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Top tips to help you choose your best table tennis table.Part two - What's the difference between an indoor and outdoor table tennis table. In this six-part series, we're looking at how to choose the best table tennis table for YOU. With so many different tables to choose from, and with some tables costing a lot of money, it's important that you make the right decision. So, the next important consideration is whether your table will be used indoors or outdoors. Indoor and outdoor tables are fundamentally different and therefore it's important that you understand the basic differences between them.
Table tennis tables are available in many different varieties and although table tennis is generally played indoors, it can also be played outdoors. However, to play table tennis outdoors you'll need the right type of table and the right weather conditions.
Unless you need a table solely for outdoor use, I'd always recommend that you buy an indoor table rather than an outdoor table.
Some indoor tables can be used outdoors for short periods of time but you'll need to move them back inside after you've finished playing. However, I wouldn't advise this because if you leave your indoor table in direct sunlight even for just a short period of time, it could warp it. You'll also need the table to be robust enough to withstand any gusts of wind it may encounter, and cheaper models may not be sturdy enough to be taken outdoors.
Additionally, if you want to play table tennis outdoors you need it to be dry, and just as important, it mustn't be windy as this will affect the flight of the ball. Windy conditions will also cause debris to be blown onto the table surface which can impede the bounce of the ball.
Indoor tables need to kept at room temperature and not subjected to extreme temperature variations as this can also cause them to warp or for the top surface to come apart.
However, if you really do need a table tennis table that'll be left outside permanently, you'll need to ensure that it's designed specifically for outdoor use. Outdoor tables are constructed differently and the best models have galvanised steel undercarriage, net and posts, and a weatherproof top surface - like this example from Butterfly.
But if you want the most durable, weatherproof outdoor table available, then you'll need a concrete table tennis table. Concrete table tennis tables are made entirely of concrete and have a polished top surface. However, good quality outdoor tables cost considerably more than indoor tables, so I would only recommend buying an outdoor table when you have to leave it outdoors permanently.
Cheaper outdoor tables are often made of aluminium, melamine, plywood resin or other types of resin to help them withstand the outdoor environment. Additionally, they usually have thinner top surfaces than indoor tables - although this helps you to manouevre them more easily.
In general, the more you pay for an outdoor table, the better you can expect the water and rust proofing treatment to be, and the stronger the legs will be. You also need to consider the long-term cost of an outdoor table as they may only last a few years before needing to be replaced.

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Although the standards involve outdoor concentrations, people spend, on average, about 90 percent of their time indoors—70 percent of that in homes. The field study collected time and chemical data on both indoor and outdoor concentrations of PM2.5, while ventilation, heating and cooling conditions were manipulated in the house. The research house was outfitted with a number of instruments to characterize particle size and chemistry simultaneously both indoors and outdoors, as well as meteorological variables including temperature and relative humidity. Figure 3 shows results from the ICVC system, which show the variation in indoor and outdoor aerosol concentrations for a four-day period during the December measurement effort. In general, during periods of increased ventilation rate, the difference between the indoor and outdoor concentrations decreased.
The differences in behavior between individual PM2.5 chemical species and the dissociation of the ammonium nitrate aerosol illustrate that an exposure assessment based on total particle mass measured outdoors may not accurately represent actual human exposures to indoor particles of outdoor origin and may obscure the causal relationships involved. Nancy Brown served as principal investigator for this research, and Rich Sextro along with Susanne Hering (of Aerosol Dynamics Inc. This research was funded by the Department of Energy through the National Petroleum Technology Office and the Western States Petroleum Association. It is a perfect marriage between automotive electronic technology and information networking.
Our high quality coating equipments could produce nice feeling mirrors with high reflection. The extent to which indoor concentrations of airborne particles track outdoor concentrations over time is not well understood.
Department of Energy through the National Petroleum Technology Office and the Western States Petroleum Association, a team of Environmental Energy Technologies Division (EETD) scientists, led by Tracy Thatcher and Melissa Lunden, has been investigating indoor particulate matter that originates outdoors. Schematic of the Clovis, CA research house showing the important processes that affect the indoor concentration of outdoor PM2.5.
Data from the ICVS showing the variation in indoor (blue solid line) and outdoor (red dotted line) carbon, sulfate, and nitrate for a four-day period during the December intensive.
The most striking feature of Figure 3 is that the individual chemical constituents of PM2.5 behave differently after entering into the residence. You can find evidence that Egyptians played a sport very similar to modern day field hockey as long as 4,000 years ago.
These standards are based on evidence of associations between outdoor PM2.5 concentrations and adverse health effects.
Perhaps more importantly, even less is known about the behavior of important chemical species that make up the particulate matter.
The objective of the study is to characterize the fate and transport of outdoor PM2.5 in the indoor environment. The house was unoccupied during these measurements to remove any confounding effects of indoor sources. A new instrument, developed in part for this study, was key to characterizing the time-resolved behavior of important chemical species.

The results show that there is considerable variability in both the indoor and outdoor concentrations of all three species as well as in the magnitude of the difference between the indoor and outdoor concentrations. The difference between indoor and outdoor ammonium nitrate concentrations is much greater than the differences measured for sulfate or carbon. The extent to which it may or may not be a significant source of indoor exposure has important policy implications for control of sources that lead to ammonium nitrate formation. Other EETD scientists who contributed to the project are Marc Fischer, David Littlejohn, Lara Gundel, Thomas Kirchstetter, and Ray Dod. It has been played in the United States since it was imported from England in the early 1900s. However, the relationship between indoor and outdoor concentrations of these fine particles is poorly understood and has important implications for public health.
The team conducted a series of intensive field experiments in an unoccupied, single-story residence in Clovis, California, a suburb of Fresno, in the San Joaquin Valley (Figure 1).
Ammonium nitrate is a chemically active species that exists in equilibrium with gaseous nitric acid and ammonia. These results emphasize the need for chemical characterization of PM2.5, and further studies of the physical and chemical transformation processes influencing the indoor concentration of particles that originate outdoors. If the type and condition of residences affect indoor concentrations, then relevant regulations need to be reevaluated in light of scientific research focused on indoor exposures. Figure 2 shows a schematic representation of the numerous physical processes that affect the transport and fate of outdoor aerosols that travel indoors. Upon entering the residence, the ammonium nitrate dissociated into its gas phase precursors, which were subsequently lost to the house surfaces by diffusion. About us Use of this site constitutes acceptance of the Terms of use, Cookie policy, and Privacy policy of eHow.
The outdoor field is similar in size to a football field, 100 yards long and 60 yards wide. If you are a beginner you will want to look for a flexible stick that reduces power but lets you control the ball more efficiently.
An expert player wants a heavier stick with less flexibility to get off those hard shots and firm passes.
All of the components such as the shaft and the blade are slightly smaller than their outdoor counterparts. There are also pure composite sticks, meaning they are fabricated entirely of man-made materials.You can also find sticks that combine manmade and natural components. Indoor sticks are designed to be lighter and more flexible to reduce the velocity of shots and to be less dangerous on the smaller field. The heavier construction makes it more difficult to do intricate moves, and its lack of flexibility can hurt someone in the tight surroundings. If you play in a well organised, refereed situation, you will not be able to use an outdoor stick indoors. Because of its lighter construction it can be easily broken playing in the rougher outdoor game.

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