After treatment the marble was cleaned and treated with a protective wax. After careful reconstruction of the damage done by fitting knobs the piece was french polished and waxed. After Careful re-gluing and doweling of the ring, some minor veneer repairs the piece was french polished and waxed. Victorian Writing table This late Victorian Writing table had suffered badly from watermarking. After French polishing the colour of the timber can be fully appreciated. After fitting the replacement feet and some minor veneer repairs the piece was cleaned and waxed. Victorian Windsor Chair A super ash elm and yew windsor chair, apart from the structural damage all it needed was a clean and wax polish. Edwardian Jardiniere This jardiniere, was in a pretty bad way, after repairs and removal of the de-natured polish, the the colour shows through.

History of glass

Best Artists of All Time: Painting Composition and Design Sometimes called ” disegno ” – a term derived from Renaissance art which translates as both design and drawing, thus including the artist’s idea of what he wants to create as well as its execution – painting design concerns the formal organization of various elements into a coherent whole. These formal elements include:

Painting Interpretation. In addition to creating a visual object, an artist also aims to infuse it with a degree of intellectual content, in the form of symbolism, a moral or social message, or .

Known examples include the following figurines: All Paperweight marbles are very rare. The base glass is typically clear, though colored glass examples occur, yet only extremely rarely. These are harder to find than regular paperweight marbles and in fact are among the most valuable of all hand made marbles. Millefiori Paperweight Marble SLAGS Though slags are traditionally thought of as mostly machine made types, most of the earliest “transitional” marbles, that is to say those made partially by hand and partially by machine, as well as some hand made marbles, are slag-types.

Hand Made Slags Hand made slags can either be those drawn off a cane two pontil examples or formed by the single gather method single pontil examples. The latter should not be confused with Transitional Slags, which also have single pontils. Most hand made Slags with two pontils are composed of black or purple glass mixed with white. Single pontil hand made Slags differ from most other slag-type marbles. First, they employ different colors, not the dark colors often found in early Slags but lighter ones, with green being most prevalent.

These base colors are more translucent than transparent. Furthermore, rather than having white as the secondary color, they usually contain yellow swirls or rarely another color, such as purple.

There Was a Door

History of Technology Heroes and Villains – A little light reading Here you will find a brief history of technology. Initially inspired by the development of batteries, it covers technology in general and includes some interesting little known, or long forgotten, facts as well as a few myths about the development of technology, the science behind it, the context in which it occurred and the deeds of the many personalities, eccentrics and charlatans involved.

You may find the Search Engine , the Technology Timeline or the Hall of Fame quicker if you are looking for something or somebody in particular. Scroll down and see what treasures you can discover.

GLASS HAND MADE MARBLES. Hand made glass marbles were invented in Lauscha, Germany, in the late s. They were produced until the early part of the twentieth century, when World War I and the invention of marble producing machinery in America effectively ended the hand made marble industry.

Colorless is preferred over the term “clear” or “white” glass since the former term refers more accurately to the transparency of the glass not its color, i. Colorless glass was a goal of glass manufacturers for centuries and was difficult to produce because it required the use of virtually impurity-free materials. Venetian glass makers produced their crystallo as early as the 15th century and glass makers in 18th century England made what was known as “flint” glass from virtually pure quartz rock calcined flint which was simply called “flint” Hunter Improved chemistry and glass making methods of the late 19th and early 20th century allowed for process efficiencies that made colorless glass easier and much cheaper to produce with the use of various additives in the glass mixture.

The term flint glass was and still is used somewhat erroneously by glassmakers to describe colorless glass that is made with low iron sand. It is, however, not true flint glass. Colorless glass was also called “crown” by early glassmakers Hunter Colorless glass is not always, or even usually, absolutely colorless. It will usually have very faint tints of pink or “amethystine” faintly visible in the base of the bottle to the left , amber or “straw”, grayish green, grayish blue, or grey.

These faint colors are viewed easiest when looking through the thickest portion of the bottle, i. Colorless glass is usually attained by using the purest sand source possible and by adding “decolorizing agents” to the glass batch to offset the residual iron impurities Dillon Common decolorizing agents were manganese dioxide, selenium dioxide usually in conjunction with cobalt oxide , antimony and arsenious arsenic oxide which is also used as a stabilizer of selenium in decolorizing glass – or some combination of these compounds Trowbridge ; New York Herald ; Scholes ; Tooley ; Lockhart a.

Glassblowing

After treatment the marble was cleaned and treated with a protective wax. After careful reconstruction of the damage done by fitting knobs the piece was french polished and waxed. After Careful re-gluing and doweling of the ring, some minor veneer repairs the piece was french polished and waxed. Victorian Writing table This late Victorian Writing table had suffered badly from watermarking. After French polishing the colour of the timber can be fully appreciated.

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Antique Christmas Tree Ornament “Puppenaugen” doll eyes Marble scissors allowed the marble maker to cut portions of a multicolored, threaded glass rod which was heated then twisted as the glass became molten. Shearing the glass rod left telltale cut-off marks, or “pontils,” on either pole of the marble. Depending on the amount of time and effort invested in the production of the marble, as well as the skill and dedication of the artist, these pontils were often melted, ground, or even left as is.

There is research to suggest that the earlier marbles have more polished and ground pontils, and that less care was given to this as time passed due to increased production and a concomitant decrease in the amount of time that could be given to the creation of an individual marble. Schmidt engraving of the original glass house at Lauscha, Germany Note workmen drawing out glass cane.

