Showing posts with label strings. Show all posts
Showing posts with label strings. Show all posts

Spin Ball: The Physics of Polyester String

TENNIS.COM article published today highlights the "Pros of Poly" and why using Polyester strings is now almost mandatory for the top players of the game.
The modern game of tennis has become so powerful with the advent of racket technology that we are seeing men's forehands regularly approaching and even exceeding 100 MPH! At such high velocities, the forces of gravity are not strong enough to pull a normal groundstroke down into the court fast enough...

Enter Topspin and the Secret of Polyester
With Polyester and Co-Polyester strings, the strings will actually stretch for a few milliseconds with the ball, stop and then quickly snap back like taut bow. This action helps whip the ball and rotate it sideways as it comes off the strings, creating the top spin effect. Normal topspin generated from nylon or multi-filament strings "brush" against the ball but do not have the same recoiling effect. 
TENNIS.com: Racquet experts generally say that string technology has impacted the game more than the racquet technology in recent years. Do you have any thoughts on the next wave of string technology and what it would mean to tennis?

The Science of "Super Spin Strings" w/ slow-mo video analysis

IMAGE CREDIT: CLIVE BRUNSKILL/GETTY IMAGES
In this article by the Atlantic Magazine, author Josh Speckman explains the physics behind Rafael Nadal's incredible spin potential and how technology has taken modern tennis to a completely different dimension today.

There is also an excellent video that shows this "snap back" effect of polyester strings. "Co-polyester" strings such as the acclaimed Cyber Flash and Cyber Blue strings are merely poly strings coated with special lubricants that allow the string to slip and slide back into place after contact. They propel the ball with a recoiling snap effect while maintaining the durable characteristics of polyester.

In the video, skip forward to 5:30 for a super-slow mo clip: The New Physics of Tennis: Unlocking the mysteries of Rafael Nadal’s killer topspin (Thanks to Chris for forwarding this to me!)

David Emery - Topspin Cyber Blue String Review

David Emery is now the WTA hitting partner for Liezel Huber (currently #3 in WTA Doubles). She recently won the 2010 US Open Mixed Doubles with Bob Bryan. Congrats Dave on the promotion! Check out some of David's other Tennis Tips.





Buy 4 get 1 Free at HolabirdSports.com
Package - Topspin Cyber Blue 1.25 17 - Tennis String Packages

Note: To avoid a stiff feel with poly strings, it is recommended that you string all poly's 10% lower in tension. David has had good results after lowering his racket tension from 63 lbs to 57 lbs. Cyber Blue offers great control and feel as a durable cross string.

Poly Reel

Head Instinct (YouTek and LM), Cyber Flash 17g for mains, Ace 18 and Cyber Blue for crosses (respectively).

Agassi in his autobiography Open comments: "polyester string, which creates vicious topspin has turned average players into greats, and greats into legends. (Open, p.343)"

Best String of 2010: Topspin Cyber Flash 17g + Get 10% off Promo Code!

Tennis-Bargains.com is offering for a limited time, a 10% OFF Promo Code 'tennisbargains' for all Topspin Cyber Flash and Cyber Blue stirngs & reels at www.theTennisDepot.com

Buying in Bulk - save more
If you try the string and decide you want to get more, I would recommend that you buy the mini-reels, regular reel and also the Jumbo reel of Cyber Flash 17 to save even more on shipping PLUS get 10% off.

*Grand Opening*
Come visit Jacky's eTennis Store

My Amazon.com Tennis Store Grand Opening

I've handpicked some of the tennis items they have for sale and put them all in one eStore.

Amazon.com is now offering a 1-month's FREE trial of Amazon Prime (2nd Day shipping) and price matching most competitor prices too.

Please let me know what you think and if there are any other Tennis Products you would like me to review or add to the virtual shelves, please let me know =)  TennisBargains@gmail.com