VANDALISM -Issues of Design 27

Post 692by Gautam Shah

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640px-Graffiti_Kom_Ombo

Vandalism is willful destruction of property and culture. Property and culture are spacious words. Property includes buildings, structured public assets, art, artefacts etc. Culture covers political, religious, economic and social systems, and institutional arrangements. A property can subsume culture, so any danger to former is a threat to the later. Vandalism is as much a personal act and common act of individuals, as it is conduct emulated by individuals with some commonality, so group-based conduct.

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Vandalism is interpreted as criminal damage, misdemeanor mischievous behaviour, malicious or otherwise trespassing, breach of privacy, felony offense intentional indifference. Vandalism laws are designed to prohibit and discourage the such conduct.

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Vandalism is an attempt to change the existing set of things or order. It may not involve annihilation or removal of things. On occasions, the actions are directed to the owner, authority or God. And even if the search for them is solvable, but the vandals may have nothing to correspond except the intense desire to register their presence.

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Destructive actions can be ascribed to anger or envy, or to spontaneous, opportunistic behaviour. The action may be for peer acceptance or bravado in gang cultures. The cause of disgruntlement with a person or society could be absence of a target. Private citizens commit vandalism by willfully damaging or ignoring the damage to the property of others or the common assets.

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Vandalism against the common values of the group or society may arise for not being included or invited. It may be that the opposed values are too prominent and so the target. Values enshrined in properties are challenged when changes for betterment or creative interventions are made without due permission or authorization are made. Values are compromised when subtle or explicit ideological ‘messages’ are conveyed through public expression or conveyance through social media. The vandalism may occur when values conveyed through a declaration may be subjectively interpreted as harmful or annoying.

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In the world of internet and social medial vandalism takes the shape of ethical and revengeful hacking of domains and data there in. It may also include persistent and massive ‘trolling’ through hash-tags.

9 Burning of the Euromaidan headquarters in the Trade Unions Building.

Political vandalism is ideological ingress leading to protests, riots. So far it remains an expression it can be tackled through debate. But it can turn an expression of hatred and intimidation. Vandalism can be perceived as a legitimate act, and a social warning for course correction. So minor action may be ignored.

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In Design and other fields, plagiarism of concepts is equated with vandalism. Similarly altering, correcting, extending, renovation, removal of someone’s creation is always debatable, and borders to an act of vandalism. These include morphing, photo-shopped images, edited videos, etc. Other acts of design barbarism are ‘under or short’ designing a brief, overshooting budget, ignoring the stakeholders, generating non-performing solutions and infringing other professionals’ duties.

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12 Bad additions to building geograph-3841100-by-Peter-Barr

The name Vandals is connected to that of Vendel, a large East Germanic tribe or group of tribes initially from the name of a province in Uppland, Sweden. It is believed that Vandals migrated from here to establish kingdoms in Spain and then North Africa in the 5th C. Renaissance and early-modern writers characterized the Vandals as barbarians who sacked and looted Rome. This led to the use of the term vandalism to describe any senseless barbaric defacing of artwork. The etymology of vandal may be related to a Germanic verb wand -to wander.

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This is the 27th article (in continuation of old series -new beginning) on ISSUES of DESIGN

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SASH WINDOWS

Post 691 –by Gautam Shah

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The word sash, derives from the French chassis, which means a frame or a window shutter that holds a glass pane. Technically sash windows refer to an opening system where the framed glazed panels are opened by sliding vertically, or horizontally, against casement windows where shutters are hinged and open sideways. Sash windows, when opened, have no shutters projecting out, so resist rains better and pose lesser fire risk. Sash windows are less susceptible to warping due to moisture, as the shutter is bounded by a frame. Sash windows open by remaining within their frames, so do not distract, as do the hanging shutters of the casement windows. The casement shutters had to be of small-width, or tended to ‘drop at the free edge’. The small shutter width required many mullions to divide the opening. The wrought-iron hinges and lead cames of the casement windows were dark and heavy, compared to the clean image of the sash windows.

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Sash windows allow control over air ventilation, as it can be opened to a small slit to nearly 50 % of the opening. By keeping open both the top and bottom of a sash window by equal amounts (in double hung sash window), it allows warm air to leave at top and cool air to enter through the bottom. This facility of controlled ventilation saw major drive for use of Sash windows replacing the Casement windows.

9 Gulllotine Sash Window Châté_Lîzabé_f'nêt'

The earliest-known use of sash windows was in the later part of the 17th C. Sash windows with their better proportions and elegance compared to casement windows, soon became the most important visual element in buildings of the 18th and 19th C. Sash windows became so popular that people who could afford, replaced the leaded-light casement windows. Many 16th and 17th C houses have ‘replacement sash windows’. Such changes, however, were affected on the main facade only, less prominent facades and side faces continued with the original casement shutters.

3 At_Paraty,_Brazil_2017_100The window tax (during 1696 – 1861, in England) forced people to wall-up unnecessary windows to save tax, and also add fictitious windows for the sake of composing a facade. In spite of the taxation (window tax and a heavy excise duty on glass in 1746) discouragements, this was the period when windows design saw some of the most innovative changes.

