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Round Sculpture

June 10th, 2010

Round sculpture that is surrounded on all sides, except the base, by space. It is also known as Free-standing sculpture, and is meant to be viewed from any angle.
According to the materials, round sculpture can be subdivided into the following kinds:

Stone carving
Stone carving is an ancient activity where pieces of rough natural stone are shaped by the controlled removal of stone. Owing to the permanence of the material, evidence can be found that even the earliest societies indulged in some form of stone work. Petroglyphs (also called rock engravings) are perhaps the earliest form: images created by removing part of a rock surface which remains in situ, by incising, pecking, carving, and abrading. Monumental sculpture covers large works, and architectural sculpture, which is attached to buildings. Hardstone carving is the carving for artistic purposes of semi-precious stones such as jade, agate, onyx, rock crystal, sard or carnelian, and a general term for an object made in this way. Engraved gems are small carved gems, including cameos, originally used as seal rings.

Bronze sculpture
Bronze is the most popular metal for cast metal sculptures; a cast bronze sculpture is often called simply a “bronze”. Common bronze alloys have the unusual and desirable property of expanding slightly just before they set, thus filling the finest details of a mold. Their strength and lack of brittleness (ductility) is an advantage when figures in action are to be created, especially when compared to various ceramic or stone materials (see marble sculpture for several examples).

Wood carving
Arnold Henry Savage Landor, Making sculptures in Tibet, 1905
Wood carving is a form of working wood by means of a cutting tool held in the hand (this may be a power tool), resulting in a wooden figure or figurine (this may be abstract in nature) or in the sculptural ornamentation of a wooden object.

Casting
Casting is a manufacturing process by which a liquid material is (usually) poured into a mold, which contains a hollow cavity of the desired shape, and then allowed to solidify. The solid casting is then ejected or broken out to complete the process. Casting may be used to form hot liquid metals or various materials that cold set after mixing of components (such as epoxies, concrete, plaster and clay). Casting is most often used for making complex shapes that would be otherwise difficult or uneconomical to make by other methods.

Casting is a 6,000-year-old process. The oldest surviving casting is a copper frog from 3200 BC. The casting process is subdivided into two distinct subgroups: expendable and non-expendable mold casting.

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Inflatable Buildings

May 14th, 2010

An inflatable building is an inflatable structure constructed using two layers of membrane connected together, typically using spars made from the same material. The cavity formed between the layers is pressurized with air producing a rigid structural element which allows large span structures to be achieved. The key difference between air-supported buildings and inflatable buildings is that air-supported buildings require airlocks at all the access points to prevent air being lost when doors are opened since the entire occupied space of the building is pressurized.

An inflatable building only requires pressurized air within the cavities of the walls and so does not require airlocks since the occupied interior of the building is at normal atmospheric pressure. Since a much lower volume of air is pressurized, inflatable buildings require less power for continuous operation.

The air contained within the walls of an inflatable building becomes a true structural part of the building. The membranes used in the construction of such buildings are typically less than 1mm thick, so the amount of membrane used compared to the volume of air contained within the walls is incredibly low (typically less than 0.5%). This makes inflatable buildings efficient in terms of the amount of raw materials required to construct them.

The small amount of material used in the construction of inflatable buildings makes them highly portable. When a building needs to be moved, the air can simply be allowed to escape enabling an entire building to be packed into a small volume compared to its inflated size. The building can then be transported easily to its new location and re-inflated.

Nowadays, inflatable structures and inflatable buildings are used in many ways including membrane roofs and covers, sails, buildings and pavilions, airships, furniture, airspace structures, boats, escape slides, security mattresses, swimming pools, coverings, games and castles, air bags and many other applications.

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Indoor Climbing

May 13th, 2010

Indoor Climbing is an increasingly popular form of rock climbing performed on artificial structures that attempt to mimic the experience of outdoor climbing  but in a more controlled environment.

The first indoor climbing walls tended to be made primarily of brick leaving little scope for interesting routes, as the steepness of the wall and variety of the hand holds were somewhat limited. More recently, indoor climbing terrain is constructed of plywood over a metal frame, spray-coated with texture to simulate a rock face.