Q: Why do heavy objects bend space and what is it they are bending?

Roman glass Romans learned to manufacture glass later than Asians. Glass objects have been recovered across the Roman Empire [22] in domestic, funerary [23] and industrial contexts. Roman glass production developed from Hellenistic technical traditions, initially concentrating on the production of intensely colored cast glass vessels. Production of raw glass was undertaken in geographically separate locations to the working of glass into finished vessels, [25] [26] and by the end of the 1st century AD large scale manufacturing, primarily in Alexandria, [27] resulted in the establishment of glass as a commonly available material in the Roman world.

Heroes and Villains – A little light reading. Here you will find a brief history of technology. Initially inspired by the development of batteries, it covers technology in general and includes some interesting little known, or long forgotten, facts as well as a few myths about the development of technology, the science behind it, the context in which it occurred and the deeds of the many.

Piedmon from Digimon Adventure tears through several walls when hunting down the Digidestined through his palace. Likely at least some of them is likely because it’s a quicker path. But in the end, when chasing TK and Kari, the only two he hasn’t captured, he comes across the door to the outside were they’d be trapped. Instead of opening the door, he decides to blow it up to make a dramatic entrance. Large Ham that he is, he lampshades this: I must stop this, it costs me a fortune in new doors!

Also used in Digimon Adventure 02 , when Greymon and Angemon fight a trio of digimon at Versailles Palace in France, who smash through a window to take the fight outside, causing TK’s grandpa to cry “Hey, use the door next time! They lock him in a room with an impenetrable door.

Short Reviews

February 13, at 8: Physicist, Ok, I would like to make a 2d space , 1d time, software model of a 2d disk earth as in the Planiverse, the technical and logically without contradiction, sequel to Flatland orbiting the sun, with metrics, from GE explaining the accelerations. Be nice if a dip or bump of parabolic shape is apparent, if i slice the timeline from the side, where Time is like X on a graph, and we see Y, a projection of some motion.

With 3d being all of spacetime, time is frozen and we are examining a static 3d model. If I turn on animation, we see moving orbits from the top, orthographic view. An orbit of disk planet, will be smooth spiral spring i could 3d print and hold and pet and adore.

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Korean 83, Imported Total admissions: They are listed in the order of their release. Feathers in the Wind Sometimes small-scale, informal projects can liberate a director. Without the pressure and weighty expectations involved in producing a major work, inspiration flows freely and the result is an even more accomplished piece of art. This may have been what happened with Git by Song Il-gon, the director of Flower Island , Spider Forest , and various award-winning short films including The Picnic Git was originally commissioned as a minute segment of the digital omnibus film 1.

Alas, the festival’s expectations were confounded, first in that only Lee Young-jae’s work really engaged environmental issues in a direct way the other two were merely set in rural areas , and second by the fact that Song went out and shot a minute film. As an omnibus work, 1. But if Song betrayed the spirit of the omnibus project, he remained true to the needs of his film.

3-D Printing Breaks the Glass Barrier

First, you might like this article: Then, inevitably, the girl starts to get upset, frustrated, confused, etc. My goal is to maintain the stage before exclusivity and relationship happens. I, right now, am not looking for a relationship. While a girl could get me to put in more effort by withdrawing a bit, I am ultimately not looking for a relationship and my effort is only going to go so far.

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Mold-blowing was an alternative glassblowing method that came after the invention of free-blowing, during the first part of the second quarter of the 1st century AD. A glob of molten glass is placed on the end of the blowpipe, and is then inflated into a wooden or metal carved mold.

The thermoluminescence technique is the only physical means of determining the absolute age of pottery presently available. It is an absolute dating method, and does not depend on comparison with similar objects as does obsidian hydration dating, for example. Most mineral materials, including the constituents of pottery, have the property of thermoluminescence TL , where part of the energy from radioactive decay in and around the mineral is stored in the form of trapped electrons and later released as light upon strong heating as the electrons are detrapped and combine with lattice ions.

By comparing this light output with that produced by known doses of radiation, the amount of radiation absorbed by the material may be found. When pottery is fired, it loses all its previously acquired TL, and on cooling the TL begins again to build up. Thus, when one measures dose in pottery, it is the dose accumulated since it was fired, unless there was a subsequent reheating. If the radioactivity of the pottery itself, and its surroundings, is measured, the dose rate, or annual increment of dose, may be computed.

A leaflet from Daybreak describing the TL technique in more detail and giving a bibliography will be provided to interested persons. The phenomenon of thermoluminescence was first described by the English chemist Robert Boyle in It was employed in the ‘s as a method for radiation dose measurement, and soon was proposed for archaeological dating.

By the mid ‘s, its validity as an absolute dating technique was established by workers at Oxford and Birmingham in England, Riso in Denmark, and at the University of Pennsylvania in the U. While not so accurate as radiocarbon dating, which cannot date pottery except from soot deposits on cooking pots , TL has found considerable usefulness in the authenticity of ceramic art objects where high precision is not necessary.

Since the university laboratories involved with TL are research facilities, they generally will not accept art objects for authentication on a routine basis. The TL laboratory at Daybreak was established in to make TL available to the art community in general.

Antique Glass Bottles – BASIC DATE CODES EXPLAINED

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