Windows were initially positioned flush with the front face of the building, but great fire of London forced authorities, in 1907, to set back all windows by 4″ from the outer face of masonry. To further reduce the risk of fire, in 1774, the exposed wood box containing the cord and weight mechanism was required to be concealed in the side masonry.

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The first sash windows of 17th C were glazed with very heavy glass requiring thick oak frames and glazing bars. However, with the availability of thinner cylinder glass from 18th C onward during Georgian period, sash windows became lighter and elegant. Production of plate glass, from 1850 onward allowed, larger panes of glass. Larger and thinner glass panes required no or fewer glazing bars. The reinforcement offered by the glazing bars was eliminated, and so horns had to be added to strengthen the junction of the meeting rail with the frame. In more expensive work, the glazing bars were made of iron or brass and painted to appear like wood.

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To slide open a sash shutter by sliding up or down, its weight is balanced by counterweight concealed within the window frame. The counter weight bar of lead, wrought steel or cast iron is connected to the window by a sash cord or chain running over a pulley at the top of the frame. The wheels were of wood or brass. In later versions spring balances were used. In earlier versions the weight boxes, set flush with the outer wall, seemed very heavy, but in later versions due to fire laws the weight boxes were concealed in side masonry, making the sash windows look much lighter.

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The glass used in early sash windows was not very clear, so the view through was fuzzy. The divided pane divided and framed the view into smaller bearable units. The presence of glazing bars, was a ‘relief’. As glass technology developed larger panes, free of the blur and blemishes were available requiring thinner or no mid glazing bars.

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The earliest sash windows were of natural wood colour, with brass and cast steel hones, joggles, weight covering plates etc. Curved horns, multi-arched heads, intricate mouldings, leaded lights and latticework started to appear in the sashes, which were often grouped into impressive bays and offset with ornate stone reveals. The shutter and the side box were made from different quality of wood. The sash window was a strange mix of materials and finishes. White painted sash windows provided single finish effect, very well contrasted by the brick masonry. The white colour over glazing bars also reduced their presence against the glass, making the windows look more elegant. The preference for white colour sash windows has continued till today even though materials have changed from wood to plastics, steel and aluminium.

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Before 1887 buildings tended to be painted in one colour, usually white, beige or gray. But later people began to paint their houses in lighter and brighter colours. The vibrant colours became a key identifiable feature of Victorian architecture. The latter part of the 19th C brought a new attitude toward colour, but sash windows continued to be painted in the Queen Anne style of white.

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Sash windows originated as an opening system with two distinct sections: the top was of fixed glazing (divided into smaller lites) and the bottom section had a casement or sliding (vertical) sash. Some exceptional buildings had exterior-wall flushed windows with sash sliding horizontally and parking on the side wall.

Divisions in Sash

The bottom and top sashes (two are not necessarily of the same size) were divided into 3 x 2 =6, 3 x 3 =9 or 4 x 2 =8 glass panes. Each vertical rectangle reflected the proportion of the whole window. The 3 x 2 = 6 glass pane divisions have been accepted as the classical pattern for sash windows.

Boston USA Historic houses

Windows with one movable sash are called single-hung sash windows, to contrast from double-hung sash windows, where both sections open by sliding against one another. Alternatively, one shutter opens by sliding and the other opens out or inward with simplex hinges. Simplex hinges allow the shutter to get locked on one side while the other side is freed for opening for escape or easy cleaning of shutters from both sides. Typical double-hung windows of Georgian architecture feature the lower sash in front of the upper sash. The fixed sash at the top allowed it to match the curvilinear arched openings.

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Triple and quadruple hung windows are used for tall openings, common in New England churches. Among the numerous types of 18th C sash windows, the tripartite or Venetian consisted of a central sash with two side lights, one pane wide. The side lights were often fixed, with the sash cord running over their heads from the central sash into the weight boxes.

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In tropical climates, double-hung sash windows were covered from outside by fixed louvered shutters. Some double-hung windows have a full window screen that needs to be positioned suitably over the open section. Sash windows were also built to appear as casements in Gothic and Tudor Revivals. These often involved elaborate detailing with moulded mullions and even concealing the boxes for pulleys and weights.

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The growth in use of the casement increased during the Edwardian period, and by 1910 many houses were built with timber casements, with sash windows relegated to less important elevation. By 1939, the use of sash windows was confined to neo-Georgian buildings, particularly post offices, banks, public houses and local housing estates.

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Georgian Windows are classical double-hung sash windows. Early in the 18th C, Georgian window of 3 x 2 =6 panels per sash matured. This basic configuration ofsix panes over six panes’, remained in use even after the advent of larger panes in the 19th C. Georgian sash wood windows remained widely used form till the use of steel casement windows, as a cheaper and functionally superior option.

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8 Horizontal Sliding windows geograph-1620701-by-Alan-Murray-Rust

Horizontal Sliding Sash Windows have two or more sashes that overlap slightly but slides horizontally within the frame. In UK, these are sometimes called Yorkshire sash windows, presumably because of their traditional use in that area.