The most common construction method involves screwing resin hand holds on to wooden boards. The boards can be of varying height & steepness (from completely horizontal ‘roofs’ to not even vertical ’slabs’) and have a large variety of holds (such as very small ‘crimps,’ slanted-surfaced ’slopers,’ and ‘jugs,’ which are often large and easy to hold) attached. This variety, coupled with the ability for the climbs to be changed by attaching the holds onto the wall differently, has resulted in indoor climbing becoming a very successful sport.

The proliferation of indoor climbing gyms has increased the accessibility, and thus the popularity, of the sport of climbing. Since environmental conditions (ranging from the structural integrity of the climbing surfaces, to equipment wear, to proper use of equipment) can be more controlled in such a setting, indoor climbing is perhaps a safer and more friendly introduction to the sport. In fact, birthday parties and youth teams are common at many rock gyms.

This sense of security has a downside- a new gym climber may head to the cliffs and find they do not have all of the necessary skills for climbing in a setting without preplaced anchors, and explicit route finding.

Indoor rock climbing is also continually described as an alternative and secondary option to outdoor climbing. Although this may be true for a range of climbers, many climbers see outdoor climbing as an excursion from the gym, and much less usual than indoor climbing. For this reason, indoor climbing should not be classified as a secondary sport, as it is a competitive sport, governed by many local, national and international organizations throughout the world, and therefore quite different from outdoor climbing.

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Trash Cans

May 9th, 2010

Can you imagine the world without trash cans? Trash cans are not a bright things, but without them, the world may not be bright too. It is disgusting that dirt and garbage scattered all over the streets, parks, homes, and everywhere.

If we do not want to live in such a place, and want to make our houses, work offices, streets, cities, counties clean and tidy, collecting garbage and deal with them is the right way. So trash cans are indispensable in our lives.

Trash cans are endowed with many different names, but in the end they are used for mainly one purpose, a place for us to put garbage. Trash cans are generally called as waste receptacles, garbage cans, garbage bins, trash containers, rubbish bins, waste containers and the list goes on. There are two main categories of commercial trash cans; one kind of trash cans are used for garbage and the other kind of trash cans are used for recycling.

Trash cans come in various kinds of different materials such as plastic trash cans, stainless steel trash cans, cement trash cans and chrome trash cans. Trash cans are available in various colors, designs, styles, and sizes. Although, there are numerous items for this product, trash cans are all basically the same. And different trash cans with different material may have different features,

If you want affordable and durable trash cans, plastic trash cans are perfect. As plastic trash cans are usually light, which is quite different from wooden or metal cans, plastic trash cans may be brought to any outdoor activities such as picnics, beach, or in the backyard for your barbecue party. Besides, plastic trash cans are weatherproof. Trash cans can withstand any kind of weather, whether on a sunny day or even on a heavily rainy day. Plastic trashcans are not a hassle to bring along, as plastic trash cans are as lightweight and durable.

With various sizes and shapes, trash cans can also be used on kinds of occasions. The fields trash can can be used rang from bedroom, kitchen, and backyard to garage, offices, bathroom and others. There is no need to worry about the space it will use up. Plastic trash cans can be easily put under the table or be put at the corner of the house. And when you want to push out the garbage, you can simply take them out and clean the trash cans easily with water and a little soap.

Plastic trash cans are a perfect combination of functionality and decoration. Painted with different pictures and colors, designed with different shapes and sizes, plastic trash cans can cater to your different requirement, and you can choose trash cans according to the place they would locate, the person they would provide service for, and some other criterion.

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Kids toys

May 4th, 2010

As a child, there is no one who does not like kids toys. I think you must still cherish your colorful memory of your childhood with various kids toys. As kids toys are mentioned here, we refer to the small and elaborate toys, but not huge entertainment equipment as bouncers and castles.

