3 ms·

That would only be useful if everyone were outside, and you wanted a split second of many different people's conversations. Satellites move rather quickly rela

by zerb 8y ago

That would only be useful if everyone were outside, and you wanted a split second of many different people's conversations. Satellites move rather quickly relative to the Earth's surface.

devoply 8y ago
Some of them do, there are geosynchronous spy satellites. https://www.popsci.com/gaofen-4-worlds-most-powerful-geo-spy-satellite-continues-chinas-great-leap-forward-into-space#page-3 https://www.popsci.com/gaofen-4-worlds-most-powerful-geo-spy... "It may also have a lower resolution video streaming capacity."
- lifeisstillgood 8y ago
  Ok I was coming to say "spy satellites at 40,000 km up - I doubt they can see anything. And if the linked article is correct the Chinese satellites up there have a resolution of 50m - good luck finding a crisp packet. But the new generation "might" have a resolution of 1m. which is insane. Then again, good luck knowing which square meter of the 1/3 of the earths surface you can see, has the crisp packet in. I still think there will be a place for good old bribery corruption and sex spy techniques for a while yet.
  - angry_octet 8y ago
    Recent Chinese optical satellites are thought to have 10cm resolution. All these are low earth orbit. Depends on cloud cover, atmospheric turbulence and look angle. Still impractical to get sound vibrations from that. But a drone with a laser would work for windows. Think listening in on a conversation in a car.
    - lifeisstillgood 8y ago
      It was the (seemingly seriously ) proposed 1m resolution from geostationary orbit that had me. Still all this tech is useless without knowing where to point it when. Which usually comes down to human led intel and intelligence led tasking. I think ... when AI starts deciding which conversation to follow or record then ... we'll I for one welcome our new robot overlords
  - zerb 8y ago
    I guess I stand corrected. But the practicality, as others note, still seems limited.

by zerb 8y ago

That would only be useful if everyone were outside, and you wanted a split second of many different people's conversations. Satellites move rather quickly relative to the Earth's surface.

devoply 8y ago

Some of them do, there are geosynchronous spy satellites. https://www.popsci.com/gaofen-4-worlds-most-powerful-geo-spy-satellite-continues-chinas-great-leap-forward-into-space#page-3 https://www.popsci.com/gaofen-4-worlds-most-powerful-geo-spy... "It may also have a lower resolution video streaming capacity."

lifeisstillgood 8y ago
Ok I was coming to say "spy satellites at 40,000 km up - I doubt they can see anything. And if the linked article is correct the Chinese satellites up there have a resolution of 50m - good luck finding a crisp packet. But the new generation "might" have a resolution of 1m. which is insane. Then again, good luck knowing which square meter of the 1/3 of the earths surface you can see, has the crisp packet in. I still think there will be a place for good old bribery corruption and sex spy techniques for a while yet.
- angry_octet 8y ago
  Recent Chinese optical satellites are thought to have 10cm resolution. All these are low earth orbit. Depends on cloud cover, atmospheric turbulence and look angle. Still impractical to get sound vibrations from that. But a drone with a laser would work for windows. Think listening in on a conversation in a car.
  - lifeisstillgood 8y ago
    It was the (seemingly seriously ) proposed 1m resolution from geostationary orbit that had me. Still all this tech is useless without knowing where to point it when. Which usually comes down to human led intel and intelligence led tasking. I think ... when AI starts deciding which conversation to follow or record then ... we'll I for one welcome our new robot overlords
- zerb 8y ago
  I guess I stand corrected. But the practicality, as others note, still seems limited.