Box-head Sash Windows have shutters sliding vertically into the wall space above the header. Guillotine Windows have only one of the two sashes, usually the top one dropping down. The early versions of windows were without the counterweights or balancing system, and so had a tendency to come slamming down. Hanging Sashes are hung on a cord connected to counterweights.

 

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DOOR PROPORTIONS

Post 690 –by Gautam Shah

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1 Geometrie Proportion Portal

2 Door Geometrical Divisions

A door has some fundamental significance, Proportion (of Width vs Height aspects), Size (anthropometrics) and Scale (relative size to things around it). And all these imply different meaning on the exterior and interior faces. The door size, proportion and scale, relate to the architectural schema, fore-space and contours, interior of room, and functional passage requirements.

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Doors have shutters, gates, frames, portals, surrounds, heads, thresholds, and other architectural adjuncts. These elements affect the form of the door. The doors could be really or perceptively narrow, wide, tall, short, small, large, thin or deep. But proportion is one character that remains consistent in all scales.

18 Chapel Door by Sigurd Lewerentz httpswww.flickr.comphotosseier2340686947

PROPORTIONS

Most common set of proportions (Width : Height) have been: Two squares 1: 2, and Golden proportion 1:1.61. Other shapes include Square (Le Corbusier’s Ronchamp Doors), Horizontal Rectangle (Air hanger’s shutters). Sliding doors have a horizontal rectangle form. For twin shutters, each is of square shape. Multi panelled shutters have to maintain the horizontal bias for ease of movement. The real proportion of a door is seen when the shutter is open. A mid-pivot shutter may divide the opening in equal or unequal gaps. A door opening is more prominent if it is deep-set in the portal, or has contrasting colour+texture from its surround structure.

5 Square Ronchamp door by Le Corbusier httpswww.flickr.comphotosyellowbookltd3648223450

4 Entry Gate to Assembly Building Capitol Complex Chandigarh India Wikipedia Image by Lillottama

The vertical rectangular form makes the opening taller then its width. Small-width doors are technologically more efficient to construct and operate it ergonomically. Such narrow widths reduce the load on the hanging devices such as hinges and so are easy to open. Horizontal sliding doors, for easier movement, need to be wider then their height. Square doors are favourite with designers, but cannot be hung on side-end hinges. A square gap mislays its form when opened on mid or offset pivots. Very wide doors use vertical or horizontal pivots (garage doors) or sliding mechanisms (Japanese doors, Shop Rolling shutters).

Lincon Main Entrance

Historically Door Goal Portal Input Gate

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Instead of a wide door, multiple (ganged) doors used at railway station are multiple units in a row. Similar effect occurs for multiple folding or stacking shutters for verandahs. Multiple doors and shutters provide spaced control for simultaneity, location, orientation. Where multiple tracks are not, feasible, shutters are joined together like the bellows of an accordion to form a sliding and folding stack. Folding or collapsible doors were first used in cabinets and cupboards, and diffuse the exchange over a wider zone.

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SIZE

A door is primarily sized for passage of humans, but often designed for mix of purposes. Some doors are exclusively for passage of goods and animals (hoppers, trap or flap doors), and so may not have any size relevance for human passage. Doors are functional elements of optimal size yet economics and technology govern its size and details. The critical aspect of door design is its width aspect. An insufficient width retards the speed, or even makes it difficult or impossible to transit through. But small width enforces discipline on chaotic traffic of entrants. Narrow width openings increase the integrity of the load-bearing structure. A very generous width fails to. Such wide openings need extra dividing barricades to channelize the traffic, or multiple narrower sub-gate systems. Bunker doors must be carefully small sized for increasing resistance to blast pressures.

Médinet-Abou. Porte du Grand Temple (Égypte) _

Door portal size and the size of the shutter, are two different things. Doors of extra ordinarily large sizes or monumental proportions have been used through ages. A large door metaphorically denotes unrestricted transit, grand reception, fearlessness or power, affluence, and dominance. Technologically a door shutter cannot be very large, so doors placed in large portals and with adjunct structures.

18 False Door dawn of civilization Egypt and Chaldaea

As a social concern in modern times, it is essential to provide doors widths suitable for disabled persons, using walking stick, crutch walkers, a wheel chair, stretcher or assisted by others. Widths of doors for, toilet, elevators, closets, store rooms, change rooms, and such other lone user utilities are considered more critical for such users.

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Some famous doors > Treasury of Atreus, Mycenae 9′-0” x 18′-0″, Parthenon, Rome 0′-0″ x 24′-2″, Erechtheion, Athens 8′-0″ x 17′-2″, S. Martin, Worms 5′-8″ x 11′-3″, Palazzo Pietro Massimi, Rome, main entrance door 6′-10″ x 13′-8″, National Archives in Washington, DC, Constitution Avenue bronze doors 37′-7″ x 10′ (and 11″thick), Vehicle Assembly Building VAB of NASA door height 456′.

10 Vehicle Assembly Building VAB of NASA door height 456'

Simple sliding doors allow variable and exact control over the width of opening. Automatic sliding doors such as for elevators and for entrances of public buildings open to width governed by the density and frequency of traffic. Revolving doors have optimum opening size to maintain the air lock and prevent anyone forcing a reverse movement. Folding shutter doors allow incremental width of the opening. Garage doors sliding up were devised to get a maximum width of opening.