Boys may cherish their car kids toys, plane kids toys, ball kids toys and so on. And when their pals get together, they would take out their precious kids toys and show off to them. Girls may like dolls kids toys. When they get together, they may play the games of roles plays. Girls may play the roles of mothers, while the dolls kids toys be the little babies. Besides, there are also thousands of other kids toys, as ball fold game kids toys, flower thread kids toys, chained hoop kids toys, gears combined model kids toys. These kids toys are always small pieces, and children can make out hundreds of different things by way of combining these kids toys pieces by themselves. It is a wonderful way to promote their ability in hand making and flying their imagination.

Today the kids’ toys have gone through a long way and they are much more fun. Technological and manufacturing advances have made amazing progress in kids’ toys. Facing to so many excellent kids toys, you may be bothered by making a decision what kinds of kids toys you should give for your children. Here are several tips to help you buy suitable kids toys for your sweet hearts.

Firstly, searching the kids toys which are suitable to your children’s age. The most important point in kids toys is their safety. If you kids are still toddlers, you had better avoid to buying the kids toys, which have sharp angles or keen edges.

Secondly, considering what your children really want and need. Remember that what you want your children to play with is not the same as what your children really want to play. There are huge differences between the two. Besides, what the children want sometimes may also be deferent from what they need. For example, your kids may need to promote their hand making abilities, while they may want the completed sets of kids toys. When you buy your children kids toys, you had better take them together and consider both the functional and entertainment features.

Thirdly, do not forget some other ways to get kids toys. You may be used to buying kids toys in the local toy stores. But the kinds there must be limited. And today you can get various of kids toys in online kids toys shops.

Fourthly, when you children are playing kids toys, you should keep an eye on them. As most children like tasting things they are playing, you should present them swallowing the kids toys.

Anyhow, kids toys are indispensable to children’s growing. And without kids toys, there may be less happiness in their childhood.

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Inflatable Castle

April 28th, 2010

You must have enjoyed your childhood with various stories, romantic or horrific, about princes, princesses or about ghosts and witches. No matter what they are, it seemed that castles are an indispensable item in these stories. Castles, as the beautiful dream of every child, come true with the creation of inflatable castles.

Inflatable castles are designed according to children’s personalities. They are child activity centers equipped with a set of recreation, sports, fun and fitness combined through scientific three-dimensional ways. It is a new, highly comprehensive children’s paradise. The design of it is directed by the theme of developing children’s independent personality, and exercising, by way of playing.

Inflatable castles are superior in the aspects of no site constraints, either indoor, outdoor, or irregular sites, simple management, non-power equipment, and easy maintenance.

Inflatable castles have the features of randomness, non-dynamic, interactive and security.  Randomness refers that there is no site restriction to the inflatable castle. The places no matter it is indoor, outdoor, or irregular sites, are able to install the inflatable castles; non-dynamic system means that inflatable castles can operate without any power plant,  that not only saves operating costs, but also ensures the safety of the players. That is why inflatable castles are popular to buyers.

Inflatable castles can be installed in many occasions such as: schools, kindergartens, gardens, villas, parks, residential property, playgrounds, Children’s Palace, shopping malls, supermarkets and other types of indoor and outdoor play areas for kid entertainment.

Recently, there is a newly designed inflatable castle. It contains not only a variety of previous inflatable castle game projects (such as: Leap the bed, ocean ball pool, air pulley, single-plank bridge, iron chain bridge, cockpit, spiral slide, slip tube, rainbow ladder, rock climbing, the outer UFO, carbines, cannons, automatic guns, cartoons etc.), but also concludes many new projects as air cars, volcanic eruptions, animal-shape spray balls. All the activities are both safe and full of excitement and challenge.

Playing in the inflatable castles is full of fun. As inflatable castle is large and consists many rooms, big or small, so it is very mysterious, also very magic, just as interesting treasure hunt, adventurous but amazing after all.

Do not envy the princesses and their magical castles any more, do not sigh that you cannot get into the story to enjoy the lovely castles while reading. Now you can also get your own castle and play your own romantic stories! All are because of inflatable castles!

