The moat, which was originally supplied by the Thames but has been drained since 1843, surrounds the outer curtain. Outside the moat, the wall features gun embrasures; opposite these, contemporary artillery pieces are fired ceremonially on state occasions. The entire building complex spans 18 acres (7 hectares).
The word "curtain" comes from the old English word "curtaen," which means a fence or hedge. Thus the term "curtain wall" refers to an exterior wall that encloses a property or institution.
The phrase "Tower of London" is used interchangeably with "London Castle." The castle stands on a mound of earth within the walls of the City of London. First built in 1066, the current structure is mainly 12th century. It was renovated in the 15th century after suffering damage during the Battle of Barnet in 14AD when the future king Edward IV defeated the forces of his uncle, Richard III, who had claimed the throne.
The Tower has been used for imprisonment, as a treasury, and as a place of execution. Today it is home to several royal families' treasures, including the Crown Jewels. The tower also contains three museums: the Crown Jewels, the Medieval Palace, and the White Tower.
In conclusion, the outer curtain of the Tower of London is 16 feet (5 m) thick. It was built between 1171 and 1220.
A curtain wall is a defensive wall that exists between two towers (bastions) of a castle, fortress, or town. The wall itself may be made of stone or brick, but more typically it is made from wood frames filled with glass or other transparent materials. In modern buildings, curtain walls are used to enclose entire floors, often including areas where storage or office space is required.
Curtain walls provide protection for people on the inside and allow views out into the surrounding area. They can also be used as security measures by providing a window through which anyone trying to enter the building is visible. This means that visitors or potential thieves would be able to see people on the inside and thus avoid walking into an ambush.
In addition to protecting people within the enclosed space, curtain walls provide privacy for those on the inside. Because they are only viewable from the outside, individuals on the inside do not have to worry about people looking in their windows or doors. This is particularly important if they need to conduct private conversations or read sensitive documents without being overheard by others.
Finally, curtain walls provide decoration for buildings covered in advertising, logos, or other visual stimuli. They serve to give life to otherwise dull spaces and make them appear more welcoming.
Essentially, the castle is surrounded by two distinct rings of curtain walls; the inner wall was always taller than the outer wall, allowing archers to fire at the enemy from a vantage position (as you can see in the image below). The significant breakthrough was that the outside wall was not merely employed to support the inner one. It was also used as a weapon itself!
Archers would line both sides of the inside of the curtain wall with arrows stuck into the ground or mounted on poles. When an attacker came near enough, they would be able to shoot them off the wall.
This is why there are usually more arrows stuck into the ground near the outside of the castle walls - this shows that it is safe to approach. And when enemies were close enough, they would often flee after seeing all the arrows stuck into the ground.
In addition to being used as weapons, the outer wall of a castle often has openings for firing guns or other firearms. These gunports were usually located on the third level, which is where defenders could provide cover while still having clear views outside. They might also include a small window through which soldiers could throw rocks or other objects at the approaching enemy.
There are several castles in Europe that still have their original double ring of curtain walls. One of them is Falkenau Castle in Bavaria, Germany. It was built between 1160 and 1190 and has been protected since 1980 under UNESCO's World Heritage Site designation.
The outer baileys were often surrounded and defended by a ring wall and divided from the castle's real living area—the inner ward and keep—by a moat, a wall, and a gate. The outer bailey of a lowland castle is typically arranged in a half-moon pattern around the main castle. That is why it was called "ha'bella" — the old English for "half moon." The term "bailey" comes from a German word meaning "courtyard."
An early medieval bailey was generally defined as the area within the walls, but outside the palisade, where soldiers could gather with their lord and defend his land against invasion. It was here that they kept horses and other livestock, raised crops to feed themselves and their families during times of war, and collected taxes from the local population. In return for this service, the men of the garrison received protection from violence within the town or village itself. If enemies were defeated, the villagers would receive gifts of food and armor to thank them for defeating the enemy.
In larger towns and cities, there might be several smaller enclaves within the city limits called "bays," or "bars," which were under the authority of a mayor or governor. These areas usually consisted of clusters of houses around a church or public fountain. They were used for defense purposes as well as refuge for the homeless and poor.
Curtain walls' major function is to keep air and water out of the structure, effectively functioning as a buffer and an insulator. Buildings with curtain walls will be easier (and less expensive) to maintain, and will survive longer in general, because they have an extra protective layer built in. The wall also makes the building more attractive by adding color and design.
There are two main types of curtain walls: glass curtain wall and metal curtain wall. Both provide protection from the elements while letting in light. They also add style to the building. Not all buildings need a curtain wall, but if yours is looking for additional protection from the outside world, this is the best way to go.
A glass curtain wall consists of horizontal panels of glass that are framed by vertical mullions and transoms. The frame provides structural support while allowing light to enter the building. Light enters through the mullions (the vertical members between the panes of glass) and is distributed among the panes of glass via holes called transoms. A glazier installs the glass and may also install electrical wiring behind the glass or within the mullions.
A metal curtain wall is similar to a glass curtain wall except that it uses aluminum instead of glass. Metal has certain advantages over glass including being lighter, stronger, and less fragile. However, it cannot be cut like glass can, so metal curtains usually require special molds to create their shape.
An early definition of the curtain wall was "a continuous curtain of masonry perforated by windows." This refers to a form of architecture in which there is no overt manifestation of structure, but in this case, I'm talking to lightweight claddings that are positioned ahead of the plane of the...
The curtain wall has had many forms over time. It can be as simple as wood or metal panels sandwiched between glass bricks or as complex as sculptured stones arranged in patterned walls. The ancient Greeks and Romans used thick wooden shutters made to match their house colors; these were drawn up at night and down during the day to control light and heat. In modern buildings, curtain walls are used to provide visual appeal as well as protection against the weather. They can be made of any material, but common ones include glass, concrete, steel, and stone.
Curtain walls have been used for centuries, but they became popular again in the 1920s and '30s. The most famous example is probably Rockefeller Center in New York City, which features giant aluminum curtains opened and closed by an electric motor for effect.
Today's skyscrapers are mostly made of glass and steel, but some still have curtain walls for aesthetic purposes or as part of overall building design. For example, One Canada Square in London has an exterior made of limestone carved with geometric designs and colored dark blue to match the tower's body.