11 Shutting-Opening-Pushing a hinged, pivoted or sliding Door if large sized, can be a technological issue

Height of a door is checked for three parameters: the height available within the opening, the height of the door head, and the height of the threshold. The actual passage height of a door is affected by the level of terrain immediately inside and outside the door. Low level doors have been used to reduce the heat gain or loss (e.g. igloos), the storm water (e.g. sea front warehouses in America).

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SCALE

The scale of a door is governed by the architectural scheme, impinging built mass and the surrounding terrain. The scale of a door is also referential. Proportionately a door or gate opening seems smaller, if the adjacent wall or barrier system is very evident. On the same scale a large or multiple openings make barriers less effective. The exchange occurring across a small opening is very intense, compared to a large gateway.

13 Door and Portal Buland Darwaza Fatehpur Sikri India Wikipedia Image by Diego Delso, delso.photo, License CC-BY-SA

14 Adjunct structures Gwalior Fort Entry Gate Wikipedia Image by Divyarthsuryavanshi httpscommons.wikimedia.orgwikiFileGwalior_Fort_Entry_Gate

Adjunct structures enhance the perceived scale and significance of the door. Fort gates and other gateways have not only very large doors but also have elaborate adjunct structures like portals, abutments, ramparts, bulwarks, bastions, Bastille, battlements, belvederes (Chhatri), buttress, campaniles (bell towers). Historically, very large (wide and tall) doors have been a necessity, for functional passage as well as for splendour. Doors are intentionally made smaller, if these are insignificant (backdoor, servant door, supply door), or need to be concealed, such as the secret or escape doors. Mid town gates are designed as multiple (three or five) openings to serve different levels of traffic. Doors are added with side and top lites, pediment, surrounds, free columns or half-pilasters to enhance the scale.

20 Hypostyle Hall of the Hathor Temple at Dendera (XI) httpswww.flickr.comphotosisawnyu8390823916

Egyptian temples had very tall openings, the lower section was shuttered and the upper section was a left over gap, which allowed entry of early morning Sun God Ra. Gothic churches had upper section of the door converted into a Rose window. Very tall doors, unless required for passage, are turned into transom lites. Very tall doors require a visual correction. Romans constructed tall doors with a wider base and narrower top. For very tall doors, the construction of strong shutter and relevant opening control mechanisms have been the greatest deterrent. Tall opening like effects are created with architectural door portals and alcoves where the functional door is very much smaller.

15 Pantheon Entrance Wikipedia Image by daryl_mitchell from Saskatoon, Saskatchewan, Canada

Low level doors have been used to reduce the heat gain or loss (e.g. igloos), the storm water seepage (e.g. sea front warehouses in America). Romans constructed tall doors that were wider at the base than at the top to correct the visual perspective.

16 Lateral stiffening of Dam Gates in Matsumoto city, Nagano prefecture, Japan. Wikipedia Image by Qurren

Large door shutters require lateral stiffening, as the usual thin shutter leaf construction is insufficient against buckling forces such as the wind, blasts, and often sonic boom pressures. Aircraft hangers’ and spaceships’ assembly workshops (Apollo, Columbia, USA) have very large doors with additional lateral framing. Hanger doors are designed to be sliding from top, bottom or both. Similarly dams and canal gates have to resist not only the pressure of retained water but dynamic pressures of waves and eddy currents. Such doors are designed as 3D entities. Stadia and such public spaces where people are likely to push against the gates, extra lateral stability is required.

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DISTANCE as an ELEMENT of DESIGN -Issues of Design 26

Post 689 –by Gautam Shah

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There are several ways ‘distance’ impacts a design. The physical distance is essentially scaled to human body measures and work capacities. The sensorial measure of the space is the reach in space. All these, help us to equate the suitability and adequacy of spaces for different purposes.

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The distance, refers to a physical measure, a separation, and perception of proximity or remoteness from an extraneous location.

1 Measure Between

2 Separation

3 Perception

A physical space has filler elements like, people, objects and environmental affectations. These elements have their own sizes and also have medial spaces. The scale of the physical space, and the relationships between objects-objects, people-people and objects-people, are factored by the distance.

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ONE      We measure the space in terms of distances, at realistic level, between ‘us’ and things (A to B). Inversely, we also measure the space for the perceived (likely) distance (B to A) between things and ‘us’. The objective (A to B) and subjective (B to A) assessments, together, provide a comprehensive experience of the space. The spatial experience is a maze of relationships and directions. But a constant reference is provided by the Environmental affectations that mark the time and movement. The environmental affectations cause many aberrations of perception of spatial distances and relationships, due to the mix up of the actual and perceived distances. We can exploit such changes to project or contract our presence in a space.

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TWO    When the perceiver is a separator, if somewhere between the two ends, or objects. Distance comparisons ensue, to find out the disparities. The physical distance on either of the sides defines the nearness or remoteness of a thing in space. It helps to know which one is available, useful, required size, intensity, etc. Such distance assessment is often personal and comparative as it depends on reach capacity, need, experience and group behaviour dynamics.

