what is inside of a ping pong ball?
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the hopes and dreams of midgets
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u can  take rod shaped plastic pipe of different sizes & pingpong balls at sides. cover them with clay to give them shape of a bone, then use  thin elastic rubber ( which are used in rubber band, thin white in color) use many of them  as muscle fibre by attaching them to bone
911285
I have seen a lot of tennis rackets made from laminated wood (in the older days). I have seen them made from engineering plastics and fiberglass laminates, but the latest craze is graphite composite materials which make the rackets lighter, stronger, and generally warp free unlike the old wood versions. Stringing of the racket has pretty much remained with catgut. The graphite racket hold tension much better as well.
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NOW FOR THE FULL ANSWER\n\nImagine a ping pong ball. Imagine it is the earth. Colour this ball in with a pencil, the thickness of that graphite coating is how thick the earth's crust is. The rest is liquid.\n\nWay back when earth version 1 was floating in space, moon v.1 come hurtling through space and hit earth v.1 on the edge. The two object tore through each other. They are liquid, not solid. The two mixed together and due to the dynamics of impacts, a blob about the size of moon version 1 blew out the other side. This is why earth and moon have similar composition. For  a few minutes they were one.\n\nNow we have earth v.2 and moon v.2. Remember both are liquid. All liquids have surface tension, that pulls them into a ball. There is also gravity, these balls are massive. This pulls everything to a central point. They are spinning, so this makes them a little out of round.
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When a tennis ball is used it will lose pressure and have less of a bounce.  However, there are devices which allow you to re-pressurize tennis balls and gain some of their original bounce back for a limited time.  The devices often have two parts where one end screws into the other and thus increases the internal pressure of the canister.  The balls inside the canister will eventually reach an equilibrium similar to the pressure inside the canister and this results in an increased bounce.
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www.atptennis.com\nit's all there
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A ping-pong ball is smooth, until you smash it.
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no. they do not. and its called ping pong here.
994079
woo hoo!! bring out the ping pong paddle.
670645
Here are a few shops I found on line:\nhttp://www.tatteredrabbit.com/cgi-bin/Store/store.cgi?product=michaelmiller_new&productid=MM1828_BLK&pid=1#MM1828_BLK\nhttp://www.bearpawquilting.com/cgi-bin/Store/store.cgi?product=novelty_group_3&productid=novg_87501_15&pid=1#novg_87501_15\nhttp://www.qbuprairieshop.com/cgi-bin/Store/store.cgi?product=novelties_games1&productid=shamash_p4362_billiardballs_&pid=1#shamash_p4362_billiardballs_\nhttp://www.buttonholeshop.com/cgi-bin/Store/store.cgi?product=Sports2&productid=sptwo_7&pid=1#sptwo_7\n\nThere are probably more.
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It's the "ball" in a game of badmitton that you swat over the net.  It's a weighted rubber half-ball with plastic "feathers" stuck in it allowing it to float more gently to the ground.
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sinks deeper.  The ship is displacing the water, not the ping pong balls.  Add ANYTHING to the ship and it will sink deeper, not rise.\n\nPS: Thumbs nose at B-redsoxer.
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Ball Terminology:\n* Red = basic object ball that is red in color\n* Ball color = any ball that is not red in color\n\nWhen there are still red balls on the table:\n1. your 1st shot on every turn must be a red(any red ball is ok).\n2. You must first pot a red to gain access to potting any ball color you wish. (the pocketed red shall remain in the pocket)\n3. Before potting a ball color, you must 1st state what color you are taking, and if any other ball(colored or red) goes on your attempt to take your chosen ball color, it will be regarded as a foul. (the pocketed ball color shall be taken out of the pocket and returned to its original spot at the table)\n4. This process is repeated until all red balls are pocketed.\n5. In the event that a ball is missed, the cycle is renewed with the shooting player required to pot a red ball 1st.\n\nWhen all red balls are gone:\n1. balls are pocketed in this order - yellow, green, brown, blue, pink, black\n\nFoul Rules:\n*** Cueball must make contact with object ball first otherwise, foul is committed( Penalty: 4pt or corresponding pt value of 1st ball hit, whichever is higher)\n1. If the cueball does not hit anything on the table, the ahooter's opponent may choose to take the shot, pass, or ask the shooter to redo the shot(taking the white to its original place before the shot took place)\n2. If the shooter commits a foul and the opponent has no clear path to an object ball, he may be allowed to take a freeball(any ball on the table). The freeball will take the pt of the original object ball.\n3. other basic rules apply(e.g. cueball pocketed, accidentally nudging any ball on the table, etc)\n\nBall quantity, points and orig spot(looking from the side opposite the arch):\n= RED(15) - 1pt each (in a triangle formation just below the PINK)\n= YELLOW(1) - 2pt (left side of BROWN)\n= GREEN(1) - 3pt (right side of BROWN)\n= BROWN(1) - 4pt (midpoint of the line connecting the arch\n= BLUE(1) - 5pt (center of table)\n= PINK(1) - 6pt (above the reds)\n= BLACK(1) - 7pt (below the reds)\n\nA game ends when:\n1. A player resigns because there are not enough balls on the table to make up for the opponent's score; OR he does not have enough options to execute a good snooker to force the opponent into a foul.\n2. All reds and ball colors are pocketed.\n\nWinner:\n- The player with the most points at the end of the game wins!
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i'm looking in it right now, screwdriver, playing cards, pliers, screws, nails, key chains, keys, scotch tape, electrical tape, golf ball, birthday candles, batteries (old and new), chip clips, paper clips, awww, i just found an old "eye spy" photo telescope of my niece and nephew at Sea World in 1995!  i wondered where that went...
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Check this site out:\n\nhttp://www.bowlingindex.com/products/balls/match.htm
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My guess is 2 things... First of all, the lower the air pressure, the less resistance that the ball will encounter along its path.  Secondly, if the ball is hollow (e.g. a tennis ball or basket ball) then the pressure difference between the inside and outside of the ball will reflect how easily it will bounce.
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i think its acid..........The kind of batteries you have in your toys and CD player are wrapped in nickel-plated steel. This steel case has a thin plastic coating on the outside. Inside are the three main parts of a battery: the anode, the cathode, and electrolyte. The anode is made of zinc metal, and electricity travels from the anode through a circuit back to the cathode. The cathode is made of manganese dioxide and graphite. The electricity then passes back to the anode through the electrolyte, which is a salt and water solution. Batteries may have other parts inside made of plastic, brass, and other materials. For a look inside a battery, check out this Duracell page. For more information about the shocking world of electricity, explore the Yahooligans! Electricity category.