supposed to mean "a straight line when projected onto a map", I'd like to know: Which map projection? :)
It's exactly the same if you start in Seattle. If you drive for 10 miles without turning, when you stop you will no longer be at Seattle's latitude - you'll have gone south.
And even that would require an unusually well aligned steering on a snowmobile :)