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THREE    Observing anything in space from an external location, the distance is realized as the degree of clarity. The clarity is governed by physical distance from the location of observation. The same distance, however, gets occluded by the intervening activities (chaos, noise, echoes, bounce-back, reflections, disturbances and intermingling of effects) and the environment (fog, smoke, dust). But these also offer a referential spatial scale. The field of perception increases or decreases with the mediating distance.

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Temporal distance refers to distance in time. Something that is temporally close is something that is near in time, whereas something that is temporally distant is far in time. Temporal distance to imagined future events modulates our evaluative representation of them. The greater the distance, the more likely the event is to be conceptualized in terms of a few abstract features. This is relevant in case of potential dangers or risks because this mechanism cognitively separates us from the reality of likely undesirable eventualities.

Psychologists from Walter Mischel to Nira Liberman and Yaacov Trope have labelled the psychological distance: that is, gaps between you and other people social distance, the present and the future temporal distance, your physical location and faraway places –spatial distance, or imagining something and experiencing it -experiential distance.

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When psychological distance is large, we tend to think in more-abstract terms, focussing on the big picture, the desirability of certain options, and why we want them. In contrast, when psychological distance is small, our thinking is more concrete: We focus on the details, the feasibility of options, and how we will use them -Rebecca Hamilton https://hbr.org/2015/03/bridging-psychological-distance

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Distancing is a prime mechanism of offense and defence when methods and means of survival are inadequate, or unavailable. The distance operates at real level, as realized by us, and also as we feel the opponent is perceiving it. Shortening the distance serves an offensive role and enhancing the reach, a defensive purpose. The spatial depth is affected by the separation through occlusion or camouflage. It helps in fuzzing the identity and recognition.

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Anything that lies in ‘front’ (of sensorial nodes -eyes, nose, ears) is always at a ‘shorter distance’, compared to askew encounters, which have ‘greater distance’ (straight, up or down level exchanges). Short distance leads to possible physical contact with intimacy and often breach of privacy. Long distanced contact offers wider space for other actions including time for escape.

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The distance, direction and angle of eye contact affect the intimacy and so privacy. Executives want broad and deep tables to ‘keep the distance’ with the visitors. At a meeting or on a dining table, the chief occupies end-position, and with that no one can take frontal confronting stand.

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Any position against a static and closer backdrop is more assuring, then a backdrop whose depth cannot be fathomed. And for the same reason activities on the backside (stage, podium, office table, information kiosk, reception tables) are not desirable. In a space, one looks for anchorage in the presence of people (even, if unknown), architectonic elements, objects and opaque surfaces. Fixed and familiar things in space, even if physically distanced are better as support. Similarly the location and direction of an exit (door or any other egress point), or a path to it, at whatever the distance, are preferred.

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For an individual, a space segment that allows one to control the distance from others is a safe, predictable and reassuring territory. Here the occupants and objects have intense relevance to each other. In interpersonal relationships the distance delineates isolation, accessibility, domination, submission, agreement, dissension, insulation, engagement, etc.

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The distance and space, both form the notions of Intimacy and Privacy. One physically manipulates, or sensorially perceives the distance from other beings and objects. The sense of vision, hearing, smelling are dependent on the distance. but touch and taste.

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Intimacy is also a biological need, as it relies on compatibility, sexual needs, glandular secretions, social acceptability, etc. It is an attitude, mental conditioning or mental posture. Intimacy could be one-way feeling that is without reciprocal response. Intimacy is not always a function of physical proximity. One can feel close to a person who is long dead -an illusory presence or through notional links (clothes, odours, recorded sounds, etc.).

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Distance Etymology > Distaunce (13-14 C) =a dispute, controversy, civil strife, rebellion, disagreement, discord, strife. Destance (Old French) =discord, quarrel. Distantia (Latin) =a standing apart. Distantem (nominative distans) = standing apart, separate, distant. Distare =stand apart, from the root ‘sta’ =to stand, make or be firm. Modern Distance =remoteness of space, extent of space between two objects or places, an interval of time (originally distaunce of times).=remote part of a field of vision.

This is the 26th article (in continuation of old series -new beginning) on ISSUES of DESIGN

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CASEMENT WINDOWS

Post 688 –by Gautam Shah

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Bay Casement Boothbay Maine Ocean Harbor Window

Casement windows were the most common house-windows, before the sash windows were devised. The shutters of casement windows are hinged on the side, and open either inward and outward. Casement windows provide a full open aperture compared to double hung or sliding windows. The casement shutters could be solid, opaque panelled or glaze panelled. Glazing panes are fixed to the shutter by beading or putty compounds.

Window Wood Rustic

Casement shutters opening inward cause obstruction if there is insufficient parking space for the opened shutter. Inward opening shutters also interfere with window treatments such as curtains, blinds, etc.

The shutters, if of small width open with a handle cum locking device, and if of large width require a crank or lever to open. A wind stay, or a friction hinge is necessary to keep the shutter open in windy conditions, and an espagnolette is used for locking. A casement window is easy to operate with its long armed handle mechanism and so ideal for difficult to reach situations, such as places above cabinets or counter tops. Casement windows open out on nominal hinges or offset hinges that open the shutter little away from the side to allow cleaning, glazing fixing and painting of the exterior face. These are critical issues for casement windows that have protection bars, or are located on upper floors.

