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Spent an hour searching with little to no results besides a helmet change to prevent concussions.

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http://www.sportsnet.ca/hockey/nhl/10-events-that-changed-the-sport-of-hockey/

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too young of a leauge to find valid inventions or info on products besides jerseys and soccer balls.

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Chuck Taylors, Although they are now a widely popular casual shoe, Converse All-Stars were originally designed as a basketball shoe when they were invented in 1917.   With rubber soles and canvas hi-tops, Converse shoes were a unique and innovative shoe and have since become one of the top selling shoes of all time.

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Breakaway rims, breakaway rims were implemented in 1983. Before these rims, which bend as a player grabs onto them, and snap back into place when they're released, the backboards would break where the rim was and created falling glass and a hazard that could cancel a game.

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The shot clock, the 24-second shot clock has made a big difference. Before, teams could and did play keep-away the entire game. Now, less than a half-minute of keep-away costs you a turnover.

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The Glove, The baseball glove wasn't always a part of the game. There was a time when a player would rather smash his fingers catching a fast ball with his bare hands, than to pad them and be called a "sissy". In the 1870s common sense won, and players began to create a glove that would cushion the blow to the hand. Every time a player reached out with bare hands to catch the ball, a player risked serious injury. which is why this is important

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The Bat, bats were heavier and thicker than our modern day version, and there was a time when bats were flat on one side. Some early bats had knobs at the ends of their handles - others not, some with painted rings on them to identify a team's bat, and were two-and-a-half inches around, and could be any length really, whatever "suit the striker".

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Zepp. The zepp is a sensor you attach to the end of your bat that will show the angle of your swing and how fast your swing is. it is used to diagnose you swing.

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Artificial playing surfaces. increases the amount of traction a athlete can get on the field. it also is easier to manage than actual grass.

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The Instant replay also has impact beyond video review.  Team doctors are now joining referees under the video review hood.  Doctors are using the high definition, multi-angle, and slow motion features of instant replay to help diagnose exactly how an injury occurred.this helps with the teams and how injuries happen so they can recover faster.

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Helmet Audio, In 1994 it was approved, the NFL allowed in-helmet radio receivers for quarterbacks, this allowed the QB to receive a play directly from his head coach or offensive coordinator.