A skate can slide over ice because the ice molecules at the surface cannot properly bond with the molecules of the mass of ice beneath and thus are free to move like molecules of liquid water. These molecules remain in a semiliquid state, providing lubrication. It had long been believed that ice is slippery because the pressure of an object in contact with it causes a thin layer to melt. The hypothesis was that the blade of an ice skate, exerting pressure on the ice, melts a thin layer, providing lubrication between the ice and the blade. This explanation, called “pressure melting”, originated in the 19th century. This, however, did not account for skating on ice temperatures lower than −3.5 °C, whereas skaters often skate on lower-temperature ice. In the 20th century, an alternative explanation, called “friction heating”, was proposed, whereby friction of the material was causing the ice layer melting. However, this theory also failed to explain skating at low temperature. In fact, neither explanation explained why ice is slippery when standing still even at below-zero temperatures.
Contact – Futurechampz sports and skating Coaching Academy
FutureChampz programs
Skating Academy – SDAT Stadium-Nungambakkam,
Skating Academy – Haddows Road Park-Thousand Lights ,
Athletics Classes – SDAT Stadium,
swimming coaching- Anna Nagar,
BasketBall coaching- Nungambakkam,
Venkatesan K [ Head Coach – Operations ]
9884876151 or 7200041230
Office Landline : 044 3555 1718
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