Misplaced Pages

#756243

55-504: Islampur (City of Islam) may refer to: Bangladesh [ edit ] Islampur Upazila , a subdistrict of Jamalpur, Bangladesh Islampur, a Union Parishad of Kamalganj Upazila , Moulvibazar District, Bangladesh Islampur, Jagannathpur , a village in Syedpur-Shaharpara Union Parishad, Jagannathpur Upazila, Sunamganj District Islampur is a place located in

110-400: A Thana in 1914, was turned into an upazila in 1983. Islampur Upazila is divided into Islampur Municipality and 12 union parishads : Belghacha, Char Gualini, Char Putimari, Chinaduli, Gaibandha, Gualerchar, Islampur, Kulkandi, Noarpara, Palabandha, Partharshi, and Shapdari. The union parishads are subdivided into 58 mauzas and 130 villages. Major educational institutes in the upazila include

165-510: A dark purple hue. This has resulted in violet and purple hues also being associated with the term "indigo" since that time. Because of the Abney effect , pinpointing indigo to a specific hue value in the HSV color wheel is elusive, as a higher HSV saturation value shifts the hue towards blue. However, on the new CIECAM16 standard , the hues values around 290° may be thought of as indigo, depending on

220-402: A list of colors for the X Window Operating System. The color identified as "indigo" was not the color indigo (as generally understood at the time), but was actually a dark purple hue; the programmers assigned it the hex code #4B0082   . This collection of color names was somewhat arbitrary: Thomas used a box of 72 Crayola crayons as a standard, whereas Ravelling used color swabs from

275-416: A prism to produce a rainbow-like band of colors on the wall. In describing this optical spectrum , Newton acknowledged that the spectrum had a continuum of colors, but named seven: "The originall or primary colours are Red, yellow, Green, Blew, & a violet purple; together with Orang, Indico, & an indefinite varietie of intermediate gradations." He linked the seven prismatic colors to the seven notes of

330-585: A region on the color wheel , and can include various shades of blue, ultramarine , and green-blue. Since the web era, the term has also been used for various purple and violet hues identified as "indigo", based on use of the term "indigo" in HTML web page specifications. The word "indigo" comes from the Latin word indicum , meaning "Indian", as the naturally based dye was originally exported to Europe from India . The Early Modern English word indigo referred to

385-472: A spectral color between blue and violet. However, the article states that Wilhelm von Bezold, in his treatise on color, disagreed with Newton's use of the term, on the basis that the pigment indigo was a darker hue than the spectral color; and furthermore, Professor Ogden Rood points out that indigo pigment corresponds to the cyan-blue region of the spectrum, lying between blue and green, although darker in hue. Rood considers that artificial ultramarine pigment

440-503: A town in Uttar Dinajpur district, West Bengal, India Islampur subdivision in Uttar Dinajpur district, West Bengal, India Islampur, Uttar Dinajpur (community development block) , Uttar Dinajpur district, West Bengal, India Islampur, Uttar Dinajpur (Vidhan Sabha constituency) , Uttar Dinajpur district, West Bengal, India See also [ edit ] Islamabad (disambiguation) [REDACTED] Topics referred to by

495-470: A tub and soaked it overnight, and the next day we foamed it up by beating it with a gourd. We let it stand overnight again, and the next day rubbed tallow on our hands to kill the foam. Afterwards, we poured the water off, and the sediment left in the bottom we would pour into a pitcher or crock to let it get dry, and then we would put it into a poke made of cloth (i.e. sack made of coarse cloth) and then when we wanted any of it to dye [there]with, we would take

550-421: A western major scale , as shown in his color wheel, with orange and indigo as the semitones . Having decided upon seven colors, he asked a friend to repeatedly divide up the spectrum that was projected from the prism onto the wall: I desired a friend to draw with a pencil lines cross the image, or pillar of colours, where every one of the seven aforenamed colours was most full and brisk, and also where he judged

605-437: Is a stub . You can help Misplaced Pages by expanding it . Indigo This is an accepted version of this page Indigo is a term used for a number of hues in the region of blue . The word comes from the ancient dye of the same name . The term "indigo" can refer to the color of the dye, various colors of fabric dyed with indigo dye, a spectral color, one of the seven colors of the rainbow as described by Newton , or

