hello we have bin learning about the middle ages in science. We also did a project where we remade a ( card-bord ) castle.
About The Middle Ages
The Middle Ages
The Middle Ages was in europe from 400AD – 1400AD. It started wen the Roman Empire was destroyed. Many people think that every thing was wors in the Middle Ages so it can be called The Dark Ages ( every thing wasn’t wors ).
Feudal system
The feudal system is a form of class system. At the top of the class system is the king, then the nobles, then the vassals and finally the peasants are at the bottom. The king gives land to the nobles who give soldiers to the king, the vassals are the soldiers who give protection to the peasants and fight for nobles and the peasants work for the vassals.
Pulleys And Gears
Pulley
Pulleys are used pull string and something else well move in the opposite direction that you move the string. There are two tipes of Pulleys. Fixed Pulleys are attached to a structure mechanical advantage ( mechanical advantage is how much easier a simple machine makes something ) and move and gives able Pulleys are attached to a load ( load is what you’re pulling ) and give a mechanical of 2x.
Gears
Gears allow you to tern an object in a direction you otherwise wouldn’t be able to by having one gear tern another gear. There are 4 tipes of gears Spur gears can be used to tern something and it will move something else in another place, Bevel gears alow you to move a gear and it will tern another gear at am angle, a rack and pinion gear can change a turning motion into straight motion using a rack and pinion, the worm gears slow things down by using a gear and a spirle with teeth ( teeth are the bumps on a gear ) and a pole.
Castles
A castle is a structure which has a community in it. Castles have many parts a moat is a dich to makes it harder to get in during a war, a barbican is a tower used to protected the gate, the curtain wall and towers is an outer wall witch is the perimeter of the castle, the fortified gatehouse is the castle entrance but there are traps to trap intruders, the keep is the best, biggest and strongest tower and is the made area of the castle and he inner wall is a wall in inbetween he inner part of he castle and the curtain wall so intruders have to go through two walls.
Draw-Bridges
Draw-Bridges are the main entrenses of castles and alow people in the castle to deside whether or not they want people to come in and out. they do this by pulling the draw-bridge up and down. If the draw-bridge is up people can’t cross the mote if it’s down then they can. They do this byusing a pully and some castles also use gears.
Hypothesis
My hypothesis is: I will make a pully system for the drawbridge I will have a pully were one side is attached to the top of the drawbridge witch will be the load and you will pull down on something witch will pull the drawbridge up. I will make a bevel gear to move the flag up and down you will move a gear side wase and it will move the flag up and down.
Procedure
This is how I made my castle so far.
- Get a card-board box,
- cut that card-board box in to the shape of a castle,
- cut card-board into different rectangles,
- hot glue the rectangles into the keep and turrets.
That is what I have done so far.