RE: Houston has been hosting the World Table Tennis Championship
The surfaces of the professional table tennis "bats" are incredibly sticky, unlike what the typical player uses for playing in the basement. The balls have all their weight on the rim, with only air in the inside, and the sticky surfaces of the bats put an incredible spin on the ball. In effect, the balls are "sizzling" with spin.
If you were to hold your bat pointing directly at the opposite side of the table, and your opponent hits a topspin shot to you, the ball would go up about 45 degrees, way over the other side. You must angle your bat about 45% down, and when the ball hits your bat the spin is reversed, sending topspin back to your opponent.
Instead of reversing the spin of a topspin shot, you can also go with the spin, chopping down with a speed equal to the spin, sending underspin back to your opponent.
The same principle holds if you are receiving underspin or sidespin.
To make everything even more complicated, a player can use a surface on one side that is slippery as ice. The player will try to disguise which side he is using on his serves. Receiving a shot with this side sends the same spin right back to the server. However, this surface is mainly used for backhands, and is not good for offensive shots. The players must use different colors for each side of the bat so your opponent can know which surface you are using.
The server is like a pitcher in baseball, trying to disguise the spin he is sending you. Besides sending variations of sidespins with underspins, he can send a screwball which comes at you with axis of the spin directly at you. If you angle the bat downward, the ball will go into the net. If you angle the bat upward, you will pop it up for an easy kill. You must hit the ball back right on the pinpoint of the spin axis.
Like a pitcher in baseball. the server can cheat and serve a spitball. This is why the players are always wiping the sweat off their hands, and making sure the umpire sees it.
If you have a powerful enough forehand, you can nullify the spin on the ball, since the ball remains on your bat for a tiny amount of time. For example, a kill shot for a high ball, with a hard enough swing, can nullify the spin.
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