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Advantages and Disadvantages of Artificial Grass

June 10th, 2010

Artificial turf ,also named as artificial grasses,is a surface manufactured from synthetic fibers made to look like natural grass. It is most often used in arenas for sports that were originally or are normally played on grass. However, it is now being used on residential lawns and commercial applications as well. The main reason is maintenance — artificial turf resists heavy use (such as sports) better, and requires no irrigation or trimming. However, everything has two sides. There are both advantages and disadvantages for artificial grasses. The following are some items about features of artificial grasses.

The advantages of artificial grasses

Artificial turf can be a better solution when the environment is particularly hostile to natural grass. An arid environment or one where there is little natural light are examples.

Artificial turf can withstand significantly more use than natural grass and can therefore be used much more frequently. This allows sports ground owners to generate more income from their facilities.

Ideal for holiday homes when maintenance of lawns is not practical. It is also a solution for elderly homeowners who find the upkeep of lawns too much hard work.

Suitable for roof gardens and swimming pool surrounds.
Some artificial turf systems allow for the integration of fiber-optic fibers into the turf. This would allow for lighting or advertisements to be directly embedded in a playing surface, or runway lighting to be embedded in artificial landing surfaces for aircraft.

The following are the list of disadvantages of artificial grasses:

Abrasion injuries caused by artificial turf have been linked to a higher incidence of MRSA infections

Some artificial turf requires infill such as silicon sand and/or granulated rubber made from recycled car tires. This material may carry heavy metals which can leach into the water table.

Periodic disinfection is required as pathogens are not broken down by natural processes in the same manner as natural turf. Despite this, recent studies suggest certain microbial life is less active.

Friction between skin and artificial turf causes abrasions and/or burns to a much greater extent than natural grass. This is an issue for some sports: for example, football in which sliding maneuvers are common and clothing does not fully cover the limbs. However, with some third-generation artificial grasses, this is almost completely eliminated by the use of polyethylene yarn.

Artificial turf tends to be much hotter than natural grass when exposed to the sun.

When you plan to cover your backyard with artificial grasses, remember to choose the ones suitable to your requirement, not only the colors but also the quality should be considered.

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Free Climbing

May 14th, 2010

Free climbing is a type of rock climbing in which the climber uses only hands, feet and other parts of the body to ascend. No artificial aids are employed to make upwards progress; ropes and protection are used only as insurance against falls and their consequences.

In contrast, aid climbing is a practice employed primarily in extremely sheer vertical circumstances in which equipment is directly pulled or stood on to ascend.

An umbrella term, “free climbing” spans four subsets of climbing styles: traditional, sport, free soloing and bouldering.

The method involves a “leader” climbing a route from the ground up. To protect him/herself, the climber trails a rope which is managed by a belayer who remains on the ground or at an established anchor. As the leader climbs, he/she can either clip the trailed rope through pieces of traditional gear (cams, stoppers), placed in cracks, or clip the rope through gear already in place (bolts, pitons). If a climber falls while leading, he/she cannot comfortably sit back on the rope and be held by the belayer as in toproping (where the rope is anchored above the climber); rather, the leader will fall twice the distance between his/her position and the most recent piece of protection (a cam, stopper, bolt, etc.) that he/she clipped the rope through (assuming this piece of protection holds).

The belayer feeds rope to the lead climber through a belay device. The leader climbs, occasionally placing protection or clipping preplaced bolted hangers, until the top is reached. The belayer is ready to “lock off” the rope in case the leader falls.

Both climber and belayer attach the rope to their climbing harness. The rope is tied into the climber’s harness with a figure-of-eight loop or double bowline knot. The leader either places his own protection or clips into permanent protection already attached to the rock. In traditional climbing, the protection generally is removable. However, many significant first ascents in the U.S. done with a combination of crack gear and bolts placed on lead were termed “traditional” at the time (see below discussion). Usually nuts or Spring-loaded camming device (often referred to as “cams” or “friends”) are set in cracks in the rock (although pitons are sometimes used). In sport climbing the protection is metal loops called hangers. Hangers are secured to the rock with either expanding masonry bolts taken from the construction industry, or by placing glue-in bolt systems. In ice climbing the protection is made-up of Ice Screws or similar devices hammered or screwed into the ice by the leader, and removed by the second climber.

