11 interesting photos that explain the questions about the world around us

In life around us there are many interesting things but not everyone knows and learns. The 15 large pictures that describe how the following items work will help you learn a lot more about the world around you in the simplest and most concise way.

1. This is how the rotary button works, familiar items in every family but not everyone knows about this.

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2. How to extract the sewing machine working to create the perfect seam.

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3. After seeing this picture, you will know how to draw a right angle on a circle.

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4. The white blood cells in our bodies are always ready to fight against bacterial monsters when they invade.

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5. The way to create sin and cosine looks very nice, surely those who love math will love.

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6. The way that doctors weld your tooth decay.

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7. Most people use improper bandages. And this is the most standard way of armbands.

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8. How to drill a square, the great creativity of engineers.

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9. Close up tattoo process makes many people not from fear.

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10. The action of a pistol on the barrel and release, extremely fast and accurate.

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11. What happens when a grenade is detonated.

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