cork,thread, and leather
Good quality baseballs and softballs are made completely differently. Inexpensive softballs are made of a cork and rubber mixture and a vinyl or other synthetic cover, then stitched with yarn. The vast majority of softballs, both slowpitch and fastpitch, are made of a solid polyurethane core and a leather cover stitched with nylon thread. The cover on better softballs is glued to the core before stitching. A fastpitch softball has raised seams and a slowpitch softball has flat seams. The core is the ball itself, not to be confused with COR, which stands for Coefficient of Restitution. Softballs are measure by two variables - COR and Compression. The higher of either number the harder the ball. The compression is simply the pounds per square inch required to compress the ball 1/4". The COR is the speed in which the ball goes from the compressed state back to its original round state (rebound).
How many 3s in 313433535333?
Is it true that one human year is equal to seven dog years?
How many fifths are in 6 tenths?
What is half of 74?
Who has won World Series both as a player and manager for the New York Yankees?
How do you spell water with 3 letters?
The more you take the more you leave behind what am I?
What Roman Numeral is xxx1x?
What is doomscrolling?
How did the Wiffle Ball get its name?
Do schools still teach cursive writing?
Can eggs break inside a chicken?
Why do books come out in hardback first?
What happens when a beehive gets too full?
What is the difference between an optometrist and an ophthalmologist?
How can you tell when someone's lying?
What are the advantages of stress interview?
Why the story entitled origin of fair complexion and fair hair?
Ano ang kahulugan ng iskolarling pagpapahayag?
What is a classified data spill or negligent discharge of classified information?
Ano ang papel na ginagampanan ng mga impormasyong ito sa mapa o sa globo?
Which of the following statements is true about storing classified documents?
When two pieces of cui or other unclassified information are posted online together?
What are the solutions to the crazy kiwi game?
Copyright © 2020 Multiply Media, LLC. All Rights Reserved. The material on this site can not be reproduced, distributed, transmitted, cached or otherwise used, except with prior written permission of Multiply.