The lead climber typically connects the rope to the protection with carabiners or quickdraws. If the lead climber falls, he will fall twice the length of the rope from the last protection point, plus rope stretch (typically 5% to 8% of the rope out), plus slack. If any of the gear breaks or pulls out of the rock or if the belayer fails to lock off the belay device immediately, the fall will be significantly longer. Thus if a climber is 2 meters above the last protection he will fall 2 meters to the protection, 2 meters below the protection, plus slack and rope stretch, for a total fall of over 4 meters.

If the leader falls, the belayer must arrest the rope to stop the fall. To achieve this the rope is run through a belay device attached to the belayer’s harness. The belay device runs the rope through a series of sharp curves that, when operated properly, greatly increases friction and stops the rope from running. Some of the more popular types of belay devices are the ATC Belay Device, the Figure 8 and various auto-locking belay devices such as the Petzl Gri-Gri

If the route being climbed is a multi-pitch route the leader sets up a secure anchor system at the top of the pitch, also called a belay, from where s/he can belay as his/her partner climbs. As the second climber climbs, he/she removes the gear from the rock in case of traditional climbing or removes the quickdraws from the bolts in the case of sport climbing. Both climbers are now at the top of the pitch with all their equipment. Note that the second climber is protected from above while climbing, but the lead climber is not, so being the lead climber is more challenging and dangerous. After completing the climb, and with both climbers at the top of the pitch, both climbers must rappel or descend the climb in order to return to their starting point. All climbs do not necessarily require the lead climber to belay the second climber from the top. The belayer could lower the lead climber down after he/she has completed a single pitch route

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Bumper Boats

May 13th, 2010

Bumper boats are an amusement park ride that uses inner tube shaped watercraft that can be steered by the rider. Some are driven by electric motors, some by gasoline engines, and some require the rider to propel the craft by pedaling. Most are equipped with water guns for duels with other riders. Bumper boat attractions can commonly be found in places such as amusement parks, carnivals, fairs, family fun centers, and theme parks.

Another idea spawned during the decade of the 1930’s was the “Dodgem Motor Boats.” Like the Dodgem car, the boats were operator driven and seated two adults. As the Dodgem car had given many a first opportunity to “get behind the wheel of a car,” so the boats gave many their first chance to operate a powerboat. Streamlined and slick in appearance, the powerboats were designed to give both driver and passenger the feeling of a luxury ride in a lake or lagoon. A brief eyewitness description of the boats constructed for this new ride was written in July 1932: “Visited Amesbury with Markey and looked over his new Dodgem boat which is a very nice looking job. It is considerably longer than the water skooter made by Lusse [Company] and built on a different principal. These are made all of wood. This, if it operates satisfactorily, should prove a very nice boat.” Certainly the most elaborate early boat installation was done for the Chicago World’s Fair in 1933. Another elaborate and memorable Dodgem boat installation was constructed six years later for the 1939 New York World’s Fair. For this national event, the Dodgem Corporation teamed up with the Philadelphia Toboggan Company (PTC). Not only did they jointly operate a boat ride but also two Dodgem car rides. Both Dodgem and PTC were to have equal shares. Two buildings valued at $27,500 were to be put up by and mortgaged to the PTC, and Dodgem was to supply fifty cars valued at $20,000. For the boat ride, PTC was apparently responsible for the construction of a channel. How many boats were constructed or how profitable the three rides were is unclear. As to the popularity of boat rides, William Ford, who worked for Lusse Company after the boat craze had passed, reported: “They [boat rides] were very popular up to and after the second world war when operators wanted more space and had to get rid of the required lakes and artificial lagoons. Also, the price of gas went up as well as anti-pollution laws, which were forced on them [park owners] because of the filthy water that was in the lagoons. . .” Evidence suggests that Dodgem was out of the boat business by the time of the war. An expensive ride to install, outfit, and maintain, especially if a man-made lagoon was required, Dodgem motorboats were not destined to be the stellar performers that the cars proved to be. Elaborate boat rides would not return to the amusement park scene until Walt Disney and the development of theme parks in the late fifties and early sixties began to bring the likes of paddle wheelers and other large craft back to grand-scale manmade waterways.

