To curl a rock in curling, impart a clockwise or counter-clockwise rotation as you release the stone. This rotation causes the stone to curl in the direction of the spin as it travels down the ice.
Understanding Curling Rotation
The key to making a curling rock curl lies in the rotation you apply during its release. This rotation influences the friction between the rock and the ice, leading to the curved path.
In-Turn vs. Out-Turn
- In-Turn: For a right-handed player, a clockwise rotation (also known as an "in-turn") causes the stone to curl from left to right.
- Out-Turn: A counter-clockwise rotation (an "out-turn") makes the stone curl from right to left.
How Rotation Creates Curl
The rotation creates differential friction under the rock. As the rock travels, the leading edge of the rotation melts a thin layer of water under the rock. This lubricates that side, allowing it to travel slightly further and faster than the other side, thus creating the curl.
Sweeping Influence
While the rotation is key, the sweepers also play a vital role. Sweeping in front of the stone reduces friction, making the stone travel further and straighter (less curl). The sweepers communicate with the skip (team captain) to control the stone's path and distance.
Steps to Curl a Rock:
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Start in the hack: Position yourself firmly in the hack (the foot holds).
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Grip the handle: Hold the curling rock handle firmly, ensuring a comfortable and controlled grip.
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Slide out: Slide out from the hack smoothly, keeping the rock aligned with your target.
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Release with rotation: As you release the rock, impart the desired rotation (clockwise for in-turn, counter-clockwise for out-turn) with a slight twist of your wrist. The amount of rotation determines how much the rock will curl.
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Follow through: Follow through with your arm in the direction you want the rock to travel.
Factors Affecting Curl
Several factors influence the amount of curl you'll achieve:
- Ice Conditions: The condition of the ice surface significantly impacts curl. Warmer ice generally curls more.
- Rock Speed: Slower rocks tend to curl more than faster rocks.
- Rotation Speed: The speed and consistency of the rotation applied when releasing the rock. More rotation equals more curl.
- Sweeping: Sweeping affects both distance and curl. Proper sweeping straightens the rock's path.
By mastering the release and understanding these factors, you can effectively curl a rock and improve your curling game.