SECTION 10

#1732773307757

660-442: Is also known as "deep indigo". The color box on the right displays the web color indigo, the color indigo as it would be reproduced by artists' paints as opposed to the brighter indigo above (electric indigo) that is possible to reproduce on a computer screen. Its hue is closer to violet than to indigo dye for which the color is named. Pigment indigo can be obtained by mixing 55% pigment cyan with about 45% pigment magenta . Compare

715-518: Is closer to the point of the spectrum described as "indigo", and proposed renaming that spectral point as "ultramarine". The article goes on to state that comparison of the pigments, both dry and wet, with Maxwell's discs and with the spectrum, that indigo is almost identical to Prussian blue , stating that it "certainly does not lie on the violet side of 'blue.'" When scraped, a lump of indigo pigment appears more violet, and if powdered or dissolved, becomes greenish. Several modern sources place indigo in

770-406: Is composed of 25.1% red , 0% green and 100% blue . Whereas in a CMYK color space, it is composed of 74.9% cyan , 100% magenta , 0% yellow and 0% black . It has a hue angle of 255.1 degrees, a saturation of 100% and a lightness of 50%. Indigo(color wheel) could be obtained by blending violet with blue . "Electric indigo" is brighter than the pigment indigo reproduced above. When plotted on

825-404: Is customary to list indigo as a color lying between blue and violet, but it has never seemed to me that indigo is worth the dignity of being considered a separate color. To my eyes, it seems merely deep blue." In 1821, Abraham Werner published Werner's Nomenclature of Colours , where indigo, called indigo blue , is classified as a blue hue, and not listed among the violet hues. He writes that

880-473: Is different from Wikidata All article disambiguation pages All disambiguation pages Islampur Upazila Islampur is located at 25°05′00″N 89°47′30″E  /  25.0833°N 89.7917°E  / 25.0833; 89.7917 . It lies between the Brahmaputra and Jamuna rivers. Islampur has 74,963 households and total area 353.31 km . Islampur was historically part of

935-421: Is equivalent to the web color indigo and approximates the color indigo that is usually reproduced in pigments and colored pencils. The color of indigo dye is a different color from either spectrum indigo or pigment indigo. This is the actual color of the dye. A vat full of this dye is a darker color, approximating the web color midnight blue . The color "electric indigo" is a bright and saturated color between

990-417: Is portrayed using hex code #184FA1   . The 2004 indigo crayon color is depicted by #5D76CB   , and the 2019 iridescent indigo is portrayed by #3C32CD   . Like many other colors ( orange , rose , and violet are the best-known), indigo gets its name from an object in the natural world—the plant named indigo once used for dyeing cloth (see also Indigo dye ). The color pigment indigo

1045-479: Is repeatedly boiled in an indigo dye bath-solution (boiled and left to dry, boiled and left to dry, etc.), the blue pigment becomes darker on the cloth. After dyeing, the cloth is hung in the open air to dry. A Native American woman described the process used by the Cherokee Indians when extracting the dye: We raised our indigo which we cut in the morning while the dew was still on it; then we put it in

1100-516: Is the color that is called añil in the Guía de coloraciones (Guide to colorations) by Rosa Gallego and Juan Carlos Sanz, a color dictionary published in 2005 that is widely popular in the Hispanophone realm. Marina Warner's novel Indigo (1992) is a retelling of Shakespeare's The Tempest and features the production of indigo dye by Sycorax. The French Army adopted dark blue indigo at

1155-518: The Better Call Saul episode " Hero ", Howard Hamlin mentions that his law firm Hamlin Hamlin & McGill trademarked a colour called "Hamlindigo" whilst confronting Jimmy McGill over trademark infringement in a billboard advertisement he produced for his own legal services. The spiritualist applications use electric indigo , because the color is positioned between blue and violet on

SECTION 20

#1732773307757

1210-500: The CIE chromaticity diagram , this color is at 435 nanometers, in the middle of the portion of the spectrum traditionally considered indigo, i.e., between 450 and 420 nanometers. This color is only an approximation of spectral indigo, since actual spectral colors are outside the gamut of the sRGB color system. At right is displayed the web color "blue-violet", a color intermediate in brightness between electric indigo and pigment indigo. It

1265-661: The Pakistan Army entered Islampur and killed 30 freedom fighters. It was liberated by the freedom fighters on 7 December. On 3 November 1983, the status of Islampur Thana was upgraded to upazila (sub-district) as part of the President of Bangladesh Hussain Muhammad Ershad 's decentralisation programme. The Islampur municipality was founded in 1998, and it was upgraded from C-class to B-class in 2011. The reputation of Islampur's copper and wrought metal industry

