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December 10, 2018

Making A Boat Of Plastic Bottles

A plastic bottle is a bottle made out of plastic. Plastic bottles are usually used to store liquids such as water, soft drinks, motor oil, cooking oil, medicine, shampoo, milk, and ink. The size ranges from very small sample bottles to large carboys.

Plastic bottles were first used commercially in 1947, but remained relatively expensive until the early 1960s when high-density polyethylene was introduced.

They quickly became popular with both manufacturers and customers due to their lightweight nature and relatively low production costs compared with glass bottles. Except for wine and beer, the food industry has almost completely replaced glass with plastic bottles.

There is an ongoing concern as to the use of some plastics in consumer food packaging solutions. The environmental impact of the disposal of these products, as well as concerns regarding consumer safety, are still debated.

Plastic water bottles are regulated by the FDA. The FDA periodically samples bottled water and also inspects bottled water plants. Plastic water bottle plants hold a low priority for inspection due to a continuously good safety record.  

This Has To Be The Worst Place To Sit

Sitting is a position of human body that is supported by the buttocks or thighs where the torso is more or less upright.

The origins of the position are in dispute. Although many art pieces of Antiquity show individuals in various stages of sitting, it is thought that it did not become common practice until well into the 19th Century. Henri, Count of Chambord claimed to have invented sitting in 1834, but much like his alleged seven day reign as King of France, many challenge the veracity of the claim.

The most common way of sitting on the floor involves bending the knees. One can also sit with the legs unbent, using something solid as support for the back or leaning on one’s arms.

Sitting with bent legs can be done along two major lines; one with the legs mostly parallel and one where they cross each other. The parallel position is reminiscent of, and is sometimes used for, kneeling. The latter is a common pose for meditating.

One variation that is highly unusual is the ‘chicken wing’ style. One would have their legs outwards facing backwards instead of folding them in front of them-self.

Amazing Black And White Drawings

Drawing is a form of visual art that makes use of any number of drawing instruments to mark a 2D medium. Instruments that are used include graphite pencils, pen and ink, inked brushes, wax color pencils, crayons, charcoal, chalk, pastels, various kinds of erasers, markers, styluses, and various metals. An artist who practices or works in drawing may be called a draftsman or draughtsman.

A small amount of material is released onto a surface, leaving a visible mark. The most common support for drawing is paper, although other materials can be used, the materials are usually are: cardboard, plastic, leather, canvas, and board.

Temporary drawings may be made on a blackboard or whiteboard or indeed almost anything. The medium has been a popular and fundamental means of public expression throughout human history. It is one of the simplest and most efficient means of communicating visual ideas. The wide availability of drawing instruments makes drawing one of the most common artistic activities.

Drawing is one of the major forms of expression within the visual arts. It is generally concerned with the marking of lines and areas of tone onto paper, where the accurate representation of the visual world is expressed upon a plane surface. Traditional drawings were monochrome, or at least had little color, while modern colored-pencil drawings may approach or cross a boundary between drawing and painting. In Western terminology, drawing is distinct from painting, even though similar media often are employed in both tasks.

Dry media, normally associated with drawing, such as chalk, may be used in pastel paintings. Drawing may be done with a liquid medium, applied with brushes or pens. Similar supports likewise can serve both: painting generally involves the application of liquid paint onto prepared canvas or panels, but sometimes an underdrawing is drawn first on that same support.

This Has To Be The Largest 3D Painting In The World

Street painting, also known as pavement art, street art, and sidewalk art, is the form of art of rendering artistic designs on pavement such as streets, sidewalks, and town squares. Street painting can be made by using impermanent or semi-permanent materials such as chalk.

The origins of modern street painting can be traced back to Britain. Pavement artists were found all over the UK and by 1890 it was estimated that more than 500 artists were making a full-time living from pavement art in London alone.

The British term for pavement artist is “screever”. The term is derived from the writing style, often Copperplate that typically accompanied the works of pavement artists since the 1700s. The term screever is most commonly cited as Shakespearean slang dating from around 1500.

