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Old 2008-07-31, 06:20   #23
Uncwilly
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Quote:
Originally Posted by Xyzzy View Post
Google just needs to reverse engineer and build a couple SR-71 Blackbirds.

We cannot find the article but we remember somebody used a SR-71 camera to take a "normal" picture of the Grand Canyon, or something like that. The results were stunning.
The U-2 would be a better fit. Cheaper to fly, and no need to stealth around. It would fly above commercial flights. The film weighed so much that it had 2 rolls that worked together, one started full on the one side and the other started full on the other side.

Beside, the welding on the SR-71 was real tricky, they had problems during some seasons.
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Old 2008-07-31, 09:52   #24
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more than once, when I was going over the outskirts of a more urban-ish area either in Google Earth or Maps (at a zoom level high enough to make out the colors and the general shape of the cars), following a given path along the streets, when the area would get more rural, I would quite often suddenly see the image get a lot, lot less clear--it would suddenly look all moosh-y and muddled (staying at the same zoom level as before).
A difference in resolutions could have other causes than just the aerial/satellite. There's no law requiring all aerial (or satellite) photography to be done at the same scale with the same film and camera, or at the same cost. Google could probably buy lower-resolution aerial photos cheaper than high-resolution shots. It'd be only sensible (to urban dwellers, anyway) to buy the high-res shots only for densely-built-up areas, and use lower-res shots for the rest.
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Old 2008-08-01, 14:13   #25
mdettweiler
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Originally Posted by cheesehead View Post
A difference in resolutions could have other causes than just the aerial/satellite. There's no law requiring all aerial (or satellite) photography to be done at the same scale with the same film and camera, or at the same cost. Google could probably buy lower-resolution aerial photos cheaper than high-resolution shots. It'd be only sensible (to urban dwellers, anyway) to buy the high-res shots only for densely-built-up areas, and use lower-res shots for the rest.
Oh, I see--hadn't thought of that either.
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