Mapmyrun.com Question (Read 1707 times)

Are all the threads in here making no sense at all today or am I have acid flashbacks again? Is the Chicago marathon shorter or longer than one in New Orleans? Does New Orleans have a marathon? Do they serve gumbo and crawdads? I'm going to try one more thread, and it better make sense. Or I'm going back to sniffing glue.

I'm waiting for the Rapture at this point. What sealed the deal is someone has a whole thread about how you were right. I'm still not sure what it was that you were right about. It certainly wasn't about how to succeed at a Thunder Challenge.

Yeah, that one scared the bejeesus outta me, too. I'm gonna go take a nap. Something is wrong.

Go read the thread about the GTSSM. It's wonderful.

There is also the issue of Einstein's Theory of Special Relativity. All observers record the same speed of light regardless of reference frame, but in order to do so, mass, distance and time can vary relative to the observer's velocity. So if life in New Orleans seem slow and lazy, time dilation must be occurring relative to Chicago (clocks run slower in New Orleans). In order for this to be the case, New Orleans must be moving at a faster velocity though space than Chicago. This is true because it is closer to the equator. Due to a special relativistic effect known as a Lorentz Contraction, length contracts as objects approach the speed of light relative to length at rest. This is given by: So assuming that the poles of the earth are at rest, Chicago at latitude 42°N moves at a linear velocity of 770miles per hour relative to the pole. New Orleans at 30° North moves at 890 miles per hour. Applying the Lorentz transformation, we see the following: North Pole: 1m Chicago: 0.999991m New Orleans: 0.999989m So a meter in New Orleans is shorter than a meter in Chicago. Hopefully, these mapping tools take this into account.

I'm nominating Globule to be the next physics Nobel Prize winner, or at least Man of the Year in some third world country.

It all makes sense now.

No, JK, it does not. And MC, your nomination is misplaced. Globule's elegant discussion takes into account rotational velocity relative to the axis. The OP's question, by contrast, asked about distance from the center of the sphere (or, to use a different referent, the sea level). If involving Einstein's theories when considering this question, it would be better to apply the effect of gravity than the effect of rotational velocity.

This wasn't a response to the OP. I was raising an additional concern. This is the kind of stuff that keeps me awake at night. Undoubtedly, there is some issue with the differences in the curvature of space-time as we get farther from the Earth's center of mass, which would likely affect linear distances. I'll look into it.

Re: Missing features How do I import from elsewhere? My Garmin? Previously saved files of various formats? I think that functionality is still missing, unless I missed it.

The very fabric of the universe is based on assumptions or estimates or maybe it was some meter bar housed in Europe. I know this because goblue and Ennay told me so. I may have it wrong but then again I was assuming things.