1320-431: The electromagnetic spectrum between 420 and 450 nanometers, which lies on the short-wave side of color wheel (RGB) blue , towards (spectral) violet. The correspondence of this definition with colors of actual indigo dyes, though, is disputed. Optical scientists Hardy and Perrin list indigo as between 445 and 464 nm wavelength, which occupies a spectrum segment from roughly the color wheel (RGB) blue extending to

1375-467: The electromagnetic spectrum . Later scientists have concluded that what Newton called "blue" was what is now called cyan or blue-green; and what Newton called "indigo" was what is now called blue. In the 1980s, programmers produced a somewhat arbitrary list of color names for the X Window computer operating system, resulting in the HTML and CSS specifications issued in the 1990s using the term "indigo" for

1430-513: The 1990s, this list which came with version X11 became the basis of the HTML and CSS color rendition used in websites and web design. This resulted in the name "Indigo" being associated with purple and violet hues in web page design and graphic design. Physics author John Spacey writes on the website Simplicable that the X11 programmers did not have any background in color theory, and that as these names are used by web designers and graphic designers,

1485-547: The American colonies. Isaac Newton introduced indigo as one of the seven base colors of his work. In the mid-1660s, when Newton bought a pair of prisms at a fair near Cambridge , the East India Company had begun importing indigo dye into England, supplanting the homegrown woad as source of blue dye. In a pivotal experiment in the history of optics , the young Newton shone a narrow beam of sunlight through

1540-593: The English period. In 1914, a thana was established in Islampur. Palbandha Union is one and a half miles away from the upazila headquarters. The tyrannical Nilkar Sahibs forced the cultivators to cultivate indigo in the 266 acres of land of this union and surrounding vast farmlands. This area had the most indigo cultivation in the entire region of Greater Mymensingh . Remains of indigo kilns and traces of indigo preparation tools still exist to this day. On 27 April 1971,

1595-602: The Nurul Huda Alim Madrasa was founded in Dengargarh, Islampur which was a leading institution facilitating the education of Islampuris. During the English period, a cutchery was built south of the Sadar road and west of the present Islampur Government College which was used for government purposes. This upazila is associated with the history of indigo cultivation and the atrocities of the indigo lords during

1650-588: The Patiladaha pargana . A Sufi saint by the name of Islam Shah was said to have spread Islam to this area, and the area was visited by the Mughal governor of Bengal Islam Khan Chishti in the 17th century. Eventually, a mouza by the name of Islampur was established here, and after that a bazaar known as Islampur Bazar. The dargahs of Shah Kamal in Durmut and Ita Pir are still preserved to this day. In 1831,

1705-458: The color he called indigo, we would normally call blue; his blue is then what we would name blue-green or cyan ." If this is true, Newton's seven spectral colors would have been: The human eye does not readily differentiate hues in the wavelengths between what are now called blue and violet. If this is where Newton meant indigo to lie, most individuals would have difficulty distinguishing indigo from its neighbors. According to Isaac Asimov , "It

Islampur - Misplaced Pages Continue

1760-531: The color is composed of " Berlin blue , a little black, and a small portion of apple green," and indicating it is the color of blue copper ore , with Berlin blue being described as the color of a blue jay 's wing, a hepatica flower, or a blue sapphire . According to an article, Definition of the Color Indigo published in Nature magazine in the late 1800s, Newton's use of the term "indigo" referred to

1815-416: The country. Islampur has four orphanages; Ashraful Uloom Madrasa Orphanage, Dariabad Shishu Sadan Orphanage, Sirajabad Farazipara Orphanage and Mohammadpur Womens Hefzkhana Orphanage. According to the 2011 Census of Bangladesh , Islampur Upazila had 74,963 households and a population of 298,429. 81,951 (27.46%) were under 10 years of age. Islampur had a literacy rate (age 7 and over) of 30.06%, compared to

1870-442: The dry indigo. In Sa Pa , Vietnam, the tropical Indigo ( Indigo tinctoria ) leaves are harvested and, while still fresh, placed inside a tub of room-temperature to lukewarm water where they are left to sit for 3 to 4 days and allowed to ferment, until the water turns green. Afterwards, crushed limestone ( pickling lime ) is added to the water, at which time the water with the leaves are vigorously agitated for 15 to 20 minutes, until