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Soft Play

May 9th, 2010

At the first glance at the name, soft plays, maybe you cannot make out what exactly soft plays are. But once you see one concrete body of soft plays, you will know soft plays are those entertainment equipment which are quite familiar to us. And most children likes soft plays very much. Soft plays can be regarded both as toys and as kids furniture as well.

Generally speaking, soft plays is the general name for a large kinds of soft toys. Soft plays can be completed sets (such as soft chairs, soft sofas, etc.) as well as some separate pieces, which can be combined together by the children to form various of entertainment equipment (such as  climber and slide combined kids soft plays,  arch line kids indoor soft plays ,  splendid color kids combined soft plays,  kids combo soft plays,  multi-function kids hole soft plays,  body building high slope blocks,  locomotive soft plays set, jigsaw puzzle soft plays,  toddler pool ball, soft pedal shape desk ,etc.)

In my personal idea, the latter kind of soft plays are more interesting and attractive than the former kind of soft plays. Children can build their own recreational plays by flying their imagination. Besides, as a parent, you can also play with your children together to set up your soft plays. This can promote your children’s ability in hand making, designing, and imagination.

Soft plays can take you multi-kinds of entertainment. You can set slides, climber, castles, pools, holes, and even several of these together. And as you can think out, you can do by yourself to make them out by pieces of soft plays. Some flat soft plays can also play the roles as furniture, soft plays can be used for children as chairs, sofas, beds, mats, and so on. Different from the traditional furniture, soft plays are soft and comfortable. As a place for playing, soft plays can be moved easily, which makes them be more loved by children. What’s more, there are also soft plays as boxing bags, which can promote children’s health through exercise.

Modern soft plays are multi-color, soft, smooth, durable, lasting, and with a little elastic. Children can run, jump, sliding at their heart on soft plays. Various soft plays give a chance to children to realize colors, and to take an exercise. With these soft plays, it is unnessesary for you to spend energy to think about how to make your children be funny. They can definitely enjoy their fantastic soft plays. Soft plays can be largely used in kindergartens, yards, children amusement parks and so on.

Do not hesitate any more, buy a set of soft plays, you will be amazed by your children’s imagination. They can be pleased with more than one kind of entertainment.

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Kids Rides

May 4th, 2010

In the huge bicycle country, China, many people go out by bike. Bikes are an important transportation for adults. However, as for kids rides, they are much more for fun than for transportation.

Children love kids rides, for they regard them as their vehicles. Kinds of modern kids rides are various. kids rides can be of different material, different colors, different styles, and different shapes. Some kids rides are of two wheels, some kids rides are of three, and some kids rides are even of four. Some kids rides are in the shape of common bike, while some kids rides are in the shape of cars, tip lorry cars, plans. crane cars, or animal theme kids rides. These various shapes of kids rides make them be more attractive to children, and children would get more fun from these kids rides, because playing these kids rides is more than riding,

It is sure that there is little or even no requirement in speed for kids rides, and in some extent, parents do not prefer the kids rides to run fast, considering their children’s safety. The speed that kids rides can achieve is determined by how fast you children’s legs can pump. That may be just a little faster than your walking. This ensures that your children cannot go beyond your eye sight, and you can always keep any dangers off in time. However, there are still some tips for you to keep in mind in order to make sure that your children are totally in safety when you are playing kids rides.

Firstly, pay enough attention to the kids ride.  At the very beginning, you should choose suitable kids rides based on your children’s sizes and ages. Do not forget that wear and tear is unavoidable no matter how sturdy the kids rides are, so check the kids rides periodically. And once there are anything broken, repair them immediately, and keep every part of the kids rides in perfect condition. Do not allow any potential danger existing in your children’s riding.

secondly, take care to the ground. Make sure that your children play their kids rides on the flat floor, but not on rocky roads and muddy lanes, climb hills no matter how little they seem to be and zoom down slopes no matter how shallow they look. Your children may not content to be restricted to play kids rides in the back yard and eager to challenging the irregular floors, but tell them their kids rides are not suitable to these places, and encourage them to take good care of the kids rides.

what’s more, your children can never be allowed to play their kids rides near the pools, and garages. It is indeed a dangerous deal.

