We have been using ball pen to write on paper since childhood, But have you ever noticed one thing, when we run a ball pen on paper, then it writes
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But when we use this ball pen If you run it on a glass or oily surface, then it is not able to write,
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The question comes why it is so? Let's find the answer
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There is a refill in the ballpoint pen. In this refill, a socket with roller ball mechanism is installed on one end,
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Just after it is filled with ink and a semi-solid grease is applied to the other end. Which prevents the ink from drying out and leaking out.
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When the ball pen is run on the paper, the roller bulb rotates in its place, due to which the ink comes out and writes on the paper.
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But when you move this ball point pen on any glass or oil surface, it does not move at all.
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Because the friction of glass and oily surface is much less than that of paper
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That's why the ink doesn't come out and you can't write.
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Rich allegedly attended Birmingham University and majored in law. It was at this location that she met her future spouse.
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