Curtain Mountains Window Architecture Outlook

Single casement windows are used on side lites as besides a door or fixed window. Average width of wooden casement windows is 400 to 500. Larger widths up to 600 are possible with friction hinges. Very tall casement windows require patent bolts at both the top and bottom ends to shut a window or keep it open in heavy winds.

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Double casement windows are of two types: one where two shutters meet over a mid member, and the other, where the two shutters meet over each other. The later is called a French window, it opens unobstructed in the centre.

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The casement shutter could be single, opening on left or right side. Casement windows with double shutters, open on left and right sides, or in the middle like the pages of a book. Multiple casement windows have even numbers of shutters divided into sets of two each, all shutters open on one side, or symmetry is created by opening half numbers of shutters on either side.

7 Casements

Casement windows typically are hinged at the sides, but if top hinged are called awning windows, and if bottom hinged are called hopper windows.

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Hopper Windows: A hopper window is a bottom hung a casement window that opens similarly to a draw bridge or a coal-pit receptor or hopper, typically opening to the outside. Hopper windows are used as cellar or subterranean opening.

Hopper Light: Hopper Ventilator: These have inward-opening shutter hinged at the bottom, usually forming the upper section of a door or window.

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Awning Window: An awning window is a casement window that is hung horizontally, hinged on top, so that it swings outward like an awning or a weather shed. Awnings are transom lites, used in upper sections of doors and windows as a ventilator.

9 French Windows 6853387755_6000dff2c0_o

French Window: A French window is really a type of door with a small threshold. It is also called a French door. Two casement sashes hinged on the sides to open in the middle. The shutters nearly extend to the floor and also serve as a door to a porch, garden, verandah, gallery or terrace. It is double shuttered, and both of which for the full height of the shutters, have single or multiple panes of glass. It may have a secondary set of solid or louvered shutters opening to the interior or exterior side.

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Folding Casement: Casement windows hinged together so they may fold into a confined space, such as within the wall thickness. Small width shutters also makes it easier to close without stretching out too much. Folding casements are often auxiliary shutters, such as storm shutters or Venetian shutters on the outer face or fly-mesh shutters on the inner face.

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All types of eaves and window casement shutters, projecting out, were banned to prevent spread of fire along the wall, after the great fire in London in 1707. And these forced adoption of Sash windows (opening upward or downward).

13 geograph-2825199-by-Mike-Kirby

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DYNAMIC CURVATURES -Issues of Design 24

Post 684–by Gautam Shah

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13 Barcelone - Detail of a Gaudi building

A curvature is the synergetic dynamism of a line and the external forces, unlike a straight line which is the path of a force. Antonio Gaudi stated that ‘The straight line belongs to the man, the curve to God.’ All curvatures on earth manifest under two basic forces, the gravity of the earth and the current stresses resetting the earlier status. The curvature reflects the forces, form and ensuing functions. But Dynamic curvature is a live story, telling us How a form changes under stress. Dynamic curvatures are found in spiral coils, serpents, water ripples, plasticity of wet clays, free movements of flying birds, bending of bamboos, sand-dunes, clouds, etc.

14 Gaudi-Casa-Batllo

A line occurs across two things. As per Euclid’s definition ‘The extremities of a line are points’. A ‘line’ in literary sense, had no distinction, It needed an appendage ‘straight or curved’. In this sense a curve is a generalization (stressed or stress-free?) of a line. Historically, the term ‘line’ (perhaps from linen, lino or flex) was used for, rope, hawser, series, row, rule, direction, rope, flaxen cords, thread, cable etc. -many indicating curved forms of line. The difference between a line and curve is of scale.

Curvature, in mathematics, is the rate of change of direction of a curve with respect to distance along the curve. At every point on a circle, the curvature is the reciprocal of the radius. For other curves (and straight lines can be regarded as circles of infinite radius), the curvature is the reciprocal of the radius of the circle that most closely conforms to the curve at the given point’.

11 Golden Gate Bridge. Most suspension bridge cables follow a parabolic, not a catenary curve, due to the weight of the roadway being much greater than that of the cable. Wikipedia Image

Over a longer distance, all lines are parallel or meeting in infinity. The earthly spatial geometry has latitudes as the parallel lines but longitudes converge at poles. Latitude and longitude both at smaller scale are ‘straight’ otherwise curved. Such spatial geometry lines are implied, but their curvatures are real and experience-able. A line, Earth’s horizon is seemingly straight, but in reality a curvature. A plane travels between two points, in shortest and a straight path, but following the curvature of the earth’s surface, an implied line.

12 at Broadway and Cortlandt Streets in New York in 1883, shows a nation exploding with its first communications.