1925-467: The dye, not to the color (hue) itself, and indigo is not traditionally part of the basic color-naming system . The first known recorded use of indigo as a color name in English was in 1289. Isaac Newton regarded indigo as a color in the visible spectrum , as well as one of the seven colors of the rainbow : the color between blue and violet ; however, sources differ as to its actual position in

1980-704: The following:- 1. Mahalgiri Sarkar Para Islamia Dakhil Madrasah. 2. Saverchar V.S.A Darusunnah Dakhil Madrasah 3. Guthail Sinior Alim Madrasha 4. Al Hera Ideal Academy 5. Ghaibandha Shurujjhan High School 6. Shajeda Mahmud High School 7. Morakandi Nosimon Nesa Dakhil Madrasha 8.Ashraful Ulum Madrasah 9. Kulkandi shamsunnahar High School 10. Islampur Nekjahan Pilot Model High school 11. Islampur Gov. University College 12. Islampur JJKM Girls School and College 13. Protiva Kinder Garten School 14. Surjomukhi Bidapith School 15. Islampur M.A. Samad Parvez Mohila Degree College 16. Guthail High School and College This Mymensingh Division location article

2035-434: The long-wave side, towards azure . Other modern color scientists , such as Bohren and Clothiaux (2006), and J.W.G. Hunt (1980), divide the spectrum between violet and blue at about 450 nm, with no hue specifically named indigo. Towards the end of the 20th century, purple colors also became referred to as "indigo". In the 1980s, computer programmers Jim Gettys , Paul Ravelling, John C. Thomas and Jim Fulton produced

2090-461: The modern word indigo . In early Europe the main source was from the woad plant Isatis tinctoria , also known as pastel. For a long time, woad was the main source of blue dye in Europe. Woad was replaced by "true indigo", as trade routes opened up. Plant sources have now been largely replaced by synthetic dyes . Spanish explorers discovered an American species of indigo and began to cultivate

2145-466: The name indigo has since that time been strongly associated with purple or violet. Spacey writes, "As such, a few programmers accidentally repurposed a color name that was known to civilisations for thousands of years." The Crayola company released an indigo crayon in 1999, with the Crayola website using the hex code #4F49C6   to approximate the crayon color . The 2001 iron indigo crayon

2200-578: The national average of 51.8%, and a sex ratio of 1010 females per 1000 males. 38,568 (12.92%) lived in urban areas. According to the 2011 Census of Bangladesh , Islampur Upazila had 74,963 households and a population of 298,429, 12.9% of whom lived in urban areas. 12.2% of the population was under the age of 5. The literacy rate (age 7 and over) was 30.1%, compared to the national average of 51.8%. 1. Jamuna River Bank (Guthail Bazar) 2.kasharipara (Dariabad,Islampur) 3. Brahmaptra river side (Ambaria,Islampur) 4.Kamar Para 6.Model Mosque Islampur, formed as

2255-422: The now-defunct Sinclair Paints company, resulting in the color list for version X11 of the operating system containing fanciful color names such as "papaya whip", "blanched almond" and "peach puff". The database was also criticised for its many inconsistencies, such as "dark gray" being lighter than "gray", and for the color distribution being uneven, tending towards reds and greens at the expense of blues. In

Islampur - Misplaced Pages Continue

2310-669: The observer. Indigo dye is a blue color, obtained from several different types of plants. The indigo plant ( Indigofera tinctoria ) often called "true indigo" probably produces the best results, although several others are close in color: Japanese indigo (Polygonum tinctoria), Natal indigo ( Indigofera arrecta ), Guatemalan indigo ( Indigofera suffruticosa ), Chinese indigo ( Persicaria tinctoria ), and woad Isatis tinctoria . Indigofera tinctoria and related species were cultivated in East Asia , Egypt , India , Bangladesh and Peru in antiquity. The earliest direct evidence for

2365-593: The product in Guatemala . The English and French subsequently began to encourage indigo cultivation in their colonies in the West Indies . In North America, indigo was introduced by Eliza Lucas into colonial South Carolina, where it became the colony's second-most important cash crop (after rice). Before the Revolutionary War , indigo accounted for more than one-third of the value of exports from

2420-426: The same term This disambiguation page lists articles about distinct geographical locations with the same name. If an internal link led you here, you may wish to change the link to point directly to the intended article. Retrieved from " https://en.wikipedia.org/w/index.php?title=Islampur&oldid=1194817814 " Category : Place name disambiguation pages Hidden categories: Short description