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The Importance of Outdoor Fitness Equipment

April 24th, 2010

A fitness trail (also known as a parcourse) consists of a path or course equipped with obstacles or stations distributed along its length for exercising the human body to promote good health. The course is designed to promote physical fitness training in the style attributed to Georges Hébert. In general, fitness trails can be natural or man made, located in areas such as forest, transportation rights-of-way, parks, or urban settings. Equipment exists to provide specific forms of physiological exercise, and can consist of natural features including climbable rocks, trees, and river embankments, or manufactured products (stepping posts, chin-up and climbing bars) designed to provide similar physical challenges. The degree of difficulty of a course is determined by terrain slope, trail surface (dirt, grass, gravel, etc), obstacle height (walls) or length (crawls) and other features. Urban par courses tend to be flat, to permit participation by the elderly, and to accommodate cyclists, runners, skaters and walking. The new concept of an outdoor gym, containing traditional gym equipment specifically designed for outdoor use, is also considered to be a development of the par course.

If you are thinking about doing some fitness training but don’t want to waste money and space in your home with big equipment purchases, you can look for ways to exercise around your home and outside. By finding items that you already own or by using the great outdoors, you can be more “green” when you’re exercising too.

Today, when you start looking for gym fitness equipment you will certainly be staggered by the range of items that you will need to choose from.

In fact, for the uninitiated the whole process of deciding upon the best gym fitness equipment can prove to be quite daunting.

Whenever you enter an exercise facility, you will find commercial fitness equipment being part of the fixtures and even people planning on maintaining a home gym too are finding commercial fitness equipment to be a useful addition.

When it comes to picking items for doing cardio workouts you will find a lot of choices confronting you.

By reading a fitness equipment review these same people will be able to learn about essential features that can make a significant difference to how much you are able to get out of your item of fitness equipment.

It is little details that, when you become aware of them, will make the difference between useful fitness equipment and one that can end up being a waste of good money.

As a side benefit, gym fitness equipment such as exercise bikes also helps you to achieve weight loss as well as burn off unwanted fat from your body.

You won’t need a second invitation to try out another item of fitness equipment which of course, is the treadmill.

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Jungle Gym

April 20th, 2010

The jungle gym, monkey bars, or climbing frame, is a piece of playground equipment made of many pieces of material, such as metal pipe or rope, on which children can climb, hang, or sit. The monkey bar designation refers to the rambunctious, climbing play of monkeys.

The first jungle gym was invented in 1920 and patented by lawyer Sebastian Hinton in Chicago. It was sold under the trademarked name Junglegym. The term “monkey bars”, was first documented in 1955, though Hinton’s initial patent of 1920 appeals to the “monkey instinct” in claiming the benefits of climbing as exercise and play for children, and his improvement patents later that year refer to monkeys shaking the bars of a cage, children swinging on a “monkey runway”, and the game of “monkey tag”. Hinton’s chief goal, however, was to enable children to achieve an intuitive understanding of 3-dimensional space through a game in which numbers for the x, y, and z axes were called out and each child tried to be the first to grasp the indicated junction. Thus the abstraction of Cartesian coordinates could be grasped as a name of a tangible point in space.

Hinton’s second prototype jungle gym is still standing at Crow Island School.

Large, metal, cubic-shaped jungle gyms were once common on playgrounds, but sometimes led to injuries when children hit their heads on the bars or swung on them improperly, causing bruises, sprains, and fractures. Because of that, rope varieties, along with smaller metal units, are becoming more common.

Jungle gym shapes are also becoming more varied. Wooden platforms with ladders and railings around the outer edges are often seen in schools, parks, and backyards, along with dome, rocket-shaped, and other configurations.

One common type of jungle gym is a row of overhead bars, high enough for a child to hang from them but not so high as to cause serious injury in a fall. A child can “walk” hand-over-hand from one end to the other.

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Playground safety

April 15th, 2010

Sometimes the safety of playgrounds is disputed in school or among regulators. Over at least the last twenty years, the kinds of equipment to be found in playgrounds has changed, often towards safer equipment built with modern materials. For example, an older jungle gym might be constructed entirely from steel bars, while newer ones tend to have a minimal steel framework while providing a web of nylon ropes for children to climb on. Playgrounds with equipment that children may fall off often use mulch on the ground to help break their falls. Rubber mulch is gaining popularity due to its added ability to break falls.