10 Puentedelabarra

A line is a connection, where the intrinsic transfer of energy makes it straight, but extrinsic or abutting energy deforms it to a curved line. All types of energy transfers are revealed in the direction. Lines and curves with substance get stressed due to their own weight, and yield to the gravity. Materials yield or resist tolerable deformation. Such visual flections also occur over short distances. Our eye visually bends a straight line, and so facade of the Parthenon required several calibrations. In reality the tops of the towers of a suspension bridge or transmission pylons are further apart than at the bottom, due to a curved surface of the earth.

15 Shadow of a straight line on curved surface Wikipedia Image by Sten Porse

There are many different forms of line. The transition from one to another medium reveals as an angular bent. Water-submerged section of a stick is a visual aberration of a line. Crystals are molecular level entities with the linear-angular structure. If the same are formed over a curved surface such as a liquid droplet, the crystals take the shape of the surface. Gravity has a tendency to distort the way crystals form. Outer space with nearly zero gravity allows creation of complex, three-dimensional proteins. Here the gravity and convective forces do not interfere in crystal formation. It is always advised to aim ‘higher’ to let the ‘bent’ trajectory reach the spot. So nature has both, the lines and curves, the former as intrinsic, and later as the extrinsic effects of forces.

5 SpiderCatenary

6 Manhattan Bridge in New York City with deck under construction from the towers outward

Curvatures, like the lines, also have a direction, as measured for the angle of the straight line formed by connecting any two points on the curvature. Such a presumed line could have horizontal, vertical or inclined angle, with reference to the earth. Curves that have a known or mechanical method of origin are Geometric, but if irregular or complex and cannot be defined using any equations, are Phantomastic.

7 Natural or real contours of Materials Arizona mountains

8 Angular or linear formation of Red rocks https pxhere.comenphoto552984

Curved lines come back to their point of origin to form a closed or determinate form (circle, ellipse). Closed curves have no beginning or end, but could be spiral, where the ends merge but in some other time or space. But, it could go to infinity to form an open or indeterminate entity, losing the essence of the curvature to a parabola, and eventually become a straight line.

17 Different types of coils

18 Dawn Eases Into Orbit Around The Dwarf Planet Ceres

Circles have easier sense of movement, but spirals give a sense of completeness, but without any restrain. Spirals are natural shapes in shells, snails, water-whirls, cyclone or tornado. Spirals are boundless and open, going to outward or inward eternity. Spirals arrive back, but bring in positional and temporal change. Spirals represent the notion of growth, evolution and often confusion. Spirals move in clockwise of anticlockwise directions, that perhaps the persistence of initiating and sustaining energy. A spiral as a curve represents time, metaphorically better then lines do. A spiral curve is not a closing circle, but turns around to arrive back at a different elevation (or position). Essences of spiral are the pull and push, and both are linear. Structurally a spiral is linear entity for compression-tension. So spiral, a curve, is a line.

19 City_Hall,_London,_Spiral_Staircase_-_1

20 Geological_time_spiral

Curves with a single stroke can have one bridging line passing over any two pints on it, but multi-strokes curves can have as many bridging lines. Single stroke curve, create forms open on a single side, with an area asset on one side of it. Multi-stroke curves, on the other hand, create alternating open side form area assets that alternate on either side of it.21 Optical,_Corrections_in_Architecture_95

Silhouette, outline, skyline, horizon, shadows or contour lines, are all edge lines of real or ephemeral entities. The silhouettes are accumulative projection of several objects. The outlines define extremity of an object, if strong, subdue the object by framing and limiting its extent. Skylines are the human formations, a unique horizon-impression of the urban scape. A horizon is an ephemeral line between the sky and terrain. Shadows follow the object but occluding the details of the object-body. Contour lines are curvilinear, unless of man-made mass like roads and trenches. Borders demarcate the domain differences in terms of social, political, beliefs, but usually reinforced by the terrain. Borders are linear dividers or closed ended protectorates (if, squared framed or full curved forms).

The Lines start and terminate to a point, whereas the Curvatures have uncertainty about their ends. Lines as edges of angular planes show cleaved faces (diamonds, crystals), but curves of a streamlined product have ‘continuity’.

A streamlined shape lowers the friction drag in the medium it moves, air or water. Drag is a force that slows down movement. Many animals, birds, and machines, such as aeroplanes, trains and submarines, have streamlined bodies to reduce friction drag’.

1 Open_area_at_the_Johnson_Wax_Building,_headquarters_of_the_S.C._Johnson_and_Son_Co.,_Racine,_Wisconsin

9 Oak Park Il Hills House

During the Great Depression of the 1930s America had new style of Art-Deco architecture (late), product and graphic design. The Streamline Moderne or Art Moderne, favoured the curvilinear edges, accompanied by horizontal lines (parallel to gravity rather then up against it). Industrial designers stripped the Art-Deco design ornaments to implement the aerodynamic design. Long ribbon windows and cylindrical forms were new vocabulary of the ultramodern. All consumer products such as clocks, radios, telephones, cars, furniture, and other white good appliances were redefined to fit in the new concept. But these were sought to be replaced with modern materials of the age, steel, concrete and glass, and these had angular traditions.