Thirdly, choose suitable clothing for them before they play kids rides. Shoelaces, drawstrings, and ribbons can get caught in the kids rides, which can cause injuries.

Hold these tips in your mind, and then your children can enjoy their lovely kids rides.

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Decorative Material

April 28th, 2010

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As most children like various colors and different shapes of things, kindergartens and children parks are always decorated with multi decorating materials. Here decorating materials are a little different from the decorating materials used in housing or living room decoration. Here decorating materials especially refer to those decorating materials used for kindergarten decoration or children’s rooms decoration, in other words, they are decorating materials for children.

Decorating materials is a greatly general name, they include floor decorating materials, wall decorating materials, ceiling decorating materials and some other pieces of decorating materials.

Most kindergartens adopt the PVC floor decorating materials. Comparing with other kinds of decorating materials, they have many advantages. Firstly, PVC floor decorating materials are environment friendly. These kind of decorating materials are made from Polyvinyl Chloride, which is a kind of nonpoisonous renewal resource. And PVC decorating materials have already been largely used in people’s daily live, as the materials for dishware and so on. Secondly, PVC floor decorating materials are ultra light and thin. The thickness of PVC floor PVC decorating materials is only 2-3mm, and the weight of per square meter is only 2-3KG. Thirdly, PVC floor decorating materials are extremely durable. PVC decorating materials can be used at least for 5 years. Fourthly, PVC floor decorating materials are sound absorbing. This makes PVC floor decorating materials be superior to other kinds of floor decorating materials. So PVC floor decorating materials are used at the places where quietness is required, such as bedrooms, wards, meeting rooms, libraries, and theaters. Fifthly, PVC floor decorating materials are in a wide variety of colors and styles. PVC floor decorating materials can provide for various theme decoration. Besides, PVC decorating materials can also be designed as different styles according to customers’ personal demand according to their special usage.

When the floor decoration is finished, the next step comes to the wall and ceiling decoration. The decorating materials for these two parts are usually wallpaper. Wallpaper decorating materials are of many different colors, pictures, and styles. And wallpaper decorating materials can be cut into hundreds of thousands shapes, such as animals, threes, flowers, housed, clouds, birds, boys and girls, buses, cars, boats, and so on. When decorate walls and ceilings, parents can firstly have s discussion with their children to make a decision of the theme of their rooms. Then give your children a paper and a pen to let them make a craft of their rooms. And children can cut wallpaper decorating materials into what they need by themselves and then stick them on the walls and ceilings. The room designed and decorated by oneself must be extremely beautiful.

Desert single and simple, decorating materials make the rooms, kindergartens, and parks more beautiful and mare attractive. Different decorating materials take you into different magic story worlds.

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Decorate Your House in Christmas Day

April 24th, 2010

On December 25, people around the world celebrate the birth of Jesus Christ. Some people celebrate by giving gifts. Children may be thanking Santa Claus for new toys. They may also be going to church with their families. Christmas has so many traditions and symbols associated with it, that it’s hard to determine exactly how it came to be the celebration it is today.

In order to celebrate the royal festival, many people will buy Christmas trees or some decorations to decorate their house, park, company or some supermarkets. Here I introduce inflatable Christmas to you. It is well suitable for decorating. Bright and colorful decorations would bring out the spirit of the season in your own home. Buy an inflatable Santa Claus to put your gate. It is very interesting. It just like the Santa Claus is dispatching the gifts. Although everyone enjoys Christmas Day, it is particularly enjoyed by children, who get very excited because of the presents they know they are going to receive.

No matter that you are decorating outdoors or indoors, it is important to be creative so that you can take a brand new look and get the festival feel. The inflatable Christmas is just made to give you this kind of bright new vision. Inflatable Christmas includes inflatable snowman, inflatable Santa Claus, inflatable reindeer, inflatable Christmas tree, and inflatables gifts. All of them are quite special and beautiful for Christmas decorations. Christmas is the right time for parties, family reunions and get-together with friends and families. For this important happy time, it is easy and convenient to use inflatable Christmas to decorate you sitting room to live things up. Your family members or friends must feel special when see these inflatable Christmas decorations. They may have never seen this kind of special decorations.

