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Why there is a split in the nib of a pen...

Why there is a split in the nib of a pen?

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### Step-by-Step Solution: 1. **Understanding the Structure of the Nib**: The nib of a fountain pen is designed with a split or gap. This split is crucial for the functioning of the pen. 2. **Function of the Split**: The split in the nib allows it to act like a capillary tube. A capillary tube is a narrow tube that can draw liquid upwards against the force of gravity due to capillary action. 3. **Capillary Action Explained**: Capillary action occurs when the adhesive forces between the liquid (ink) and the surface of the tube (nib) are stronger than the cohesive forces within the liquid. This causes the ink to rise in the nib when the pen is held in any position. ...
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