英语翻译
英语翻译
Television pictures fool your eyes.When you look at a picture,your brain holds the picture for one-tenth of a second.then you must look again.So when the brain has to hold more than ten pictures a second.it puts them together as moving pictures.You can see this yourself by drawing a lot of pictures of the same person,one on each page of a notebook.Then turn the pages of the notebook very quickly.The person will seem to move.
A television picture uses a series of lines across the screen.The lines change the picture many times each second and "analogue television".
Now we have "digital television".It has no lines.Both sound and pictures are in numbers.When the numbers on a digital television change,only the differences between the old picture and the new one change.So the change is very fast and the picture and sound quzlity are very good.
Television pictures fool your eyes.When you look at a picture,your brain holds the picture for one-tenth of a second.then you must look again.So when the brain has to hold more than ten pictures a second.it puts them together as moving pictures.You can see this yourself by drawing a lot of pictures of the same person,one on each page of a notebook.Then turn the pages of the notebook very quickly.The person will seem to move.
A television picture uses a series of lines across the screen.The lines change the picture many times each second and "analogue television".
Now we have "digital television".It has no lines.Both sound and pictures are in numbers.When the numbers on a digital television change,only the differences between the old picture and the new one change.So the change is very fast and the picture and sound quzlity are very good.
英语人气:832 ℃时间:2019-11-15 07:37:19
优质解答
电视上的画面能欺骗你的眼睛.你看一张图,大脑对于图片的记忆只能维持十分之一秒,然后你必须再看一遍.所以当你的大脑必须在一秒之内看超过十张图的时候,你会感觉图片是移动的.你可以自己试试:在笔记本上每页都画同一...
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