2 Toaster

3 Tatra_77A_dutch_licence_registration_AM-44-01_pic10

4 Dutchess of Hamilton, re-streamlined https www.flickr.comphotosbiscit19723558479803

This is the 24th article (in continuation of old series -new beginning) on ISSUES of DESIGN

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SPACES and PURPOSES

Post 683–by Gautam Shah

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Design for a Stage Set_ A Dungeon with High Vaults and a Staircase at Right.

A space is either real or abstract. The Real one is contoured in geometry and so well founded. The Abstract one is coalescence of many perceptions, or a fuzzy imagination, and so transient. Spaces have a natural affinity for location and environment. The location related factors are static like the spatial character, size, shape, ergonomic accommodations, and connections with the outside world. These are substantiated by structures, amenities, facilities, utilities, tools and enrichments. The environment endows many variations. As the environment is substantially directional, the orientation becomes a key determinant of the space lay. Other important factors are the energies affecting all things on earth. Gravity endows the stability.

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Spaces derive their purpose with the users’ concerns, like: sense of belonging, ownership, access, privacy, security and safety. A space for an individual, becomes functional, by the distance from edges, interpolation (of other spaces), connections and presence or absence of others (beings). A space, is relevant to an individual and groups, by the preferment of the core or verge. The core is intensely purposive to the ‘idea of space’, whereas the verge has many non-spatial connections and so motives are tempered.

36520624965_cfbfd6514b_zTo concern a space, one needs to possess it, by way of perceiving or occupying it. For both of these, one needs to possess it through a position in it. The possession of space is an indication that it is amenable to changes like size, shape nature. The position in a space makes it possible to explore a space consistently and differently. It reveals new potentials of the space. Possession and position are followed by the ‘next move’, the conditioning of the environment.

office-1094826_640Spaces are set of perceptions or experiences. Some are of real conditions, but many others are supplemented by the mind. Perceptions occur from positions in space and sequences of change between positions. Real positioning is framing in time and space, and the abstract one may have cause and effect (cause is partly responsible for the effect, and the effect is totally dependent on the cause). Space positions are taken for greater reach and cognition in space. Positioning is a biological as well as circumstantial conditioning. Spaces are places that reflect the necessity for gaining and maintaining a commandeering position. Positioning in space ultimately gets reflected in the cultural inclinations or biases. People prefer left or right preferences for turning, reading, sleeping or social interacting.

FMSC_MarketPlace_-_Hope_Again_Women_Ugandan_Necklace_(7029881575)

Spaces are occupied for two main purposes, for various actions, and to keep materials and means to conduct the same. Actions are closely connected to spatial features, such as the environmental facilitations, architectonic elements amenities and facilities, and to other people. Activities relate to our being a biological entity like the metabolism, safety, security, privacy, comfort, rest, communication, expression etc. Actions are either routine or unconventional but productive or satiating. Routine activities occur with predictable spatial features, but compulsions of space size and group behaviour dynamics force unconventional settings for the actions.

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Routine purposes of spaces are day to day affairs. These are fixed to spatial segments, time schedules, environmental conditions, and utilize the same amenities, facilities, utilities. Spaces used for routine purposes reveal little that is exciting or new, because there is no need or time for exploration. Such spaces are predictable but very productive. The location related attachments are maintained, because these offer some flexibility for the spread of activities. Such segments due to their consistency and permanency are marked or named architectural units (bathing area, hay chopping area, etc.).

Kyoto Houses 353035587_cd41ec24df_z

Unconventional purposes of space emerge due to the compulsory and explorative shifting of activities. Such shifts occur only occasionally, because space-efficiency occurs when wait for the right occasion or search for the right location is minimal. Unusual purposes of space are realized first within the same space segment and when scheduled in the same time section or sequentially. In single room dwellings, tents and non-formal work areas the schedules and space requirements are well matched. But when one or both come under stress, unconventional means are sought or results delivered. Inconvenience of non-functional spatial or environmental features may be ignored, if group behaviour dynamics demand it.

geograph-4053627-by-Ben-BrooksbankActions occur at places from where some degree of command can be continued over a larger domain. These places are geometrically centric and environmentally favourable. Places of actions have strong cultural association, like public versus private, allowable versus sanctimonious spaces, or orientation taboos of directions.

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Casual repositioning and deferments of activities are required to relieve the tedium, and for experimentation. Activities due to their scale, required amenities, unfavourable weather or group dynamics require different space spread. Such activities need spatial shifting or time switching, or both.

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Customs and taboos result from the local perceptions and experiences, and so same activity could have different time and space setting (ethnic variations) across societies. This is apparent in satiating work like craft, than productive jobs.

Ilorin_women_potters_making_Isasun_pots_with_clay

Spaces derive their purpose with the postural flexibility (capacity to gain and leave). The number of sub-processes, which can be handled without shifting, depend on the physical reach. The dependence on tools, equipments, structures, amenities, facilities though enhance the spatial purposiveness, do restrict the variations a space can offer. The expectations for the next lot of work, preempt the purposes a space offers

Stone_carver_at_Sanoor

To an outsider, the purposes spaces serve seems intermingled or chaotic, but real users know the order of sequencing. The processes occur in lots or streamlined movement. Spaces with streamlined purposes reflect the high efficiency through optimized postural changes, minimal location shifting, coordinated use of amenities.

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