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Daily Digest - September 23, 2019
Daily digest is your daily dose of knowledge. There are 365 topics and each day will cover a different topic. It gives valuable information on topics like physics, knowledge, emotions, entertainment & spirituality. Click on archive and view all the topics of the year.
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Copy Machine :

You have heard about a Xerox machine. What does this Xerox machine do? It copies the words, picture etc on a piece of a paper. You must have gone to the shop to make a photocopy of documents, picture etc. But have you ever thought of how does a Copy machine or a Xerox machine Work?


A copy machine uses static electricity to make a copy of a piece of a paper you place inside it. Static electricity is made up of positive and negative charges. In a copy machine the positive charges work like a magnet. They attract black powder called toner. The powder fills up all the spots to make a copy of the words and picture on your paper.

How does the copy machine make copies?

An image is on a drum. When the copy machine button is pushed, a strong light hits the page that is to be copied. This light is reflected and passes through the lens. This creates an image of the page on the outside of a turning cylindric drum. Because the image of the drum is created by positive charge of state electricity you cannot see it. Only the dark parts of the picture and words on the page are positively charged. The negatively charged black powder is sprinkled on the copy machine turning drum. The negative toner is attracted by positive charge. The portion which is not attracted remains white. The picture made on the drum is transferred on the paper. The toner is powder. It cannot stick to the paper by itself. The paper passes through the heating rollers. Heat roller sticks and image is printed on the paper.

Science Revolution:

In the 20th century, science discoveries has created revolution in each and every field. Day by day they give us comfortable life. Solves and removes all the problem. Computer Laptop, Palm Computer etc. Day by day the world is getting shorter. Many invention has taken place in agricultural field also. Medical field has made a tremendous changes. Incurable diseases can be cure easily. You can become scientist and let the world get advantage from your inventions. If you have interest in science, it is very easy for you. And be a part of science revolution.

Facts :-

As you grow old your eyes never become bigger but your nose and ear never stop growing


Good thought: - “ Understand Intellectually, Expand through discussion and study with Responsibility.”

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