Santa Claus and his reindeer are always the hot topics for Christmas holidays. No matter how cold it is. Santa Claus will never absent. On the snow white world, Santa Claus is hurrying his way to each family with all kinds of beautiful gifts in his magic bag. Inflatable Christmas can come in all kinds of colors and sizes. This giant inflatable Santa Claus and his reindeer are suitable for public squares or parks.

Now you know how to decorate your house in Christmas Day. Buy your favorite inflatable Christmas to decorate your house, to enjoy a different Christmas Day.

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Playground Injury

April 20th, 2010

Approximately 156,040 (75.8 %) of the 1999 injuries occurred on equipment designed for public use; 46,930 (22.8 %) occurred on equipment designed for home use; and 2,880 (1.4 %) occurred on homemade playground equipment (primarily rope swings). Percentage of injuries involving public equipment

* About 46% occurred in schools.
* About 31% occurred in public parks.
* About 10% occurred in commercial childcare centers.
* About 3% occurred in home childcare.
* About 3% occurred in apartment complexes.
* About 2% occurred in fast food restaurants.
* About 9% occurred in other locations.

From January 1990 to August 2000, CPSC received reports of 147 deaths to children younger than 15 that involved playground equipment.

* 70% of those deaths occurred in home
* 30% of those deaths occurred in public use

Girls were involved in a slightly higher percentage of injuries (55%) than were boys (45%).

Injuries to the head and face accounted for 49% of injuries to children 0-4, while injuries to the arm and hand accounted for 49% of injuries to children ages 5-14.

For children ages 0-4, climbers (40%) had the highest incidence rates, followed by slides (33%).

For children ages 5-14, climbing equipment (56%) had the highest incidence rates, followed by swings (24%).

Approximately 15% of the injuries were classified as severe, with 3% requiring hospitalization.

The most prevalent diagnoses were fractures (39%), lacerations (22%), contusions/abrasions (20%), strains/sprains (11%).

Falls to the surface was a contributing factor in 79% of all injuries. On home equipment, 81% were associated with falls.

Most injuries on public playground equipment were associated with climbing equipment (53%), swings (19%), and slides (17%).

Based on these statistics and other research, the National Program for Playground Safety advocates that:

* Adults actively supervise the children in the play environment.
* Adults choose appropriate developmental equipment for the play environment.
* Adults provide safe surfacing both in the public use areas and at home for playground equipment.
* Adults insure that all equipment and surfacing located in the children’s play areas be maintained on a regular basis.

However, risk management is an important life skill, and risk aversion in playgrounds is unhelpful in the long term. Experts studying child development such as Tim Gill have written about the over-protective bias in provision for children, particularly with playgrounds. Mr Gill observes that when playgrounds are made from padded materials, children often take more risk. Instead of a constructed playground, allowing children to play in a natural environment such as open land or a park is sometimes recommended; children gain a better sense of balance playing on uneven ground, and learn to interpret the complexity and signals of nature more effectively.[citation needed

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Modern inflatable boats

April 15th, 2010

An inflatable boat is a lightweight boat constructed with its sides and bow made of flexible tubes containing pressurised gas. For smaller boats, the floor and hull beneath it is often flexible. On boats longer than 3 metres/10 feet, the floor often consists of three to five rigid plywood or aluminium sheets fixed between the tubes but not joined rigidly together. Often the transom is rigid, providing a location and structure for mounting an outboard motor.

Some inflatable boats have been designed to be disassembled and packed into in a small volume, so they can easily stored and transported to water when needed. Here the boat when inflated is kept rigid crossways by a foldable removable thwart. This feature allows such boats to be used as liferafts for larger boats or aircraft, and for travel or recreational purposes.

