How It Gets Its Shape
How It Gets Its Thickness
Now think about how thick your cookie is. If you press the dough gently, it's thin. If you press hard, it’s thicker. Coins work the same way! The stronger the pressure from the machines, the thicker the coin becomes. So by changing how much they squeeze the molten metal, makers can make coins that are just right, not too thick, not too thin. A coin gets its shape and thickness by being pressed between two big, strong machines that squeeze it like a magical cookie press.
How It Gets Its Shape
Imagine you're pressing a soft dough ball between two flat, smooth plates. The dough takes the shape of the plate, that's what happens to a coin! When the molten metal (like hot soup) is pressed between two big, strong machines called rollers, it becomes flat and round, just like a coin.
How It Gets Its Thickness
Now think about how thick your cookie is. If you press the dough gently, it's thin. If you press hard, it’s thicker. Coins work the same way! The stronger the pressure from the machines, the thicker the coin becomes. So by changing how much they squeeze the molten metal, makers can make coins that are just right, not too thick, not too thin.
Examples
- Coins are made by putting metal blanks through a machine that squishes them.
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See also
- What Causes the Northern Lights?
- How Does a Mirror Work Exactly?
- How Does Gravity Affect the Moon’s Orbit?
- What Causes a ‘Golden’ Sunset or Sunrise?
- How Does Gravity Affect Space Travel?