== == There is only one type of hockey puck. It is made of vulcanized rubber. The size and weight are regulated. It is a three inch disk, one inch thick, and weighs between five and a half ounces, and six ounces.
Black pucks=6 oz. Blue pucks=4 oz. Orange pucks=10 oz.
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Hockey pucks are made of black vulcanized rubber. Earlier pucks were laminated from two pieces glued together often from recycled tyres. In the nineteenth century turned wooden blocks were used.
It looked like an ordinary hockey puck you would use in an NHL game.
The hockey puck was invented so hockey players had something to shoot into the goal.
Jacques Plante, who insisted upon wearing his mask during NHL games after a puck broke his nose.
the volume of a puck is 9.62115 inches
There are a few differences between the two, most having to do with rules: * In Olympic hockey, the rink is longer and wider. * Goaltenders in the NHL are only allowed to play the puck behind the goal line within an octagonal shape marked by a visible line out from the back of the net. Olympic goaltenders can play the puck anywhere behind the net. * In the NHL when a player shoots the puck down the ice from his own half of the center line an opposing player must touch the puck first before icing is called. Olympic hockey uses "no touch" icing which means play is whistled dead as soon as the puck crosses the goal line. * If an Olympic player fights he is ejected from the game, whereas NHL players just serve a 5 minute penalty. These are just a few key examples, as naturally there are other differences. Basically, NHL play is more aggressive while Olympic hockey is more passive and positional.