A door is a movable structure used to open and close an entrance, typically consisting of a panel that swings on hinges or that slides or spins inside a space.
When open, doors admit people, animals, ventilation, and light. The door is used to control the physical atmosphere within a space by enclosing the air drafts, so that interiors may be more effectively heated or cooled. Doors are significant in preventing the spread of fire. They act as a barrier to noise. Most doors are equipped with locking mechanisms to allow entrance to certain people and keep out others.
Doors are used to screen areas of a building for aesthetics, keeping formal and utility areas separate. Doors also have an aesthetic role in creating an impression of what lies beyond. Doors are often symbolically endowed with ritual purposes, and the guarding or receiving of the keys to a door, or being granted access to a door can have special significance. Similarly, doors and doorways frequently appear in metaphorical or allegorical situations, literature and the arts, often as a portent of change.
Read more about Door: Applications, Design and Styles, History, Door-related Accidents
Other articles related to "doors, door":
... to one or more fields deeper within the game via doors ... moving platforms, ladders, spikes, enemy sea-life and one or more exit doors ... The doors are often positioned in hard to reach places and it is the player's goal to plan a safe route to one ...
... Doors which lead from interior, pressurized, sections of an aircraft to exterior or unpressurized areas can pose extreme risk if they are inadvertently opened during flight ... This can be mitigated by having doors that opens inwardly and is designed to be forced into its door frame by the internal cabin pressure - most cabin doors are of this type ... However, an outward opening door is often advantageous for cargo doors to maximise available space, and these need to be secured by hefty locking mechanisms to overcome internal pressure ...
Famous quotes containing the word door:
“Alice opened the door and found that it led into a small passage, not much larger than a rat hole: she knelt down and looked along the passage into the lovliest garden you ever saw. How she longed to get out of that dark hall, and wander about among those beds of bright flowers and those cool fountains, but she could not even get her head through the doorway.”
—Lewis Carroll [Charles Lutwidge Dodgson] (18321898)
“To fight oppression, and to work as best we can for a sane organization of society, we do not have to abandon the state of mind of freedom. If we do that we are letting the same thuggery in by the back door that we are fighting off in front of the house.”
—John Dos Passos (18961970)
“The door is opening. A man you have never seen enters the room.
He tells you that it is time to go, but that you may stay,
If you wish. You reply that it is one and the same to you.
It was only later, after the house had materialized elsewhere,
That you remembered you forgot to ask him what form the change would take.”
—John Ashbery (b. 1927)