2475-575: The southern district of Dhaka city. India [ edit ] Islampur, Nalanda , a town in Nalanda district, Bihar, India Uran Islampur , a city in Sangli district, Maharashtra, India Islampur (Maharashtra) (Vidhan Sabha constituency) , Sangli district, Maharashtra, India Islampur, Murshidabad , a census town in Murshidabad district, West Bengal, India Islampur, Uttar Dinajpur ,

2530-431: The subtractive colors to the additive colors in the two primary color charts in the article on primary colors to see the distinction between electric colors as reproducible from light on a computer screen (additive colors) and the pigment colors reproducible with pigments (subtractive colors); the additive colors are significantly brighter because they are produced from light instead of pigment. Web color indigo represents

2585-594: The time of the French Revolution , as a replacement for the white uniforms previously worn by the Royal infantry regiments. In 1806, Napoleon decided to restore the white coats because of shortages of indigo dye imposed by the British continental blockade. However, the greater practicability of the blue color led to its retention, and indigo remained the dominant color of French military coats until 1914. In

2640-448: The traditional colors of the rainbow, the order of which is given by the mnemonics "Richard of York gave battle in vain" and Roy G. Biv . James Clerk Maxwell and Hermann von Helmholtz accepted indigo as an appropriate name for the color flanking violet in the spectrum. Later scientists concluded that Newton named the colors differently from current usage. According to Gary Waldman, "A careful reading of Newton's work indicates that

2695-462: The traditional indigo and violet. This is the brightest color indigo that can be approximated on a computer screen; it is a color located between the (primary) blue and the color violet of the RGB color wheel. The web color blue violet or deep indigo is a tone of indigo brighter than pigment indigo, but not as bright as electric indigo. Listed below are several indigo hues, some of which have included

2750-428: The truest confines of them to be, whilst I held the paper so, that the said image might fall within a certain compass marked on it. And this I did, partly because my own eyes are not very critical in distinguishing colours, partly because another, to whom I had not communicated my thoughts about this matter, could have nothing but his eyes to determine his fancy in making those marks. Indigo is therefore counted as one of

2805-593: The use of indigo dates to around 4000 BC and comes from Huaca Prieta , in contemporary Peru. Pliny the Elder mentions India as the source of the dye after which it was named. It was imported from there in small quantities via the Silk Road . The Ancient Greek term for the dye was Ἰνδικὸν φάρμακον ( indikon pharmakon , "Indian dye "), which, adopted to Latin as indicum (a second declension noun) or indico (oblique case) and via Portuguese , gave rise to

SECTION 50

#1732773307757

2860-435: The water turns blue. The blue pigment settles as sediment at the bottom of the tub. The sediment is scooped out and stored. When dyeing cloth, the pigment is then boiled in a vat of water; the cloth (usually made from yarns of hemp ) is inserted into the vat for absorbing the dye. After hanging out to dry, the boiling process is repeated as often as needed to produce a darker color. In a RGB color space , "Indigo(color wheel)"

2915-423: The way the color indigo was always reproduced in pigments, paints, or colored pencils in the 1950s. By the 1970s, because of the advent of psychedelic art , artists became accustomed to brighter pigments. Pigments called "bright indigo" or "bright blue-violet" (the pigment equivalent of the electric indigo reproduced in the section above) became available in artists' pigments and colored pencils. 'Tropical Indigo'

2970-577: The word "indigo", with the adoption of HTML color names in the World Wide Web era. Indigo dye is a greenish dark blue color, obtained from either the leaves of the tropical Indigo plant ( Indigofera ), or from woad ( Isatis tinctoria ), or the Chinese indigo ( Persicaria tinctoria ). Many societies make use of the Indigofera plant for producing different shades of blue. Cloth that

3025-570: Was spread across the country and abroad. The workers here were skilled in the preparation of various shapes and natures of bronze plates, bowls, glasses, cups, drinking bowls, surmadanis, atardanis, lamps, censers, khat-palanka khuras, pitchers, jugs, bronze bells, knife-sword butts, etc. There is a legend in this regard that even an ant could not climb over the edge of the glass for the sweet food in Islampuri smooth glass. Apart from this, Islampur's big eggplant and sugarcane molasses are famous all over

#756243