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My only input on this comes from a close association who was a high-ranked officer in a branch of the military. I once asked this individual if we were being watched by satellites, kind of a "Big Brother" query. The individual responded (and this was MANY years ago) that they had satellites that could read the date off of a quarter lying on the ground. [] []
For satellites, general surveilance of ground installations, yes. Monitoring of individuals and following them around, no - this is Hollywood science fiction at the moment. You could track a vehicle, but following an individual is beyond the technology unless he is on his own walking through the desert (or something similar).
Quote from: Evie on 17/11/2008 15:04:22QuoteMy only input on this comes from a close association who was a high-ranked officer in a branch of the military. I once asked this individual if we were being watched by satellites, kind of a "Big Brother" query. The individual responded (and this was MANY years ago) that they had satellites that could read the date off of a quarter lying on the ground. [] []That sounds a bit fanciful. There are diffraction limits which can't be exceeded by too much. The HST might do that because its big enough.The Rayleigh criterion gives the relationship between aperture and resolution, (it does not include atmospheric effects).For a satellite to read the date on a coin on Earth it would have to have an aperture of about 50cm, the Hubble space telescope has an aperture of 2.4 meters. In practice atmospheric effects would be the limiting factor determining what on Earth can be seen from space.
QuoteMy only input on this comes from a close association who was a high-ranked officer in a branch of the military. I once asked this individual if we were being watched by satellites, kind of a "Big Brother" query. The individual responded (and this was MANY years ago) that they had satellites that could read the date off of a quarter lying on the ground. [] []That sounds a bit fanciful. There are diffraction limits which can't be exceeded by too much. The HST might do that because its big enough.
Anyone know of any satellite spying going on in the Emirates(U.A.E.) A lot of buzz around here that some people are using satellites to spy on people(listening in on conversations and following people around)
and "make their life hard" as they put it.
Adding to that things like "I'll buy your family.." etc.
Any thoughts on even if such a thing is possible with use of the electromagnetic spectrum and satellites?
If this post is out of context, where I've posted it, please, do delete it.