PART 1. MACHINES
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Hi everyone! Let's have a look at this building.
00:00:05
It is a…
00:00:12
Puzzle! Right! Puzzles were very important buildings during the Middle Ages.
00:00:15
Tell me, do you think people used machines during this period of history?
00:00:23
Yes, you are right again.
00:00:33
Look, this knight wants to throw a stone towards the castle walls.
00:00:40
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.
00:01:47
Right. Here I have another machine people used during the Middle Ages.
00:02:08
Do you know the name of this machine? It's an assault tower.
00:02:21
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.
00:03:10
- Autor/es:
- ROSARIO MORÓN
- Subido por:
- Maria R.
- Licencia:
- Todos los derechos reservados
- Visualizaciones:
- 178
- Fecha:
- 27 de abril de 2020 - 17:54
- Visibilidad:
- Clave
- Centro:
- CP INF-PRI MARIANO JOSE DE LARRA
- Duración:
- 03′ 18″
- Relación de aspecto:
- 16:9 Es el estándar usado por la televisión de alta definición y en varias pantallas, es ancho y normalmente se le suele llamar panorámico o widescreen, aunque todas las relaciones (a excepción de la 1:1) son widescreen. El ángulo de la diagonal es de 29,36°.
- Resolución:
- 848x480 píxeles
- Tamaño:
- 33.32 MBytes