The works of screevers were usually accompanied by poems and proverbs, lessons on morality, and political commentary on the day’s events. They were described as “producing a topical, pictorial newspaper of current event.”

They appealed to both the working people, who (on the whole) could not read and write, but understood the visual images; and to the educated members of the middle-classes who appreciated the moral lessons and comments. It was important for a screever to catch the eye of the ‘well to do’ and in turn attract the pennies donated for their efforts.

Street painters, (also called or chalk artists) are names these performance artists are most commonly called in the United States are called I Madonnari in Italy, because they recreated images of the Madonna. In Germany they are called Strassenmaler.

Every Adrenaline Seeker Will Want Ride This Water Slide

A water slide (also referred to as flumes, water chutes, or hydroslides) is a type of slide designed for warm-weather or indoor recreational use at water parks. Water slides differ in their riding method and also their size. Some slides require riders to sit directly on the slide, or on a raft or tube designed to be used with the slide.

A typical water slide uses a pump system to pump water to the top which is then allowed to freely flow down its surface. The water reduces friction so sliders travel down the slide very quickly. Water slides run into a swimming pool (often called a plunge pool) or a long run-out chute.

A lifeguard is usually stationed at the top and the bottom of the slide, so that if a rider gets hurt they will be treated immediately.

As the name suggests, body slides feature no mat and require the person to sit directly on the surface of the slide. There are a variety of types of body slides including simple flumes, speed slides, bowls and AquaLoops.

Some slides are designed to be ridden with a tube which typically seats between 2 and 3 riders inline. Similar to a traditional body slide, these slides include many twists and turns and come in a variety of types including bowls, funnels and half-pipes.

Most Famous Paintings Recreated With LEGO Blocks

Lego’s are probably the most famous toys manufactured by The Lego Group, a privately held company based in Billund, Denmark. The company’s flagship product, Lego, consists of colorful interlocking plastic bricks and an accompanying array of gears, mini figures and many other parts. Lego bricks can be assembled and connected in many ways, to construct such objects as vehicles, buildings, and even working robots. Anything constructed can then be taken apart again, and the pieces used to make other objects.

Lego began manufacturing interlocking toy bricks in 1949. Since then a global Lego subculture has developed, supporting movies, games, competitions, and six themed amusement parks. As of 2013, around 560 billion Lego parts had been produced.

The Lego Group began in the workshop of Ole Kirk Christiansen, a carpenter from Billund, Denmark, who began making wooden toys in 1932. In 1934, his company came to be called “Lego”, from the Danish phrase leg godt, which means “play well”. It expanded to producing plastic toys in 1947. In 1949 Lego began producing, among other new products, an early version of the now famous interlocking bricks, calling them “Automatic Binding Bricks”.

These bricks were based in part on the KiddicraftSelf-Locking Bricks, which were patented in the United Kingdom in 1939 and then there released in 1947. Lego modified the design of the Kiddicraft brick after examining a sample given to it by the British supplier of aninjection-molding machine that the company had purchased.

A Hedge That Will Make Nerds Faint

A hedge or hedgerow is a line of closely spaced shrubs and tree species, planted and trained in order to form a barrier or to mark the boundary of an area. Hedges used to separate a road from adjoining fields or one field from another, and of sufficient age to incorporate larger trees, are known as hedgerows. It is also a simple form of topiary.

The development of hedges over the centuries is preserved in their structure. The first hedges enclosed land for cereal crops during the Neolithic Age. Some hedges date back from the Bronze and Iron Ages, when traditional patterns of landscape became established. Others were built during the medieval field rationalisations; more originated in the industrial boom of the 18th and 19th centuries, when heathsand uplands were enclosed.

