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How does a television produce images? |
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How does a televison produce images
When you watch TV, your eyes see moving images. But you are really watching still pictures. That's because the images change so quickly(about 30 times every second!) that as far as your eyes are concerned, what you see is actually moving.
Your television collects electric signals from radio waves sent through the air (or from a VCR or DVD player hookup or through cable wires) to the television's antenna. Wherever the elctric signals come from, the television does the same job with them-it converts them to sound and pictures.
To show the pictures, your television uses a system of many dots, called pixels. Imagine each pixel as a box on graph paper (only much, much tinier!). The television signals tell which box to make red, which to make green, and which to make blue in order to create a picture on screen. When all of these tiny pixels appear on the screen, your brain reads them as one complete image.
Tammi
First answer by ID1211207290. Last edit by ID1211207290. Question popularity: 9 [recommend question]
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