A fountain pen is like a tiny water balloon that never stops filling up. When you write, the ink flows from inside the pen to your paper because of a little air pocket that helps push it along. It’s like having a helper inside your pen who makes sure the ink keeps coming so you can draw or write without stopping.
The Magic Inside
Inside the pen is a special kind of ink that likes to flow. When you press down on the pen, the ink moves up and out through the tip to your paper, just like when you squeeze a bottle of juice and it comes pouring out.
Examples
- Writing a thank-you note with a blue pen feels like magic, no buttons or batteries needed.
- Drawing a picture with a red pen makes the paper feel happy because it gets wet and colored.
- The ink moves through the pen just like juice moves out of a squeezed bottle.
See also
- How Did the Internet Begin?
- How Does a Smartphone Recognize Your Face?
- Why Do We Use Passwords for Security?
- Why Do We Get 'The Runs' on Planes?
- How Does a Fridge Keep Food Cool?
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Categories: Technology · fountain pen· ink· writing tools· mechanics · Text is available under the Creative Commons Attribution-ShareAlike License.