It uses satellite images. And did you know, that long before Google Earth, Terra existed? While not as user-friendly as Google Earth, it offered many of the same features.
That's a great explanation. The satellites that can orbit all over, wouldn't they eventually collide?
please post the exact url to that position would love to see a sold out car parked..its like back to the future part 6
The odds are extremely small based on a few factors. The ones that can orbit "all over" still follow a set pattern, one way of looking at it is they orbit in the same place but the earth rotates beneath it thus the satellite looks at a different portion on each orbit. The big factor is that there is not only and X and Y location but a Z, different satellites orbit at different altitudes, some in "low earth orbit" some in mid, some in high. The low ones are anywhere from 100 to 2000 km up, and at the various altitudes you have in that range, you can put a lot of satellites up before they start bouncing into each other. There are also higher altitude ones, the ones that do global positioning, for example, are in the 10,000 to 20,000 km heights. Lot of open space when you consider there is over 20,000 km of area where you could put a bird