Many hedgerows separating fields from lanes in the United Kingdom, Ireland and the Low Countries are estimated to have been in existence for more than seven hundred years, originating in the medieval period. The root word of ‘hedge’ is much older: it appears in the Old English language, in German (Hecke), and Dutch (haag) to mean ‘enclosure’, as in the name of the Dutch city The Hague, or more formally ‘s Gravenhage, meaning The Count’s hedge. Charles the Bald is recorded as complaining in 864, at a time when most official fortifications were constructed of wooden palisades, that some unauthorized men were constructing haies et fertés – tightly interwoven hedges of hawthorns.

Drawing On A Grain Of Sand

Sand is a naturally occurring granular material composed of finely divided rock and mineral particles. The composition of sand can be very versatile, depending on the local rock sources and conditions, but the most common constituent of sand in inland continental settings and non-tropical coastal settings is silica (silicon dioxide, or SiO2), usually in the form of quartz.

The second most common kind of sand is calcium carbonate, an example can be aragonite, which has mostly been created, over the past half billion years, by various forms of life, like coral and shellfish. It is, for example, the primary form of sand apparent in areas where reefs have dominated the ecosystem for millions of years like the Caribbean.

The study of individual grains can reveal much historical information as to the origin and kind of transport of the grain. Quartz sand that is recently weathered from granite or gneiss quartz crystals will be angular. It is called grus in geology or sharp sand in the building trade where it is preferred for concrete, and in gardening where it is used as a soil amendment to loosen clay soils. Sand that is transported long distances by water or wind will be rounded, with characteristic abrasion patterns on the grain surface. Desert sand is typically rounded.

People who collect sand as a hobby are known as arenophiles. Organisms that thrive in sandy environments are psammophiles.

One Of The Best Optical Illusions You Will See In Your Life

An optical illusion (but sometimes it is called a visual illusion) is characterized by visually perceived images that differ from objective reality.

The information gathered by the eye is processed in the brain to give a perception that does not tally with a physical measurement of the stimulus source. There are three main types: literal optical illusions that create images that are different from the objects that make them, physiological ones that are the effects on the eyes and brain of excessive stimulation of a specific type (the things that stimulate the brain are: brightness, color, size, position, tilt, movement), and cognitive illusions, the result of unconscious inferences.

Perceptual constancies are sources of illusions. Color constancy and brightness constancy are responsible for the fact that a familiar object will appear the same color regardless of the amount of light or color of light reflecting from it.

An illusion of color or contrast difference can be created when the luminosity or color of the area surrounding an unfamiliar object is changed. The contrast of the object will appear darker against a black field that reflects less light compared to a white field even though the object itself did not change in color. Similarly, the eye will compensate for color contrast depending on the color cast of the surrounding area.

This Is One Awesome Tree House

Tree houses also known as tree forts, are platforms or buildings constructed around, next to or among the trunk or branches of one or more mature trees while above ground level. Tree houses can be used for many things and some of them are: recreation, work space, habitation, observation or as temporary retreats.

Tree houses are built usually by people for leisure purposes, also for protection from wild animals. In some parts of the tropics, houses are either fastened to trees or elevated on stilts to keep the living quarters above the ground to protect occupants and stored food from scavenging animals.

The Korowai, a Papuan tribe in the southeast of Irian Jaya, live in tree houses, some nearly 40 m high, as protection against a tribe of neighboring head-hunters, the Citak.

Along with subterranean and ground level houses, tree houses are an option for building eco-friendly houses in remote forest areas, the reason why they are eco-friendly is because they do not require a clearing of a certain area of forest. The wildlife, climate and illumination on ground level in areas of dense close-canopy forest are not desirable to some people.

The tree house has been central to various environmental protest communities around the world, in a technique known as tree sitting. This method may be used in protests against proposed road building or old growth forestry operations. Tree houses are used as a method of defense from which it is difficult and costly to safely evict the protesters and begin work.

Julia Butterfly Hill is a particularly well known tree sitter who occupied a Californian Redwood for 738 days, saving the tree and others in the immediate area. Her accommodation consisted of two 3 m2  platforms 60 m above the ground.

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