Inflatable liferafts were also used successfully to save crews of aircraft that ditched in the sea; bombing, naval and anti-submarine aircraft flying long distances over water being much more common from the start of WWII. The PBY Catalina made by Consolidated Aircraft and Canadair seems to have been the first aeroplane to have had an inflatable life boat aboard, first as optional, later as standard equipment. A later version of that inflatable was pressurized by a gas cylinder rather than by mouth. A wire connected to the plane opened the cylinder valve in the inflatable after the life raft was thrown into the water.

Until the middle 1950s inflatables were still rafts in civilian use, hand paddled but the outboard motor came into use in the early 1950s. (The outboard motor was invented in 1909 by Ole Evinrude.)

Also in the 1950s, the French Navy officer and biologist Alain Bombard was the first to combine the outboard engine, a rigid floor and a boat shaped inflatable. The former airplane-manufacturer Zodiac built that boat and a friend of Bombard, the diver Jacques-Yves Cousteau began to use it, after Bombard sailed across the Atlantic Ocean with his inflatable in 1952. Cousteau was convinced by the shallow draught and good performance of this type of boat and used it as tenders on his expeditions.

The inflatable boat was so successful that Zodiac lacked the manufacturing capacity to satisfy demand. In the early 1960s, Zodiac licensed production to a dozen companies in other countries. In the 1960s, the British company Humber was the first to built Zodiac brand inflatable boats in the UK.

Some inflatables have inflated keels whose V-shape help the hull move through waves reducing the slamming effect caused by the flat hull landing back on the surface the water after passing over the top of a wave at speed.

The modern rigid-hulled inflatable boat (RHIB) is a development of the inflatable boat which has a rigid floor and solid hull. The external shape of the hull lets it cut through waves more easily giving a more comfortable ride when traveling fast in rough conditions. The structure of the hull is capable of supporting a more powerful transom mounted outboard engine or even an inboard engine.

Some RHIBs may be 14 metres (45 ft) in length and may include inboard steering, luxury features and full cabins.

Although most rigid multifunction dinghies are not actually inflated, they are buoyed partly by air chambers in the hull as well as by closed-cell foam inside the hull. In addition to their proactive lifeboat functionality, these boats serve as everyday tenders and as recreational boats. They are extremely buoyant and/or unsinkable and have great carrying capacity relative to length.

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Inflatable Tunnel

April 12th, 2010

An inflatable tunnel or air-inflated tunnel is a tunnel that is inflated by an external cold air inflation fan connected to the tunnel via an inflation tube. Inflatable tunnels are customarily 10′ to 30′ long when inflated and often attached to inflatable helmets, mascots or team logos.

Inflatable tunnels are typically used by professional, college and high school sports teams and first started appearing in the 1980s. One of the first inflatable team tunnels was used by the San Diego Chargers in 1994. Most NFL teams use an inflatable tunnel for player introductions.

Inflatable sports tunnels are now available for all types of events and for any budget. And they come in all shapes and sizes too! Imagine a giant football player (in your team’s colors) standing over a huge entry tunnel. Or how about a huge inflatable football helmet as the front for the entrance tunnel. You can even have your team mascot made up into a giant inflatable standing over a cool sports entrance tunnel…in matching colors!

Can you imagine the roar of the crowd as the cameras start snapping and memories are captured of your favorite team running out of the tunnel? As the crowd gazes upon the teams new sports tunnel feelings of PRIDE, ENTHUSIASM AND TEAM SPIRIT begin to stir inside, it’s really almost too much to contain. You’ll find it amazing to see how much energy is activated with a custom team color inflatable entrance tunnel.

Many times smaller schools don’t feel like they can afford an entry tunnel, but they don’t always look at the total picture. Area sponsors will quite often want to be a part of this atmosphere of excitement and enthusiasm and they will be willing to pay for ad space on the entrance tunnel. They know the captive audience will not only remember the team running through the tunnel…but also the name of the sponsor on the side. Many inflatable sports tunnel manufacturers offer sponsorship banners on teams blast tunnels and this will help to pay much if not all of the tunnels cost.

Team tunnels can be customized to match team colors, graphics and logos and of course schools can supply their own graphics and those of the sponsors to create a custom entrance tunnel that will WOW the fans.

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