A study done by the Canadian Institute for Health Information found that playground injuries were responsible for 23 visits a day to emergency rooms in Ontario, Canada. The largest proportion of these visits were for orthopedic and head injuries (51% and 22% respectively.) In the United States, approximately 200,000 emergency room visits occur each year because of accidents on commercial and residential playgrounds.

In the United States the Consumer Product Safety Commission and the American National Standards Institute have created a Standardized Document and Training System for certification of Playground Safety Inspectors. These regulations are nation wide and provide a basis for safe playground installation and maintenance practices. ASTM F1487-07 deals with specific requirements regarding issues such as play ground layout, use zones, and various test criteria for determining play ground safety. ASTM F2373 covers public use play equipment for children 6-24 months old. This information can be applied effectively only by a trained C.P.S.I. A National Listing of Trained Playground Safety Inspectors is available for many states. A Certified Playground Safety Inspector (CPSI) is a career that was developed by the National Playground Safety Institute (NPSI) and is recognized nationally by the National Recreation and Park Association or N.R.P.A. (Some information sources offer interactive examples of playground equipment that violates CPSC guidelines.)

European Standards EN 1177 specifies the requirements for surfaces used in playgrounds. For each material type and height of equipment it specifies a minimum depth of material required.EN 1176 covers playground equipment standards. In the UK playground inspectors can sit the examinations of the Register of Play Inspectors International at the three required levels - routine, operational and annual. Annual inspectors are able to undertake the post-installation inspections recommended by EN 1176.

The risk aversion of prioritising safety above other factors, such as cost or developmental benefit to the users, is often forgotten. It is important than children gradually develop the skill of risk assessment, and a completely safe environment does not allow that. A playscape or forest kindergarten are steps towards a balanced approach to risk.

Playground equipment standards in the uk playground inspectors can sit the examination of the register of play inspectors international at the three required levels routing operational and annual inspectors are able to undertake the post installation inspection recommended by EN 1176

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Tire swings

April 12th, 2010

A swing is a hanging seat, usually found in a playground for children, a circus for acrobats, or on a porch for relaxing. The seat of a swing can be attached to a chain or a rope. Once a swing is in motion it continues to oscillate like a pendulum until external interference or drag brings it to a halt. Swings are the favorite of kids. Nowadays, swings are of various kinds. Just based on the material, they can be separated into metal swings, plastic swings, wood swings, rope swings, rubber swings and so on. The following is a brief introduction of Tire swings.

Tire swings are a form of swing made from a whole tire. These are often simply a new or used tire hanging from a tree on a rope. On commercially developed playground swing sets, oversized new tires are often reinforced with a circular metal bar to improve safety and are hung on chains from metal or wooden beams. They may hang vertically or hang flat, suspended from three of more points on one side. These flat type of swings can hold three or more children. Pumping is achieved by using one or two of the three chains attached to the swing, and two (or more) children can pump in turn. Tire swings can also be used in spinners, where the occupants use their feet to propel the tire. Children find ways of performing dangerous stunts on tire swings, and because of this, many have been removed from schools and parks

Building tire swing is an easy and interesting thing to do. The materials include Tire, Thick rope, One large tree with a strong, sturdy limb, Power drill, and A ladder. Adding a traditional tire swing to your home may not only bring back childhood memories, but will allow your children to also create similar memories of fun filled moments playing with friends! A tire swing is fairly easy to assemble and only requires a minimal amount of time and a few basic, easy to acquire supplies.

By using a large tire for a backyard swing set, at least three children can swing at the same time on one swing. The children simply take turns pumping or causing the tire swing to go back and forth. The children can also use their feet to twist the chains around each other then hold their feet up off the ground to allow the chains to un-twist creating a spinning motion

want a great swing set? Just come Y&G company, there are kinds of swing sets, for kids and adults, plastic and metal, indoor and outdoor, simple and classical, etc. you can definitely find the one you like.

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