Figure 4 illustrates a satellite remote sensing process as applied to agricultural monitoring processes. The sun (A) emits electromagnetic energy (B) to plants (C). A portion of the electromagnetic energy is transmitted through the leaves. The sensor on the satellite detects the reflected energy (D). The data is then transmitted to the ground station (E). The data is analyzed (F) and displayed on field maps (G).
BBC News - Military fact file: Drones - 3 views
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These strange-looking planes carry a wealth of sensors in their bulbous noses: colour and black-and-white TV cameras, image intensifiers, radar, infra-red imaging for low-light conditions and lasers for targeting. They can also be armed with laser-guided missiles.
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Each multi-million dollar Predator or Reaper system comprises four aircraft, a ground control station and a satellite link.
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Although drones are unmanned, they are not unpiloted - trained crew at base steer the craft, analyse the images which the cameras send back and act on what they see
Ways to Watch BBC iPlayer Abroad - 1 views
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iPlayer service by checking the physical location of the Internet provider you are using to connect to the Net
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How does this work? What are the technical terms. (CT)
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The iPlayer service is able to detect you're IP address or ISP through your network and track down your location. As every area has a different IP, it would be easy to locate. There are IP locaters that allow systems to track physical locations around the world. Unless you use a proxy server, it would be harder to track down your physical location, as it has no direct route back to your computer.
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f you've got access to a PC back in the United Kingdom you can make a virtual private network tunnel back to that PC and connect to the iPlayer web site thru that PC, this can cause it to look like you are in the United Kingdom.
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Firstly should you pick substitute or VPN options,
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What is substitute? What is VPN? Use technical terms. (Conan)
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A VPN is a private network that uses a public network to connect remote sites or users together. A key feature of a VPN is its ability to work over both private networks as well as public networks like the Internet.
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TOR and Foxyproxy are examples of alternatives for VPN. TOR(The Onion Router), is an online anonymity system keeping user's internet activities from being monitored. Foxyproxy is a a firefox plugin that allows you to add proxies, keeping your ip hidden when you use it.
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