((Just copy-pasting from another person's answer on Yahoo!Answers, I take no credit for this answer )
The instruments that are recording these images are looking for different data than would be shown in a photograph, such as temperature, high or low pressure, different gasses, etc. Many of theses kinds of data would not be obvious in a standard photograph or video.
A common operating picture helps to ensure consistency at all levels, among all who respond to or manage incident response.
A mechanical illustration is a draft, drawing or dimensioned picture that enables measurements to be interpreted. It might improve the information in a science notebook by giving easy reference to the size of parts of an experiment.
picture graph
Show a picture of a football player kicking a ball.
Since we have no idea what picture you are looking at, we don't know.
which satellite........
a satellite is for sending picture from space to earth
The satellite takes a picture and sends it by signals.
No.
With a camera!!
No, the cable will not work when the satellite is out. The satellite is what brings you the picture. If you are concerned about the satellite, I would stay with cable.
If the picture is "snowy" you have the TV on the wrong station.
in daylight hours
There may not be that much of a difference, depending on the TV on which you are viewing the satellite or cable. Based on where you live, reception of either the cable or the satellite might be better, but that's a reception issue, not a picture quality problem.
Incredibly low. Many millions to one. See related link for a picture of a satellite that did make it back to Earth.
HD tv satellite receivers receive the best quality picture for satellite tv. They are a great purchase if you are willing to pitch in a little extra money.
Some inclimate weather can cause satellite receiver interuption. If it is snowing heavily and the snow is building up on your satellite receiver it can cause the picture to be disrupted or cut off completely.