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Hi everyone! Let's have a look at this building.

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It is a…

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Puzzle! Right! Puzzles were very important buildings during the Middle Ages.

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Tell me, do you think people used machines during this period of history?

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Yes, you are right again.

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Look, this knight wants to throw a stone towards the castle walls.

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He is going to use the energy from his hands.

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Let's see what happens.

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He can do that.

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He can also use this machine. Do you know the name of this machine? Right! It's a catapult. Let's see how it works.

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The knight puts the stone on one side and presses on the other side.

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Look what is going to happen.

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If he uses a catapult, it is easier to throw the stone and he can throw it further with the ace of hearts.

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Right. Here I have another machine people used during the Middle Ages.

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Do you know the name of this machine? It's an assault tower.

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Look, here there is a wheel and here there is a rope.

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When you turn the wheel, the bridge lowers, and if you turn the wheel on the other side, the bridge rises.

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This is how the Assault Tower works.

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One side, and presses on the other side.

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Look what is going to happen.