Little Kids Junk Ball Home Run Challenge

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Not only does Home Run Challenge provide everything you need to set up a baseball field that's ready for action with any number of players (1 to 18), but, Junkball baseballs apply scientific principles from both physics and aerodynamics to produce pitches you can throw that truly baffle a batter! -- In the early 1950's scientists were able to use strobe photography and wind tunnel tests to prove that baseballs really did curve when pitched. Curveballs, screwballs, and sliders were not optical illusions! -- From the time baseball was invented, pitchers looked for advantages over hitters. Along with inventing new pitches, they soon discovered that baseballs with scuffs, cuts, or nicks to their covers spun differently when thrown towards home plate. These cuts disrupt the airflow around the ball-air resistance is increased on the cut or scuffed side of the ball and this causes the ball to move in the opposite direction. -- A junk ball pitch is a trick pitch usually thrown by pitchers who do not have an overpowering fast ball or a breaking curve ball. How does our Junk Ball work? -- Real baseball pitchers make use of the stitches or seams of a baseball and a wide variety of throwing grips to put spin on the ball. If a baseball were smooth it would always travel in a straight line towards the batter. Only the forces of gravity would have an effect and cause the ball to drop towards the ground as it approached home plate. -- The baseball seams plus a pitcher's throwing motion causes the ball to spin against the wind as it travels through the air. There is a difference in the resistance of air around the ball and the ball moves in the direction of least resistance toward the direction it is spinning (The Bernoulli Principle). Speed has an effect on the ball's movement.
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Technical Details

- 13 piece set includes everything needed including 4 junk ball baseballs and a black sweet spot 32" plastic junk ball bat
- Rules for playing 4 exciting games includes
- Create a ball park in your own backyard
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 "Great fun but broken already" 2010-01-01
By Kcirtap (North Carolina, USA)
My son loves this toy. He took it out with his friends in 40 degree weather to play. As noted, the balls are fragile and 2 of 4 have already broken. I guess I'll buy some whiffle balls. The cheap foam bases and the markers remain unused, but the markers are of similar quality to those used in football practice (marking the end zone etc.). They may be of considerable use in games other than junk ball. The list of games they refer to is nothing you can't make up yourself. I had to give it 3 stars due to the balls breaking, otherwise 5.



Also, unless I'm missing something, this is a better deal than: Official Junk Bat & Ball Set


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